switch state visualisation, semaphore tracking for map purposes

widgets/map_objects.h

@@ -0,0 +1,22 @@
+#include "simulation.h"
+#include "event.h"
+#include "scene.h"
+
+namespace map {
+
+    // semaphore description (only for minimap purposes)
+    struct semaphore {
+		std::string name;
+		glm::vec3 location;
+
+		std::vector<basic_event *> events;
+	};
+
+	// switch description (only for minimap purposes)
+	struct track_switch {
+		glm::vec3 location;
+	};
+
+	extern std::vector<semaphore> Semaphores;
+	extern std::vector<track_switch> Switches;
+}