Reorganize source files into logical subdirectories

Co-authored-by: Hirek193 <23196899+Hirek193@users.noreply.github.com>

utilities/Classes.h

@@ -0,0 +1,94 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#ifndef ClassesH
+#define ClassesH
+//---------------------------------------------------------------------------
+// Ra: zestaw klas do robienia wskaźników, aby uporządkować nagłówki
+//---------------------------------------------------------------------------
+class opengl_renderer;
+class opengl33_renderer;
+class TTrack; // odcinek trajektorii
+class basic_event;
+class TTrain; // pojazd sterowany
+class TDynamicObject; // pojazd w scenerii
+struct material_data;
+class TAnimModel; // opakowanie egzemplarz modelu
+class TAnimContainer; // fragment opakowania egzemplarza modelu
+class TModel3d; //siatka modelu wspólna dla egzemplarzy
+class TSubModel; // fragment modelu (tu do wyświetlania terenu)
+class TMemCell; // komórka pamięci
+class cParser;
+class sound_source;
+class TEventLauncher;
+class TTraction; // drut
+class TTractionPowerSource; // zasilanie drutów
+class TCamera;
+class scenario_time;
+class TMoverParameters;
+class ui_layer;
+class editor_ui;
+class itemproperties_panel;
+class event_manager;
+class memory_table;
+class powergridsource_table;
+class instance_table;
+class vehicle_table;
+class train_table;
+struct light_array;
+class particle_manager;
+struct dictionary_source;
+class trainset_desc;
+class scenery_desc;
+
+namespace plc {
+using element_handle = short;
+class basic_controller;
+}
+
+namespace scene {
+struct node_data;
+class basic_node;
+using group_handle = std::size_t;
+}
+
+namespace Mtable
+{
+class TTrainParameters; // rozkład jazdy
+class TMtableTime; // czas dla danego posterunku
+};
+
+class TController; // obiekt sterujący pociągiem (AI)
+
+enum class TCommandType
+{ // binarne odpowiedniki komend w komórce pamięci
+    cm_Unknown, // ciąg nierozpoznany (nie jest komendą)
+    cm_Ready, // W4 zezwala na odjazd, ale semafor może zatrzymać
+    cm_SetVelocity, // prędkość pociągowa zadawana na semaforze
+    cm_RoadVelocity, // prędkość drogowa
+    cm_SectionVelocity, //ograniczenie prędkości na odcinku
+    cm_ShuntVelocity, // prędkość manewrowa na semaforze
+    cm_SetProximityVelocity, // informacja wstępna o ograniczeniu
+    cm_ChangeDirection,
+    cm_PassengerStopPoint,
+    cm_OutsideStation,
+//    cm_Shunt, // unused?
+    cm_EmergencyBrake,
+    cm_SecuritySystemMagnet,
+    cm_Command // komenda pobierana z komórki
+};
+
+using material_handle = int;
+using texture_handle = int;
+
+struct invalid_scenery_exception : std::runtime_error {
+	invalid_scenery_exception() : std::runtime_error("cannot load scenery") {}
+};
+
+#endif

utilities/Float3d.cpp

@@ -0,0 +1,49 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "Float3d.h"
+#include "sn_utils.h"
+
+//---------------------------------------------------------------------------
+
+void float4x4::deserialize_float32(std::istream &s)
+{
+	for (size_t i = 0; i < 16; i++)
+		e[i] = sn_utils::ld_float32(s);
+}
+
+void float4x4::deserialize_float64(std::istream &s)
+{
+	for (size_t i = 0; i < 16; i++)
+		e[i] = (float)sn_utils::ld_float64(s);
+}
+
+void float4x4::serialize_float32(std::ostream &s)
+{
+	for (size_t i = 0; i < 16; i++)
+		sn_utils::ls_float32(s, e[i]);
+}
+
+void float4x4::Quaternion(float4 *q)
+{ // konwersja kwaternionu obrotu na macierz obrotu
+    float xx = q->x * q->x, yy = q->y * q->y, zz = q->z * q->z;
+    float xy = q->x * q->y, xz = q->x * q->z, yz = q->y * q->z;
+    float wx = q->w * q->x, wy = q->w * q->y, wz = q->w * q->z;
+    e[0] = 1.0f - yy - yy - zz - zz;
+    e[1] = xy + xy + wz + wz;
+    e[2] = xz + xz - wy - wy;
+    e[4] = xy + xy - wz - wz;
+    e[5] = 1.0f - xx - xx - zz - zz;
+    e[6] = yz + yz + wx + wx;
+    e[8] = xz + xz + wy + wy;
+    e[9] = yz + yz - wx - wx;
+    e[10] = 1.0f - xx - xx - yy - yy;
+    // czwartej kolumny i czwartego wiersza nie ruszamy
+};

utilities/Float3d.h

@@ -0,0 +1,356 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <cmath>
+//---------------------------------------------------------------------------
+
+class float3
+{ // wapółrzędne wierchołka 3D o pojedynczej precyzji
+  public:
+    float x, y, z;
+    float3(void){};
+    float3(float a, float b, float c)
+    {
+        x = a;
+        y = b;
+        z = c;
+    };
+    float Length() const;
+    float LengthSquared() const;
+
+	operator glm::vec3() const
+	{
+		return glm::vec3(x, y, z);
+	}
+};
+
+inline bool operator==(const float3 &v1, const float3 &v2)
+{
+    return (v1.x == v2.x && v1.y == v2.y && v1.z == v2.z);
+};
+inline float3 &operator+=(float3 &v1, const float3 &v2)
+{
+    v1.x += v2.x;
+    v1.y += v2.y;
+    v1.z += v2.z;
+    return v1;
+};
+inline float3 operator-(const float3 &v)
+{
+    return float3(-v.x, -v.y, -v.z);
+};
+inline float3 operator-(const float3 &v1, const float3 &v2)
+{
+    return float3(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
+};
+inline float3 operator+(const float3 &v1, const float3 &v2)
+{
+    return float3(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
+};
+inline float float3::Length() const
+{
+    return std::sqrt(LengthSquared());
+};
+inline float float3::LengthSquared() const {
+    return ( x * x + y * y + z * z );
+}
+inline float3 operator*( float3 const &v, float const  k ) {
+    return float3( v.x * k, v.y * k, v.z * k );
+};
+inline float3 operator/( float3 const &v, float const k )
+{
+    return float3(v.x / k, v.y / k, v.z / k);
+};
+inline float3 SafeNormalize(const float3 &v)
+{ // bezpieczna normalizacja (wektor długości 1.0)
+    auto const l = v.Length();
+    float3 retVal;
+    if (l == 0)
+        retVal.x = retVal.y = retVal.z = 0;
+    else
+        retVal = v / l;
+    return retVal;
+};
+inline float3 CrossProduct( float3 const &v1, float3 const &v2 )
+{
+    return float3(v1.y * v2.z - v1.z * v2.y, v2.x * v1.z - v2.z * v1.x, v1.x * v2.y - v1.y * v2.x);
+}
+inline float DotProduct( float3 const &v1, float3 const &v2 ) {
+
+    return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
+}
+
+inline float3 Interpolate( float3 const &First, float3 const &Second, float const Factor ) {
+
+    return ( First * ( 1.0f - Factor ) ) + ( Second * Factor );
+}
+
+class float4
+{ // kwaternion obrotu
+  public:
+    float x, y, z, w;
+    float4()
+    {
+        x = y = z = 0.f;
+        w = 1.f;
+    };
+    float4(float a, float b, float c, float d)
+    {
+        x = a;
+        y = b;
+        z = c;
+        w = d;
+    };
+    float inline LengthSquared() const
+    {
+        return x * x + y * y + z * z + w * w;
+    };
+    float inline Length() const
+    {
+        return sqrt(x * x + y * y + z * z + w * w);
+    };
+};
+inline float4 operator*(const float4 &q1, const float4 &q2)
+{ // mnożenie to prawie jak mnożenie macierzy
+    return float4(q1.w * q2.x + q1.x * q2.w + q1.y * q2.z - q1.z * q2.y,
+                  q1.w * q2.y + q1.y * q2.w + q1.z * q2.x - q1.x * q2.z,
+                  q1.w * q2.z + q1.z * q2.w + q1.x * q2.y - q1.y * q2.x,
+                  q1.w * q2.w - q1.x * q2.x - q1.y * q2.y - q1.z * q2.z);
+}
+inline float4 operator-(const float4 &q)
+{ // sprzężony; odwrotny tylko dla znormalizowanych!
+    return float4(-q.x, -q.y, -q.z, q.w);
+};
+inline float4 operator-(const float4 &q1, const float4 &q2)
+{ // z odejmowaniem nie ma lekko
+    return (-q1) * q2; // inwersja tylko dla znormalizowanych!
+};
+inline float4 operator+(const float4 &v1, const float4 &v2)
+{
+    return float4(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z, v1.w + v2.w);
+};
+inline float4 operator/(const float4 &v, float const k)
+{
+    return float4(v.x / k, v.y / k, v.z / k, v.w / k);
+};
+inline float4 Normalize(const float4 &v)
+{ // bezpieczna normalizacja (wektor długości 1.0)
+    auto const lengthsquared = v.LengthSquared();
+    if (lengthsquared == 1.0)
+        return v;
+    if (lengthsquared == 0.0)
+        return float4(); // wektor zerowy, w=1
+    else
+        return v / std::sqrt(lengthsquared); // pierwiastek liczony tylko jeśli trzeba wykonać dzielenia
+};
+inline
+float Dot(const float4 &q1, const float4 &q2)
+{ // iloczyn skalarny
+    return q1.x * q2.x + q1.y * q2.y + q1.z * q2.z + q1.w * q2.w;
+}
+inline float4 &operator*=(float4 &v1, float const d)
+{ // mnożenie przez skalar, jaki ma sens?
+    v1.x *= d;
+    v1.y *= d;
+    v1.z *= d;
+    v1.w *= d;
+    return v1;
+};
+inline float4 Slerp(const float4 &q0, const float4 &q1, float t)
+// void Slerp(QUATERNION *Out, const QUATERNION &q0, const QUATERNION &q1, float t)
+{ // interpolacja sweryczna
+    float cosOmega = Dot(q0, q1);
+    float4 new_q1(q1);
+    if (cosOmega < 0.0f)
+    { // jeżeli są niezgodne kierunki, jeden z nich trzeba zanegować
+        new_q1.x = -new_q1.x;
+        new_q1.y = -new_q1.y;
+        new_q1.z = -new_q1.z;
+        new_q1.w = -new_q1.w;
+        cosOmega = -cosOmega;
+    }
+    float k0, k1;
+    if (cosOmega > 0.9999f)
+    { // jeśli jesteśmy z (t) na maksimum kosinusa, to tam prawie liniowo jest
+        k0 = 1.0f - t;
+        k1 = t;
+    }
+    else
+    { // a w ogólnym przypadku trzeba liczyć na trygonometrię
+        auto const sinOmega = std::sqrt(1.0f - cosOmega * cosOmega); // sinus z jedynki tryg.
+        auto const omega = std::atan2(sinOmega, cosOmega); // wyznaczenie kąta
+        auto const oneOverSinOmega = 1.0f / sinOmega; // odwrotność sinusa, bo sinus w mianowniku
+        k0 = sin((1.0f - t) * omega) * oneOverSinOmega;
+        k1 = sin(t * omega) * oneOverSinOmega;
+    }
+    return float4(q0.x * k0 + new_q1.x * k1, q0.y * k0 + new_q1.y * k1, q0.z * k0 + new_q1.z * k1,
+                  q0.w * k0 + new_q1.w * k1);
+}
+
+struct float8
+{ // wierchołek 3D z wektorem normalnym i mapowaniem, pojedyncza precyzja
+  public:
+    float3 Point;
+    float3 Normal;
+    float tu, tv;
+};
+
+class float4x4
+{ // macierz transformacji pojedynczej precyzji
+public:
+    float e[16];
+
+	void deserialize_float32(std::istream&);
+	void deserialize_float64(std::istream&);
+	void serialize_float32(std::ostream&);
+    float4x4(void){};
+    float4x4(const float f[16])
+    {
+        for (int i = 0; i < 16; ++i)
+            e[i] = f[i];
+    };
+    float * operator()(int i)
+    {
+        return &e[i << 2];
+    }
+    const float * readArray(void) const
+    {
+        return e;
+    }
+    void Identity()
+    {
+        for (int i = 0; i < 16; ++i)
+            e[i] = 0;
+        e[0] = e[5] = e[10] = e[15] = 1.0f;
+    }
+    const float *operator[](int i) const
+    {
+        return &e[i << 2];
+    };
+    void InitialRotate()
+    { // taka specjalna rotacja, nie ma co ciągać trygonometrii
+        float f;
+        for (int i = 0; i < 16; i += 4)
+        {
+            e[i] = -e[i]; // zmiana znaku X
+            f = e[i + 1];
+            e[i + 1] = e[i + 2];
+            e[i + 2] = f; // zamiana Y i Z
+        }
+    };
+    inline float4x4 &Rotation(float const angle, float3 const &axis);
+    inline bool IdentityIs()
+    { // sprawdzenie jednostkowości
+        for (int i = 0; i < 16; ++i)
+            if (e[i] != ((i % 5) ? 0.0 : 1.0)) // jedynki tylko na 0, 5, 10 i 15
+                return false;
+        return true;
+    }
+    void Quaternion(float4 *q);
+    inline float3 *TranslationGet()
+    {
+        return (float3 *)(e + 12);
+    }
+};
+
+inline float3 operator*(const float4x4 &m, const float3 &v)
+{ // mnożenie wektora przez macierz
+    return float3(v.x * m[0][0] + v.y * m[1][0] + v.z * m[2][0] + m[3][0],
+                  v.x * m[0][1] + v.y * m[1][1] + v.z * m[2][1] + m[3][1],
+                  v.x * m[0][2] + v.y * m[1][2] + v.z * m[2][2] + m[3][2]);
+}
+
+inline glm::vec3 operator*( const float4x4 &m, const glm::vec3 &v ) { // mnożenie wektora przez macierz
+    return glm::vec3(
+        v.x * m[ 0 ][ 0 ] + v.y * m[ 1 ][ 0 ] + v.z * m[ 2 ][ 0 ] + m[ 3 ][ 0 ],
+        v.x * m[ 0 ][ 1 ] + v.y * m[ 1 ][ 1 ] + v.z * m[ 2 ][ 1 ] + m[ 3 ][ 1 ],
+        v.x * m[ 0 ][ 2 ] + v.y * m[ 1 ][ 2 ] + v.z * m[ 2 ][ 2 ] + m[ 3 ][ 2 ] );
+}
+
+inline float4x4 &float4x4::Rotation(float const Angle, float3 const &Axis)
+{
+    auto const c = std::cos(Angle);
+    auto const s = std::sin(Angle);
+    // One minus c (short name for legibility of formulai)
+    auto const omc = (1.f - c);
+    auto const axis = SafeNormalize(Axis);
+    auto const xs = axis.x * s;
+    auto const ys = axis.y * s;
+    auto const zs = axis.z * s;
+    auto const xyomc = axis.x * axis.y * omc;
+    auto const xzomc = axis.x * axis.z * omc;
+    auto const yzomc = axis.y * axis.z * omc;
+    e[0] = axis.x * axis.x * omc + c;
+    e[1] = xyomc + zs;
+    e[2] = xzomc - ys;
+    e[3] = 0;
+    e[4] = xyomc - zs;
+    e[5] = axis.y * axis.y * omc + c;
+    e[6] = yzomc + xs;
+    e[7] = 0;
+    e[8] = xzomc + ys;
+    e[9] = yzomc - xs;
+    e[10] = axis.z * axis.z * omc + c;
+    e[11] = 0;
+    e[12] = 0;
+    e[13] = 0;
+    e[14] = 0;
+    e[15] = 1;
+    return *this;
+};
+
+inline bool operator==(const float4x4& v1, const float4x4& v2)
+{
+	for (size_t i = 0; i < 16; i++)
+	{
+		if (v1.e[i] != v2.e[i])
+			return false;
+	}
+	return true;
+}
+
+inline float4x4 operator*(const float4x4 &m1, const float4x4 &m2)
+{ // iloczyn macierzy
+    float4x4 retVal;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+        {
+            retVal(x)[y] = 0;
+            for (int i = 0; i < 4; ++i)
+                retVal(x)[y] += m1[i][y] * m2[x][i];
+        }
+    return retVal;
+};
+
+// From code in Graphics Gems; p. 766
+inline float Det2x2(float a, float b, float c, float d)
+{ // obliczenie wyznacznika macierzy 2×2
+    return a * d - b * c;
+};
+
+inline float Det3x3(float a1, float a2, float a3, float b1, float b2, float b3, float c1, float c2,
+                    float c3)
+{ // obliczenie wyznacznika macierzy 3×3
+    return +a1 * Det2x2(b2, b3, c2, c3) - b1 * Det2x2(a2, a3, c2, c3) + c1 * Det2x2(a2, a3, b2, b3);
+};
+
+inline
+float Det(const float4x4 &m)
+{ // obliczenie wyznacznika macierzy 4×4
+    float a1 = m[0][0], a2 = m[1][0], a3 = m[2][0], a4 = m[3][0];
+    float b1 = m[0][1], b2 = m[1][1], b3 = m[2][1], b4 = m[3][1];
+    float c1 = m[0][2], c2 = m[1][2], c3 = m[2][2], c4 = m[3][2];
+    float d1 = m[0][3], d2 = m[1][3], d3 = m[2][3], d4 = m[3][3];
+    return +a1 * Det3x3(b2, b3, b4, c2, c3, c4, d2, d3, d4) -
+           b1 * Det3x3(a2, a3, a4, c2, c3, c4, d2, d3, d4) +
+           c1 * Det3x3(a2, a3, a4, b2, b3, b4, d2, d3, d4) -
+           d1 * Det3x3(a2, a3, a4, b2, b3, b4, c2, c3, c4);
+};

utilities/Globals.h

@@ -0,0 +1,375 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include "Classes.h"
+#include "Camera.h"
+#include "dumb3d.h"
+#include "Float3d.h"
+#include "light.h"
+#include "utilities.h"
+#include "motiontelemetry.h"
+#include <map>
+
+#ifdef WITH_UART
+#include "uart.h"
+#endif
+#ifdef WITH_ZMQ
+#include "zmq_input.h"
+#endif
+
+struct global_settings {
+// members
+    // data items
+    // TODO: take these out of the settings
+
+    std::chrono::steady_clock::time_point startTimestamp;
+
+	/// <summary>
+	/// Mapa z watkami w formacie <std::string nazwa, std::thread watek>
+	/// </summary>
+	std::map<std::string, std::thread> threads = {};
+    bool shiftState{ false }; //m7todo: brzydko
+    bool ctrlState{ false };
+    bool altState{ false };
+    std::mt19937 random_engine;
+    std::mt19937 local_random_engine;
+    bool ready_to_load{ false };
+    std::time_t starting_timestamp = 0; // starting time, in local timezone
+    uint32_t random_seed = 0;
+    TCamera pCamera; // parametry kamery
+    TCamera pDebugCamera;
+    std::array<Math3D::vector3, 10> FreeCameraInit; // pozycje kamery
+    std::array<Math3D::vector3, 10> FreeCameraInitAngle;
+    int iCameraLast{ -1 };
+    int iSlowMotion{ 0 }; // info o malym FPS: 0-OK, 1-wyłączyć multisampling, 3-promień 1.5km, 7-1km
+    basic_light DayLight;
+    float SunAngle{ 0.f }; // angle of the sun relative to horizon
+	int trainThreads{0};
+    double fLuminance{ 1.0 }; // jasność światła do automatycznego zapalania
+    double fTimeAngleDeg{ 0.0 }; // godzina w postaci kąta
+    float fClockAngleDeg[ 6 ]; // kąty obrotu cylindrów dla zegara cyfrowego
+    std::string LastGLError;
+    float ZoomFactor{ 1.f }; // determines current camera zoom level. TODO: move it to the renderer
+    bool CabWindowOpen{ false }; // controls sound attenuation between cab and outside
+    bool ControlPicking{ true }; // indicates controls pick mode is active
+    bool DLFont{ false }; // switch indicating presence of basic font
+    bool bActive{ true }; // czy jest aktywnym oknem
+    int iPause{ 0 }; // globalna pauza ruchu: b0=start,b1=klawisz,b2=tło,b3=lagi,b4=wczytywanie
+    float AirTemperature{ 15.f };
+    std::string asCurrentSceneryPath{ "scenery/" };
+    std::string asCurrentTexturePath{ szTexturePath };
+    std::string asCurrentDynamicPath;
+    int CurrentMaxTextureSize{ 4096 };
+    bool UpdateMaterials{ true };
+    // settings
+    // filesystem
+    bool bLoadTraction{ true };
+    bool bSmoothTraction{ true };
+    bool CreateSwitchTrackbeds{ true };
+    std::string szTexturesTGA{ ".tga" }; // lista tekstur od TGA
+    std::string szTexturesDDS{ ".dds" }; // lista tekstur od DDS
+    std::string szDefaultExt{ szTexturesDDS };
+	std::string SceneryFile;
+    std::string local_start_vehicle{ "EU07-424" };
+    int iConvertModels{ 0 }; // tworzenie plików binarnych
+    int iConvertIndexRange{ 1000 }; // range of duplicate vertex scan
+    bool file_binary_terrain{ true }; // enable binary terrain (de)serialization
+	bool file_binary_terrain_state{true};
+    // logs
+	bool priorityLoadText3D{false}; // ladowanie T3D priorytetowo
+    int iWriteLogEnabled{ 3 }; // maska bitowa: 1-zapis do pliku, 2-okienko, 4-nazwy torów
+    bool MultipleLogs{ false };
+    unsigned int DisabledLogTypes{ 0 };
+    bool ParserLogIncludes{ true };
+    // simulation
+    bool RealisticControlMode{ false }; // controls ability to steer the vehicle from outside views
+    bool bEnableTraction{ true };
+    float fFriction{ 1.f }; // mnożnik tarcia - KURS90
+    float FrictionWeatherFactor{ 1.f };
+    bool bLiveTraction{ true };
+    float Overcast{ 0.1f }; // NOTE: all this weather stuff should be moved elsewhere
+    glm::vec3 FogColor = { 0.6f, 0.7f, 0.8f };
+    float fFogEnd{ 7500 };
+    float fTurbidity{ 128 };
+    std::string Season{}; // season of the year, based on simulation date
+    std::string Weather{ "cloudy:" }; // current weather
+    std::string Period{}; // time of the day, based on sun position
+    bool FullPhysics{ true }; // full calculations performed for each simulation step
+    bool bnewAirCouplers{ true };
+    float fMoveLight{ 0.f }; // numer dnia w roku albo -1
+    bool FakeLight{ false }; // toggle between fixed and dynamic daylight
+    double fTimeSpeed{ 1.0 }; // przyspieszenie czasu, zmienna do testów
+	double default_timespeed { 1.0 }; // timescale loaded from config
+    double fLatitudeDeg{ 52.0 }; // szerokość geograficzna
+    float ScenarioTimeOverride{ std::numeric_limits<float>::quiet_NaN() }; // requested scenario start time
+    float ScenarioTimeOffset{ 0.f }; // time shift (in hours) applied to train timetables
+    bool ScenarioTimeCurrent{ false }; // automatic time shift to match scenario time with local clock
+    bool bInactivePause{ true }; // automatyczna pauza, gdy okno nieaktywne
+    int iSlowMotionMask{ -1 }; // maska wyłączanych właściwości
+    bool bHideConsole{ false }; // hunter-271211: ukrywanie konsoli
+    bool bRollFix{ true }; // czy wykonać przeliczanie przechyłki
+    bool bJoinEvents{ false }; // czy grupować eventy o tych samych nazwach
+    int iHiddenEvents{ 1 }; // czy łączyć eventy z torami poprzez nazwę toru
+    bool AITrainman{ true }; // virtual assistant performing consist coupling/decoupling and other maintenance tasks
+    // ui
+    int PythonScreenUpdateRate{ 200 }; // delay between python-based screen updates, in milliseconds
+    int iTextMode{ 0 }; // tryb pracy wyświetlacza tekstowego
+    glm::vec4 UITextColor{ glm::vec4( 225.f / 255.f, 225.f / 255.f, 225.f / 255.f, 1.f ) }; // base color of UI text
+    float UIBgOpacity{ 0.65f }; // opacity of ui windows
+    std::string asLang{ "pl" }; // domyślny język - http://tools.ietf.org/html/bcp47
+    // gfx
+    glm::ivec2 window_size; // main window size in platform-specific virtual pixels
+    glm::ivec2 cursor_pos; // cursor position in platform-specific virtual pixels
+    glm::ivec2 fb_size; // main window framebuffer size
+	float ShakingMultiplierBF {1.f}; // mnożnik bujania kamera przod/tyl
+	float ShakingMultiplierRL {1.f}; // mnożnik bujania kamera lewo/prawo
+	float ShakingMultiplierUD {1.f}; // mnożnik bujania kamera gora/dol
+    float fDistanceFactor{ 1.f }; // baza do przeliczania odległości dla LoD
+    float targetfps{ 0.0f };
+    bool bFullScreen{ false };
+    bool VSync{ false };
+    bool bWireFrame{ false };
+    bool bAdjustScreenFreq{ true };
+    float BaseDrawRange{ 2500.f };
+    int DynamicLightCount{ 7 };
+    bool ScaleSpecularValues{ true };
+    std::string GfxRenderer{ "default" };
+    bool LegacyRenderer{ false };
+    bool NvRenderer{ false };
+    bool BasicRenderer{ false };
+    bool RenderShadows{ true };
+	bool applicationQuitOrder{false};
+    int RenderCabShadowsRange{ 0 };
+    struct shadowtune_t {
+        unsigned int map_size{ 2048 };
+        float range{ 250.f };
+    } shadowtune;
+    struct reflectiontune_t {
+        double update_interval{ 300.0 };
+        int fidelity{ 0 }; // 0: sections, 1: +static models, 2: +vehicles
+        float range_instances{ 750.f };
+        float range_vehicles{ 250.f };
+    } reflectiontune;
+    bool bUseVBO{ true }; // czy jest VBO w karcie graficznej (czy użyć)
+    float AnisotropicFiltering{ 8.f }; // requested level of anisotropic filtering. TODO: move it to renderer object
+    float FieldOfView{ 45.f }; // vertical field of view for the camera. TODO: move it to the renderer
+    GLint iMaxTextureSize{ 4096 }; // maksymalny rozmiar tekstury
+    GLint iMaxCabTextureSize{ 4096 }; // largest allowed texture in vehicle cab
+    int iMultisampling{ 2 }; // tryb antyaliasingu: 0=brak,1=2px,2=4px,3=8px,4=16px
+    float SplineFidelity{ 1.f }; // determines segment size during conversion of splines to geometry
+    bool Smoke{ true }; // toggles smoke simulation and visualization
+    float SmokeFidelity{ 1.f }; // determines amount of generated smoke particles
+    bool ResourceSweep{ true }; // gfx resource garbage collection
+    bool ResourceMove{ false }; // gfx resources are moved between cpu and gpu side instead of sending a copy
+    bool compress_tex{ true }; // all textures are compressed on gpu side
+    std::string asSky{ "1" };
+    float fFpsAverage{ 0.f }; // oczekiwana wartosć FPS
+    float fFpsDeviation{ 5.f }; // odchylenie standardowe FPS
+    double fFpsMin{ 30.0 }; // dolna granica FPS, przy której promień scenerii będzie zmniejszany
+    double fFpsMax{ 65.0 }; // górna granica FPS, przy której promień scenerii będzie zwiększany
+    // audio
+    bool bSoundEnabled{ true };
+    float AudioVolume{ 1.f };
+    float DefaultRadioVolume{ 0.75f };
+    float VehicleVolume{ 1.0f };
+    float EnvironmentPositionalVolume{ 1.0f };
+    float EnvironmentAmbientVolume{ 1.0f };
+    int audio_max_sources = 30;
+    std::string AudioRenderer;
+    // input
+    float fMouseXScale{ 1.5f };
+    float fMouseYScale{ 0.2f };
+    int iFeedbackMode{ 1 }; // tryb pracy informacji zwrotnej
+    int iFeedbackPort{ 0 }; // dodatkowy adres dla informacji zwrotnych
+    bool InputGamepad{ true }; // whether gamepad support is enabled
+    bool InputMouse{ true }; // whether control pick mode can be activated
+    double fBrakeStep { 1.0 }; // krok zmiany hamulca innych niż FV4a dla klawiszy [Num3] i [Num9]
+    double brake_speed { 3.0 }; // prędkość przesuwu hamulca dla FV4a
+    // parametry kalibracyjne wejść z pulpitu
+    double fCalibrateIn[ 6 ][ 6 ] = {
+        { 0, 0, 0, 0, 0, 0 },
+        { 0, 0, 0, 0, 0, 0 },
+        { 0, 0, 0, 0, 0, 0 },
+        { 0, 0, 0, 0, 0, 0 },
+        { 0, 0, 0, 0, 0, 0 },
+        { 0, 0, 0, 0, 0, 0 } };
+    // parametry kalibracyjne wyjść dla pulpitu
+    double fCalibrateOut[ 7 ][ 6 ] = {
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 },
+        { 0, 1, 0, 0, 0, 0 } };
+    // wartości maksymalne wyjść dla pulpitu
+    double fCalibrateOutMax[ 7 ] = {
+        0, 0, 0, 0, 0, 0, 0 };
+    int iCalibrateOutDebugInfo{ -1 }; // numer wyjścia kalibrowanego dla którego wyświetlać informacje podczas kalibracji
+    int iPoKeysPWM[ 7 ] = { 0, 1, 2, 3, 4, 5, 6 }; // numery wejść dla PWM
+#ifdef WITH_UART
+    uart_input::conf_t uart_conf;
+    std::map<std::string, bool *> uartfeatures_map = {
+        {"main", &uart_conf.mainenable},
+        {"scnd", &uart_conf.scndenable},
+        {"train", &uart_conf.trainenable},
+        {"local", &uart_conf.localenable},
+        {"radiovolume", &uart_conf.radiovolumeenable},
+        {"radiochannel", &uart_conf.radiochannelenable}
+    };
+#endif
+#ifdef WITH_ZMQ
+    std::string zmq_address;
+#endif
+    // multiplayer
+    int iMultiplayer{ 0 }; // blokada działania niektórych eventów na rzecz kominikacji
+	bool bIsolatedTrainName{ false }; //wysyłanie zajęcia odcinka izolowanego z nazwą pociągu
+    // other
+    std::string AppName{ "MaSzyna" };
+    std::string asVersion; // z opisem
+	motiontelemetry::conf_t motiontelemetry_conf;
+	std::string screenshot_dir;
+	bool loading_log = false;
+	bool dds_upper_origin = false;
+    bool captureonstart = true;
+	bool render_cab = true;
+	bool crash_damage = true;
+	bool gui_defaultwindows = true;
+	bool gui_showtranscripts = true;
+    bool gui_trainingdefault = false;
+
+	std::string extcam_cmd;
+	std::string extcam_rec;
+	glm::ivec2 extcam_res{800, 600};
+
+	std::chrono::duration<float> minframetime {0.0f};
+    std::string fullscreen_monitor;
+    bool fullscreen_windowed{ false };
+
+    bool python_enabled = true;
+	bool python_mipmaps = true;
+	bool python_displaywindows = false;
+	bool python_threadedupload = true;
+	bool python_vsync = true;
+	bool python_sharectx = true;
+	bool python_uploadmain = true;
+	std::chrono::duration<float> python_minframetime {0.01f};
+
+    bool gfx_skiprendering = false;
+    int gfx_framebuffer_width = -1;
+    int gfx_framebuffer_height = -1;
+    bool gfx_shadowmap_enabled = true;
+    bool gfx_envmap_enabled = true;
+    bool gfx_postfx_motionblur_enabled = true;
+    float gfx_postfx_motionblur_shutter = 0.01f;
+    GLenum gfx_postfx_motionblur_format = GL_RG16F;
+    GLenum gfx_format_color = GL_RGB16F;
+    GLenum gfx_format_depth = GL_DEPTH_COMPONENT32F;
+    bool gfx_postfx_chromaticaberration_enabled = true;
+    bool gfx_skippipeline = false;
+    bool gfx_extraeffects = true;
+    bool gfx_shadergamma = false;
+    bool gfx_usegles = false;
+    std::string gfx_angleplatform;
+    bool gfx_gldebug = false;
+    bool vr = false;
+    std::string vr_backend;
+
+    float gfx_distance_factor_max { 3.f };
+    float gfx_shadow_angle_min { -0.2f };
+    int gfx_shadow_rank_cutoff { 3 };
+
+    float ui_fontsize = 13.0f;
+    float ui_scale = 1.0f;
+
+	float map_highlight_distance = 3000.0f;
+
+	std::string exec_on_exit;
+    std::string prepend_scn;
+
+	struct extraviewport_config {
+		std::string monitor;
+
+		int width, height;
+		float draw_range;
+
+        viewport_proj_config projection;
+	};
+	std::vector<extraviewport_config> extra_viewports;
+
+	struct pythonviewport_config {
+		std::string surface;
+
+		std::string monitor;
+		glm::ivec2 size;
+
+		glm::vec2 offset;
+		glm::vec2 scale;
+	};
+	std::vector<pythonviewport_config> python_viewports;
+
+    struct headtrack_config {
+        std::string joy;
+
+        bool magic_window = false;
+
+        glm::ivec3 move_axes;
+        glm::vec3 move_mul;
+
+        glm::ivec3 rot_axes;
+        glm::vec3 rot_mul;
+    };
+    headtrack_config headtrack_conf;
+
+    glm::vec3 viewport_move;
+    glm::mat3 viewport_rotate;
+
+    bool map_manualswitchcontrol = false;;
+
+	std::vector<std::pair<std::string, std::string>> network_servers;
+	std::optional<std::pair<std::string, std::string>> network_client;
+	float desync = 0.0f;
+
+	std::unordered_map<int, std::string> trainset_overrides;
+
+    float m_skysaturationcorrection{ 1.65f };
+    float m_skyhuecorrection{ 0.5f };
+
+// methods
+    void LoadIniFile( std::string asFileName );
+    void ConfigParse( cParser &parser );
+    bool ConfigParse_gfx( cParser &parser, std::string_view const Token );
+    // sends basic content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
+    template <typename Type_>
+    void
+        export_as_text( std::ostream &Output, std::string const Key, Type_ const &Value ) const;
+};
+
+template <typename Type_>
+void
+global_settings::export_as_text( std::ostream &Output, std::string const Key, Type_ const &Value ) const {
+
+    Output << Key << " " << Value << "\n";
+}
+
+template <>
+void
+global_settings::export_as_text( std::ostream &Output, std::string const Key, std::string const &Value ) const;
+
+template <>
+void
+global_settings::export_as_text( std::ostream &Output, std::string const Key, bool const &Value ) const;
+
+extern global_settings& GetGlobalSettings();
+
+#define Global (GetGlobalSettings())

utilities/Logs.cpp

@@ -0,0 +1,261 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "Logs.h"
+
+#include "Globals.h"
+#include "winheaders.h"
+#include "utilities.h"
+#include "uilayer.h"
+#include <deque>
+
+std::ofstream output; // standardowy "log.txt", można go wyłączyć
+std::ofstream errors; // lista błędów "errors.txt", zawsze działa
+std::ofstream comms; // lista komunikatow "comms.txt", można go wyłączyć
+char logbuffer[ 256 ];
+
+char endstring[10] = "\n";
+
+std::deque<std::string> log_scrollback;
+
+std::string filename_date() {
+    ::SYSTEMTIME st;
+
+#ifdef __unix__
+    timespec ts;
+    clock_gettime(CLOCK_REALTIME, &ts);
+    tm *tms = localtime(&ts.tv_sec);
+    st.wYear = tms->tm_year;
+    st.wMonth = tms->tm_mon;
+    st.wDayOfWeek = tms->tm_wday;
+    st.wDay = tms->tm_mday;
+    st.wHour = tms->tm_hour;
+    st.wMinute = tms->tm_min;
+    st.wSecond = tms->tm_sec;
+    st.wMilliseconds = ts.tv_nsec / 1000000;
+#elif _WIN32
+    ::GetLocalTime( &st );
+#endif
+
+    std::snprintf(
+        logbuffer,
+        sizeof(logbuffer),
+	    "%d%02d%02d_%02d%02d%03d",
+        st.wYear,
+        st.wMonth,
+        st.wDay,
+        st.wHour,
+	    st.wMinute,
+	    st.wMilliseconds);
+
+    return std::string( logbuffer );
+}
+
+std::string filename_scenery() {
+
+    auto extension = Global.SceneryFile.rfind( '.' );
+    if( extension != std::string::npos ) {
+        return Global.SceneryFile.substr( 0, extension );
+    }
+    else {
+        return Global.SceneryFile;
+    }
+}
+
+// log service stacks
+std::deque < std::pair<std::string, bool>> InfoStack;
+std::deque<std::string> ErrorStack;
+
+// lock for log stacks
+std::mutex logMutex;
+
+
+void LogService()
+{
+	// prevent crash if mutex is not initialized
+	while (true)
+	{
+		try
+		{
+			logMutex.lock();
+			break;
+		}
+		catch (...) {}
+	}
+	logMutex.unlock();
+
+	while (!Global.applicationQuitOrder)
+	{
+		{
+			// --- Obsługa InfoStack ---
+			while (!InfoStack.empty())
+			{
+				logMutex.lock();
+				std::string msg = InfoStack.front().first;
+				bool isError = InfoStack.front().second;
+				InfoStack.pop_front();
+				logMutex.unlock();
+
+				// log to file
+				if (Global.iWriteLogEnabled & 1)
+				{
+					if (!output.is_open())
+					{
+						std::string filename = (Global.MultipleLogs ? "logs/log (" + filename_scenery() + ") " + filename_date() + ".txt" : "log.txt");
+						output.open(filename, std::ios::trunc);
+					}
+					output << msg << "\n";
+					output.flush();
+				}
+
+				// log to scrollback imgui
+				log_scrollback.emplace_back(msg);
+				if (log_scrollback.size() > 200)
+					log_scrollback.pop_front();
+
+				// log to console
+				if (Global.iWriteLogEnabled & 2)
+				{
+					if (isError)
+						printf("\033[1;37;41m%s\033[0m\n", msg.c_str());
+					else
+						printf("\033[32m%s\033[0m\n", msg.c_str());
+				}
+			}
+
+			// --- Obsługa ErrorStack ---
+			while (!ErrorStack.empty())
+			{
+				logMutex.lock();
+				std::string msg = ErrorStack.front();
+				ErrorStack.pop_front();
+				logMutex.unlock();
+
+				if (!(Global.iWriteLogEnabled & 1))
+					continue;
+
+				if (!errors.is_open())
+				{
+					std::string filename = (Global.MultipleLogs ? "logs/errors (" + filename_scenery() + ") " + filename_date() + ".txt" : "errors.txt");
+					errors.open(filename, std::ios::trunc);
+					errors << "EU07.EXE " + Global.asVersion << "\n";
+				}
+
+				errors << msg << "\n";
+				errors.flush();
+			}
+		}
+
+		std::this_thread::sleep_for(std::chrono::milliseconds(50));
+	}
+}
+
+
+void WriteLog(const char *str, logtype const Type, bool isError)
+{
+	if (!str || *str == '\0')
+		return;
+	if (TestFlag(Global.DisabledLogTypes, static_cast<unsigned int>(Type)))
+		return;
+
+	// time calculation
+	auto now = std::chrono::steady_clock::now();
+	auto elapsed = now - Global.startTimestamp;
+	double seconds = std::chrono::duration_cast<std::chrono::duration<double>>(elapsed).count();
+	
+	// time format
+	std::ostringstream oss;
+	oss << "[ " << std::fixed << std::setprecision(3) << seconds << " ] ";
+
+	// wyrownanie do np. 10 znaków długości + dwie tabulacje
+	std::ostringstream final;
+	final << std::setw(10) << oss.str() << "\t\t" << str;
+
+
+	logMutex.lock();
+	InfoStack.emplace_back(final.str(), isError);
+	logMutex.unlock();
+}
+
+void ErrorLog(const char *str, logtype const Type)
+{
+	if (!str || *str == '\0')
+		return;
+	if (TestFlag(Global.DisabledLogTypes, static_cast<unsigned int>(Type)))
+		return;
+
+		// time calculation
+	auto now = std::chrono::steady_clock::now();
+	auto elapsed = now - Global.startTimestamp;
+	double seconds = std::chrono::duration_cast<std::chrono::duration<double>>(elapsed).count();
+
+	// time format
+	std::ostringstream oss;
+	oss << "[ " << std::fixed << std::setprecision(3) << seconds << " ] ";
+
+	// wyrownanie do np. 10 znaków długości + dwie tabulacje
+	std::ostringstream final;
+	final << std::setw(10) << oss.str() << "\t\t" << str;
+
+	logMutex.lock();
+	ErrorStack.emplace_back(final.str());
+	logMutex.unlock();
+}
+
+
+void Error(const std::string &asMessage, bool box)
+{
+    // if (box)
+    //	MessageBox(NULL, asMessage.c_str(), string("EU07 " + Global.asRelease).c_str(), MB_OK);
+    ErrorLog(asMessage.c_str());
+}
+
+void Error(const char *&asMessage, bool box)
+{
+    // if (box)
+    //	MessageBox(NULL, asMessage, string("EU07 " + Global.asRelease).c_str(), MB_OK);
+    ErrorLog(asMessage);
+    WriteLog(asMessage);
+}
+
+void ErrorLog(const std::string &str, logtype const Type )
+{
+    ErrorLog( str.c_str(), Type );
+    WriteLog( str.c_str(), Type, true );
+}
+
+void WriteLog(const std::string &str, logtype const Type )
+{ // Ra: wersja z AnsiString jest zamienna z Error()
+    WriteLog( str.c_str(), Type );
+};
+
+void CommLog(const char *str)
+{ // Ra: warunkowa rejestracja komunikatów
+    WriteLog(str);
+    /*    if (Global.iWriteLogEnabled & 4)
+    {
+    if (!comms.is_open())
+    {
+    comms.open("comms.txt", std::ios::trunc);
+    comms << AnsiString("EU07.EXE " + Global.asRelease).c_str() << "\n";
+    }
+    if (str)
+    comms << str;
+    comms << "\n";
+    comms.flush();
+    }*/
+};
+
+void CommLog(const std::string &str)
+{ // Ra: wersja z AnsiString jest zamienna z Error()
+    WriteLog(str);
+};
+
+//---------------------------------------------------------------------------

utilities/Logs.h

@@ -0,0 +1,35 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+enum class logtype : unsigned int {
+
+    generic = ( 1 << 0 ),
+    file = ( 1 << 1 ),
+    model = ( 1 << 2 ),
+    texture = ( 1 << 3 ),
+    lua = ( 1 << 4 ),
+    material = ( 1 << 5 ),
+    shader = ( 1 << 6 ),
+    net = ( 1 << 7 ),
+    sound = ( 1 << 8 ),
+    traction = ( 1 << 9 ),
+    powergrid = ( 1 << 10 ),
+};
+void LogService();
+void WriteLog( const char *str, logtype const Type = logtype::generic, bool isError = false );
+void Error( const std::string &asMessage, bool box = false );
+void Error( const char* &asMessage, bool box = false );
+void ErrorLog( const std::string &str, logtype const Type = logtype::generic );
+void WriteLog( const std::string &str, logtype const Type = logtype::generic );
+void CommLog( const char *str );
+void CommLog( const std::string &str );
+
+extern std::deque<std::string> log_scrollback;

utilities/Names.h

@@ -0,0 +1,108 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <unordered_map>
+#include <string>
+
+template <typename Type_>
+class basic_table {
+
+public:
+// destructor
+    ~basic_table() {
+        for( auto *item : m_items ) {
+			if (item)
+				delete item; } }
+// methods
+    // adds provided item to the collection. returns: true if there's no duplicate with the same name, false otherwise
+    bool
+        insert( Type_ *Item, std::string itemname ) {
+            m_items.emplace_back( Item );
+            if( ( true == itemname.empty() ) || ( itemname == "none" ) ) {
+                return true;
+            }
+            auto const itemhandle { m_items.size() - 1 };
+            // add item name to the map
+            auto mapping = m_itemmap.emplace( itemname, itemhandle );
+            if( true == mapping.second ) {
+                return true;
+            }
+            // item with this name already exists; update mapping to point to the new one, for backward compatibility
+            mapping.first->second = itemhandle;
+            return false; }
+	bool insert (Type_ *Item)
+	{
+		return insert(Item, Item->name());
+	}
+	void purge (std::string const &Name)
+	{
+		auto lookup = m_itemmap.find( Name );
+		if (lookup == m_itemmap.end())
+			return;
+		delete m_items[lookup->second];
+
+		detach(Name);
+	}
+	void detach (std::string const &Name)
+	{
+		auto lookup = m_itemmap.find( Name );
+		if (lookup == m_itemmap.end())
+			return;
+
+		m_items[lookup->second] = nullptr;
+		// TBD, TODO: remove from m_items?
+
+		m_itemmap.erase(lookup);
+	}
+	uint32_t find_id( std::string const &Name) const {
+		auto lookup = m_itemmap.find( Name );
+		return (
+		    lookup != m_itemmap.end() ?
+		        lookup->second :
+		        -1 );
+	}
+	void purge (Type_ *Item)
+	{
+		for (auto it = m_items.begin(); it != m_items.end(); it++) {
+			if (*it == Item) {
+				delete *it;
+				*it = nullptr;
+				return;
+			}
+		}
+	}
+    // locates item with specified name. returns pointer to the item, or nullptr
+    Type_ *
+        find( std::string const &Name ) const {
+            auto lookup = m_itemmap.find( Name );
+            return (
+                lookup != m_itemmap.end() ?
+                    m_items[ lookup->second ] :
+                    nullptr ); }
+
+protected:
+// types
+    using type_sequence = std::deque<Type_ *>;
+    using index_map = std::unordered_map<std::string, std::size_t>;
+// members
+    type_sequence m_items;
+    index_map m_itemmap;
+
+public:
+    // data access
+    type_sequence &
+        sequence() {
+            return m_items; }
+    type_sequence const &
+        sequence() const {
+            return m_items; }
+
+};

utilities/Timer.cpp

@@ -0,0 +1,113 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "Timer.h"
+#include "Globals.h"
+#include "winheaders.h"
+
+namespace Timer {
+
+subsystem_stopwatches subsystem;
+
+double DeltaTime = 0.0, DeltaRenderTime = 0.0;
+double fFPS{ 0.0f };
+double fLastTime{ 0.0f };
+DWORD dwFrames{ 0 };
+double fSimulationTime{ 0.0 };
+double fRenderTime{ 0.0 };
+double fSoundTimer{ 0.0 };
+double fSinceStart{ 0.0 };
+double override_delta = -1.0f;
+
+double GetTime()
+{
+    return fSimulationTime;
+}
+
+double GetRenderTime() {
+    return fRenderTime;
+}
+
+double GetDeltaTime()
+{ // czas symulacji (stoi gdy pauza)
+	if (override_delta != -1.0f)
+		return override_delta;
+    return DeltaTime;
+}
+
+double GetDeltaRenderTime()
+{ // czas renderowania (do poruszania się)
+    return DeltaRenderTime;
+}
+
+void set_delta_override(double t)
+{
+	override_delta = t;
+}
+
+void ResetTimers()
+{
+    UpdateTimers( Global.iPause != 0 );
+	DeltaTime = 0.0;
+    DeltaRenderTime = 0.0;
+}
+
+uint64_t fr, count, oldCount;
+
+void UpdateTimers(bool pause)
+{
+#ifdef _WIN32
+    QueryPerformanceFrequency((LARGE_INTEGER *)&fr);
+    QueryPerformanceCounter((LARGE_INTEGER *)&count);
+#elif __unix__
+	timespec ts;
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	count = (uint64_t)ts.tv_sec * 1000000000 + (uint64_t)ts.tv_nsec;
+	fr = 1000000000;
+#endif
+    DeltaRenderTime = double(count - oldCount) / double(fr);
+    fRenderTime += DeltaRenderTime;
+    if (!pause)
+    {
+        DeltaTime = Global.fTimeSpeed * DeltaRenderTime;
+        fSoundTimer += DeltaTime;
+        if (fSoundTimer > 0.1)
+            fSoundTimer = 0.0;
+
+        if (DeltaTime > 1.0)
+            DeltaTime = 1.0;
+
+		fSimulationTime += GetDeltaTime();
+    }
+    else
+        DeltaTime = 0.0; // wszystko stoi, bo czas nie płynie
+
+    oldCount = count;
+    // Keep track of the time lapse and frame count
+#if __unix__
+	double fTime = (double)(count / 1000000000);
+#elif _WIN32_WINNT >= _WIN32_WINNT_VISTA
+    double fTime = ::GetTickCount64() * 0.001f; // Get current time in seconds
+#elif _WIN32
+    double fTime = ::GetTickCount() * 0.001f; // Get current time in seconds
+#endif
+    ++dwFrames; // licznik ramek
+    // update the frame rate once per second
+    if (fTime - fLastTime > 1.0f)
+    {
+        fFPS = dwFrames / (fTime - fLastTime);
+        fLastTime = fTime;
+        dwFrames = 0L;
+    }
+};
+
+}; // namespace timer
+
+//---------------------------------------------------------------------------

utilities/Timer.h

@@ -0,0 +1,73 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+namespace Timer {
+
+double GetTime();
+double GetRenderTime();
+
+double GetDeltaTime();
+double GetDeltaRenderTime();
+
+void set_delta_override(double v);
+
+void ResetTimers();
+
+void UpdateTimers(bool pause);
+
+class stopwatch {
+
+public:
+// constructors
+    stopwatch() = default;
+// methods
+    void
+        start() {
+            m_start = std::chrono::steady_clock::now(); }
+	std::chrono::duration<float, std::milli>
+        stop() {
+		    m_last = std::chrono::duration_cast<std::chrono::microseconds>( ( std::chrono::steady_clock::now() - m_start ) );
+			m_accumulator = 0.95f * m_accumulator + m_last.count() / 1000.f;
+			return m_last; }
+    float
+        average() const {
+            return m_accumulator / 20.f;}
+	std::chrono::microseconds
+	    last() const {
+		    return m_last; }
+
+private:
+// members
+    std::chrono::time_point<std::chrono::steady_clock> m_start { std::chrono::steady_clock::now() };
+    float m_accumulator { 1000.f / 30.f * 20.f }; // 20 last samples, initial 'neutral' rate of 30 fps
+    std::chrono::microseconds m_last;
+};
+
+struct subsystem_stopwatches {
+    stopwatch gfx_total;
+    stopwatch gfx_color;
+    stopwatch gfx_shadows;
+    stopwatch gfx_reflections;
+    stopwatch gfx_swap;
+    stopwatch gfx_gui;
+    stopwatch gfx_animate;
+    stopwatch sim_total;
+    stopwatch sim_dynamics;
+    stopwatch sim_events;
+    stopwatch sim_ai;
+    stopwatch mainloop_total;
+};
+
+extern subsystem_stopwatches subsystem;
+
+};
+
+//---------------------------------------------------------------------------

utilities/color.h

@@ -0,0 +1,128 @@
+#pragma once
+
+namespace colors {
+
+glm::vec4 const none{ 0.f, 0.f, 0.f, 1.f };
+glm::vec4 const white{ 1.f, 1.f, 1.f, 1.f };
+glm::vec4 const shadow{ 0.25f, 0.30f, 0.35f, 1.f };
+
+glm::vec4 const uitextred{ 164.0f / 255.0f, 84.0f / 255.0f, 84.0f / 255.0f, 1.f };
+glm::vec4 const uitextorange{ 164.0f / 255.0f, 132.0f / 255.0f, 84.0f / 255.0f, 1.f };
+glm::vec4 const uitextgreen{ 84.0f / 255.0f, 164.0f / 255.0f, 132.0f / 255.0f, 1.f };
+
+inline
+glm::vec3
+XYZtoRGB( glm::vec3 const &XYZ ) {
+
+    // M^-1 for Adobe RGB from http://www.brucelindbloom.com/Eqn_RGB_XYZ_Matrix.html
+    float const mi[ 3 ][ 3 ] = { 2.041369f, -0.969266f, 0.0134474f, -0.5649464f, 1.8760108f, -0.1183897f, -0.3446944f, 0.041556f, 1.0154096f };
+    // m^-1 for sRGB:
+//    float const mi[ 3 ][ 3 ] = { 3.240479f, -0.969256f, 0.055648f, -1.53715f, 1.875991f, -0.204043f, -0.49853f, 0.041556f, 1.057311f };
+
+    return glm::vec3{
+        XYZ.x*mi[ 0 ][ 0 ] + XYZ.y*mi[ 1 ][ 0 ] + XYZ.z*mi[ 2 ][ 0 ],
+        XYZ.x*mi[ 0 ][ 1 ] + XYZ.y*mi[ 1 ][ 1 ] + XYZ.z*mi[ 2 ][ 1 ],
+        XYZ.x*mi[ 0 ][ 2 ] + XYZ.y*mi[ 1 ][ 2 ] + XYZ.z*mi[ 2 ][ 2 ] };
+}
+
+inline
+glm::vec3
+RGBtoHSV( glm::vec3 const &RGB ) {
+
+    glm::vec3 hsv;
+
+    float const max = std::max( std::max( RGB.r, RGB.g ), RGB.b );
+    float const min = std::min( std::min( RGB.r, RGB.g ), RGB.b );
+    float const delta = max - min;
+
+    hsv.z = max;                                // v
+    if( delta < 0.00001 ) {
+        hsv.y = 0;
+        hsv.x = 0; // undefined, maybe nan?
+        return hsv;
+    }
+    if( max > 0.0 ) { // NOTE: if Max is == 0, this divide would cause a crash
+        hsv.y = ( delta / max );                  // s
+    }
+    else {
+        // if max is 0, then r = g = b = 0              
+        // s = 0, v is undefined
+        hsv.y = 0.0;
+        hsv.x = NAN;                            // its now undefined
+        return hsv;
+    }
+    if( RGB.r >= max )                           // > is bogus, just keeps compilor happy
+        hsv.x = ( RGB.g - RGB.b ) / delta;        // between yellow & magenta
+    else
+        if( RGB.g >= max )
+            hsv.x = 2.f + ( RGB.g - RGB.r ) / delta;  // between cyan & yellow
+        else
+            hsv.x = 4.f + ( RGB.r - RGB.g ) / delta;  // between magenta & cyan
+
+    hsv.x *= 60.0;                              // degrees
+
+    if( hsv.x < 0.0 )
+        hsv.x += 360.0;
+
+    return hsv;
+}
+
+inline
+glm::vec3
+HSVtoRGB( glm::vec3 const &HSV ) {
+
+    glm::vec3 rgb;
+
+    if( HSV.y <= 0.0 ) {       // < is bogus, just shuts up warnings
+        rgb.r = HSV.z;
+        rgb.g = HSV.z;
+        rgb.b = HSV.z;
+        return rgb;
+    }
+    float hh = HSV.x;
+    if( hh >= 360.0 ) hh = 0.0;
+    hh /= 60.0;
+    int const i = (int)hh;
+    float const ff = hh - i;
+    float const p = HSV.z * ( 1.f - HSV.y );
+    float const q = HSV.z * ( 1.f - ( HSV.y * ff ) );
+    float const t = HSV.z * ( 1.f - ( HSV.y * ( 1.f - ff ) ) );
+
+    switch( i ) {
+        case 0:
+            rgb.r = HSV.z;
+            rgb.g = t;
+            rgb.b = p;
+            break;
+        case 1:
+            rgb.r = q;
+            rgb.g = HSV.z;
+            rgb.b = p;
+            break;
+        case 2:
+            rgb.r = p;
+            rgb.g = HSV.z;
+            rgb.b = t;
+            break;
+
+        case 3:
+            rgb.r = p;
+            rgb.g = q;
+            rgb.b = HSV.z;
+            break;
+        case 4:
+            rgb.r = t;
+            rgb.g = p;
+            rgb.b = HSV.z;
+            break;
+        case 5:
+        default:
+            rgb.r = HSV.z;
+            rgb.g = p;
+            rgb.b = q;
+            break;
+    }
+    return rgb;
+}
+
+} // namespace colors

utilities/comparison.h

@@ -0,0 +1,78 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+enum class comparison_operator {
+    equal, // ==
+    not_equal, // !=
+    lt, // <
+    gt, // >
+    lt_eq, // <=
+    gt_eq // >=
+};
+
+enum class comparison_pass {
+    all, // &&
+    any, // ||
+    none // !
+};
+
+template <typename Type_>
+bool compare( Type_ const Left, Type_ const Right, comparison_operator const Operator ) {
+    switch( Operator ) {
+        case comparison_operator::equal:     { return Left == Right; }
+        case comparison_operator::not_equal: { return Left != Right; }
+        case comparison_operator::lt:     { return Left < Right; }
+        case comparison_operator::gt:     { return Left > Right; }
+        case comparison_operator::lt_eq:  { return Left <= Right; }
+        case comparison_operator::gt_eq:  { return Left >= Right; }
+        default:                          { return false; }
+    }
+}
+
+inline
+std::string
+to_string( comparison_operator const Operator ) {
+    switch( Operator ) {
+        case comparison_operator::equal:     { return "=="; }
+        case comparison_operator::not_equal: { return "!="; }
+        case comparison_operator::lt:     { return "<"; }
+        case comparison_operator::gt:     { return ">"; }
+        case comparison_operator::lt_eq:  { return "<="; }
+        case comparison_operator::gt_eq:  { return ">"; }
+        default:                          { return "??"; }
+    }
+}
+
+inline
+comparison_pass
+comparison_pass_from_string( std::string const Input ) {
+         if( Input == "all" ) { return comparison_pass::all; }
+    else if( Input == "any" ) { return comparison_pass::any; }
+    else if( Input == "none" ) { return comparison_pass::none; }
+
+    return comparison_pass::all; // legacy default
+}
+
+inline
+comparison_operator
+comparison_operator_from_string( std::string const Input ) {
+         if( Input == "==" ) { return comparison_operator::equal; }
+    else if( Input == "!=" ) { return comparison_operator::not_equal; }
+    else if( Input == "<" )  { return comparison_operator::lt; }
+    else if( Input == ">" )  { return comparison_operator::gt; }
+    else if( Input == "<=" ) { return comparison_operator::lt_eq; }
+    else if( Input == ">=" ) { return comparison_operator::gt_eq; }
+
+    return comparison_operator::equal; // legacy default
+}
+
+//---------------------------------------------------------------------------
+

utilities/crashreporter.cpp

@@ -0,0 +1,196 @@
+#include <client/crash_report_database.h>
+#include <client/settings.h>
+#include <client/crashpad_client.h>
+#include <client/annotation.h>
+#include <fstream>
+#include <string>
+#include <filesystem>
+#include <iostream>
+#include "version_info.h"
+
+#if defined __has_attribute
+#  if __has_attribute (init_priority)
+#    define INITPRIO_CLASS __attribute__ ((init_priority (5000)))
+#  endif
+#endif
+
+#ifndef INITPRIO_CLASS
+#   ifdef _MSC_VER
+#pragma init_seg(lib)
+#   endif
+#endif
+
+#ifndef INITPRIO_CLASS
+#   define INITPRIO_CLASS
+#endif
+
+class crash_reporter
+{
+	crashpad::CrashpadClient client;
+    std::unique_ptr<crashpad::CrashReportDatabase> database;
+
+public:
+    std::string provider = "";
+    bool autoupload = false;
+
+	crash_reporter();
+    void set_autoupload();
+    void upload_reject();
+    void upload_accept();
+    bool upload_pending();
+};
+
+crash_reporter::crash_reporter()
+{
+#ifdef _WIN32
+    if (!std::filesystem::exists("crashdumps/crashpad_handler.exe"))
+        return;
+#else
+    if (!std::filesystem::exists("crashdumps/crashpad_handler"))
+        return;
+#endif
+
+    autoupload = std::filesystem::exists("crashdumps/autoupload_enabled.conf");
+
+    std::string url, token, prov;
+
+    std::ifstream conf("crashdumps/crashpad.conf");
+
+    std::string line, param, value;
+    while (std::getline(conf, line)) {
+        std::istringstream linestream(line);
+
+        if (!std::getline(linestream, param, '='))
+            continue;
+        if (!std::getline(linestream, value, '='))
+            continue;
+
+        if (param == "URL")
+            url = value;
+        else if (param == "TOKEN")
+            token = value;
+        else if (param == "PROVIDER")
+            prov = value;
+    }
+
+    if (token.empty())
+        return;
+    if (url.empty())
+        return;
+    if (prov.empty())
+        return;
+
+#ifdef _WIN32
+    base::FilePath db(L"crashdumps");
+    base::FilePath handler(L"crashdumps/crashpad_handler.exe");
+#else
+    base::FilePath db("crashdumps");
+    base::FilePath handler("crashdumps/crashpad_handler");
+#endif
+
+	std::map<std::string, std::string> annotations;
+	annotations["git_hash"] = GIT_HASH;
+	annotations["src_date"] = SRC_DATE;
+    annotations["format"] = "minidump";
+    annotations["token"] = token;
+
+	std::vector<std::string> arguments;
+	arguments.push_back("--no-rate-limit");
+
+    database = crashpad::CrashReportDatabase::Initialize(db);
+
+	if (database == nullptr || database->GetSettings() == NULL)
+        return;
+
+    std::vector<crashpad::CrashReportDatabase::Report> reports;
+    database->GetCompletedReports(&reports);
+    for (auto const &report : reports)
+        if (report.uploaded)
+            database->DeleteReport(report.uuid);
+
+    database->GetSettings()->SetUploadsEnabled(autoupload);
+
+    if (!client.StartHandler(handler, db, db, url, annotations, arguments, true, true))
+        return;
+
+    provider = prov;
+}
+
+void crash_reporter::set_autoupload()
+{
+    autoupload = true;
+    database->GetSettings()->SetUploadsEnabled(true);
+    std::ofstream flag("crashdumps/autoupload_enabled.conf");
+    flag << "y" << std::endl;
+    flag.close();
+}
+
+void crash_reporter::upload_accept()
+{
+    std::vector<crashpad::CrashReportDatabase::Report> reports;
+    database->GetCompletedReports(&reports);
+    for (auto const &report : reports)
+        if (!report.uploaded)
+            database->RequestUpload(report.uuid);
+}
+
+void crash_reporter::upload_reject()
+{
+    std::vector<crashpad::CrashReportDatabase::Report> reports;
+    database->GetCompletedReports(&reports);
+    for (auto const &report : reports)
+        if (!report.uploaded)
+            database->DeleteReport(report.uuid);
+}
+
+bool crash_reporter::upload_pending()
+{
+    if (autoupload)
+        return false;
+
+    std::vector<crashpad::CrashReportDatabase::Report> reports;
+    database->GetCompletedReports(&reports);
+    for (auto const &report : reports)
+        if (!report.uploaded && !report.upload_explicitly_requested)
+            return true;
+
+    return false;
+}
+
+crash_reporter crash_reporter_inst INITPRIO_CLASS;
+
+const std::string& crashreport_get_provider()
+{
+    return crash_reporter_inst.provider;
+}
+
+void crashreport_add_info(const char *name, const std::string &value)
+{
+	char *copy = new char[value.size() + 1];
+	strcpy(copy, value.c_str());
+
+	crashpad::Annotation *annotation = new crashpad::Annotation(crashpad::Annotation::Type::kString, name, copy);
+	annotation->SetSize(value.size() + 1);
+}
+
+void crashreport_set_autoupload()
+{
+    crash_reporter_inst.set_autoupload();
+}
+
+bool crashreport_is_pending()
+{
+    if (crash_reporter_inst.provider.empty())
+        return false;
+    return crash_reporter_inst.upload_pending();
+}
+
+void crashreport_upload_reject()
+{
+    crash_reporter_inst.upload_reject();
+}
+
+void crashreport_upload_accept()
+{
+    crash_reporter_inst.upload_accept();
+}

utilities/crashreporter.h

@@ -0,0 +1,15 @@
+#ifdef WITH_CRASHPAD
+void crashreport_add_info(const char *name, const std::string &value);
+const std::string& crashreport_get_provider();
+void crashreport_set_autoupload();
+bool crashreport_is_pending();
+void crashreport_upload_reject();
+void crashreport_upload_accept();
+#else
+#define crashreport_add_info(a,b)
+#define crashreport_get_provider() (std::string(""))
+#define crashreport_set_autoupload()
+#define crashreport_is_pending() (false)
+#define crashreport_upload_reject()
+#define crashreport_upload_accept()
+#endif

utilities/dictionary.cpp

@@ -0,0 +1,50 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "dictionary.h"
+
+#include "simulation.h"
+#include "utilities.h"
+#include "DynObj.h"
+#include "Driver.h"
+#include "mtable.h"
+
+dictionary_source::dictionary_source( std::string const &Input ) {
+
+    auto const keyvaluepairs { Split( Input, '&' ) };
+
+    for( auto const &keyvaluepair : keyvaluepairs ) {
+
+        auto const valuepos { keyvaluepair.find( '=' ) };
+        if( keyvaluepair[ 0 ] != '$' ) {
+            // regular key, value pairs
+            insert(
+                ToLower( keyvaluepair.substr( 0, valuepos ) ),
+                keyvaluepair.substr( valuepos + 1 ) );
+        }
+        else {
+            // special case, $key indicates request to include certain dataset clarified by value
+            auto const key { ToLower( keyvaluepair.substr( 0, valuepos ) ) };
+            auto const value { keyvaluepair.substr( valuepos + 1 ) };
+
+            if( key == "$timetable" ) {
+                // timetable pulled from (preferably) the owner/direct controller of specified vehicle
+                auto const *vehicle { simulation::Vehicles.find( value ) };
+                auto const *controller { (
+                    vehicle == nullptr ? nullptr :
+                    vehicle->ctOwner == nullptr ? vehicle->Mechanik :
+                    vehicle->ctOwner ) };
+                if( controller != nullptr ) {
+                    controller->TrainTimetable().serialize( this );
+                }
+            }
+        }
+    }
+}

utilities/dictionary.h

@@ -0,0 +1,33 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+// collection of keyword-value pairs
+// NOTE: since our python dictionary operates on a few types, most of the class was hardcoded for simplicity
+struct dictionary_source {
+// types
+    template <typename Type_>
+    using keyvaluepair_sequence = std::vector<std::pair<std::string, Type_>>;
+// members
+    keyvaluepair_sequence<double> floats;
+    keyvaluepair_sequence<int> integers;
+    keyvaluepair_sequence<bool> bools;
+    keyvaluepair_sequence<std::string> strings;
+    keyvaluepair_sequence<std::vector<glm::vec2>> vec2_lists;
+// constructors
+    dictionary_source() = default;
+    dictionary_source( std::string const &Input );
+// methods
+    inline void insert( std::string const &Key, double const Value )      { floats.emplace_back( Key, Value ); }
+    inline void insert( std::string const &Key, int const Value )         { integers.emplace_back( Key, Value ); }
+    inline void insert( std::string const &Key, bool const Value )        { bools.emplace_back( Key, Value ); }
+    inline void insert( std::string const &Key, std::string const Value ) { strings.emplace_back( Key, Value ); }
+    inline void insert( std::string const &Key, std::vector<glm::vec2> const Value ) { vec2_lists.emplace_back( Key, Value ); }
+};

utilities/dumb3d.cpp

@@ -0,0 +1,414 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "dumb3d.h"
+#include <cassert>
+
+namespace Math3D
+{
+
+void vector3::RotateX(double angle)
+{
+    double ty = y;
+    y = (cos(angle) * y - z * sin(angle));
+    z = (z * cos(angle) + sin(angle) * ty);
+};
+void vector3::RotateY(double angle)
+{
+    double tx = x;
+    x = (cos(angle) * x + z * sin(angle));
+    z = (z * cos(angle) - sin(angle) * tx);
+};
+void vector3::RotateZ(double angle)
+{
+    double ty = y;
+    y = (cos(angle) * y + x * sin(angle));
+    x = (x * cos(angle) - sin(angle) * ty);
+};
+
+void inline vector3::SafeNormalize()
+{
+    double l = Length();
+    if (l == 0)
+    {
+        x = y = z = 0;
+    }
+    else
+    {
+        x /= l;
+        y /= l;
+        z /= l;
+    }
+}
+
+// From code in Graphics Gems; p. 766
+inline scalar_t det2x2(scalar_t a, scalar_t b, scalar_t c, scalar_t d)
+{
+    return a * d - b * c;
+}
+
+inline scalar_t det3x3(scalar_t a1, scalar_t a2, scalar_t a3, scalar_t b1, scalar_t b2, scalar_t b3,
+                       scalar_t c1, scalar_t c2, scalar_t c3)
+{
+    return a1 * det2x2(b2, b3, c2, c3) - b1 * det2x2(a2, a3, c2, c3) + c1 * det2x2(a2, a3, b2, b3);
+}
+
+scalar_t Determinant(const matrix4x4 &m)
+{
+    scalar_t a1 = m[0][0];
+    scalar_t a2 = m[1][0];
+    scalar_t a3 = m[2][0];
+    scalar_t a4 = m[3][0];
+    scalar_t b1 = m[0][1];
+    scalar_t b2 = m[1][1];
+    scalar_t b3 = m[2][1];
+    scalar_t b4 = m[3][1];
+    scalar_t c1 = m[0][2];
+    scalar_t c2 = m[1][2];
+    scalar_t c3 = m[2][2];
+    scalar_t c4 = m[3][2];
+    scalar_t d1 = m[0][3];
+    scalar_t d2 = m[1][3];
+    scalar_t d3 = m[2][3];
+    scalar_t d4 = m[3][3];
+
+    return a1 * det3x3(b2, b3, b4, c2, c3, c4, d2, d3, d4) -
+           b1 * det3x3(a2, a3, a4, c2, c3, c4, d2, d3, d4) +
+           c1 * det3x3(a2, a3, a4, b2, b3, b4, d2, d3, d4) -
+           d1 * det3x3(a2, a3, a4, b2, b3, b4, c2, c3, c4);
+}
+
+matrix4x4 Adjoint(const matrix4x4 &m)
+{
+    scalar_t a1 = m[0][0];
+    scalar_t a2 = m[0][1];
+    scalar_t a3 = m[0][2];
+    scalar_t a4 = m[0][3];
+    scalar_t b1 = m[1][0];
+    scalar_t b2 = m[1][1];
+    scalar_t b3 = m[1][2];
+    scalar_t b4 = m[1][3];
+    scalar_t c1 = m[2][0];
+    scalar_t c2 = m[2][1];
+    scalar_t c3 = m[2][2];
+    scalar_t c4 = m[2][3];
+    scalar_t d1 = m[3][0];
+    scalar_t d2 = m[3][1];
+    scalar_t d3 = m[3][2];
+    scalar_t d4 = m[3][3];
+
+    // Adjoint(x,y) = -1^(x+y) * a(y,x)
+    // Where a(i,j) is the 3x3 determinant of m with row i and col j removed
+    matrix4x4 retVal;
+    retVal(0)[0] = det3x3(b2, b3, b4, c2, c3, c4, d2, d3, d4);
+    retVal(0)[1] = -det3x3(a2, a3, a4, c2, c3, c4, d2, d3, d4);
+    retVal(0)[2] = det3x3(a2, a3, a4, b2, b3, b4, d2, d3, d4);
+    retVal(0)[3] = -det3x3(a2, a3, a4, b2, b3, b4, c2, c3, c4);
+
+    retVal(1)[0] = -det3x3(b1, b3, b4, c1, c3, c4, d1, d3, d4);
+    retVal(1)[1] = det3x3(a1, a3, a4, c1, c3, c4, d1, d3, d4);
+    retVal(1)[2] = -det3x3(a1, a3, a4, b1, b3, b4, d1, d3, d4);
+    retVal(1)[3] = det3x3(a1, a3, a4, b1, b3, b4, c1, c3, c4);
+
+    retVal(2)[0] = det3x3(b1, b2, b4, c1, c2, c4, d1, d2, d4);
+    retVal(2)[1] = -det3x3(a1, a2, a4, c1, c2, c4, d1, d2, d4);
+    retVal(2)[2] = det3x3(a1, a2, a4, b1, b2, b4, d1, d2, d4);
+    retVal(2)[3] = -det3x3(a1, a2, a4, b1, b2, b4, c1, c2, c4);
+
+    retVal(3)[0] = -det3x3(b1, b2, b3, c1, c2, c3, d1, d2, d3);
+    retVal(3)[1] = det3x3(a1, a2, a3, c1, c2, c3, d1, d2, d3);
+    retVal(3)[2] = -det3x3(a1, a2, a3, b1, b2, b3, d1, d2, d3);
+    retVal(3)[3] = det3x3(a1, a2, a3, b1, b2, b3, c1, c2, c3);
+
+    return retVal;
+}
+
+matrix4x4 Inverse(const matrix4x4 &m)
+{
+    matrix4x4 retVal = Adjoint(m);
+    scalar_t det = Determinant(m);
+    assert(det);
+
+    for (int i = 0; i < 4; ++i)
+    {
+        for (int j = 0; j < 4; ++j)
+        {
+            retVal(i)[j] /= det;
+        }
+    }
+
+    return retVal;
+}
+}
+
+//**************************************
+// Testing from here on.
+//**************************************
+#ifdef TEST_MATH3D
+#include <iostream>
+
+using namespace Math3D;
+using namespace std;
+
+static int failures = 0;
+
+void ReportFailure(const char *className, const char *testName, bool passed)
+{
+    cout << className;
+    if (passed)
+        cout << " passed test ";
+    else
+    {
+        cout << " FAILED test ";
+        ++failures;
+    }
+    cout << testName << "." << endl;
+}
+
+const char *vector3Name = "vector3";
+const char *matrix4x4Name = "matrix4x4";
+
+void Testvector3Constructors(void)
+{
+    // Default ctor... just make sure it compiles
+    vector3 defaultCtorTest;
+
+    // Initializer ctor test (3 param)
+    vector3 initCtorTest(1, 2, 3);
+    ReportFailure(vector3Name, "initialized ctor (3 parameter version)",
+                  (initCtorTest[0] == 1 && initCtorTest[1] == 2 && initCtorTest[2] == 3 &&
+                   initCtorTest[3] == 1));
+
+    // Initializer ctor test (4 param)
+    vector3 initCtorTest2(1, 2, 3, 4);
+    ReportFailure(vector3Name, "initialized ctor (4 parameter version)",
+                  (initCtorTest2[0] == 1 && initCtorTest2[1] == 2 && initCtorTest2[2] == 3 &&
+                   initCtorTest2[3] == 4));
+
+    scalar_t initArray[] = {1, 2, 3, 4};
+    vector3 initCtorArrayTest3(initArray);
+    ReportFailure(vector3Name, "array initialized ctor (3 parameter version)",
+                  (initCtorArrayTest3[0] == 1 && initCtorArrayTest3[1] == 2 &&
+                   initCtorArrayTest3[2] == 3 && initCtorArrayTest3[3] == 1));
+
+    vector3 initCtorArrayTest4(initArray, 4);
+    ReportFailure(vector3Name, "array initialized ctor (4 parameter version)",
+                  (initCtorArrayTest4[0] == 1 && initCtorArrayTest4[1] == 2 &&
+                   initCtorArrayTest4[2] == 3 && initCtorArrayTest4[3] == 4));
+
+    // Copy ctor test
+    vector3 copyCtorTest(initCtorTest2);
+    ReportFailure(vector3Name, "copy ctor", (copyCtorTest[0] == 1 && copyCtorTest[1] == 2 &&
+                                             copyCtorTest[2] == 3 && copyCtorTest[3] == 4));
+}
+
+void Testvector3Comparison(void)
+{
+    vector3 alpha(1, 1, 1);
+    vector3 beta(alpha);
+    vector3 gamma(2, 3, 4);
+
+    ReportFailure(vector3Name, "equivalence operator test 1", (alpha == beta));
+    ReportFailure(vector3Name, "equivalence operator test 2", (!(alpha == gamma)));
+    ReportFailure(vector3Name, "comparison operator test 1", !(alpha < beta));
+    ReportFailure(vector3Name, "comparison operator test 2", (alpha < gamma));
+    ReportFailure(vector3Name, "comparison operator test 3", !(gamma < beta));
+}
+
+void Testvector3Assignment(void)
+{
+    vector3 alpha(1, 1, 1, 1);
+    vector3 beta(10, 10, 10, 10);
+    alpha = beta;
+    ReportFailure(vector3Name, "assignment operator", (alpha == beta));
+}
+
+void Testvector3UnaryOps(void)
+{
+    vector3 alpha(10, 10, 10, 10);
+    vector3 beta(-10, -10, -10, -10);
+    alpha = -alpha;
+    ReportFailure(vector3Name, "negation operator", (alpha == beta));
+
+    ReportFailure(vector3Name, "length squared 3 element version", LengthSquared3(alpha) == 300);
+    ReportFailure(vector3Name, "length 3 element version", Length3(alpha) == SQRT_FUNCTION(300));
+    ReportFailure(vector3Name, "length squared 4 element version", LengthSquared4(alpha) == 400);
+    ReportFailure(vector3Name, "length 4 element version", Length4(alpha) == SQRT_FUNCTION(400));
+
+    // Manually normalize beta
+    // Done without /= on vector3, as we want to be independant of failure of /=
+    // Earlier failures should be resolved before later ones (just like C++)
+    beta = alpha;
+    for (int i = 0; i < 3; ++i)
+        beta(i) /= SQRT_FUNCTION(300);
+    beta(3) = 1;
+    ReportFailure(vector3Name, "normalize 3 element version", Normalize3(alpha) == beta);
+
+    beta = alpha;
+    for (int i = 0; i < 4; ++i)
+        beta(i) /= SQRT_FUNCTION(400);
+    ReportFailure(vector3Name, "normalize 4 element version", Normalize4(alpha) == beta);
+}
+
+void Testvector3BinaryOps(void)
+{
+    // Vector * Matrix is tested in Testmatrix4x4BinaryOps
+    vector3 testVec(1, 1, 1, 1);
+    vector3 deltaVec(1, 2, 3, 4);
+    vector3 crossVec(1, -2, 1, 1); // testVec x deltaVec
+
+    vector3 factorVec(10, 10, 10, 10);
+    vector3 sumVec(2, 3, 4, 5);
+    vector3 difVec(0, -1, -2, -3);
+    vector3 testVec2;
+
+    ReportFailure(vector3Name, "scalar multiply 1", (testVec * 10) == factorVec);
+    ReportFailure(vector3Name, "scalar multiply 2", (10 * testVec) == factorVec);
+    testVec2 = testVec;
+    ReportFailure(vector3Name, "scalar multiply and store", (testVec2 *= 10) == factorVec);
+
+    ReportFailure(vector3Name, "scalar divide", (factorVec / 10) == testVec);
+    testVec2 = factorVec;
+    ReportFailure(vector3Name, "scalar divide and store", (testVec2 /= 10) == testVec);
+
+    ReportFailure(vector3Name, "vector addition", (testVec + deltaVec) == sumVec);
+    testVec2 = testVec;
+    ReportFailure(vector3Name, "vector addition and store", (testVec2 += deltaVec) == sumVec);
+
+    ReportFailure(vector3Name, "vector subtraction", (testVec - deltaVec) == difVec);
+    testVec2 = testVec;
+    ReportFailure(vector3Name, "vector subtraction and store", (testVec2 -= deltaVec) == difVec);
+
+    ReportFailure(vector3Name, "3 element dot product", 6 == DotProduct3(testVec, deltaVec));
+    ReportFailure(vector3Name, "4 element dot product", 10 == DotProduct4(testVec, deltaVec));
+
+    ReportFailure(vector3Name, "cross product", crossVec == CrossProduct(testVec, deltaVec));
+}
+
+void Testvector3(void)
+{
+    // Accessors cannot be tested effectively...
+    // They are really trivial, and so don't really need testing,
+    // but more importantly, how do you test the ctors without assuming
+    // the accessors work?  Conversely, how do you test the acccessors
+    // without assuming the ctors work?  Chicken and egg problem, and I
+    // decided on testing the ctors, not the accessors.
+    Testvector3Constructors();
+    Testvector3Comparison();
+    Testvector3Assignment();
+    Testvector3UnaryOps();
+    Testvector3BinaryOps();
+}
+
+void Testmatrix4x4Constructors(void)
+{
+    // Check if default ctor compiles
+    matrix4x4 defaultTest;
+
+    scalar_t initArray[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
+    matrix4x4 arrayTest;
+    arrayTest.C_Matrix(initArray);
+    bool passedTest = true;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+            if (arrayTest[x][y] != initArray[(y << 2) + x])
+                passedTest = false;
+    ReportFailure(matrix4x4Name, "array constructor", passedTest);
+
+    matrix4x4 copyTest(arrayTest);
+    passedTest = true;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+            if (arrayTest[x][y] != copyTest[x][y])
+                passedTest = false;
+    ReportFailure(matrix4x4Name, "copy constructor", passedTest);
+}
+
+void Testmatrix4x4Comparison(void)
+{
+    scalar_t initArray[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
+    scalar_t initArray2[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+    matrix4x4 alpha, beta, gamma;
+    alpha.C_Matrix(initArray);
+    beta.C_Matrix(initArray);
+    gamma.C_Matrix(initArray2);
+
+    ReportFailure(matrix4x4Name, "equality test 1", alpha == beta);
+    ReportFailure(matrix4x4Name, "equality test 2", !(alpha == gamma));
+    ReportFailure(matrix4x4Name, "comparison test 1", alpha < gamma);
+    ReportFailure(matrix4x4Name, "comparison test 2", !(gamma < alpha));
+    ReportFailure(matrix4x4Name, "comparison test 3", !(alpha < beta));
+}
+
+void Testmatrix4x4BinaryOps(void)
+{
+    scalar_t initVector[] = {0, 1, 2, 3};
+    scalar_t initMatrix[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
+    scalar_t resultVector[] = {0 * 0 + 1 * 1 + 2 * 2 + 3 * 3, 0 * 4 + 1 * 5 + 2 * 6 + 3 * 7,
+                               0 * 8 + 1 * 9 + 2 * 10 + 3 * 11, 0 * 12 + 1 * 13 + 2 * 14 + 3 * 15};
+
+    vector3 vector1(initVector, 4);
+    matrix4x4 matrix1;
+    matrix1.C_Matrix(initMatrix);
+    vector3 vectorTest(resultVector, 4);
+    ReportFailure(matrix4x4Name, "matrix * vector", vectorTest == matrix1 * vector1);
+
+    scalar_t initMatrix2[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
+
+    matrix4x4 matrix2;
+    matrix2.C_Matrix(initMatrix2);
+    matrix4x4 resultMatrix;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+        {
+            resultMatrix(x)[y] = 0;
+            for (int i = 0; i < 4; ++i)
+                resultMatrix(x)[y] += matrix1[i][y] * matrix2[x][i];
+        }
+    ReportFailure(matrix4x4Name, "matrix * matrix", resultMatrix == matrix1 * matrix2);
+}
+
+void Testmatrix4x4(void)
+{
+    Testmatrix4x4Constructors();
+    Testmatrix4x4Comparison();
+    Testmatrix4x4BinaryOps();
+}
+
+int main(int, char *[])
+{
+    int vectorFailures = 0;
+    int matrixFailures = 0;
+    Testvector3();
+    vectorFailures = failures;
+    failures = 0;
+
+    Testmatrix4x4();
+    matrixFailures = failures;
+
+    cout << endl
+         << "****************************************" << endl;
+    cout << "*                                      *" << endl;
+    if (vectorFailures + matrixFailures == 0)
+        cout << "*    No failures detected in Math3D    *" << endl;
+    else
+    {
+        cout << "*     FAILURES DETECTED IN MATH3D!     *" << endl;
+        cout << "*     Total vector3 failures: " << vectorFailures << "        *" << endl;
+        cout << "*     Total matrix4x4 failures: " << matrixFailures << "        *" << endl;
+        cout << "*   Total Failures in Math3D: " << vectorFailures + matrixFailures << "        *"
+             << endl;
+    }
+    cout << "*                                      *" << endl;
+    cout << "****************************************" << endl;
+
+    return 0;
+}
+#endif

utilities/dumb3d.h

@@ -0,0 +1,655 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <cmath>
+
+namespace Math3D
+{
+
+// Define this to have Math3D.cp generate a main which tests these classes
+//#define TEST_MATH3D
+
+// Define this to allow streaming output of vectors and matrices
+// Automatically enabled by TEST_MATH3D
+//#define OSTREAM_MATH3D
+
+// definition of the scalar type
+typedef double scalar_t;
+// inline pass-throughs to various basic math functions
+// written in this style to allow for easy substitution with more efficient versions
+inline scalar_t SINE_FUNCTION(scalar_t x)
+{
+    return std::sin(x);
+}
+inline scalar_t COSINE_FUNCTION(scalar_t x)
+{
+    return std::cos(x);
+}
+inline scalar_t SQRT_FUNCTION(scalar_t x)
+{
+    return std::sqrt(x);
+}
+
+// 2 element vector
+class vector2
+{
+  public:
+    vector2(void) :
+        x(0.0), y(0.0)
+    {
+    }
+    vector2(scalar_t a, scalar_t b)
+    {
+        x = a;
+        y = b;
+    }
+    double x;
+    union
+    {
+        double y;
+        double z;
+    };
+};
+// 3 element vector
+class vector3
+{
+  public:
+    vector3(void) :
+        x(0.0), y(0.0), z(0.0)
+    {}
+    vector3( scalar_t X, scalar_t Y, scalar_t Z ) :
+                   x( X ),     y( Y ),     z( Z )
+    {}
+    template <typename Type_, glm::precision Precision_>
+    vector3( glm::tvec3<Type_, Precision_> const &Vector ) :
+        x( Vector.x ), y( Vector.y ), z( Vector.z )
+    {}
+    template <typename Type_, glm::precision Precision_>
+    operator glm::tvec3<Type_, Precision_>() const {
+        return glm::tvec3<Type_, Precision_>{ x, y, z }; }
+    // The int parameter is the number of elements to copy from initArray (3 or 4)
+    //	explicit vector3(scalar_t* initArray, int arraySize = 3)
+    //	{ for (int i = 0;i<arraySize;++i) e[i] = initArray[i]; }
+
+    void RotateX(double angle);
+    void RotateY(double angle);
+    void RotateZ(double angle);
+
+    void inline Normalize();
+    void inline SafeNormalize();
+    double inline Length() const;
+    double inline LengthSquared() const;
+    void inline Zero()
+    {
+        x = y = z = 0.0;
+    };
+
+    // [] is to read, () is to write (const correctness)
+    //	const scalar_t& operator[] (int i) const { return e[i]; }
+    //	scalar_t& operator() (int i) { return e[i]; }
+
+    // Provides access to the underlying array; useful for passing this class off to C APIs
+    const scalar_t *readArray(void)
+    {
+        return &x;
+    }
+    scalar_t *getArray(void)
+    {
+        return &x;
+    }
+
+    double x, y, z;
+
+    bool inline Equal(vector3 *v)
+    { // sprawdzenie odległości punktów
+        if (std::fabs(x - v->x) > 0.02)
+            return false; // sześcian zamiast kuli
+        if (std::fabs(z - v->z) > 0.02)
+            return false;
+        if (std::fabs(y - v->y) > 0.02)
+            return false;
+        return true;
+    };
+
+	operator glm::dvec3() const
+	{
+		return glm::dvec3(x, y, z);
+	}
+  private:
+};
+
+// 4 element matrix
+class matrix4x4
+{
+  public:
+    matrix4x4(void)
+    {
+        memset( e, 0, sizeof( e ) );
+    }
+
+    // When defining matrices in C arrays, it is easiest to define them with
+    // the column increasing fastest.  However, some APIs (OpenGL in particular) do this
+    // backwards, hence the "constructor" from C matrices, or from OpenGL matrices.
+    // Note that matrices are stored internally in OpenGL format.
+    void C_Matrix(scalar_t const *initArray)
+    {
+        int i = 0;
+        for (int y = 0; y < 4; ++y)
+            for (int x = 0; x < 4; ++x)
+                (*this)(x)[y] = initArray[i++];
+    }
+    template <typename Type_>
+    void OpenGL_Matrix(Type_ const *initArray)
+    {
+        int i = 0;
+        for (int x = 0; x < 4; ++x)
+            for (int y = 0; y < 4; ++y)
+                (*this)(x)[y] = initArray[i++];
+    }
+
+    // [] is to read, () is to write (const correctness)
+    // m[x][y] or m(x)[y] is the correct form
+    const scalar_t *operator[](int i) const
+    {
+        return &e[i << 2];
+    }
+    scalar_t *operator()(int i)
+    {
+        return &e[i << 2];
+    }
+
+    // Low-level access to the array.
+    const scalar_t *readArray(void) const 
+    {
+        return e;
+    }
+    scalar_t *getArray(void)
+    {
+        return e;
+    }
+
+    // Construct various matrices; REPLACES CURRENT CONTENTS OF THE MATRIX!
+    // Written this way to work in-place and hence be somewhat more efficient
+    void Identity(void)
+    {
+        for (int i = 0; i < 16; ++i)
+            e[i] = 0;
+        e[0] = 1;
+        e[5] = 1;
+        e[10] = 1;
+        e[15] = 1;
+    }
+    inline matrix4x4 &Rotation(scalar_t angle, vector3 axis);
+    inline matrix4x4 &Translation(const vector3 &translation);
+    inline matrix4x4 &Scale(scalar_t x, scalar_t y, scalar_t z);
+    inline matrix4x4 &BasisChange(const vector3 &v, const vector3 &n);
+    inline matrix4x4 &BasisChange(const vector3 &u, const vector3 &v, const vector3 &n);
+    inline matrix4x4 &ProjectionMatrix(bool perspective, scalar_t l, scalar_t r, scalar_t t,
+                                       scalar_t b, scalar_t n, scalar_t f);
+    void InitialRotate()
+    { // taka specjalna rotacja, nie ma co ciągać trygonometrii
+        double f;
+        for (int i = 0; i < 16; i += 4)
+        {
+            e[i] = -e[i]; // zmiana znaku X
+            f = e[i + 1];
+            e[i + 1] = e[i + 2];
+            e[i + 2] = f; // zamiana Y i Z
+        }
+    };
+    inline bool IdentityIs()
+    { // sprawdzenie jednostkowości
+        for (int i = 0; i < 16; ++i)
+            if (e[i] != ((i % 5) ? 0.0 : 1.0)) // jedynki tylko na 0, 5, 10 i 15
+                return false;
+        return true;
+    }
+
+	operator glm::dmat4() const
+	{
+		return glm::make_mat4(e);
+	}
+
+  private:
+    scalar_t e[16];
+};
+
+// Scalar operations
+
+// Returns false if there are 0 solutions
+inline bool SolveQuadratic(scalar_t a, scalar_t b, scalar_t c, scalar_t *x1, scalar_t *x2);
+
+// Vector operations
+inline bool operator==(const vector3 &, const vector3 &);
+inline bool operator<(const vector3 &, const vector3 &);
+
+inline vector3 operator-(const vector3 &);
+inline vector3 operator*(const vector3 &, scalar_t);
+inline vector3 operator*(scalar_t, const vector3 &);
+inline vector3 &operator*=(vector3 &, scalar_t);
+inline vector3 operator/(const vector3 &, scalar_t);
+inline vector3 &operator/=(vector3 &, scalar_t);
+
+inline vector3 operator+(const vector3 &, const vector3 &);
+inline vector3 &operator+=(vector3 &, const vector3 &);
+inline vector3 operator-(const vector3 &, const vector3 &);
+inline vector3 &operator-=(vector3 &, const vector3 &);
+
+// X3 is the 3 element version of a function, X4 is four element
+inline scalar_t LengthSquared3(const vector3 &);
+inline scalar_t LengthSquared4(const vector3 &);
+inline scalar_t Length3(const vector3 &);
+inline scalar_t Length4(const vector3 &);
+inline vector3 Normalize(const vector3 &);
+inline vector3 Normalize4(const vector3 &);
+inline scalar_t DotProduct(const vector3 &, const vector3 &);
+inline scalar_t DotProduct4(const vector3 &, const vector3 &);
+// Cross product is only defined for 3 elements
+inline vector3 CrossProduct(const vector3 &, const vector3 &);
+
+inline vector3 operator*(const matrix4x4 &, const vector3 &);
+
+// Matrix operations
+inline bool operator==(const matrix4x4 &, const matrix4x4 &);
+inline bool operator<(const matrix4x4 &, const matrix4x4 &);
+
+inline matrix4x4 operator*(const matrix4x4 &, const matrix4x4 &);
+
+inline matrix4x4 Transpose(const matrix4x4 &);
+scalar_t Determinant(const matrix4x4 &);
+matrix4x4 Adjoint(const matrix4x4 &);
+matrix4x4 Inverse(const matrix4x4 &);
+
+// Inline implementations follow
+inline bool SolveQuadratic(scalar_t a, scalar_t b, scalar_t c, scalar_t *x1, scalar_t *x2)
+{
+    // If a == 0, solve a linear equation
+    if (a == 0)
+    {
+        if (b == 0)
+            return false;
+        *x1 = c / b;
+        *x2 = *x1;
+        return true;
+    }
+    else
+    {
+        scalar_t det = b * b - 4 * a * c;
+        if (det < 0)
+            return false;
+        det = SQRT_FUNCTION(det) / (2 * a);
+        scalar_t prefix = -b / (2 * a);
+        *x1 = prefix + det;
+        *x2 = prefix - det;
+        return true;
+    }
+}
+
+inline bool operator==(const vector3 &v1, const vector3 &v2)
+{
+    return (v1.x == v2.x && v1.y == v2.y && v1.z == v2.z);
+}
+
+inline bool operator<(const vector3 &v1, const vector3 &v2)
+{
+    //	for (int i=0;i<4;++i)
+    //		if (v1[i] < v2[i]) return true;
+    //	else if (v1[i] > v2[i]) return false;
+
+    return false;
+}
+
+inline vector3 operator-(const vector3 &v)
+{
+    return vector3(-v.x, -v.y, -v.z);
+}
+
+inline vector3 operator*(const vector3 &v, scalar_t k)
+{
+    return vector3(k * v.x, k * v.y, k * v.z);
+}
+
+inline vector3 operator*(scalar_t k, const vector3 &v)
+{
+    return v * k;
+}
+
+inline vector3 &operator*=(vector3 &v, scalar_t k)
+{
+    v.x *= k;
+    v.y *= k;
+    v.z *= k;
+    return v;
+};
+
+inline vector3 operator/(const vector3 &v, scalar_t k)
+{
+    return vector3(v.x / k, v.y / k, v.z / k);
+}
+
+inline vector3 &operator/=(vector3 &v, scalar_t k)
+{
+    v.x /= k;
+    v.y /= k;
+    v.z /= k;
+    return v;
+}
+
+inline scalar_t LengthSquared3(const vector3 &v)
+{
+    return DotProduct(v, v);
+}
+inline scalar_t LengthSquared4(const vector3 &v)
+{
+    return DotProduct4(v, v);
+}
+
+inline scalar_t Length3(const vector3 &v)
+{
+    return SQRT_FUNCTION(LengthSquared3(v));
+}
+inline scalar_t Length4(const vector3 &v)
+{
+    return SQRT_FUNCTION(LengthSquared4(v));
+}
+
+inline vector3 Normalize(const vector3 &v)
+{
+    vector3 retVal = v / Length3(v);
+    return retVal;
+}
+inline vector3 SafeNormalize(const vector3 &v)
+{
+    double l = Length3(v);
+    vector3 retVal;
+    if (l == 0)
+        retVal.x = retVal.y = retVal.z = 0;
+    else
+        retVal = v / l;
+    return retVal;
+}
+inline vector3 Normalize4(const vector3 &v)
+{
+    return v / Length4(v);
+}
+
+inline vector3 operator+(const vector3 &v1, const vector3 &v2)
+{
+    return vector3(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
+}
+
+inline vector3 &operator+=(vector3 &v1, const vector3 &v2)
+{
+    v1.x += v2.x;
+    v1.y += v2.y;
+    v1.z += v2.z;
+    return v1;
+}
+
+inline vector3 operator-(const vector3 &v1, const vector3 &v2)
+{
+    return vector3(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
+}
+
+inline vector3 &operator-=(vector3 &v1, const vector3 &v2)
+{
+    v1.x -= v2.x;
+    v1.y -= v2.y;
+    v1.z -= v2.z;
+    return v1;
+}
+
+inline scalar_t DotProduct(const vector3 &v1, const vector3 &v2)
+{
+    return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
+}
+
+inline scalar_t DotProduct4(const vector3 &v1, const vector3 &v2)
+{
+    return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
+}
+
+inline vector3 CrossProduct(const vector3 &v1, const vector3 &v2)
+{
+    return vector3(v1.y * v2.z - v1.z * v2.y, v2.x * v1.z - v2.z * v1.x, v1.x * v2.y - v1.y * v2.x);
+}
+
+inline vector3 Interpolate( vector3 const &First, vector3 const &Second, float const Factor ) {
+
+    return ( First * ( 1.0f - Factor ) ) + ( Second * Factor );
+}
+
+inline vector3 operator*(const matrix4x4 &m, const vector3 &v)
+{
+    return vector3(v.x * m[0][0] + v.y * m[1][0] + v.z * m[2][0] + m[3][0],
+                   v.x * m[0][1] + v.y * m[1][1] + v.z * m[2][1] + m[3][1],
+                   v.x * m[0][2] + v.y * m[1][2] + v.z * m[2][2] + m[3][2]);
+}
+
+void inline vector3::Normalize()
+{
+    double il = 1 / Length();
+    x *= il;
+    y *= il;
+    z *= il;
+}
+
+double inline vector3::Length() const
+{
+    return SQRT_FUNCTION(x * x + y * y + z * z);
+}
+
+double inline vector3::LengthSquared() const {
+
+    return ( x * x + y * y + z * z );
+}
+
+inline bool operator==(const matrix4x4 &m1, const matrix4x4 &m2)
+{
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+            if (m1[x][y] != m2[x][y])
+                return false;
+    return true;
+}
+
+inline bool operator<(const matrix4x4 &m1, const matrix4x4 &m2)
+{
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+            if (m1[x][y] < m2[x][y])
+                return true;
+            else if (m1[x][y] > m2[x][y])
+                return false;
+    return false;
+}
+
+inline matrix4x4 operator*(const matrix4x4 &m1, const matrix4x4 &m2)
+{
+    matrix4x4 retVal;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+        {
+            retVal(x)[y] = 0;
+            for (int i = 0; i < 4; ++i)
+                retVal(x)[y] += m1[i][y] * m2[x][i];
+        }
+    return retVal;
+}
+
+inline matrix4x4 Transpose(const matrix4x4 &m)
+{
+    matrix4x4 retVal;
+    for (int x = 0; x < 4; ++x)
+        for (int y = 0; y < 4; ++y)
+            retVal(x)[y] = m[y][x];
+    return retVal;
+}
+
+inline matrix4x4 &matrix4x4::Rotation(scalar_t angle, vector3 axis)
+{
+    scalar_t c = COSINE_FUNCTION(angle);
+    scalar_t s = SINE_FUNCTION(angle);
+    // One minus c (short name for legibility of formulai)
+    scalar_t omc = (1 - c);
+
+    if (LengthSquared3(axis) != 1)
+        axis = Normalize(axis);
+
+    scalar_t x = axis.x;
+    scalar_t y = axis.y;
+    scalar_t z = axis.z;
+    scalar_t xs = x * s;
+    scalar_t ys = y * s;
+    scalar_t zs = z * s;
+    scalar_t xyomc = x * y * omc;
+    scalar_t xzomc = x * z * omc;
+    scalar_t yzomc = y * z * omc;
+
+    e[0] = x * x * omc + c;
+    e[1] = xyomc + zs;
+    e[2] = xzomc - ys;
+    e[3] = 0;
+
+    e[4] = xyomc - zs;
+    e[5] = y * y * omc + c;
+    e[6] = yzomc + xs;
+    e[7] = 0;
+
+    e[8] = xzomc + ys;
+    e[9] = yzomc - xs;
+    e[10] = z * z * omc + c;
+    e[11] = 0;
+
+    e[12] = 0;
+    e[13] = 0;
+    e[14] = 0;
+    e[15] = 1;
+
+    return *this;
+}
+
+inline matrix4x4 &matrix4x4::Translation(const vector3 &translation)
+{
+    Identity();
+    e[12] = translation.x;
+    e[13] = translation.y;
+    e[14] = translation.z;
+    return *this;
+}
+
+inline matrix4x4 &matrix4x4::Scale(scalar_t x, scalar_t y, scalar_t z)
+{
+    Identity();
+    e[0] = x;
+    e[5] = y;
+    e[10] = z;
+    return *this;
+}
+
+inline matrix4x4 &matrix4x4::BasisChange(const vector3 &u, const vector3 &v, const vector3 &n)
+{
+    e[0] = u.x;
+    e[1] = v.x;
+    e[2] = n.x;
+    e[3] = 0;
+
+    e[4] = u.y;
+    e[5] = v.y;
+    e[6] = n.y;
+    e[7] = 0;
+
+    e[8] = u.z;
+    e[9] = v.z;
+    e[10] = n.z;
+    e[11] = 0;
+
+    e[12] = 0;
+    e[13] = 0;
+    e[14] = 0;
+    e[15] = 1;
+
+    return *this;
+}
+
+inline matrix4x4 &matrix4x4::BasisChange(const vector3 &v, const vector3 &n)
+{
+    vector3 u = CrossProduct(v, n);
+    return BasisChange(u, v, n);
+}
+
+inline matrix4x4 &matrix4x4::ProjectionMatrix(bool perspective, scalar_t left_plane,
+                                              scalar_t right_plane, scalar_t top_plane,
+                                              scalar_t bottom_plane, scalar_t near_plane,
+                                              scalar_t far_plane)
+{
+    scalar_t A = (right_plane + left_plane) / (right_plane - left_plane);
+    scalar_t B = (top_plane + bottom_plane) / (top_plane - bottom_plane);
+    scalar_t C = (far_plane + near_plane) / (far_plane - near_plane);
+
+    Identity();
+    if (perspective)
+    {
+        e[0] = 2 * near_plane / (right_plane - left_plane);
+        e[5] = 2 * near_plane / (top_plane - bottom_plane);
+        e[8] = A;
+        e[9] = B;
+        e[10] = C;
+        e[11] = -1;
+        e[14] = 2 * far_plane * near_plane / (far_plane - near_plane);
+    }
+    else
+    {
+        e[0] = 2 / (right_plane - left_plane);
+        e[5] = 2 / (top_plane - bottom_plane);
+        e[10] = -2 / (far_plane - near_plane);
+        e[12] = A;
+        e[13] = B;
+        e[14] = C;
+    }
+    return *this;
+}
+
+double inline SquareMagnitude(const vector3 &v)
+{
+    return v.x * v.x + v.y * v.y + v.z * v.z;
+}
+
+} // close namespace
+
+// If we're testing, then we need OSTREAM support
+#ifdef TEST_MATH3D
+#define OSTREAM_MATH3D
+#endif
+
+#ifdef OSTREAM_MATH3D
+#include <ostream>
+// Streaming support
+std::ostream &operator<<(std::ostream &os, const Math3D::vector3 &v)
+{
+    os << '[';
+    for (int i = 0; i < 4; ++i)
+        os << ' ' << v[i];
+    return os << ']';
+}
+
+std::ostream &operator<<(std::ostream &os, const Math3D::matrix4x4 &m)
+{
+    for (int y = 0; y < 4; ++y)
+    {
+        os << '[';
+        for (int x = 0; x < 4; ++x)
+            os << ' ' << m[x][y];
+        os << " ]" << std::endl;
+    }
+    return os;
+}
+#endif // OSTREAM_MATH3D

utilities/headtrack.cpp

@@ -0,0 +1,63 @@
+#include "stdafx.h"
+#include "headtrack.h"
+#include "Globals.h"
+
+headtrack::headtrack()
+{
+
+}
+
+void headtrack::find_joy() {
+    for (size_t i = GLFW_JOYSTICK_1; i <= GLFW_JOYSTICK_LAST; i++) {
+        if (!glfwJoystickPresent(i))
+            continue;
+
+        std::string name(glfwGetJoystickName(i));
+        if (name == Global.headtrack_conf.joy) {
+            joy_id = i;
+            return;
+        }
+    }
+
+    joy_id = -1;
+}
+
+float headtrack::get_axis(const float *data, int count, int axis, float mul) {
+    if (axis < 0)
+        return 0.0f;
+    if (axis >= count)
+        return 0.0f;
+
+    return data[axis] * mul;
+}
+
+void headtrack::update()
+{
+    if (joy_id == -1 || !glfwJoystickPresent(joy_id)) {
+        Global.viewport_move = glm::vec3();
+        Global.viewport_rotate = glm::mat3();
+        find_joy();
+        return;
+    }
+
+    int count;
+    const float* axes = glfwGetJoystickAxes(joy_id, &count);
+
+    auto const &move_axes = Global.headtrack_conf.move_axes;
+    auto const &rot_axes = Global.headtrack_conf.rot_axes;
+    auto const &move_mul = Global.headtrack_conf.move_mul;
+    auto const &rot_mul = Global.headtrack_conf.rot_mul;
+
+    glm::vec3 move;
+    move.x = get_axis(axes, count, move_axes.x, move_mul.x);
+    move.y = get_axis(axes, count, move_axes.y, move_mul.y);
+    move.z = get_axis(axes, count, move_axes.z, move_mul.z);
+
+    glm::vec3 rotate;
+    rotate.x = get_axis(axes, count, rot_axes.x, rot_mul.x);
+    rotate.y = get_axis(axes, count, rot_axes.y, rot_mul.y);
+    rotate.z = get_axis(axes, count, rot_axes.z, rot_mul.z);
+
+    Global.viewport_move = move;
+    Global.viewport_rotate = glm::orientate3(rotate);
+}

utilities/headtrack.h

@@ -0,0 +1,14 @@
+#pragma once
+
+class headtrack
+{
+    int joy_id = -1;
+
+    void find_joy();
+    float get_axis(const float *data, int count, int axis, float mul);
+
+public:
+    headtrack();
+
+    void update();
+};

utilities/motiontelemetry.cpp

@@ -0,0 +1,161 @@
+#include "stdafx.h"
+#include "motiontelemetry.h"
+#include "Globals.h"
+#include "Logs.h"
+#include "Train.h"
+#include "Timer.h"
+#include "Driver.h"
+#include "simulation.h"
+
+#ifdef _WIN32
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#endif
+
+motiontelemetry::motiontelemetry()
+{
+	conf = Global.motiontelemetry_conf;
+
+#ifdef _WIN32
+	WSADATA wsd;
+	if (WSAStartup(MAKEWORD(2, 2), &wsd))
+		throw std::runtime_error("failed to init winsock");
+#endif
+
+	struct addrinfo hints, *res;
+	memset(&hints, 0, sizeof(hints));
+
+	hints.ai_family = AF_UNSPEC;
+	hints.ai_socktype = (conf.proto == "tcp" ? SOCK_STREAM : SOCK_DGRAM);
+
+	if (getaddrinfo(conf.address.c_str(), conf.port.c_str(), &hints, &res))
+		throw std::runtime_error("motiontelemetry: getaddrinfo failed");
+
+	sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+
+	if (sock == -1)
+		throw std::runtime_error("motiontelemetry: failed to create socket");
+
+	if (connect(sock, res->ai_addr, res->ai_addrlen) == -1)
+		throw std::runtime_error("motiontelemetry: failed to connect socket");
+
+	WriteLog("motiontelemetry: socket connected");
+}
+
+motiontelemetry::~motiontelemetry()
+{
+	shutdown(sock, 2);
+#ifdef _WIN32
+	WSACleanup();
+#endif
+}
+
+void motiontelemetry::update()
+{
+	auto now = std::chrono::high_resolution_clock::now();
+	if (std::chrono::duration<float>(now - last_update).count() < conf.updatetime)
+		return;
+	last_update = now;
+
+	if (Global.iPause)
+		return;
+
+    const TTrain *t = simulation::Train;
+	if (!t)
+		return;
+
+	double dt = Timer::GetDeltaTime();
+
+	glm::dvec3 front = t->Dynamic()->VectorFront();
+	glm::dvec3 up = t->Dynamic()->VectorUp();
+	glm::dvec3 left = t->Dynamic()->VectorLeft();
+
+	glm::dvec3 pos = t->Dynamic()->GetPosition();
+	glm::dvec3 vel = (pos - last_pos) / dt;
+	glm::dvec3 acc = (vel - last_vel) / dt;
+	
+	glm::dvec3 local_acc;
+	
+	if (conf.includegravity)
+	{
+		glm::dvec3 gravity(0.0, 9.81, 0.0);
+		local_acc = glm::dvec3(-glm::dot(gravity, left), glm::dot(gravity, up), glm::dot(gravity, front));
+	}
+
+	if (conf.latposbased)
+		local_acc.x -= glm::dot(acc, left);
+	else
+		local_acc.x -= t->Occupied()->AccN;
+
+	local_acc.y += glm::dot(acc, up) + t->Occupied()->AccVert * conf.axlebumpscale;
+
+	if (conf.fwdposbased)
+		local_acc.z += glm::dot(acc, front);
+	else
+		local_acc.z += t->Occupied()->AccSVBased;
+
+	local_acc /= 9.81;
+
+	// roll calculation, maybe too complicated?
+
+	// transform to left-handed
+	front.z *= -1;
+	up.z *= -1;
+
+	// make sure that vectors are orthonormal
+	glm::dvec3 oright = glm::normalize(glm::cross(up, front));
+	glm::dvec3 oup = glm::cross(front, oright);
+
+	// right and up vector without roll
+	glm::dvec3 right0 = glm::normalize(glm::cross(glm::dvec3(0.0, 1.0, 0.0), front));
+	glm::dvec3 up0 = glm::cross(front, right0);
+
+	double cosroll = glm::dot(up0, oup);
+	double sinroll;
+
+	if (abs(right0.x) > abs(right0.y) && abs(right0.x) > abs(right0.z))
+		sinroll = (up0.x * cosroll - oup.x) / right0.x;
+	else if (abs(right0.y) > abs(right0.x) && abs(right0.y) > abs(right0.z))
+		sinroll = (up0.y * cosroll - oup.y) / right0.y;
+	else
+		sinroll = (up0.z * cosroll - oup.z) / right0.z;
+
+	glm::dvec3 rot(asin(-front.y), atan2(front.x, front.z), asin(sinroll));
+
+	double velocity = t->Occupied()->V;
+	double yaw_vel = (rot.y - last_yaw) / dt;
+
+	last_yaw = rot.y;
+	last_pos = pos;
+	last_vel = vel;
+
+    if (t->Occupied()->CabActive < 0)
+	{
+		velocity *= -1;
+		local_acc.x *= -1;
+		local_acc.z *= -1;
+		yaw_vel *= -1;
+		rot *= -1;
+	}
+
+	float buffer[12] = { 0 };
+	buffer[0] = Timer::GetTime();
+	buffer[1] = velocity;
+	buffer[2] = local_acc.y;
+	buffer[3] = local_acc.z;
+	buffer[4] = local_acc.x;
+	buffer[5] = glm::degrees(rot.x);
+	buffer[6] = glm::degrees(rot.z);
+	buffer[7] = glm::degrees(rot.y);
+	buffer[8] = yaw_vel;
+	buffer[9] = 1.0f;
+
+	if (send(sock, (char*)buffer, sizeof(buffer), 0) == -1)
+		WriteLog("motiontelemetry: socket send failed");
+}

utilities/motiontelemetry.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <string>
+#include <chrono>
+
+class motiontelemetry
+{
+public:
+	struct conf_t
+	{
+		bool enable;
+		std::string proto;
+		std::string address;
+		std::string port;
+		float updatetime;
+		bool includegravity;
+		bool fwdposbased;
+		bool latposbased;
+		float axlebumpscale;
+	};
+
+private:
+	int sock;
+	std::chrono::time_point<std::chrono::high_resolution_clock> last_update;
+	conf_t conf;
+	glm::dvec3 last_pos;
+	glm::dvec3 last_vel;
+	double last_yaw;
+
+public:
+	motiontelemetry();
+	~motiontelemetry();
+	void update();
+};

utilities/parser.cpp

@@ -0,0 +1,603 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "parser.h"
+#include "utilities.h"
+#include "Logs.h"
+
+#include "scenenodegroups.h"
+
+/*
+    MaSzyna EU07 locomotive simulator parser
+    Copyright (C) 2003  TOLARIS
+
+*/
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+// cParser -- generic class for parsing text data.
+
+namespace
+{
+inline std::array<bool, 256> makeBreakTable(const char *brk)
+{
+	std::array<bool, 256> arr{};
+	for (unsigned char c : std::string_view(brk ? brk : ""))
+	{
+		arr[c] = true;
+	}
+	return arr;
+}
+
+inline char toLowerChar(char c)
+{
+	return static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
+}
+
+inline bool startsWithBOM(const std::string &s)
+{
+	return s.size() >= 3
+		&& static_cast<unsigned char>(s[0]) == 0xEF
+		&& static_cast<unsigned char>(s[1]) == 0xBB
+		&& static_cast<unsigned char>(s[2]) == 0xBF;
+}
+} // namespace
+
+// constructors
+cParser::cParser(std::string const &Stream, buffertype const Type, std::string Path, bool const Loadtraction, std::vector<std::string> Parameters, bool allowRandom)
+    : allowRandomIncludes(allowRandom), LoadTraction(Loadtraction), mPath(Path)
+{
+	// store to calculate sub-sequent includes from relative path
+	if (Type == buffertype::buffer_FILE)
+	{
+		mFile = Stream;
+	}
+	// reset pointers and attach proper type of buffer
+	switch (Type)
+	{
+	case buffer_FILE:
+	{
+		Path.append(Stream);
+		mStream = std::make_shared<std::ifstream>(Path, std::ios_base::binary);
+		// content of *.inc files is potentially grouped together
+		if ((Stream.size() >= 4) && (ToLower(Stream.substr(Stream.size() - 4)) == ".inc"))
+		{
+			mIncFile = true;
+			scene::Groups.create();
+		}
+		break;
+	}
+	case buffer_TEXT:
+	{
+		mStream = std::make_shared<std::istringstream>(Stream);
+		break;
+	}
+	default:
+	{
+		break;
+	}
+	}
+	// calculate stream size
+	if (mStream)
+	{
+		if (true == mStream->fail())
+		{
+			ErrorLog("Failed to open file \"" + Path + "\"");
+		}
+		else
+		{
+			mSize = mStream->rdbuf()->pubseekoff(0, std::ios_base::end);
+			mStream->rdbuf()->pubseekoff(0, std::ios_base::beg);
+			mLine = 1;
+		}
+	}
+	// set parameter set if one was provided
+	if (false == Parameters.empty())
+	{
+		parameters.swap(Parameters);
+	}
+}
+
+// destructor
+cParser::~cParser()
+{
+
+	if (true == mIncFile)
+	{
+		// wrap up the node group holding content of processed file
+		scene::Groups.close();
+	}
+}
+
+template <> glm::vec3 cParser::getToken(bool const ToLower, char const *Break)
+{
+	// NOTE: this specialization ignores default arguments
+	getTokens(3, false, "\n\r\t  ,;[]");
+	glm::vec3 output;
+	*this >> output.x >> output.y >> output.z;
+	return output;
+};
+
+template <> cParser &cParser::operator>>(std::string &Right)
+{
+
+	if (true == this->tokens.empty())
+	{
+		return *this;
+	}
+
+	Right = this->tokens.front();
+	this->tokens.pop_front();
+
+	return *this;
+}
+
+template <> cParser &cParser::operator>>(bool &Right)
+{
+
+	if (true == this->tokens.empty())
+	{
+		return *this;
+	}
+
+	Right = ((this->tokens.front() == "true") || (this->tokens.front() == "yes") || (this->tokens.front() == "1"));
+	this->tokens.pop_front();
+
+	return *this;
+}
+
+template <> bool cParser::getToken<bool>(bool const ToLower, const char *Break)
+{
+
+	auto const token = getToken<std::string>(true, Break);
+	return ((token == "true") || (token == "yes") || (token == "1"));
+}
+
+// methods
+cParser &cParser::autoclear(bool const Autoclear)
+{
+
+	m_autoclear = Autoclear;
+	if (mIncludeParser)
+	{
+		mIncludeParser->autoclear(Autoclear);
+	}
+
+	return *this;
+}
+
+bool cParser::getTokens(unsigned int Count, bool ToLower, const char *Break)
+{
+	if (true == m_autoclear)
+	{
+		// legacy parser behaviour
+		tokens.clear();
+	}
+	/*
+	 if (LoadTraction==true)
+	  trtest="niemaproblema"; //wczytywać
+	 else
+	  trtest="x"; //nie wczytywać
+	*/
+	/*
+	    int i;
+	    this->str("");
+	    this->clear();
+	*/
+	for (unsigned int i = tokens.size(); i < Count; ++i)
+	{
+		std::string token = readToken(ToLower, Break);
+		if (true == token.empty())
+		{
+			// no more tokens
+			break;
+		}
+		// collect parameters
+		tokens.emplace_back(token);
+		/*
+		        if (i == 0)
+		            this->str(token);
+		        else
+		        {
+		            std::string temp = this->str();
+		            temp.append("\n");
+		            temp.append(token);
+		            this->str(temp);
+		        }
+		*/
+	}
+	if (tokens.size() < Count)
+		return false;
+	else
+		return true;
+}
+
+std::string cParser::readTokenFromDelegate(bool ToLower, const char *Break)
+{
+	if (!mIncludeParser)
+		return {};
+	std::string token = mIncludeParser->readToken(ToLower, Break);
+	if (token.empty())
+	{
+		mIncludeParser = nullptr;
+	}
+	return token;
+}
+
+std::string cParser::readTokenFromStream(bool ToLower, const char *Break)
+{
+	std::string token;
+	token.reserve(64);
+
+	const auto breakTable = makeBreakTable(Break);
+	char c = 0;
+
+
+	while (token.empty() && mStream->peek() != EOF) {
+		while (mStream->peek() != EOF) {
+			c = static_cast<char>(mStream->get());
+
+			if (c == '\n') {
+				++mLine;
+			}
+
+			const unsigned char uc = static_cast<unsigned char>(c);
+			if (breakTable[uc]) {
+				// separator ends token (or continues skipping if token empty)
+				if (!token.empty())
+					break;
+				continue;
+			}
+
+			if (ToLower) c = toLowerChar(c);
+			token.push_back(c);
+
+			if (findQuotes(token)) {
+				continue; // glue quoted content
+			}
+			if (skipComments && trimComments(token)) {
+				break; // don't glue tokens separated by comment
+			}
+		}
+	}
+
+	return token;
+}
+
+void cParser::stripFirstTokenBOM(std::string& token, bool ToLower, const char* Break) {
+	if (!mFirstToken) return;
+	mFirstToken = false;
+
+	if (startsWithBOM(token)) {
+		token.erase(0, 3);
+	}
+
+	// if first "token" was standalone BOM, read the next real token (avoid recursion)
+	while (token.empty() && mStream->peek() != EOF) {
+		token = readToken(ToLower, Break);
+		// readToken will not re-enter BOM stripping because mFirstToken is now false
+		break;
+	}
+}
+
+void cParser::substituteParameters(std::string& token, bool ToLower) {
+	if (parameters.empty()) return;
+
+	// Replace occurrences of "(pN)" anywhere in token.
+	// Keep behavior: if missing parameter -> "none".
+	size_t pos = 0;
+	while ((pos = token.find("(p", pos)) != std::string::npos) {
+		const size_t close = token.find(')', pos);
+		if (close == std::string::npos) break; // malformed -> stop like old behavior (it would substr weirdly)
+
+		const std::string idxStr = token.substr(pos + 2, close - (pos + 2));
+		token.erase(pos, (close - pos) + 1);
+
+		const size_t nr = static_cast<size_t>(std::atoi(idxStr.c_str()));
+		const std::string repl = (nr >= 1 && (nr - 1) < parameters.size())
+			? parameters[nr - 1]
+			: std::string("none");
+
+		const size_t insertPos = pos;
+		token.insert(insertPos, repl);
+
+		if (ToLower) {
+			// Lowercase only what we inserted (same intent as original)
+			for (size_t i = insertPos; i < insertPos + repl.size(); ++i) {
+				token[i] = toLowerChar(token[i]);
+			}
+		}
+
+		pos = insertPos + repl.size(); // continue after inserted text
+	}
+}
+
+void cParser::skipIncludeBlock() {
+	// mimic original: while token != "end" readToken(true)
+	std::string t;
+	do {
+		t = readToken(true);
+	} while (t != "end" && !t.empty());
+}
+
+void cParser::startIncludeFromParser(cParser& srcParser, bool ToLower, std::string includefile) {
+	replace_slashes(includefile);
+
+	const bool allowTraction =
+		(true == LoadTraction) ||
+		((false == contains(includefile, "tr/")) && (false == contains(includefile, "tra/")));
+
+	if (!allowTraction) {
+		// skip include block until "end" (original behavior in token-mode include)
+		skipIncludeBlock();
+		return;
+	}
+
+	const bool isTerrain = contains(includefile, "_ter.scm");
+	if (isTerrain && true == Global.file_binary_terrain_state) {
+		WriteLog("SBT found, ignoring: " + includefile);
+		readParameters(srcParser); // preserve original side-effect: still consume parameters
+		return;
+	}
+
+	if (Global.ParserLogIncludes) {
+		if (isTerrain) WriteLog("including terrain: " + includefile);
+		else {
+			// WriteLog("including: " + includefile);
+		}
+	}
+
+	mIncludeParser = std::make_shared<cParser>(
+		includefile, /*buffer_FILE*/ static_cast<buffertype>(/*buffer_FILE*/ 0), mPath, LoadTraction, readParameters(srcParser)
+	);
+	mIncludeParser->allowRandomIncludes = allowRandomIncludes;
+	mIncludeParser->autoclear(m_autoclear);
+
+	if (mIncludeParser->mSize <= 0) {
+		ErrorLog("Bad include: can't open file \"" + includefile + "\"");
+	}
+}
+
+bool cParser::handleIncludeIfPresent(std::string& token, bool ToLower, const char* Break) {
+	// token-mode include: token == "include"
+	if (expandIncludes && token == "include") {
+		std::string includefile =
+			allowRandomIncludes ? deserialize_random_set(*this) : readToken(ToLower);
+
+		startIncludeFromParser(*this, ToLower, std::move(includefile));
+
+		// after processing include, return next token from current parser
+		token = readToken(ToLower, Break);
+		return true;
+	}
+
+	// line-mode HACK: Break == "\n\r" and line begins with "include"
+	if ((std::strcmp(Break, "\n\r") == 0) && token.compare(0, 7, "include") == 0) {
+		cParser includeparser(token.substr(7));
+		std::string includefile =
+			allowRandomIncludes ? deserialize_random_set(includeparser) : includeparser.readToken(ToLower);
+
+		startIncludeFromParser(includeparser, ToLower, std::move(includefile));
+
+		token = readToken(ToLower, Break);
+		return true;
+	}
+
+	return false;
+}
+
+std::string cParser::readToken(bool ToLower, const char *Break)
+{
+	std::string token;
+
+	token = readTokenFromDelegate(ToLower, Break);
+	if (token.empty())
+	{
+		token = readTokenFromStream(ToLower, Break);
+	}
+
+	stripFirstTokenBOM(token, ToLower, Break);
+
+	substituteParameters(token, ToLower);
+
+	handleIncludeIfPresent(token, ToLower, Break);
+
+	return token;
+}
+
+std::vector<std::string> cParser::readParameters(cParser &Input)
+{
+
+	std::vector<std::string> includeparameters;
+	std::string parameter = Input.readToken(false); // w parametrach nie zmniejszamy
+	while ((parameter.empty() == false) && (parameter != "end"))
+	{
+		includeparameters.emplace_back(parameter);
+		parameter = Input.readToken(false);
+	}
+	return includeparameters;
+}
+
+std::string cParser::readQuotes(char const Quote)
+{ // read the stream until specified char or stream end
+	std::string token = "";
+	char c{0};
+	bool escaped = false;
+	while (mStream->peek() != EOF)
+	{ // get all chars until the quote mark
+		c = mStream->get();
+
+		if (escaped)
+		{
+			escaped = false;
+		}
+		else
+		{
+			if (c == '\\')
+			{
+				escaped = true;
+				continue;
+			}
+			else if (c == Quote)
+				break;
+		}
+
+		if (c == '\n')
+			++mLine; // update line counter
+		token += c;
+	}
+
+	return token;
+}
+
+void cParser::skipComment(std::string const &Endmark)
+{ // pobieranie znaków aż do znalezienia znacznika końca
+	std::string input = "";
+	char c{0};
+	auto const endmarksize = Endmark.size();
+	while (mStream->peek() != EOF)
+	{
+		// o ile nie koniec pliku
+		c = mStream->get(); // pobranie znaku
+		if (c == '\n')
+		{
+			// update line counter
+			++mLine;
+		}
+		input += c;
+		if (input == Endmark) // szukanie znacznika końca
+			break;
+		if (input.size() >= endmarksize)
+		{
+			// keep the read text short, to avoid pointless string re-allocations on longer comments
+			input = input.substr(1);
+		}
+	}
+	return;
+}
+
+bool cParser::findQuotes(std::string &String)
+{
+
+	if (String.back() == '\"')
+	{
+
+		String.pop_back();
+		String += readQuotes();
+		return true;
+	}
+	return false;
+}
+
+bool cParser::trimComments(std::string &String)
+{
+	for (auto const &comment : mComments)
+	{
+		if (String.size() < comment.first.size())
+		{
+			continue;
+		}
+
+		if (String.compare(String.size() - comment.first.size(), comment.first.size(), comment.first) == 0)
+		{
+			skipComment(comment.second);
+			String.resize(String.rfind(comment.first));
+			return true;
+		}
+	}
+	return false;
+}
+
+void cParser::injectString(const std::string &str)
+{
+	if (mIncludeParser)
+	{
+		mIncludeParser->injectString(str);
+	}
+	else
+	{
+		mIncludeParser = std::make_shared<cParser>(str, buffer_TEXT, "", LoadTraction, std::vector<std::string>(), allowRandomIncludes);
+		mIncludeParser->autoclear(m_autoclear);
+	}
+}
+
+int cParser::getProgress() const
+{
+	return static_cast<int>(mStream->rdbuf()->pubseekoff(0, std::ios_base::cur) * 100 / mSize);
+}
+
+int cParser::getFullProgress() const
+{
+
+	int progress = getProgress();
+	if (mIncludeParser)
+		return progress + ((100 - progress) * (mIncludeParser->getProgress()) / 100);
+	else
+		return progress;
+}
+
+std::size_t cParser::countTokens(std::string const &Stream, std::string Path)
+{
+
+	return cParser(Stream, buffer_FILE, Path).count();
+}
+
+std::size_t cParser::count()
+{
+
+	std::string token;
+	size_t count{0};
+	do
+	{
+		token = "";
+		token = readToken(false);
+		++count;
+	} while (false == token.empty());
+
+	return count - 1;
+}
+
+void cParser::addCommentStyle(std::string const &Commentstart, std::string const &Commentend)
+{
+
+	mComments.insert(commentmap::value_type(Commentstart, Commentend));
+}
+
+// returns name of currently open file, or empty string for text type stream
+std::string cParser::Name() const
+{
+
+	if (mIncludeParser)
+	{
+		return mIncludeParser->Name();
+	}
+	else
+	{
+		return mPath + mFile;
+	}
+}
+
+// returns number of currently processed line
+std::size_t cParser::Line() const
+{
+
+	if (mIncludeParser)
+	{
+		return mIncludeParser->Line();
+	}
+	else
+	{
+		return mLine;
+	}
+}
+
+int cParser::LineMain() const
+{
+	return mIncludeParser ? -1 : mLine;
+}

utilities/parser.h

@@ -0,0 +1,161 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <string>
+#include <sstream>
+#include <fstream>
+#include <vector>
+#include <map>
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+// cParser -- generic class for parsing text data, either from file or provided string
+
+class cParser //: public std::stringstream
+{
+  public:
+    // parameters:
+    enum buffertype
+    {
+        buffer_FILE,
+        buffer_TEXT
+    };
+    // constructors:
+    cParser(std::string const &Stream, buffertype const Type = buffer_TEXT, std::string Path = "", bool const Loadtraction = true, std::vector<std::string> Parameters = std::vector<std::string>(), bool allowRandom = false );
+    // destructor:
+    virtual ~cParser();
+    // methods:
+    template <typename Type_>
+    cParser &
+        operator>>( Type_ &Right );
+    template <typename Output_>
+	Output_
+		getToken( bool const ToLower = true, char const *Break = "\n\r\t ;" ) {
+            getTokens( 1, ToLower, Break );
+		    Output_ output;
+            *this >> output;
+		    return output; };
+    inline
+    void
+        ignoreToken() {
+            readToken(); };
+    inline
+    bool
+        expectToken( std::string const &Value ) {
+            return readToken() == Value; };
+    inline
+    bool
+        eof() {
+            return mStream->eof(); };
+    inline
+    bool
+        ok() {
+            return ( !mStream->fail() ); };
+    cParser &
+        autoclear( bool const Autoclear );
+    inline
+    bool
+        autoclear() const {
+            return m_autoclear; }
+    bool
+        getTokens( unsigned int Count = 1, bool ToLower = true, char const *Break = "\n\r\t ;" );
+	std::string readTokenFromDelegate(bool ToLower, const char *Break);
+	std::string readTokenFromStream(bool ToLower, const char *Break);
+	void stripFirstTokenBOM(std::string &token, bool ToLower, const char *Break);
+	void substituteParameters(std::string &token, bool ToLower);
+	void skipIncludeBlock();
+	// returns next incoming token, if any, without removing it from the set
+    inline
+    std::string
+        peek() const {
+            return (
+                false == tokens.empty() ?
+                    tokens.front() :
+                    "" ); }
+	// inject string as internal include
+	void injectString(const std::string &str);
+
+    // returns percentage of file processed so far
+    int getProgress() const;
+    int getFullProgress() const;
+    //
+    static std::size_t countTokens( std::string const &Stream, std::string Path = "" );
+    // add custom definition of text which should be ignored when retrieving tokens
+    void addCommentStyle( std::string const &Commentstart, std::string const &Commentend );
+    // returns name of currently open file, or empty string for text type stream
+    std::string Name() const;
+    // returns number of currently processed line
+    std::size_t Line() const;
+	// returns number of currently processed line in main file, -1 if inside include
+	int LineMain() const;
+	bool expandIncludes = true;
+	bool allowRandomIncludes = false;
+    bool skipComments = true;
+
+  private:
+	void startIncludeFromParser(cParser &srcParser, bool ToLower, std::string includefile);
+	bool handleIncludeIfPresent(std::string &token, bool ToLower, const char *Break);
+	// methods:
+    std::string readToken(bool ToLower = true, const char *Break = "\n\r\t ;");
+	static std::vector<std::string> readParameters( cParser &Input );
+    std::string readQuotes( char const Quote = '\"' );
+    void skipComment( std::string const &Endmark );
+    bool findQuotes( std::string &String );
+    bool trimComments( std::string &String );
+    std::size_t count();
+    // members:
+    bool m_autoclear { true }; // unretrieved tokens are discarded when another read command is issued (legacy behaviour)
+    bool LoadTraction { true }; // load traction?
+    std::shared_ptr<std::istream> mStream; // relevant kind of buffer is attached on creation.
+    std::string mFile; // name of the open file, if any
+    std::string mPath; // path to open stream, for relative path lookups.
+    std::streamoff mSize { 0 }; // size of open stream, for progress report.
+    std::size_t mLine { 0 }; // currently processed line
+    bool mIncFile { false }; // the parser is processing an *.inc file
+    bool mFirstToken { true }; // processing first token in the current file; helper used when checking for utf bom
+    typedef std::map<std::string, std::string> commentmap;
+    commentmap mComments {
+        commentmap::value_type( "/*", "*/" ),
+        commentmap::value_type( "//", "\n" ) };
+    std::shared_ptr<cParser> mIncludeParser; // child class to handle include directives.
+    std::vector<std::string> parameters; // parameter list for included file.
+    std::deque<std::string> tokens;
+};
+
+
+template <>
+glm::vec3
+cParser::getToken( bool const ToLower, const char *Break );
+
+
+template<typename Type_>
+cParser&
+cParser::operator>>( Type_ &Right ) {
+
+    if( true == this->tokens.empty() ) { return *this; }
+
+    std::stringstream converter( this->tokens.front() );
+    converter >> Right;
+    this->tokens.pop_front();
+
+    return *this;
+}
+
+template<>
+cParser&
+cParser::operator>>( std::string &Right );
+
+template<>
+cParser&
+cParser::operator>>( bool &Right );
+
+template<>
+bool
+cParser::getToken<bool>( bool const ToLower, const char *Break );

utilities/translation.cpp

@@ -0,0 +1,383 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+/*
+    MaSzyna EU07 locomotive simulator
+    Copyright (C) 2001-2004  Marcin Wozniak, Maciej Czapkiewicz and others
+*/
+
+#include "stdafx.h"
+#include "translation.h"
+#include "Logs.h"
+#include "Globals.h"
+#include "MOVER.h"
+
+void locale::init()
+{
+	std::fstream stream("lang/" + Global.asLang + ".po", std::ios_base::in | std::ios_base::binary);
+
+	if (!stream.is_open()) {
+		WriteLog("translation: cannot open lang file: lang/" + Global.asLang + ".po");
+		return;
+	}
+
+	crashreport_add_info("translation", Global.asLang);
+
+	while (parse_translation(stream));
+
+	WriteLog("translation: " + std::to_string(lang_mapping.size()) + " strings loaded");
+}
+
+const std::string& locale::lookup_s(const std::string &msg, bool constant)
+{
+	if (constant) {
+		auto it = pointer_cache.find(&msg);
+		if (it != pointer_cache.end())
+			return *((const std::string*)(it->second));
+	}
+
+	auto it = lang_mapping.find(msg);
+	if (it != lang_mapping.end()) {
+		if (constant)
+			pointer_cache.emplace(&msg, &(it->second));
+		return it->second;
+	}
+
+	if (constant)
+		pointer_cache.emplace(&msg, &msg);
+	return msg;
+}
+
+const char* locale::lookup_c(const char *msg, bool constant)
+{
+	if (constant) {
+		auto it = pointer_cache.find(msg);
+		if (it != pointer_cache.end())
+			return (const char*)(it->second);
+	}
+
+	auto it = lang_mapping.find(std::string(msg));
+	if (it != lang_mapping.end()) {
+		if (constant)
+			pointer_cache.emplace(msg, it->second.c_str());
+		return it->second.c_str();
+	}
+
+	if (constant)
+		pointer_cache.emplace(msg, msg);
+	return msg;
+}
+
+bool locale::parse_translation(std::istream &stream)
+{
+	std::string line;
+
+	std::string msgid;
+	std::string msgstr;
+	std::string msgctxt;
+	char last = 'x';
+
+	while (std::getline(stream, line)) {
+		if (line.size() > 0 && line[0] == '#')
+			continue;
+
+		if (string_starts_with(line, "msgid"))
+			last = 'i';
+		else if (string_starts_with(line, "msgstr"))
+			last = 's';
+		else if (string_starts_with(line, "msgctxt"))
+			last = 'c';
+
+		if (line.size() > 1 && last != 'x') {
+			if (last == 'i')
+				msgid += parse_c_literal(line);
+			else if (last == 's')
+				msgstr += parse_c_literal(line);
+			else if (last == 'c')
+				msgctxt += parse_c_literal(line);
+		}
+		else {
+			if (!msgid.empty() && !msgstr.empty()) {
+				// TODO: context support is incomplete
+				if (!msgctxt.empty())
+					lang_mapping.emplace(msgctxt + "\x1d" + msgid, msgstr);
+				else
+					lang_mapping.emplace(msgid, msgstr);
+			}
+			return true;
+		}
+	}
+
+	return false;
+}
+
+std::string locale::parse_c_literal(const std::string &str)
+{
+	std::istringstream stream(str);
+	std::string out;
+
+	bool active = false;
+	bool escape = false;
+
+	char c;
+	while ((c = stream.get()) != std::char_traits<char>::eof()) {
+		if (!escape && c == '"')
+			active = !active;
+		else if (active && !escape && c == '\\')
+			escape = true;
+		else if (active && escape) {
+			if (c == 'r')
+				out += '\r';
+			else if (c == 'n')
+				out += '\n';
+			else if (c == 't')
+				out += '\t';
+			else if (c == '\\')
+				out += '\\';
+			else if (c == '?')
+				out += '?';
+			else if (c == '\'')
+				out += '\'';
+			else if (c == '"')
+				out += '"';
+			else if (c == 'x') {
+				char n1 = stream.get() - 48;
+				char n2 = stream.get() - 48;
+				if (n1 > 9)
+					n1 -= 7;
+				if (n1 > 16)
+					n1 -= 32;
+				if (n2 > 9)
+					n2 -= 7;
+				if (n2 > 16)
+					n2 -= 32;
+				out += ((n1 << 4) | n2);
+			}
+			escape = false;
+		}
+		else if (active)
+			out += c;
+	}
+
+	return out;
+}
+
+std::string locale::label_cab_control(std::string const &Label)
+{
+    if( Label.empty() ) { return ""; }
+
+	static std::unordered_map<std::string, std::string> cabcontrols_labels = {
+	    { "mainctrl:", STRN("master controller") },
+	    { "jointctrl:", STRN("master controller") },
+	    { "scndctrl:", STRN("second controller") },
+	    { "shuntmodepower:", STRN("shunt mode power") },
+	    { "tempomat_sw:", STRN("cruise control") },
+	    { "tempomatoff_sw:", STRN("cruise control") },
+	    { "speedinc_bt:", STRN("cruise control (speed)") },
+	    { "speeddec_bt:", STRN("cruise control (speed)") },
+	    { "speedctrlpowerinc_bt:", STRN("cruise control (power)") },
+	    { "speedctrlpowerdec_bt:", STRN("cruise control (power)") },
+	    { "speedbutton0:", STRN("cruise control (speed)") },
+	    { "speedbutton1:", STRN("cruise control (speed)") },
+	    { "speedbutton2:", STRN("cruise control (speed)") },
+	    { "speedbutton3:", STRN("cruise control (speed)") },
+	    { "speedbutton4:", STRN("cruise control (speed)") },
+	    { "speedbutton5:", STRN("cruise control (speed)") },
+	    { "speedbutton6:", STRN("cruise control (speed)") },
+	    { "speedbutton7:", STRN("cruise control (speed)") },
+	    { "speedbutton8:", STRN("cruise control (speed)") },
+	    { "speedbutton9:", STRN("cruise control (speed)") },
+	    { "distancecounter_sw:", STRN("distance counter") },
+	    { "dirkey:", STRN("reverser") },
+	    { "dirbackward_bt:", STRN("reverser") },
+	    { "dirforward_bt:", STRN("reverser") },
+	    { "dirneutral_bt:", STRN("reverser") },
+	    { "brakectrl:", STRN("train brake") },
+	    { "localbrake:", STRN("independent brake") },
+	    { "manualbrake:", STRN("manual brake") },
+	    { "alarmchain:", STRN("emergency brake") },
+	    { "brakeprofile_sw:", STRN("brake acting speed") },
+	    { "brakeprofileg_sw:", STRN("brake acting speed: cargo") },
+	    { "brakeprofiler_sw:", STRN("brake acting speed: rapid") },
+	    { "brakeopmode_sw", STRN("brake operation mode") },
+	    { "maxcurrent_sw:", STRN("motor overload relay threshold") },
+	    { "waterpump_sw:", STRN("water pump") },
+	    { "waterpumpbreaker_sw:", STRN("water pump breaker") },
+	    { "waterheater_sw:", STRN("water heater") },
+	    { "waterheaterbreaker_sw:", STRN("water heater breaker") },
+	    { "watercircuitslink_sw:", STRN("water circuits link") },
+	    { "fuelpump_sw:", STRN("fuel pump") },
+	    { "oilpump_sw:", STRN("oil pump") },
+	    { "motorblowersfront_sw:", STRN("motor blowers A") },
+	    { "motorblowersrear_sw:", STRN("motor blowers B") },
+	    { "motorblowersalloff_sw:", STRN("all motor blowers") },
+	    { "coolingfans_sw:", STRN("cooling fans") },
+	    { "main_off_bt:", STRN("line breaker") },
+	    { "main_on_bt:", STRN("line breaker") },
+	    { "security_reset_bt:", STRN("alerter") },
+	    { "shp_reset_bt:", STRN("shp") },
+	    { "releaser_bt:", STRN("independent brake releaser") },
+	    { "sand_bt:", STRN("sandbox") },
+	    { "antislip_bt:", STRN("wheelspin brake") },
+	    { "horn_bt:", STRN("horn") },
+	    { "hornlow_bt:", STRN("low tone horn") },
+	    { "hornhigh_bt:", STRN("high tone horn") },
+	    { "whistle_bt:", STRN("whistle") },
+	    { "fuse_bt:", STRN("motor overload relay reset") },
+	    { "converterfuse_bt:", STRN("converter overload relay reset") },
+	    { "stlinoff_bt:", STRN("motor connectors") },
+	    { "doorleftpermit_sw:", STRN("left door (permit)") },
+	    { "doorrightpermit_sw:", STRN("right door (permit)") },
+	    { "doorpermitpreset_sw:", STRN("door (permit)") },
+	    { "door_left_sw:", STRN("left door") },
+	    { "door_right_sw:", STRN("right door") },
+	    { "doorlefton_sw:", STRN("left door (open)") },
+	    { "doorrighton_sw:", STRN("right door (open)") },
+	    { "doorleftoff_sw:", STRN("left door (close)") },
+	    { "doorrightoff_sw:", STRN("right door (close)") },
+	    { "doorallon_sw:", STRN("all doors (open)") },
+	    { "dooralloff_sw:", STRN("all doors (close)") },
+	    { "doorstep_sw:", STRN("doorstep") },
+	    { "doormode_sw", STRN("door control mode") },
+	    { "departure_signal_bt:", STRN("departure signal") },
+	    { "upperlight_sw:", STRN("upper headlight") },
+	    { "leftlight_sw:", STRN("left headlight") },
+	    { "rightlight_sw:", STRN("right headlight") },
+	    { "dimheadlights_sw:", STRN("headlights dimmer") },
+	    { "moderndimmer_sw:", STRN("headlights dimmer") },
+	    { "leftend_sw:", STRN("left marker light") },
+	    { "rightend_sw:", STRN("right marker light") },
+	    { "lights_sw:", STRN("light pattern") },
+	    { "rearupperlight_sw:", STRN("rear upper headlight") },
+	    { "rearleftlight_sw:", STRN("rear left headlight") },
+	    { "rearrightlight_sw:", STRN("rear right headlight") },
+	    { "rearleftend_sw:", STRN("rear left marker light") },
+	    { "rearrightend_sw:", STRN("rear right marker light") },
+	    { "compressor_sw:", STRN("compressor") },
+	    { "compressorlocal_sw:", STRN("local compressor") },
+	    { "converter_sw:", STRN("converter") },
+	    { "converterlocal_sw:", STRN("local converter") },
+	    { "converteroff_sw:", STRN("converter") },
+	    { "main_sw:", STRN("line breaker") },
+	    { "radio_sw:", STRN("radio") },
+	    { "radiochannel_sw:", STRN("radio channel") },
+	    { "radiochannelprev_sw:", STRN("radio channel") },
+	    { "radiochannelnext_sw:", STRN("radio channel") },
+	    { "radiotest_sw:", STRN("radiostop test") },
+	    { "radiostop_sw:", STRN("radiostop") },
+	    { "radiocall3_sw:", STRN("radio call 3") },
+	    { "radiovolume_sw:", STRN("radio volume") },
+	    { "radiovolumenext_sw:", STRN("radio volume") },
+	    { "radiovolumeprev_sw:", STRN("radio volume") },
+	    { "pantfront_sw:", STRN("pantograph A") },
+	    { "pantrear_sw:", STRN("pantograph B") },
+	    { "pantfrontoff_sw:", STRN("pantograph A") },
+	    { "pantrearoff_sw:", STRN("pantograph B") },
+	    { "pantalloff_sw:", STRN("all pantographs") },
+	    { "pantselected_sw:", STRN("selected pantograph") },
+	    { "pantselectedoff_sw:", STRN("selected pantograph") },
+	    { "pantselect_sw:", STRN("selected pantograph") },
+	    { "pantvalves_sw:", STRN("selected pantograph") },
+	    { "pantvalvesoff_bt:", STRN("all pantographs down") },
+	    { "pantvalvesupdate_bt:", STRN("selected pantographs up") },
+	    { "pantcompressor_sw:", STRN("pantograph compressor") },
+	    { "pantcompressorvalve_sw:", STRN("pantograph 3 way valve") },
+	    { "trainheating_sw:", STRN("heating") },
+	    { "signalling_sw:", STRN("braking indicator") },
+	    { "door_signalling_sw:", STRN("door locking") },
+	    { "nextcurrent_sw:", STRN("current indicator source") },
+	    { "instrumentlight_sw:", STRN("instrument light") },
+	    { "dashboardlight_sw:", STRN("dashboard light") },
+	    { "timetablelight_sw:", STRN("timetable light") },
+	    { "cablight_sw:", STRN("interior light") },
+	    { "cablightdim_sw:", STRN("interior light dimmer") },
+	    { "compartmentlights_sw:", STRN("compartment lights") },
+	    { "compartmentlightsoff_sw:", STRN("compartment lights") },
+	    { "compartmentlightson_sw:", STRN("compartment lights") },
+	    { "couplingdisconnect_sw:", STRN("coupling") },
+	    { "battery_sw:", STRN("battery") },
+	    { "batteryon_sw:", STRN("battery") },
+	    { "batteryoff_sw:", STRN("battery") },
+	    { "epbrake_bt:", STRN("ep brake") },
+	    { "relayreset1_bt:", STRN("relay reset") },
+	    { "relayreset2_bt:", STRN("relay reset") },
+	    { "relayreset3_bt:", STRN("relay reset") },
+	    { "springbrakeoff_bt:", STRN("spring brake") },
+	    { "springbrakeon_bt:", STRN("spring brake") },
+	    { "springbraketoggle_bt:", STRN("spring brake") },
+	    { "universalbrake1_bt:", STRN("train brake") },
+	    { "universalbrake2_bt:", STRN("train brake") },
+	    { "universalbrake3_bt:", STRN("train brake") },
+	    {"universal0:", STRN("interactive part")},
+	    {"universal1:", STRN("interactive part")},
+	    {"universal2:", STRN("interactive part")},
+	    {"universal3:", STRN("interactive part")},
+	    {"universal4:", STRN("interactive part")},
+	    {"universal5:", STRN("interactive part")},
+	    {"universal6:", STRN("interactive part")},
+	    {"universal7:", STRN("interactive part")},
+	    {"universal8:", STRN("interactive part")},
+	    {"universal9:", STRN("interactive part")},
+	    {"universal10:", STRN("interactive part")},
+	    {"universal11:", STRN("interactive part")},
+	    {"universal12:", STRN("interactive part")},
+	    {"universal13:", STRN("interactive part")},
+	    {"universal14:", STRN("interactive part")},
+	    {"universal15:", STRN("interactive part")},
+	    {"universal16:", STRN("interactive part")},
+	    {"universal17:", STRN("interactive part")},
+	    {"universal18:", STRN("interactive part")},
+	    {"universal19:", STRN("interactive part")},
+	    {"universal20:", STRN("interactive part")},
+	    {"universal21:", STRN("interactive part")},
+	    {"universal22:", STRN("interactive part")},
+	    {"universal23:", STRN("interactive part")},
+	    {"universal24:", STRN("interactive part")},
+	    {"universal25:", STRN("interactive part")},
+	    {"universal26:", STRN("interactive part")},
+	    {"universal27:", STRN("interactive part")},
+	    {"universal28:", STRN("interactive part")},
+	    {"universal29:", STRN("interactive part")},
+	    { "wipers_sw:", STRN("wipers mode selector") },
+	};
+
+	auto const it = cabcontrols_labels.find( Label );
+    return (
+	    it != cabcontrols_labels.end() ?
+	        lookup_s(it->second) :
+            "" );
+}
+
+const std::string& locale::coupling_name(int c)
+{
+	static std::unordered_map<coupling, std::string> coupling_names =
+	{
+	    { coupling::faux, STRN("faux") },
+	    { coupling::coupler, STRN("coupler") },
+	    { coupling::brakehose, STRN("brake hose") },
+	    { coupling::control, STRN("control") },
+	    { coupling::highvoltage, STRN("high voltage") },
+	    { coupling::gangway, STRN("gangway") },
+	    { coupling::mainhose, STRN("main hose") },
+	    { coupling::heating, STRN("heating") },
+	    { coupling::permanent, STRN("permanent") },
+        { coupling::power24v, STRN("power 24V") },
+        { coupling::power110v, STRN("power 110V") },
+        { coupling::power3x400v, STRN("power 3x400V") },
+	};
+
+	static std::string unknown(STRN("unknown"));
+
+	auto it = coupling_names.find(static_cast<coupling>(c));
+	if (it != coupling_names.end())
+		return lookup_s(it->second);
+	else
+		return lookup_s(unknown);
+}
+
+locale Translations;

utilities/translation.h

@@ -0,0 +1,38 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <string>
+#include <unordered_map>
+
+class locale {
+public:
+	void init();
+	std::string label_cab_control(const std::string &Label);
+	const std::string &coupling_name(int c);
+
+	const char* lookup_c(const char *msg, bool constant = false);
+	const std::string& lookup_s(const std::string &msg, bool constant = false);
+
+private:
+	bool parse_translation(std::istream &stream);
+	std::string parse_c_literal(const std::string &str);
+
+	std::unordered_map<std::string, std::string> lang_mapping;
+	std::unordered_map<const void*, const void*> pointer_cache;
+};
+
+extern locale Translations;
+
+#define STR(x) Translations.lookup_s(x, false)
+#define STR_C(x) Translations.lookup_c(x, true)
+#define STRN(x) x
+
+//find . -name "*.cpp" | xargs xgettext --from-code="UTF-8" -k --keyword=STR --keyword=STR_C --keyword=STRN

utilities/uart.cpp

@@ -0,0 +1,659 @@
+#include "stdafx.h"
+#include "uart.h"
+
+#include "Globals.h"
+#include "simulation.h"
+#include "Train.h"
+#include "parser.h"
+#include "Logs.h"
+#include "simulationtime.h"
+#include "application.h"
+
+const char* uart_baudrates_list[] = {
+    "300",
+    "1200",
+    "2400",
+    "4800",
+    "9600",
+    "19200",
+    "38400",
+    "57600",
+    "74880",
+    "115200",
+    "230400",
+    "250000",
+    "500000",
+    "1000000",
+    "2000000"
+};
+
+const size_t uart_baudrates_list_num = (
+        sizeof(uart_baudrates_list)/sizeof(uart_baudrates_list[0])
+    );
+
+void uart_status::reset_stats() {
+    packets_sent = 0;
+    packets_received = 0;
+}
+
+uart_status UartStatus;
+
+uart_input::uart_input()
+{
+    conf = Global.uart_conf;
+    uart_status *status = &UartStatus;
+
+    status->enabled = conf.enable;
+    status->port_name = conf.port;
+    status->baud = conf.baud;
+
+    const std::string baudStr = std::to_string(status->baud);
+
+    for(int i=0;i<uart_baudrates_list_num;i++) {
+        if(baudStr == uart_baudrates_list[i]) {
+            status->selected_baud_index = i;
+            status->active_port_index = i;
+            break;
+        }
+    }
+
+    old_packet.fill(0);
+    last_update = std::chrono::high_resolution_clock::now();
+    last_setup = std::chrono::high_resolution_clock::now();
+
+    find_ports();
+}
+
+void uart_input::find_ports() {
+    uart_status *status = &UartStatus;
+
+    struct sp_port **ports;
+    if (sp_list_ports(&ports) == SP_OK) {
+        status->available_ports.clear();
+        status->active_port_index = -1;
+        status->selected_port_index = -1;
+        for (int i=0; ports[i]; i++) {
+            std::string newport = std::string(sp_get_port_name(ports[i]));
+            status->available_ports.emplace_back(newport);
+            if(newport == status->port_name) {
+                status->active_port_index = i;
+                status->selected_port_index = i;
+            }
+        }
+        if(status->selected_port_index > status->available_ports.size()) {
+            status->selected_port_index = -1;
+        }
+        sp_free_port_list(ports);
+    } else {
+        WriteLog("uart: cannot read serial ports list");
+    }
+    last_port_find = std::chrono::high_resolution_clock::now();
+}
+
+bool uart_input::setup_port()
+{
+    uart_status *status = &UartStatus;
+
+    if(!port) {
+        find_ports();
+    }
+    if (port) {
+      sp_close(port);
+      sp_free_port(port);
+      port = nullptr;
+    }
+
+    last_setup = std::chrono::high_resolution_clock::now();
+
+    if (sp_get_port_by_name(status->port_name.c_str(), &port) != SP_OK) {
+        if(!error_notified) {
+            status->is_connected = false;
+            ErrorLog("uart: cannot find specified port '"+conf.port+"'");
+            find_ports();
+        }
+        error_notified = true;
+        return false;
+    }
+
+    if (sp_open(port, (sp_mode)(SP_MODE_READ | SP_MODE_WRITE)) != SP_OK) {
+        if(!error_notified) {
+            status->is_connected = false;
+            ErrorLog("uart: cannot open port '"+status->port_name+"'");
+            find_ports();
+        }
+        error_notified = true;
+        port = nullptr;
+        return false;
+    }
+
+	sp_port_config *config;
+
+    if (sp_new_config(&config) != SP_OK ||
+		sp_set_config_baudrate(config, status->baud) != SP_OK ||
+		sp_set_config_flowcontrol(config, SP_FLOWCONTROL_NONE) != SP_OK ||
+		sp_set_config_bits(config, 8) != SP_OK ||
+		sp_set_config_stopbits(config, 1) != SP_OK ||
+		sp_set_config_parity(config, SP_PARITY_NONE) != SP_OK ||
+		sp_set_config(port, config) != SP_OK) {
+        if(!error_notified) {
+            status->is_connected = false;
+            ErrorLog("uart: cannot set config");
+        }
+        error_notified = true;
+        port = nullptr;
+        find_ports();
+        return false;
+    }
+
+	sp_free_config(config);
+
+    if (sp_flush(port, SP_BUF_BOTH) != SP_OK) {
+        if(!error_notified) {
+            status->is_connected = false;
+            ErrorLog("uart: cannot flush");
+        }
+        error_notified = true;
+        port = nullptr;
+        find_ports();
+        return false;
+    }
+
+    if(error_notified || ! status->is_connected) {
+        error_notified = false;
+        ErrorLog("uart: connected to '"+status->port_name+"'");
+        status->reset_stats();
+        status->is_connected = true;
+        data_pending = false;
+    }
+
+    return true;
+}
+
+uart_input::~uart_input()
+{
+  if (!port)
+    return;
+
+	std::array<std::uint8_t, 52> buffer = { 0 };
+	buffer[0] = 0xEF;
+	buffer[1] = 0xEF;
+	buffer[2] = 0xEF;
+	buffer[3] = 0xEF;
+	sp_blocking_write(port, (void*)buffer.data(), buffer.size(), 0);
+	sp_drain(port);
+
+    sp_close(port);
+    sp_free_port(port);
+}
+
+namespace fs = std::filesystem;
+
+bool
+uart_input::recall_bindings() {
+
+    m_inputbindings.clear();
+	std::string filePath = "eu07_input-uart.ini";
+
+#ifdef _WIN32
+	if (const char *appdata = std::getenv("APPDATA"))
+	{
+		fs::path appPath = fs::path(appdata) / "MaSzyna" / "eu07_input-uart.ini";
+		if (fs::exists(appPath))
+			filePath = appPath.string();
+	}
+#else
+	if (const char *home = std::getenv("HOME"))
+	{
+		fs::path appPath = fs::path(home) / ".config" / "MaSzyna" / "eu07_input-uart.ini";
+		if (fs::exists(appPath))
+			filePath = appPath.string();
+	}
+#endif
+	cParser bindingparser(filePath.c_str(), cParser::buffer_FILE);
+	if (false == bindingparser.ok())
+	{
+        return false;
+    }
+
+    // build helper translation tables
+    std::unordered_map<std::string, user_command> nametocommandmap;
+    std::size_t commandid = 0;
+    for( auto const &description : simulation::Commands_descriptions ) {
+        nametocommandmap.emplace(
+            description.name,
+            static_cast<user_command>( commandid ) );
+        ++commandid;
+    }
+    std::unordered_map<std::string, input_type_t> nametotypemap {
+        { "impulse", input_type_t::impulse },
+        { "toggle", input_type_t::toggle },
+        { "value", input_type_t::value } };
+
+    // NOTE: to simplify things we expect one entry per line, and whole entry in one line
+    while( true == bindingparser.getTokens( 1, true, "\n\r" ) ) {
+
+        std::string bindingentry;
+        bindingparser >> bindingentry;
+        cParser entryparser( bindingentry );
+
+        if( true == entryparser.getTokens( 2, true, "\n\r\t " ) ) {
+
+            std::size_t bindingpin {};
+            std::string bindingtypename {};
+            entryparser
+                >> bindingpin
+                >> bindingtypename;
+
+            auto const typelookup = nametotypemap.find( bindingtypename );
+            if( typelookup == nametotypemap.end() ) {
+
+                WriteLog( "Uart binding for input pin " + std::to_string( bindingpin ) + " specified unknown control type, \"" + bindingtypename + "\"" );
+            }
+            else {
+
+                auto const bindingtype { typelookup->second };
+                std::array<user_command, 2> bindingcommands { user_command::none, user_command::none };
+                auto const commandcount { ( bindingtype == input_type_t::toggle ? 2 : 1 ) };
+                for( int commandidx = 0; commandidx < commandcount; ++commandidx ) {
+                    // grab command(s) associated with the input pin
+                    auto const bindingcommandname { entryparser.getToken<std::string>() };
+                    if( true == bindingcommandname.empty() ) {
+                        // no tokens left, may as well complain then call it a day
+                        WriteLog( "Uart binding for input pin " + std::to_string( bindingpin ) + " didn't specify associated command(s)" );
+                        break;
+                    }
+                    auto const commandlookup = nametocommandmap.find( bindingcommandname );
+                    if( commandlookup == nametocommandmap.end() ) {
+                        WriteLog( "Uart binding for input pin " + std::to_string( bindingpin ) + " specified unknown command, \"" + bindingcommandname + "\"" );
+                    }
+                    else {
+                        bindingcommands[ commandidx ] = commandlookup->second;
+                    }
+                }
+                // push the binding on the list
+                m_inputbindings.emplace_back( bindingpin, bindingtype, bindingcommands[ 0 ], bindingcommands[ 1 ] );
+            }
+        }
+    }
+
+    return true;
+}
+
+#define SPLIT_INT16(x) (uint8_t)(x), (uint8_t)((x) >> 8)
+
+void uart_input::poll()
+{
+    uart_status *status = &UartStatus;
+    auto now = std::chrono::high_resolution_clock::now();
+
+    /* handle baud change */
+    if(status->active_baud_index != status->selected_baud_index) {
+        status->baud = std::stoul(uart_baudrates_list[status->selected_baud_index]);
+        status->active_baud_index = status->selected_baud_index;
+        status->reset_stats();
+        status->is_connected = false;
+        setup_port();
+    }
+
+    /* handle port change */
+    if(status->available_ports.size() > 0 && status->selected_port_index >= 0 && status->active_port_index != status->selected_port_index) {
+        status->port_name = status->available_ports[status->selected_port_index];
+        status->active_port_index = status->selected_port_index;
+        status->reset_stats();
+        status->is_connected = false;
+        setup_port();
+    }
+
+    if (
+        (!port && std::chrono::duration<float>(now - last_port_find).count() > 1.0)
+        || (port && std::chrono::duration<float>(now - last_port_find).count() > 5.0)
+    ) {
+        find_ports();
+    }
+
+    if(!status->enabled) {
+        if(port) {
+          sp_close(port);
+          sp_free_port(port);
+          port = nullptr;
+        }
+        status->is_connected = false;
+        return;
+    }
+
+    if (std::chrono::duration<float>(now - last_update).count() < conf.updatetime)
+        return;
+    last_update = now;
+
+
+    /* if connection error occured, slow down reconnection tries */
+    if (!port && error_notified && std::chrono::duration<float>(now - last_setup).count() < 1.0) {
+        return;
+    }
+
+
+    if (!port) {
+      setup_port();
+      return;
+    }
+
+    auto const *t =simulation::Train;
+	if (!t)
+		return;
+
+    sp_return ret;
+
+    if ((ret = sp_input_waiting(port)) >= 20)
+    {
+        std::array<uint8_t, 20> tmp_buffer; // TBD, TODO: replace with vector of configurable size?
+        ret = sp_blocking_read(port, (void*)tmp_buffer.data(), tmp_buffer.size(), 0);
+
+        if (ret < 0) {
+          setup_port();
+          return;
+        }
+
+		bool sync;
+		if (tmp_buffer[0] != 0xEF || tmp_buffer[1] != 0xEF || tmp_buffer[2] != 0xEF || tmp_buffer[3] != 0xEF) {
+            UartStatus.is_synced = false;
+			if (conf.debug)
+				WriteLog("uart: bad sync");
+			sync = false;
+		}
+		else {
+            UartStatus.is_synced = true;
+			if (conf.debug)
+				WriteLog("uart: sync ok");
+			sync = true;
+		}
+
+		if (!sync) {
+			int sync_cnt = 0;
+			int sync_fail = 0;
+			unsigned char sc = 0;
+			while ((ret = sp_blocking_read(port, &sc, 1, 10)) >= 0) {
+				if (conf.debug)
+					WriteLog("uart: read byte: " + std::to_string((int)sc));
+				if (sc == 0xEF)
+					sync_cnt++;
+				else {
+					sync_cnt = 0;
+					sync_fail++;
+				}
+				if (sync_cnt == 4) {
+					if (conf.debug)
+						WriteLog("uart: synced, skipping one packet..");
+					ret = sp_blocking_read(port, (void*)tmp_buffer.data(), 16, 500);
+					  if (ret < 0) {
+              setup_port();
+              return;
+          }
+					data_pending = false;
+					break;
+				}
+				if (sync_fail >= 60) {
+					if (conf.debug)
+						WriteLog("uart: tired of trying");
+					break;
+				}
+			}
+			if (ret < 0) {
+        setup_port();
+      }
+			return;
+		}
+
+		std::array<uint8_t, 16> buffer;
+		memmove(&buffer[0], &tmp_buffer[4], 16);
+        UartStatus.packets_received++;
+
+		if (conf.debug)
+		{
+			char buf[buffer.size() * 3 + 1];
+			size_t pos = 0;
+			for (uint8_t b : buffer)
+				pos += sprintf(&buf[pos], "%02X ", b);
+			WriteLog("uart: rx: " + std::string(buf));
+		}
+
+		data_pending = false;
+
+        for (auto const &entry : m_inputbindings) {
+
+            auto const byte { std::get<std::size_t>( entry ) / 8 };
+            auto const bit { std::get<std::size_t>( entry ) % 8 };
+
+            bool const state { ( ( buffer[ byte ] & ( 1 << bit ) ) != 0 ) };
+            bool const changed { ( ( ( old_packet[ byte ] & ( 1 << bit ) ) != 0 ) != state ) };
+
+            if( false == changed ) { continue; }
+
+            auto const type { std::get<input_type_t>( entry ) };
+            auto const action { (
+                type != input_type_t::impulse ?
+                    GLFW_PRESS :
+                    ( state ?
+                        GLFW_PRESS :
+                        GLFW_RELEASE ) ) };
+
+            auto const command { (
+                type != input_type_t::toggle ?
+                    std::get<2>( entry ) :
+                    ( state ?
+                        std::get<2>( entry ) :
+                        std::get<3>( entry ) ) ) };
+
+            // TODO: pass correct entity id once the missing systems are in place
+			relay.post( command, 0, 0, action, 0 );
+        }
+
+        if( true == conf.mainenable ) {
+            // master controller
+			if (false == conf.mainpercentage) {
+				//old method for direct positions
+				relay.post(
+					user_command::mastercontrollerset,
+					buffer[6],
+					0,
+					GLFW_PRESS,
+					// TODO: pass correct entity id once the missing systems are in place
+					0);
+			}
+			else {
+				auto desiredpercent{ buffer[6] * 0.01 };
+				auto desiredposition{ desiredpercent > 0.01 ? 1 + ((simulation::Train->Occupied()->MainCtrlPosNo - 1) * desiredpercent) : buffer[6] };
+				relay.post(
+					user_command::mastercontrollerset,
+					desiredposition,
+					0,
+					GLFW_PRESS,
+					// TODO: pass correct entity id once the missing systems are in place
+					0);
+				simulation::Train->Occupied()->eimic_analog = desiredpercent;
+			}
+        }
+        if( true == conf.scndenable ) {
+            // second controller
+            relay.post(
+                user_command::secondcontrollerset,
+                static_cast<int8_t>(buffer[ 7 ]),
+                0,
+                GLFW_PRESS,
+                // TODO: pass correct entity id once the missing systems are in place
+			    0 );
+        }
+        if( true == conf.trainenable ) {
+            // train brake
+            double const position { (float)( ( (uint16_t)buffer[ 8 ] | ( (uint16_t)buffer[ 9 ] << 8 ) ) - conf.mainbrakemin ) / ( conf.mainbrakemax - conf.mainbrakemin ) };
+            relay.post(
+                user_command::trainbrakeset,
+                position,
+                0,
+                GLFW_PRESS,
+                // TODO: pass correct entity id once the missing systems are in place
+			    0 );
+        }
+        if( true == conf.localenable ) {
+            // independent brake
+            double const position { (float)( ( (uint16_t)buffer[ 10 ] | ( (uint16_t)buffer[ 11 ] << 8 ) ) - conf.localbrakemin ) / ( conf.localbrakemax - conf.localbrakemin ) };
+            relay.post(
+                user_command::independentbrakeset,
+                position,
+                0,
+                GLFW_PRESS,
+                // TODO: pass correct entity id once the missing systems are in place
+			    0 );
+        }
+        if( true == conf.radiochannelenable ) {
+            relay.post(
+                user_command::radiochannelset,
+                static_cast<int8_t>(buffer[12] & 0xF),
+                0,
+                GLFW_PRESS,
+                0
+            );
+        }
+        if( true == conf.radiovolumeenable ) {
+            int8_t requested_volume = static_cast<int8_t>((buffer[12] & 0xF0) >> 4);
+            relay.post(
+                user_command::radiovolumeset,
+                requested_volume == 0xF ? 1.0 : requested_volume * (1.0 / 15.0),
+                0,
+                GLFW_PRESS,
+                0
+            );
+        }
+
+        old_packet = buffer;
+    }
+
+  if (ret < 0) {
+    setup_port();
+    return;
+  }
+
+	if (!data_pending && sp_output_waiting(port) == 0)
+	{
+	    // TODO: ugly! move it into structure like input_bits
+        auto const trainstate = t->get_state();
+
+		SYSTEMTIME time = simulation::Time.data();
+		uint16_t tacho = Global.iPause ? 0 : (trainstate.velocity * conf.tachoscale);
+	    uint16_t tank_press = (uint16_t)std::min(conf.tankuart, trainstate.reservoir_pressure * 0.1f / conf.tankmax * conf.tankuart);
+	    uint16_t pipe_press = (uint16_t)std::min(conf.pipeuart, trainstate.pipe_pressure * 0.1f / conf.pipemax * conf.pipeuart);
+	    uint16_t brake_press = (uint16_t)std::min(conf.brakeuart, trainstate.brake_pressure * 0.1f / conf.brakemax * conf.brakeuart);
+        uint16_t pantograph_press = (uint16_t)std::min(conf.pantographuart, trainstate.pantograph_pressure * 0.1f / conf.pantographmax * conf.pantographuart );
+        uint16_t hv_voltage = (uint16_t)std::min(conf.hvuart, trainstate.hv_voltage / conf.hvmax * conf.hvuart);
+	    uint16_t current1 = (uint16_t)std::min(conf.currentuart, trainstate.hv_current[0] / conf.currentmax * conf.currentuart);
+	    uint16_t current2 = (uint16_t)std::min(conf.currentuart, trainstate.hv_current[1] / conf.currentmax * conf.currentuart);
+	    uint16_t current3 = (uint16_t)std::min(conf.currentuart, trainstate.hv_current[2] / conf.currentmax * conf.currentuart);
+	    uint32_t odometer = trainstate.distance * 10000.0;
+        uint16_t lv_voltage = (uint16_t)std::min( conf.lvuart, trainstate.lv_voltage / conf.lvmax * conf.lvuart );
+        if( trainstate.cab > 0 ) {
+            // NOTE: moving from a cab to engine room doesn't change cab indicator
+            m_trainstatecab = trainstate.cab - 1;
+        }
+
+	    std::array<uint8_t, 52> buffer {
+			//preamble
+			0xEF, 0xEF, 0xEF, 0xEF,
+			//byte 0-1 (counting without preamble)
+			SPLIT_INT16(tacho),
+            //byte 2
+			(uint8_t)(
+                trainstate.epbrake_enabled << 0
+              | trainstate.ventilator_overload << 1
+              | trainstate.motor_overload_threshold << 2
+			  | trainstate.emergencybrake << 3
+			  | trainstate.lockpipe << 4
+			  | trainstate.dir_forward << 5
+			  | trainstate.dir_backward << 6),
+            //byte 3
+			(uint8_t)(
+                trainstate.coupled_hv_voltage_relays << 0
+			  | trainstate.doorleftallowed << 1
+			  | trainstate.doorleftopened << 2
+			  | trainstate.doorrightallowed << 3
+			  | trainstate.doorrightopened << 4
+			  | trainstate.doorstepallowed << 5
+			  | trainstate.battery << 6
+			  | trainstate.radiomessageindicator << 7),
+            //byte 4
+			(uint8_t)(
+                trainstate.train_heating << 0
+              | trainstate.motor_resistors << 1
+              | trainstate.wheelslip << 2
+              | trainstate.alerter << 6
+              | trainstate.shp << 7),
+            //byte 5
+			(uint8_t)(
+                trainstate.motor_connectors << 0
+              | trainstate.converter_overload << 2
+              | trainstate.ground_relay << 3
+              | trainstate.motor_overload << 4
+              | trainstate.line_breaker << 5
+              | trainstate.compressor_overload << 6),
+            //byte 6
+			(uint8_t)(
+                m_trainstatecab << 2
+              | trainstate.recorder_braking << 3
+              | trainstate.recorder_power << 4
+			  | trainstate.radio_stop << 5
+			  | trainstate.springbrake_active << 6
+              | trainstate.alerter_sound << 7),
+            //byte 7-8
+	        SPLIT_INT16(brake_press),
+            //byte 9-10
+	        SPLIT_INT16(pipe_press),
+            //byte 11-12
+	        SPLIT_INT16(tank_press),
+            //byte 13-14
+	        SPLIT_INT16(hv_voltage),
+            //byte 15-16
+	        SPLIT_INT16(current1),
+            //byte 17-18
+	        SPLIT_INT16(current2),
+            //byte 19-20
+	        SPLIT_INT16(current3),
+			//byte 21-22
+			SPLIT_INT16((time.wYear - 1) * 12 + time.wMonth - 1),
+			//byte 23-24
+			SPLIT_INT16((time.wDay - 1) * 1440 + time.wHour * 60 + time.wMinute),
+			//byte 25-26
+			SPLIT_INT16(time.wSecond * 1000 + time.wMilliseconds),
+			//byte 27-30
+			SPLIT_INT16((uint16_t)odometer), SPLIT_INT16((uint16_t)(odometer >> 16)),
+			//byte 31-32
+			SPLIT_INT16(lv_voltage),
+			//byte 33
+			(uint8_t)trainstate.radio_channel,
+            //byte 34-35
+            SPLIT_INT16(pantograph_press),
+			//byte 36-47
+			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+	    };
+
+		if (conf.debug)
+		{
+			char buf[buffer.size() * 3 + 1];
+            buf[ buffer.size() * 3 ] = 0;
+			size_t pos = 0;
+			for (uint8_t b : buffer)
+				pos += sprintf(&buf[pos], "%02X ", b);
+			WriteLog("uart: tx: " + std::string(buf));
+		}
+
+	    ret = sp_blocking_write(port, (void*)buffer.data(), buffer.size(), 0);
+			if (ret < 0) {
+        setup_port();
+        return;
+      }
+        UartStatus.packets_sent++;
+
+		data_pending = true;
+	}
+}
+
+bool uart_input::is_connected() {
+    return (port != nullptr);
+}

utilities/uart.h

@@ -0,0 +1,110 @@
+#pragma once
+
+#include <libserialport.h>
+#include "command.h"
+
+extern const char* uart_baudrates_list[];
+extern const size_t uart_baudrates_list_num;
+
+class uart_status {
+    public:
+        std::string port_name = "";
+        std::vector<std::string> available_ports = {};
+        int selected_port_index = -1;
+        int selected_baud_index = -1;
+        int active_port_index = -1;
+        int active_baud_index = -1;
+        int baud = 0;
+        bool enabled = false;
+        bool is_connected = false;
+        bool is_synced = false;
+        unsigned long packets_sent = 0;
+        unsigned long packets_received = 0;
+
+        void reset_stats();
+};
+
+class uart_input
+{
+public:
+// types
+    struct conf_t {
+        bool enable = false;
+        std::string port;
+        int baud;
+        float updatetime;
+
+        float mainbrakemin = 0.0f;
+        float mainbrakemax = 65535.0f;
+        float localbrakemin = 0.0f;
+        float localbrakemax = 65535.0f;
+        float tankmax = 10.0f;
+        float tankuart = 65535.0f;
+        float pipemax = 10.0f;
+        float pipeuart = 65535.0f;
+        float brakemax = 10.0f;
+        float brakeuart = 65535.0f;
+        float pantographmax = 10.0f;
+        float pantographuart = 65535.0f;
+        float hvmax = 100000.0f;
+        float hvuart = 65535.0f;
+        float currentmax = 10000.0f;
+        float currentuart = 65535.0f;
+        float lvmax = 150.0f;
+        float lvuart = 65535.0f;
+		float tachoscale = 1.0f;
+
+        bool mainenable = true;
+        bool scndenable = true;
+        bool trainenable = true;
+        bool localenable = true;
+        bool radiovolumeenable = false;
+        bool radiochannelenable = false;
+
+        bool debug = false;
+
+		bool mainpercentage = false;
+    };
+
+// methods
+    uart_input();
+    ~uart_input();
+    bool
+        init() { return recall_bindings(); }
+    bool
+        recall_bindings();
+    void
+        poll();
+    bool
+        is_connected();
+
+private:
+// types
+    enum class input_type_t
+    {
+        toggle, // two commands, each mapped to one state; press event on state change
+        impulse, // one command; press event when set, release when cleared
+        value // one command; press event, value of specified byte passed as param1
+    };
+
+    using input_pin_t = std::tuple<std::size_t, input_type_t, user_command, user_command>;
+    using inputpin_sequence = std::vector<input_pin_t>;
+
+    bool setup_port();
+    void find_ports();
+
+// members
+    sp_port *port = nullptr;
+    inputpin_sequence m_inputbindings;
+    command_relay relay;
+    std::array<std::uint8_t, 16> old_packet; // TBD, TODO: replace with vector of configurable size?
+    std::chrono::time_point<std::chrono::high_resolution_clock> last_update;
+    std::chrono::time_point<std::chrono::high_resolution_clock> last_setup;
+    std::chrono::time_point<std::chrono::high_resolution_clock> last_port_find;
+    conf_t conf;
+	bool data_pending = false;
+    bool error_notified = false;
+    std::uint8_t m_trainstatecab { 0 }; // helper, keeps track of last active cab. 0: front cab, 1: rear cab
+};
+
+extern uart_status UartStatus;

utilities/utilities.cpp

@@ -0,0 +1,610 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+/*
+MaSzyna EU07 - SPKS
+Brakes.
+Copyright (C) 2007-2014 Maciej Cierniak
+*/
+#include "stdafx.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifndef WIN32
+#include <unistd.h>
+#endif
+
+#ifdef WIN32
+#define stat _stat
+#endif
+
+#include "utilities.h"
+#include "Globals.h"
+#include "parser.h"
+
+#include "Logs.h"
+
+bool DebugModeFlag = false;
+bool FreeFlyModeFlag = false;
+bool EditorModeFlag = false;
+bool DebugCameraFlag = false;
+bool DebugTractionFlag = false;
+
+double Max0R(double x1, double x2)
+{
+	if (x1 > x2)
+		return x1;
+	else
+		return x2;
+}
+
+double Min0R(double x1, double x2)
+{
+	if (x1 < x2)
+		return x1;
+	else
+		return x2;
+}
+
+// shitty replacement for Borland timestamp function
+// TODO: replace with something sensible
+std::string Now()
+{
+
+	std::time_t timenow = std::time(nullptr);
+	std::tm tm = *std::localtime(&timenow);
+	std::stringstream converter;
+	converter << std::put_time(&tm, "%c");
+	return converter.str();
+}
+
+// zwraca różnicę czasu
+// jeśli pierwsza jest aktualna, a druga rozkładowa, to ujemna oznacza opóżnienie
+// na dłuższą metę trzeba uwzględnić datę, jakby opóżnienia miały przekraczać 12h (towarowych)
+double CompareTime(double t1h, double t1m, double t2h, double t2m)
+{
+
+	if ((t2h < 0))
+		return 0;
+	else
+	{
+		auto t = (t2h - t1h) * 60 + t2m - t1m; // jeśli t2=00:05, a t1=23:50, to różnica wyjdzie ujemna
+		if ((t < -720)) // jeśli różnica przekracza 12h na minus
+			t = t + 1440; // to dodanie doby minut;else
+		if ((t > 720)) // jeśli przekracza 12h na plus
+			t = t - 1440; // to odjęcie doby minut
+		return t;
+	}
+}
+
+bool SetFlag(int &Flag, int const Value)
+{
+
+	if (Value > 0)
+	{
+		if (false == TestFlag(Flag, Value))
+		{
+			Flag |= Value;
+			return true; // true, gdy było wcześniej 0 i zostało ustawione
+		}
+	}
+	else if (Value < 0)
+	{
+		// Value jest ujemne, czyli zerowanie flagi
+		return ClearFlag(Flag, -Value);
+	}
+	return false;
+}
+
+bool ClearFlag(int &Flag, int const Value)
+{
+
+	if (true == TestFlag(Flag, Value))
+	{
+		Flag &= ~Value;
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+double Random(double a, double b)
+{
+	uint32_t val = Global.random_engine();
+	return interpolate(a, b, (double)val / Global.random_engine.max());
+}
+
+int RandomInt(int min, int max)
+{
+	static std::mt19937 engine(std::random_device{}());
+	std::uniform_int_distribution<int> dist(min, max);
+	return dist(engine);
+}
+
+std::string generate_uuid_v4()
+{
+	std::random_device rd;
+	std::mt19937 gen(rd());
+	std::uniform_int_distribution<int> dist(0, 255);
+
+	std::array<uint8_t, 16> bytes;
+	for (auto &b : bytes)
+		b = static_cast<uint8_t>(dist(gen));
+
+	// UUID v4 (RFC 4122)
+	bytes[6] = (bytes[6] & 0x0F) | 0x40;
+	bytes[8] = (bytes[8] & 0x3F) | 0x80;
+
+	char buf[37]; // 36 znaków + \0
+	std::snprintf(buf, sizeof(buf),
+	              "%02x%02x%02x%02x-"
+	              "%02x%02x-"
+	              "%02x%02x-"
+	              "%02x%02x-"
+	              "%02x%02x%02x%02x%02x%02x",
+	              bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7], bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
+
+	return std::string(buf);
+}
+
+double LocalRandom(double a, double b)
+{
+	uint32_t val = Global.local_random_engine();
+	return interpolate(a, b, (double)val / Global.random_engine.max());
+}
+
+bool FuzzyLogic(double Test, double Threshold, double Probability)
+{
+	if ((Test > Threshold) && (!DebugModeFlag))
+		return (Random() < Probability * Threshold * 1.0 / Test) /*im wiekszy Test tym wieksza szansa*/;
+	else
+		return false;
+}
+
+bool FuzzyLogicAI(double Test, double Threshold, double Probability)
+{
+	if ((Test > Threshold))
+		return (Random() < Probability * Threshold * 1.0 / Test) /*im wiekszy Test tym wieksza szansa*/;
+	else
+		return false;
+}
+
+std::string DUE(std::string s) /*Delete Before Equal sign*/
+{
+	// DUE = Copy(s, Pos("=", s) + 1, length(s));
+	return s.substr(s.find("=") + 1, s.length());
+}
+
+std::string DWE(std::string s) /*Delete After Equal sign*/
+{
+	size_t ep = s.find("=");
+	if (ep != std::string::npos)
+		// DWE = Copy(s, 1, ep - 1);
+		return s.substr(0, ep);
+	else
+		return s;
+}
+
+std::string ExchangeCharInString(std::string const &Source, char const From, char const To)
+{
+	std::string replacement;
+	replacement.reserve(Source.size());
+	std::for_each(std::begin(Source), std::end(Source),
+	              [&](char const idx)
+	              {
+		              if (idx != From)
+		              {
+			              replacement += idx;
+		              }
+		              else
+		              {
+			              replacement += To;
+		              }
+	              });
+
+	return replacement;
+}
+
+std::vector<std::string> &Split(const std::string &s, char delim, std::vector<std::string> &elems)
+{ // dzieli tekst na wektor tekstow
+
+	std::stringstream ss(s);
+	std::string item;
+	while (std::getline(ss, item, delim))
+	{
+		elems.push_back(item);
+	}
+	return elems;
+}
+
+std::vector<std::string> Split(const std::string &s, char delim)
+{ // dzieli tekst na wektor tekstow
+	std::vector<std::string> elems;
+	Split(s, delim, elems);
+	return elems;
+}
+
+std::vector<std::string> Split(const std::string &s)
+{ // dzieli tekst na wektor tekstow po białych znakach
+	std::vector<std::string> elems;
+	std::stringstream ss(s);
+	std::string item;
+	while (ss >> item)
+	{
+		elems.push_back(item);
+	}
+	return elems;
+}
+
+std::pair<std::string, int> split_string_and_number(std::string const &Key)
+{
+
+	auto const indexstart{Key.find_first_of("-1234567890")};
+	auto const indexend{Key.find_first_not_of("-1234567890", indexstart)};
+	if (indexstart != std::string::npos)
+	{
+		return {Key.substr(0, indexstart), std::stoi(Key.substr(indexstart, indexend - indexstart))};
+	}
+	return {Key, 0};
+}
+
+std::string to_string(int Value)
+{
+	std::ostringstream o;
+	o << Value;
+	return o.str();
+};
+
+std::string to_string(unsigned int Value)
+{
+	std::ostringstream o;
+	o << Value;
+	return o.str();
+};
+
+std::string to_string(double Value)
+{
+	std::ostringstream o;
+	o << Value;
+	return o.str();
+};
+
+std::string to_string(int Value, int width)
+{
+	std::ostringstream o;
+	o.width(width);
+	o << Value;
+	return o.str();
+};
+
+std::string to_string(double Value, int precision)
+{
+	std::ostringstream o;
+	o << std::fixed << std::setprecision(precision);
+	o << Value;
+	return o.str();
+};
+
+std::string to_string(double const Value, int const Precision, int const Width)
+{
+	std::ostringstream converter;
+	converter << std::setw(Width) << std::fixed << std::setprecision(Precision) << Value;
+	return converter.str();
+};
+
+std::string to_hex_str(int const Value, int const Width)
+{
+	std::ostringstream converter;
+	converter << "0x" << std::uppercase << std::setfill('0') << std::setw(Width) << std::hex << Value;
+	return converter.str();
+};
+
+bool string_ends_with(const std::string &string, const std::string &ending)
+{
+	if (string.length() < ending.length())
+		return false;
+
+	return string.compare(string.length() - ending.length(), ending.length(), ending) == 0;
+}
+
+bool string_starts_with(const std::string &string, const std::string &begin)
+{
+	if (string.length() < begin.length())
+		return false;
+
+	return string.compare(0, begin.length(), begin) == 0;
+}
+
+std::string const fractionlabels[] = {" ", "¹", "²", "³", "⁴", "⁵", "⁶", "⁷", "⁸", "⁹"};
+
+std::string to_minutes_str(float const Minutes, bool const Leadingzero, int const Width)
+{
+
+	float minutesintegral;
+	auto const minutesfractional{std::modf(Minutes, &minutesintegral)};
+	auto const width{Width - 1};
+	auto minutes = (std::string(width - 1, ' ') + (Leadingzero ? to_string(100 + minutesintegral).substr(1, 2) : to_string(minutesintegral, 0)));
+	return (minutes.substr(minutes.size() - width, width) + fractionlabels[static_cast<int>(std::floor(minutesfractional * 10 + 0.1))]);
+}
+
+int stol_def(const std::string &str, const int &DefaultValue)
+{
+
+	int result{DefaultValue};
+	std::stringstream converter;
+	converter << str;
+	converter >> result;
+	return result;
+}
+
+std::string ToLower(std::string const &text)
+{
+
+	auto lowercase{text};
+	std::transform(std::begin(text), std::end(text), std::begin(lowercase), [](unsigned char c) { return std::tolower(c); });
+	return lowercase;
+}
+
+std::string ToUpper(std::string const &text)
+{
+
+	auto uppercase{text};
+	std::transform(std::begin(text), std::end(text), std::begin(uppercase), [](unsigned char c) { return std::toupper(c); });
+	return uppercase;
+}
+
+// replaces polish letters with basic ascii
+void win1250_to_ascii(std::string &Input)
+{
+
+	std::unordered_map<char, char> const charmap{{165, 'A'}, {198, 'C'}, {202, 'E'}, {163, 'L'}, {209, 'N'}, {211, 'O'}, {140, 'S'}, {143, 'Z'}, {175, 'Z'},
+	                                             {185, 'a'}, {230, 'c'}, {234, 'e'}, {179, 'l'}, {241, 'n'}, {243, 'o'}, {156, 's'}, {159, 'z'}, {191, 'z'}};
+	std::unordered_map<char, char>::const_iterator lookup;
+	for (auto &input : Input)
+	{
+		if ((lookup = charmap.find(input)) != charmap.end())
+			input = lookup->second;
+	}
+}
+
+std::string win1250_to_utf8(const std::string &Input)
+{
+	std::unordered_map<char, std::string> const charmap{{165, "Ą"}, {198, "Ć"}, {202, "Ę"}, {163, "Ł"}, {209, "Ń"}, {211, "Ó"}, {140, "Ś"}, {143, "Ź"}, {175, "Ż"},
+	                                                    {185, "ą"}, {230, "ć"}, {234, "ę"}, {179, "ł"}, {241, "ń"}, {243, "ó"}, {156, "ś"}, {159, "ź"}, {191, "ż"}};
+	std::string output;
+	std::unordered_map<char, std::string>::const_iterator lookup;
+	for (auto &input : Input)
+	{
+		if ((lookup = charmap.find(input)) != charmap.end())
+			output += lookup->second;
+		else
+			output += input;
+	}
+	return output;
+}
+
+// Ra: tymczasowe rozwiązanie kwestii zagranicznych (czeskich) napisów
+char charsetconversiontable[] = "E?,?\"_++?%S<STZZ?`'\"\".--??s>stzz"
+                                " ^^L$A|S^CS<--RZo±,l'uP.,as>L\"lz"
+                                "RAAAALCCCEEEEIIDDNNOOOOxRUUUUYTB"
+                                "raaaalccceeeeiiddnnoooo-ruuuuyt?";
+
+// wycięcie liter z ogonkami
+std::string Bezogonkow(std::string Input, bool const Underscorestospaces)
+{
+
+	char const extendedcharsetbit{static_cast<char>(0x80)};
+	char const space{' '};
+	char const underscore{'_'};
+
+	for (auto &input : Input)
+	{
+		if (input & extendedcharsetbit)
+		{
+			input = charsetconversiontable[input ^ extendedcharsetbit];
+		}
+		else if (input < space)
+		{
+			input = space;
+		}
+		else if (Underscorestospaces && (input == underscore))
+		{
+			input = space;
+		}
+	}
+
+	return Input;
+}
+
+template <> bool extract_value(bool &Variable, std::string const &Key, std::string const &Input, std::string const &Default)
+{
+
+	auto value = extract_value(Key, Input);
+	if (false == value.empty())
+	{
+		// set the specified variable to retrieved value
+		Variable = (ToLower(value) == "yes");
+		return true; // located the variable
+	}
+	else
+	{
+		// set the variable to provided default value
+		if (false == Default.empty())
+		{
+			Variable = (ToLower(Default) == "yes");
+		}
+		return false; // couldn't locate the variable in provided input
+	}
+}
+
+bool FileExists(std::string const &Filename)
+{
+	return std::filesystem::exists(Filename);
+}
+
+std::pair<std::string, std::string> FileExists(std::vector<std::string> const &Names, std::vector<std::string> const &Extensions)
+{
+
+	for (auto const &name : Names)
+	{
+		for (auto const &extension : Extensions)
+		{
+			if (FileExists(name + extension))
+			{
+				return {name, extension};
+			}
+		}
+	}
+	// nothing found
+	return {{}, {}};
+}
+
+// returns time of last modification for specified file
+std::time_t last_modified(std::string const &Filename)
+{
+	std::string fn = Filename;
+	struct stat filestat;
+	if (::stat(fn.c_str(), &filestat) == 0)
+		return filestat.st_mtime;
+	else
+		return 0;
+}
+
+// potentially erases file extension from provided file name. returns: true if extension was removed, false otherwise
+bool erase_extension(std::string &Filename)
+{
+
+	auto const extensionpos{Filename.rfind('.')};
+
+	if (extensionpos == std::string::npos)
+	{
+		return false;
+	}
+
+	if (extensionpos != Filename.rfind("..") + 1)
+	{
+		// we can get extension for .mat or, in legacy files, some image format. just trim it and set it to material file extension
+		Filename.erase(extensionpos);
+		return true;
+	}
+	return false;
+}
+
+void erase_leading_slashes(std::string &Filename)
+{
+
+	while (Filename[0] == '/')
+	{
+		Filename.erase(0, 1);
+	}
+}
+
+// potentially replaces backward slashes in provided file path with unix-compatible forward slashes
+void replace_slashes(std::string &Filename)
+{
+
+	std::replace(std::begin(Filename), std::end(Filename), '\\', '/');
+}
+
+// returns potential path part from provided file name
+std::string substr_path(std::string const &Filename)
+{
+
+	return (Filename.rfind('/') != std::string::npos ? Filename.substr(0, Filename.rfind('/') + 1) : "");
+}
+
+// returns length of common prefix between two provided strings
+std::ptrdiff_t len_common_prefix(std::string const &Left, std::string const &Right)
+{
+
+	auto const *left{Left.data()};
+	auto const *right{Right.data()};
+	// compare up to the length of the shorter string
+	return (Right.size() <= Left.size() ? std::distance(right, std::mismatch(right, right + Right.size(), left).first) : std::distance(left, std::mismatch(left, left + Left.size(), right).first));
+}
+
+// returns true if provided string ends with another provided string
+bool ends_with(std::string_view String, std::string_view Suffix)
+{
+
+	return (String.size() >= Suffix.size()) && (0 == String.compare(String.size() - Suffix.size(), Suffix.size(), Suffix));
+}
+
+// returns true if provided string begins with another provided string
+bool starts_with(std::string_view const String, std::string_view Prefix)
+{
+
+	return (String.size() >= Prefix.size()) && (0 == String.compare(0, Prefix.size(), Prefix));
+}
+
+// returns true if provided string contains another provided string
+bool contains(std::string_view const String, std::string_view Substring)
+{
+
+	return (String.find(Substring) != std::string::npos);
+}
+
+bool contains(std::string_view const String, char Character)
+{
+
+	return (String.find(Character) != std::string::npos);
+}
+
+// helper, restores content of a 3d vector from provided input stream
+// TODO: review and clean up the helper routines, there's likely some redundant ones
+
+glm::dvec3 LoadPoint(cParser &Input)
+{
+	// pobranie współrzędnych punktu
+	glm::dvec3 point;
+	Input.getTokens(3);
+	Input >> point.x >> point.y >> point.z;
+	return point;
+}
+
+// extracts a group of tokens from provided data stream, returns one of them picked randomly
+std::string deserialize_random_set(cParser &Input, char const *Break)
+{
+
+	auto token{Input.getToken<std::string>(true, Break)};
+	std::replace(token.begin(), token.end(), '\\', '/');
+	if (token != "[")
+	{
+		// simple case, single token
+		return token;
+	}
+	// if instead of a single token we've encountered '[' this marks a beginning of a random set
+	// we retrieve all entries, then return a random one
+	std::vector<std::string> tokens;
+	while (((token = deserialize_random_set(Input, Break)) != "") && (token != "]"))
+	{
+		tokens.emplace_back(token);
+	}
+	if (false == tokens.empty())
+	{
+		std::shuffle(std::begin(tokens), std::end(tokens), Global.random_engine);
+		return tokens.front();
+	}
+	else
+	{
+		// shouldn't ever get here but, eh
+		return "";
+	}
+}
+
+int count_trailing_zeros(uint32_t val)
+{
+	int r = 0;
+
+	for (uint32_t shift = 1; !(val & shift); shift <<= 1)
+		r++;
+
+	return r;
+}

utilities/utilities.h

@@ -0,0 +1,462 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include "stdafx.h"
+
+#include <string>
+#include <fstream>
+#include <ctime>
+#include <vector>
+#include <sstream>
+#include "parser.h"
+
+/*rozne takie duperele do operacji na stringach w paszczalu, pewnie w delfi sa lepsze*/
+/*konwersja zmiennych na stringi, funkcje matematyczne, logiczne, lancuchowe, I/O etc*/
+
+template <typename T> T sign(T x)
+{
+	return x < static_cast<T>(0) ? static_cast<T>(-1) : (x > static_cast<T>(0) ? static_cast<T>(1) : static_cast<T>(0));
+}
+
+#define DegToRad(a) ((M_PI / 180.0) * (a)) //(a) w nawiasie, bo może być dodawaniem
+#define RadToDeg(r) ((180.0 / M_PI) * (r))
+
+#define szSceneryPath "scenery/"
+#define szTexturePath "textures/"
+#define szModelPath "models/"
+#define szDynamicPath "dynamic/"
+#define szSoundPath "sounds/"
+#define szDataPath "data/"
+
+#define MAKE_ID4(a, b, c, d) (((std::uint32_t)(d) << 24) | ((std::uint32_t)(c) << 16) | ((std::uint32_t)(b) << 8) | (std::uint32_t)(a))
+
+extern bool DebugModeFlag;
+extern bool FreeFlyModeFlag;
+extern bool EditorModeFlag;
+extern bool DebugCameraFlag;
+extern bool DebugTractionFlag;
+
+/*funkcje matematyczne*/
+double Max0R(double x1, double x2);
+double Min0R(double x1, double x2);
+
+inline double Sign(double x)
+{
+	return x >= 0 ? 1.0 : -1.0;
+}
+
+inline long Round(double const f)
+{
+	return (long)(f + 0.5);
+	// return lround(f);
+}
+
+double Random(double a, double b);
+int RandomInt(int min, int max);
+std::string generate_uuid_v4();
+double LocalRandom(double a, double b);
+
+inline double Random()
+{
+	return Random(0.0, 1.0);
+}
+
+inline double Random(double b)
+{
+	return Random(0.0, b);
+}
+
+inline double LocalRandom()
+{
+	return LocalRandom(0.0, 1.0);
+}
+
+inline double LocalRandom(double b)
+{
+	return LocalRandom(0.0, b);
+}
+
+inline double BorlandTime()
+{
+	auto timesinceepoch = std::time(nullptr);
+	return timesinceepoch / (24.0 * 60 * 60);
+	/*
+	    // std alternative
+	    auto timesinceepoch = std::chrono::system_clock::now().time_since_epoch();
+	    return std::chrono::duration_cast<std::chrono::seconds>( timesinceepoch ).count() / (24.0 * 60 * 60);
+	*/
+}
+
+std::string Now();
+
+double CompareTime(double t1h, double t1m, double t2h, double t2m);
+
+/*funkcje logiczne*/
+inline bool TestFlag(int const Flag, int const Value)
+{
+	return ((Flag & Value) == Value);
+}
+inline bool TestFlagAny(int const Flag, int const Value)
+{
+	return ((Flag & Value) != 0);
+}
+bool SetFlag(int &Flag, int const Value);
+bool ClearFlag(int &Flag, int const Value);
+
+bool FuzzyLogic(double Test, double Threshold, double Probability);
+/*jesli Test>Threshold to losowanie*/
+bool FuzzyLogicAI(double Test, double Threshold, double Probability);
+/*to samo ale zawsze niezaleznie od DebugFlag*/
+
+/*operacje na stringach*/
+std::string DUE(std::string s); /*Delete Until Equal sign*/
+std::string DWE(std::string s); /*Delete While Equal sign*/
+std::string ExchangeCharInString(std::string const &Source, char const From, char const To); // zamienia jeden znak na drugi
+std::vector<std::string> &Split(const std::string &s, char delim, std::vector<std::string> &elems);
+std::vector<std::string> Split(const std::string &s, char delim);
+// std::vector<std::string> Split(const std::string &s);
+std::pair<std::string, int> split_string_and_number(std::string const &Key);
+
+std::string to_string(int Value);
+std::string to_string(unsigned int Value);
+std::string to_string(int Value, int width);
+std::string to_string(double Value);
+std::string to_string(double Value, int precision);
+std::string to_string(double Value, int precision, int width);
+std::string to_hex_str(int const Value, int const width = 4);
+std::string to_minutes_str(float const Minutes, bool const Leadingzero, int const Width);
+
+inline std::string to_string(bool Value)
+{
+	return (Value == true ? "true" : "false");
+}
+
+template <typename Type_, glm::precision Precision_ = glm::defaultp> std::string to_string(glm::tvec3<Type_, Precision_> const &Value)
+{
+	return to_string(Value.x, 2) + ", " + to_string(Value.y, 2) + ", " + to_string(Value.z, 2);
+}
+
+template <typename Type_, glm::precision Precision_ = glm::defaultp> std::string to_string(glm::tvec4<Type_, Precision_> const &Value, int const Width = 2)
+{
+	return to_string(Value.x, Width) + ", " + to_string(Value.y, Width) + ", " + to_string(Value.z, Width) + ", " + to_string(Value.w, Width);
+}
+
+bool string_ends_with(std::string const &string, std::string const &ending);
+bool string_starts_with(std::string const &string, std::string const &begin);
+
+int stol_def(const std::string &str, const int &DefaultValue);
+
+std::string ToLower(std::string const &text);
+std::string ToUpper(std::string const &text);
+
+// replaces polish letters with basic ascii
+void win1250_to_ascii(std::string &Input);
+// TODO: unify with win1250_to_ascii()
+std::string Bezogonkow(std::string Input, bool const Underscorestospaces = false);
+
+std::string win1250_to_utf8(const std::string &input);
+
+inline std::string extract_value(std::string const &Key, std::string const &Input)
+{
+	// NOTE, HACK: the leading space allows to uniformly look for " variable=" substring
+	std::string const input{" " + Input};
+	std::string value;
+	auto lookup = input.find(" " + Key + "=");
+	if (lookup != std::string::npos)
+	{
+		value = input.substr(input.find_first_not_of(' ', lookup + Key.size() + 2));
+		lookup = value.find(' ');
+		if (lookup != std::string::npos)
+		{
+			// trim everything past the value
+			value.erase(lookup);
+		}
+	}
+	return value;
+}
+
+template <typename Type_> bool extract_value(Type_ &Variable, std::string const &Key, std::string const &Input, std::string const &Default)
+{
+
+	auto value = extract_value(Key, Input);
+	if (false == value.empty())
+	{
+		// set the specified variable to retrieved value
+		std::stringstream converter;
+		converter << value;
+		converter >> Variable;
+		return true; // located the variable
+	}
+	else
+	{
+		// set the variable to provided default value
+		if (false == Default.empty())
+		{
+			std::stringstream converter;
+			converter << Default;
+			converter >> Variable;
+		}
+		return false; // couldn't locate the variable in provided input
+	}
+}
+
+template <> bool extract_value(bool &Variable, std::string const &Key, std::string const &Input, std::string const &Default);
+
+bool FileExists(std::string const &Filename);
+
+std::pair<std::string, std::string> FileExists(std::vector<std::string> const &Names, std::vector<std::string> const &Extensions);
+
+// returns time of last modification for specified file
+std::time_t last_modified(std::string const &Filename);
+
+// potentially erases file extension from provided file name. returns: true if extension was removed, false otherwise
+bool erase_extension(std::string &Filename);
+
+// potentially erase leading slashes from provided file path
+void erase_leading_slashes(std::string &Filename);
+
+// potentially replaces backward slashes in provided file path with unix-compatible forward slashes
+void replace_slashes(std::string &Filename);
+
+// returns potential path part from provided file name
+std::string substr_path(std::string const &Filename);
+
+// returns common prefix of two provided strings
+std::ptrdiff_t len_common_prefix(std::string const &Left, std::string const &Right);
+
+// returns true if provided string ends with another provided string
+bool ends_with(std::string_view String, std::string_view Suffix);
+// returns true if provided string begins with another provided string
+bool starts_with(std::string_view String, std::string_view Prefix);
+// returns true if provided string contains another provided string
+bool contains(std::string_view const String, std::string_view Substring);
+bool contains(std::string_view const String, char Character);
+
+template <typename Type_> void SafeDelete(Type_ &Pointer)
+{
+	delete Pointer;
+	Pointer = nullptr;
+}
+
+template <typename Type_> void SafeDeleteArray(Type_ &Pointer)
+{
+	delete[] Pointer;
+	Pointer = nullptr;
+}
+
+template <typename Type_> Type_ is_equal(Type_ const &Left, Type_ const &Right, Type_ const Epsilon = 1e-5)
+{
+
+	if (Epsilon != 0)
+	{
+		return glm::epsilonEqual(Left, Right, Epsilon);
+	}
+	else
+	{
+		return (Left == Right);
+	}
+}
+
+template <typename Type_> Type_ clamp(Type_ const Value, Type_ const Min, Type_ const Max)
+{
+
+	Type_ value = Value;
+	if (value < Min)
+	{
+		value = Min;
+	}
+	if (value > Max)
+	{
+		value = Max;
+	}
+	return value;
+}
+
+// keeps the provided value in specified range 0-Range, as if the range was circular buffer
+template <typename Type_> Type_ clamp_circular(Type_ Value, Type_ const Range = static_cast<Type_>(360))
+{
+
+	Value -= Range * (int)(Value / Range); // clamp the range to 0-360
+	if (Value < Type_(0))
+		Value += Range;
+
+	return Value;
+}
+
+// rounds down provided value to nearest power of two
+template <typename Type_> Type_ clamp_power_of_two(Type_ Value, Type_ const Min = static_cast<Type_>(1), Type_ const Max = static_cast<Type_>(16384))
+{
+
+	Type_ p2size{Min};
+	Type_ size;
+	while ((p2size <= Max) && (p2size <= Value))
+	{
+		size = p2size;
+		p2size = p2size << 1;
+	}
+	return size;
+}
+
+template <typename Type_> Type_ quantize(Type_ const Value, Type_ const Step)
+{
+
+	return (Step * std::round(Value / Step));
+}
+
+template <typename Type_> Type_ min_speed(Type_ const Left, Type_ const Right)
+{
+
+	if (Left == Right)
+	{
+		return Left;
+	}
+
+	return std::min((Left != -1 ? Left : std::numeric_limits<Type_>::max()), (Right != -1 ? Right : std::numeric_limits<Type_>::max()));
+}
+
+template <typename Type_> Type_ interpolate(Type_ const &First, Type_ const &Second, float const Factor)
+{
+
+	return static_cast<Type_>((First * (1.0f - Factor)) + (Second * Factor));
+}
+
+template <typename Type_> Type_ interpolate(Type_ const &First, Type_ const &Second, double const Factor)
+{
+
+	return static_cast<Type_>((First * (1.0 - Factor)) + (Second * Factor));
+}
+
+template <typename Type_> Type_ smoothInterpolate(Type_ const &First, Type_ const &Second, double Factor)
+{
+	// Apply smoothing (ease-in-out quadratic)
+	Factor = Factor * Factor * (3 - 2 * Factor);
+
+	return static_cast<Type_>((First * (1.0 - Factor)) + (Second * Factor));
+}
+
+// tests whether provided points form a degenerate triangle
+template <typename VecType_> bool degenerate(VecType_ const &Vertex1, VecType_ const &Vertex2, VecType_ const &Vertex3)
+{
+
+	//  degenerate( A, B, C, minarea ) = ( ( B - A ).cross( C - A ) ).lengthSquared() < ( 4.0f * minarea * minarea );
+	return (glm::length2(glm::cross(Vertex2 - Vertex1, Vertex3 - Vertex1)) == 0.0);
+}
+
+// calculates bounding box for provided set of points
+template <class Iterator_, class VecType_> void bounding_box(VecType_ &Mincorner, VecType_ &Maxcorner, Iterator_ First, Iterator_ Last)
+{
+
+	Mincorner = VecType_(std::numeric_limits<typename VecType_::value_type>::max());
+	Maxcorner = VecType_(std::numeric_limits<typename VecType_::value_type>::lowest());
+
+	std::for_each(First, Last,
+	              [&](typename Iterator_::value_type &point)
+	              {
+		              Mincorner = glm::min(Mincorner, VecType_{point});
+		              Maxcorner = glm::max(Maxcorner, VecType_{point});
+	              });
+}
+
+// finds point on specified segment closest to specified point in 3d space. returns: point on segment as value in range 0-1 where 0 = start and 1 = end of the segment
+template <typename VecType_> typename VecType_::value_type nearest_segment_point(VecType_ const &Segmentstart, VecType_ const &Segmentend, VecType_ const &Point)
+{
+
+	auto const v = Segmentend - Segmentstart;
+	auto const w = Point - Segmentstart;
+
+	auto const c1 = glm::dot(w, v);
+	if (c1 <= 0.0)
+	{
+		return 0.0;
+	}
+	auto const c2 = glm::dot(v, v);
+	if (c2 <= c1)
+	{
+		return 1.0;
+	}
+	return c1 / c2;
+}
+
+glm::dvec3 LoadPoint(class cParser &Input);
+
+// extracts a group of tokens from provided data stream
+std::string deserialize_random_set(cParser &Input, char const *Break = "\n\r\t ;");
+
+int count_trailing_zeros(uint32_t val);
+
+// extracts a group of <key, value> pairs from provided data stream
+// NOTE: expects no more than single pair per line
+template <typename MapType_> void deserialize_map(MapType_ &Map, cParser &Input)
+{
+
+	while (Input.ok() && !Input.eof())
+	{
+		auto const key{Input.getToken<typename MapType_::key_type>(false)};
+		auto const value{Input.getToken<typename MapType_::mapped_type>(false, "\n")};
+		Map.emplace(key, value);
+	}
+}
+
+namespace threading
+{
+
+// simple POD pairing of a data item and a mutex
+// NOTE: doesn't do any locking itself, it's merely for cleaner argument arrangement and passing
+template <typename Type_> struct lockable
+{
+
+	Type_ data;
+	std::mutex mutex;
+};
+
+// basic wrapper simplifying use of std::condition_variable for most typical cases.
+// has its own mutex and secondary variable to ignore spurious wakeups
+class condition_variable
+{
+
+  public:
+	// methods
+	void wait()
+	{
+		std::unique_lock<std::mutex> lock(m_mutex);
+		m_condition.wait(lock, [this]() { return m_spurious == false; });
+	}
+	template <class Rep_, class Period_> void wait_for(const std::chrono::duration<Rep_, Period_> &Time)
+	{
+		std::unique_lock<std::mutex> lock(m_mutex);
+		m_condition.wait_for(lock, Time, [this]() { return m_spurious == false; });
+	}
+	void notify_one()
+	{
+		spurious(false);
+		m_condition.notify_one();
+	}
+	void notify_all()
+	{
+		spurious(false);
+		m_condition.notify_all();
+	}
+	void spurious(bool const Spurious)
+	{
+		std::lock_guard<std::mutex> lock(m_mutex);
+		m_spurious = Spurious;
+	}
+
+  private:
+	// members
+	mutable std::mutex m_mutex;
+	std::condition_variable m_condition;
+	bool m_spurious{true};
+};
+
+} // namespace threading
+
+//---------------------------------------------------------------------------