New world format, fixes

src/world/LevelEvents.h

@@ -0,0 +1,23 @@
+#ifndef WORLD_LEVEL_EVENTS_H_
+#define WORLD_LEVEL_EVENTS_H_
+
+#include <functional>
+#include <vector>
+#include <unordered_map>
+
+class Chunk;
+
+enum lvl_event_type {
+	EVT_CHUNK_HIDDEN,
+};
+
+typedef std::function<void(lvl_event_type, Chunk*)> chunk_event_func;
+
+class LevelEvents {
+	std::unordered_map<lvl_event_type, std::vector<chunk_event_func>> chunk_callbacks;
+public:
+	void listen(lvl_event_type type, chunk_event_func func);
+	void trigger(lvl_event_type type, Chunk* chunk);
+};
+
+#endif // WORLD_LEVEL_EVENTS_H_