Added traffic

modules/world/traffic.h

@@ -0,0 +1,45 @@
+#include <modules/world/roads.h>
+class Traffic: public Object {
+	GDCLASS(Traffic, Object);
+protected:
+	static void _bind_methods();
+	Vector<Ref<PackedScene> > scenes;
+	int state;
+	List<Node *> spawner_list;
+	List<Node *>::Element *spawner_e;
+	float max_spawn_distance;
+	float min_spawn_distance;
+	Vector3 delete_distance;
+	Ref<RandomNumberGenerator> rnd;
+	float list_cooldown, spawn_cooldown;
+	RID immediate, instance;
+	Ref<SpatialMaterial> debug_mat;
+	bool debug;
+
+	void debug_traffic();
+	void control_traffic();
+public:
+	Traffic();
+	~Traffic();
+	void add_traffic_vehicle(Ref<PackedScene> scene);
+	void remove_traffic_vehicle(Ref<PackedScene> scene);
+	void idle_runner();
+
+	inline void set_seed(int seed)
+	{
+		rnd->set_seed(seed);
+	}
+	inline int get_state()
+	{
+		return rnd->get_state();
+	}
+	inline void set_state(int seed)
+	{
+		rnd->set_state(seed);
+	}
+
+	static Traffic *get_singleton();
+	static void create_singleton();
+	static void destroy_singleton();
+};
+