initial commit of the Koopatlas engine

1 files changed, 191 insertions, 0 deletions

diff --git a/src/koopatlas/mapdata.h b/src/koopatlas/mapdata.h
new file mode 100644
index 0000000..2b643bd
--- /dev/null
+++ b/src/koopatlas/mapdata.h
@@ -0,0 +1,191 @@
+#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;
+		float frameCount;
+		AnimTypes type;
+		float start, end;
+	};
+
+	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;
+	dKPPath_s *exits[4];
+	dKPLayer_s *tileLayer, *doodadLayer;
+
+	int type;
+	union {
+		struct { u8 levelNumber[2]; };
+		struct { char *destMap; u8 thisID, foreignID, transition; };
+	};
+};
+
+struct dKPPath_s {
+	dKPNode_s *start, *end;
+	dKPLayer_s *tileLayer, *doodadLayer;
+
+	u8 unlockType; // 0 = always, 1 = start, 2 = end
+	u8 unlockIsSecret;
+	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;
+		};
+	};
+};
+
+struct dKPUnlock_s {
+	u8 isSecret;
+	u8 level[2];
+	u8 _;
+
+	dKPPath_s *targetPath;
+};
+
+struct dKPMapFile_s {
+	int layerCount;
+	dKPLayer_s **layers;
+
+	int unlockCount;
+	dKPUnlock_s *unlocks;
+
+	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;
+
+		dKPMapData_c();
+		bool load(const char *filename);
+		~dKPMapData_c();
+};
+
+