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#ifndef __KOOPATLAS_MAPDATA_H
#define __KOOPATLAS_MAPDATA_H

#include <game.h>

// forward declarations
struct dKPLayer_s;

/******************************************************************************
 * Doodads
 ******************************************************************************/
struct dKPDoodad_s {
	struct animation_s {
		enum LoopTypes {
			CONTIGUOUS, LOOP, REVERSE_LOOP
		};

		enum CurveTypes {
			LINEAR, SIN, COS
		};

		enum AnimTypes {
			X_POS, Y_POS, ANGLE, X_SCALE, Y_SCALE, OPACITY
		};

		LoopTypes loop;
		CurveTypes curve;
		int frameCount;
		AnimTypes type;
		int start, end;

		u32 baseTick;
		bool isReversed;
	};

	float x, y;
	float width, height;
	float angle;

	GXTexObj *texObj;
	int animationCount;
	animation_s animations[1]; // variable size
};

/******************************************************************************
 * Paths
 ******************************************************************************/
struct dKPPath_s;

struct dKPNode_s {
	enum NodeTypes {
		PASS_THROUGH, STOP, LEVEL, CHANGE
	};

	short x, y;
	union {
		dKPPath_s *exits[4];
		struct {
			dKPPath_s *leftExit;
			dKPPath_s *rightExit;
			dKPPath_s *upExit;
			dKPPath_s *downExit;
		};
	};
	dKPLayer_s *tileLayer, *doodadLayer;

	NodeTypes type;
	union {
		struct { u8 levelNumber[2]; };
		struct { const char *destMap; u8 thisID, foreignID, transition, _; };
	};


	dKPPath_s *getAnyExit() {
		for (int i = 0; i < 4; i++)
			if (exits[i])
				return exits[i];
		return 0;
	}

	dKPPath_s *getOppositeExitTo(dKPPath_s *path);
};

struct dKPPath_s {
	dKPNode_s *start, *end;
	dKPLayer_s *tileLayer, *doodadLayer;

	u8 unlockType; // 0 = always, 1 = normal, 2 = secret
	u8 unlockLevelNumber[2];
	bool isAvailable; // computed on-the-fly - default from Koopatlas is true
	float speed;
	int animation;
};

/******************************************************************************
 * Tying It All Together
 ******************************************************************************/
struct dKPLayer_s {
	enum LayerTypes {
		OBJECTS, DOODADS, PATHS
	};

	LayerTypes type;

	typedef u16 sector_s[16][16];

	union {
		struct {
			GXTexObj *tileset;
			union {
				int sectorBounds[4];
				struct {
					int sectorLeft;
					int sectorTop;
					int sectorRight;
					int sectorBottom;
				};
			};
			union {
				int bounds[4];
				struct {
					int left;
					int top;
					int right;
					int bottom;
				};
			};
			u16 indices[1]; // variable size
		};

		struct {
			int doodadCount;
			dKPDoodad_s *doodads[1]; // variable size
		};

		struct {
			int nodeCount;
			dKPNode_s **nodes;
			int pathCount;
			dKPPath_s **paths;
		};
	};


	int findNodeID(dKPNode_s *node);
};

struct dKPMapFile_s {
	int layerCount;
	dKPLayer_s **layers;

	int tilesetCount;
	GXTexObj *tilesets;

	dKPLayer_s::sector_s sectors[1]; // variable size
};

class dKPMapData_c {
	private:
		dDvdLoader_c m_fileLoader;

		template <typename T>
			inline T* fixRef(T*& indexAsPtr) {
				unsigned int index = (unsigned int)indexAsPtr;
				if (index == 0xFFFFFFFF)
					indexAsPtr = 0;
				else
					indexAsPtr = (T*)(((char*)data) + index);
				return indexAsPtr;
			}

		template <typename T>
			inline T* fixRefSafe(T*& indexAsPtr) {
				unsigned int index = (unsigned int)indexAsPtr;
				if (index == 0xFFFFFFFF)
					indexAsPtr = 0;
				else if (index < 0x80000000)
					indexAsPtr = (T*)(((char*)data) + index);
				return indexAsPtr;
			}

		inline void fixTexObjSafe(GXTexObj *obj) {
			if (obj->dummy[3] >= 0x10000000) {
				obj->dummy[3] = (((u32)data) & 0x7FFFFFFF) + (obj->dummy[3] - 0x10000000);
				obj->dummy[3] >>= 5;
			}
		}

		bool fixedUp;
		bool tilesetsLoaded;

		void fixup();

		bool loadTilesets();
		void unloadTilesets();


	public:
		dDvdLoader_c *tilesetLoaders;
		dKPMapFile_s *data;
		dKPLayer_s *pathLayer;

		dDvdLoader_c bgLoader;

		dKPMapData_c();
		bool load(const char *filename);
		~dKPMapData_c();
};

#endif