Error maxxing

src/infrastructure_helpers.odin

@@ -99,7 +99,7 @@ delete_entity :: proc(self: ^Simulator, entity_index: u32, type: common.Entity)
 }
 
 // Returns a random node that has no cars on it
-get_free_node :: proc(self: ^Simulator) -> u32 {
+get_free_node :: proc(self: ^Simulator) -> Maybe(u32) {
 	car_occupied_nodes: [dynamic]u32
 	
 	for car in self.cars {
@@ -110,6 +110,8 @@ get_free_node :: proc(self: ^Simulator) -> u32 {
 		append(&car_occupied_nodes, node)
 	}
 	
+	if len(car_occupied_nodes) == len(self.nodes) do return nil
+	
 	for {
 		node := rand.uint32_max(u32(len(self.nodes)))