Initial commit

modules/world/world_terrain_lod.h

@@ -0,0 +1,59 @@
+#ifndef WORLD_TERRAIN_LOD_H
+#define WORLD_TERRAIN_LOD_H
+#include <core/hash_map.h>
+#include <core/reference.h>
+#include <scene/resources/mesh.h>
+#include <scene/resources/world.h>
+#include <scene/resources/packed_scene.h>
+#include <modules/voxel/util/math/vector3i.h>
+#include "world_chunk.h"
+#include "terrain_object.h"
+#include "new_point.h"
+#include "direct_lod_multimesh.h"
+class LodMultiMesh3D;
+class WorldChunk;
+class WorldTerrainLod {
+public:
+	List<LodMultiMesh3D *> meshes;
+private:
+	HashMap<Vector3i, LodMultiMesh3D *, Vector3iHasher> mesh_h;
+	int min_dist, max_dist;
+	Ref<World> gworld;
+	float density_range = 3.0f;
+public:
+	void set_world(Ref<World> world);
+	void init_lod(int mind, int maxd,
+			float density_range);
+	void create_chunk(const WorldChunk *chunk, const List<TerrainObject> &obj_list);
+	void update();
+	inline bool has(const Vector3i *loc) const
+	{
+		return mesh_h.has(*loc);
+	}
+	void cleanup(const Transform &vxform);
+	bool valid_org(const Transform &vxform, const Vector3 &org, float margin) const;
+	void update_visibility(const Transform &vxform);
+	inline float get_density_range() const
+	{
+		return density_range;
+	}
+	inline bool in_range(float d) const
+	{
+		if (d >= (float)min_dist && d < (float)max_dist)
+			return true;
+		return false;
+	}
+	inline void erase(const Vector3i &key)
+	{
+		if (mesh_h.has(key)) {
+			LodMultiMesh3D *v = mesh_h[key];
+			v->hide();
+			v->set_world(NULL);
+			memfree(v);
+			meshes.erase(v);
+			mesh_h.erase(key);
+		}
+	}
+};
+#endif
+