control messaging system, keyboard and gamepad inputs

gamepadinput.h

@@ -0,0 +1,86 @@
+/*
+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 <vector>
+#include "command.h"
+
+class gamepad_input {
+
+public:
+// constructors
+    gamepad_input();
+
+// methods
+    // checks state of the controls and sends issued commands
+    bool
+        init();
+    void
+        poll();
+
+private:
+// types
+    enum gamepad_button {
+        a,
+        b,
+        x,
+        y,
+        left_shoulder,
+        right_shoulder,
+        back,
+        start,
+        left_sticker,
+        right_sticker,
+        dpad_up,
+        dpad_right,
+        dpad_down,
+        dpad_left
+    };
+    enum gamepad_axes {
+        leftstick_x,
+        leftstick_y,
+        rightstick_x,
+        rightstick_y,
+        lefttrigger,
+        righttrigger
+    };
+    enum class control_mode {
+        entity = -1,
+        vehicle_mastercontroller,
+        vehicle_trainbrake,
+        vehicle_secondarycontroller,
+        vehicle_independentbrake
+    };
+    typedef std::vector<float> float_sequence;
+    typedef std::vector<char> char_sequence;
+    typedef std::vector< std::pair< user_command, user_command > > commandpair_sequence;
+
+// methods
+    void on_button( gamepad_button const Button, int const Action );
+    void process_axes( glm::vec2 Leftstick, glm::vec2 const &Rightstick, glm::vec2 const &Triggers );
+    void process_axis( float const Value, float const Previousvalue, float const Multiplier, user_command Command, std::uint16_t const Recipient );
+    void process_axis( float const Value, float const Previousvalue, float const Multiplier, user_command Command1, user_command Command2, /*user_command Command3,*/ std::uint16_t const Recipient );
+    void process_mode( float const Value, std::uint16_t const Recipient );
+
+// members
+    command_relay m_relay;
+    float_sequence m_axes;
+    char_sequence m_buttons;
+    int m_deviceid{ -1 };
+    control_mode m_mode{ control_mode::entity };
+    commandpair_sequence m_modecommands; // sets of commands issued depending on the active control mode
+    float m_deadzone{ 0.15f }; // TODO: allow to configure this
+    glm::vec2 m_leftstick;
+    glm::vec2 m_rightstick;
+    glm::vec2 m_triggers;
+    double m_modeaccumulator; // used to throttle command input rate for vehicle controls
+};
+
+//---------------------------------------------------------------------------