feat: add collisions

src/track.py

@@ -46,3 +46,9 @@ class Track:
     def render(self, surf: pygame.Surface, camera: Camera):
         for object in self.objects:
             object.render(surf, camera)
+
+    def get_collision_polygons(self) -> list[list[Vec]]:
+        polygons: list[list[Vec]] = []
+        for obj in self.objects:
+            polygons.extend(obj.get_collision_polygons())
+        return polygons