feat(scenery): models laid along curves (sweep nodes), bent to follow the paths or repeated along them, loaded and saved with the scenery; trainsets put on a path while the simulation runs; trainset turned around by reversed after its header: the first vehicle stays at the offset and leads towards point 1, the rest stands behind it; launcher keeps reversed trainsets and can turn one around; memory cells saved with the new name of the path they name; events tell their targets and the events of a multiple event; renderer tells whether the cursor is over a surface; vehicle placed in the editor entered when the driving goes on

utilities/Classes.h

@@ -45,6 +45,8 @@ struct light_array;
 class particle_manager;
 class road_node; // kawałek drogi, z którego powstają pasy ruchu
 class road_table;
+class sweep_node; // model ułożony wzdłuż krzywej: wygięty albo powtarzany
+class sweep_table;
 class junction_node;
 class junction_table;
 class roadpoint_node; // przejazd kolejowy albo miejsce, w którym pojazdy drogowe się pojawiają lub znikają