start without scenery flag

maj0sted/include/maj0sted/editor/join.hpp

@@ -0,0 +1,61 @@
+#pragma once
+
+// TYMCZASOWA ZASLEPKA. Modul scalania koncow (plan_join / join_ends) nie zostal nigdy
+// zacommitowany: commit 4ddfeb02 dopisal `src/editor/join.cpp` do CMakeLists i `#include` w
+// planpanel.cpp, ale samych plikow nie ma ani w drzewie, ani w historii, ani w stashach. Bez
+// tego naglowka i join.cpp branch sie nie kompiluje wcale. Ta zaslepka odtwarza dokladnie to
+// API, ktorego uzywa panel planu, i mowi "niedostepne" - zeby reszta edytora dala sie uruchomic.
+// Do zastapienia prawdziwym rozwiazaniem geometrii (luk-prosta-luk) i chirurgia dokumentu.
+
+#include <string>
+#include <vector>
+
+#include "maj0sted/domain/geometry/segment_layout.hpp"  // Pose
+#include "maj0sted/editor/model.hpp"
+#include "maj0sted/editor/solution.hpp"
+
+namespace maj0sted::editor {
+
+/// Co stanelo miedzy dwoma koncami.
+enum class JoinKind {
+    None,
+    Straight,
+    Arc,
+    ArcLineArc,
+    ArcArc,
+};
+
+[[nodiscard]] const char* join_kind_name(JoinKind kind);
+
+/// Czym wolno gietc to, co lezy miedzy koncami.
+struct JoinSettings {
+    double radius{300.0};
+};
+
+/// Propozycja, przed tknieciem dokumentu.
+struct JoinPlan {
+    bool ok{false};
+    std::string why{};
+    JoinKind kind{JoinKind::None};
+    std::vector<Element> elements{};
+    double tightest{0.0};
+};
+
+[[nodiscard]] JoinPlan plan_join(const domain::geometry::Pose& leaving,
+                                 const domain::geometry::Pose& arriving,
+                                 const JoinSettings& settings);
+
+/// Co scalenie kosztowalo.
+struct JoinReport {
+    bool ok{false};
+    std::string why{};
+    JoinPlan join{};
+    int fused{0};
+    int turnouts{0};
+    bool reversed{false};
+};
+
+[[nodiscard]] JoinReport join_ends(Document& document, const Solution& solution, TrackId a,
+                                   int a_end, TrackId b, int b_end, const JoinSettings& settings);
+
+}  // namespace maj0sted::editor

maj0sted/src/editor/join.cpp

@@ -0,0 +1,51 @@
+// TYMCZASOWA ZASLEPKA - patrz komentarz w join.hpp.
+
+#include "maj0sted/editor/join.hpp"
+
+namespace maj0sted::editor {
+
+namespace {
+constexpr const char* kMissing = "scalanie koncow niedostepne: brak modulu join";
+}  // namespace
+
+const char* join_kind_name(JoinKind kind) {
+    switch (kind) {
+        case JoinKind::Straight:
+            return "prosta";
+        case JoinKind::Arc:
+            return "luk";
+        case JoinKind::ArcLineArc:
+            return "luk-prosta-luk";
+        case JoinKind::ArcArc:
+            return "luk-luk";
+        case JoinKind::None:
+            break;
+    }
+    return "nic";
+}
+
+JoinPlan plan_join(const domain::geometry::Pose& leaving, const domain::geometry::Pose& arriving,
+                   const JoinSettings& settings) {
+    (void)leaving;
+    (void)arriving;
+    (void)settings;
+    JoinPlan plan;
+    plan.why = kMissing;
+    return plan;
+}
+
+JoinReport join_ends(Document& document, const Solution& solution, TrackId a, int a_end, TrackId b,
+                     int b_end, const JoinSettings& settings) {
+    (void)document;
+    (void)solution;
+    (void)a;
+    (void)a_end;
+    (void)b;
+    (void)b_end;
+    (void)settings;
+    JoinReport report;
+    report.why = kMissing;
+    return report;
+}
+
+}  // namespace maj0sted::editor

simulation/simulationstateserializer.cpp

@@ -76,8 +76,16 @@ state_serializer::deserialize_begin( std::string const &Scenariofile ) {
     }
     scene::Groups.create();
 
-	if( false == state->input.ok() )
-		throw invalid_scenery_exception();
+	if( false == state->input.ok() ) {
+		if( false == Global.editor_startup ) {
+			throw invalid_scenery_exception();
+		}
+		// the editor is allowed to work on ground that has no scenery file yet: starting with -editor,
+		// or beginning a new map, names a file which will only exist once it gets saved. an unreadable
+		// scenery means an empty world here, not a failed load
+		WriteLog( "Scenery \"" + Scenariofile + "\" not found, the editor starts on empty ground" );
+		state->blank = true;
+	}
 
 	// prepare deserialization function table
 	// since all methods use the same objects, we can have simple, hard-coded binds or lambdas for the task
@@ -164,6 +172,7 @@ state_serializer::deserialize_continue(std::shared_ptr<deserializer_state> state
 
 	if( true == Global.file_binary_terrain
      && false == state->scratchpad.binary.terrain
+	 && false == state->blank
 	 && state->scenariofile != "$.scn" ) {
 		// if we didn't find usable binary version of the scenario files, create them now for future use
 		// as long as the scenario file wasn't rainsted-created base file override

simulation/simulationstateserializer.h

@@ -16,6 +16,8 @@ namespace simulation {
 
 struct deserializer_state {
 	std::string scenariofile;
+	// the named scenery has no file on disk: the world is empty, so there's nothing to compile to SBT
+	bool blank{ false };
 	cParser input;
 	scene::scratch_data scratchpad;
 	using deserializefunctionbind = std::function<void()>;