namespace_Coll.h

struct BoundingBox
{
	short min[3];
	short max[3];
};

struct BspSearchVertex
{
	// 0x0
	short pos[3];
	
	// 0x6
	// FUN_8001f2dc - COLL_FIXED_TRIANGL_GetNormVec
	// FUN_8001ef50 - COLL_FIXED_TRIANGL_TestPoint
	u_short flags;
	
	// 0x8
	struct LevVertex* pLevelVertex;
	
	// 0xC
	short normalVec[4];
	
	// 0x14 large
};

struct BspSearchTriangle
{
	struct QuadBlock* quadblock;
	int triangleID;
	int numCollision;
};

// can be stored in normal RAM,
// usually 1f800108
struct ScratchpadStruct
{
	struct
	{
		// this "pos" for threads: center of object
		// this "pos" for quadblock: posMin of object
		
		// 0x0
		short pos[3];
		short hitRadius;
		
		// 0x8
		int hitRadiusSquared;
		
		// 0xC
		int modelID;
	} Input1;
	
	// 0x10
	union
	{
		// This is why pointer 1f800118 gets passed
		struct
		{
			// this "pos" for quadblock: posMax of object,
			// hitRadius could just be a copy
			
			// 0x10
			short pos[3];
			short hitRadius;
		
			// 0x18
			int hitRadiusSquared;
		
			// 0x1C
			short hitPos[3];
			
			// 0x22
			short searchFlags;
			
			// 0x24
			int qbFlagsWanted;
			
			// 0x28
			int qbFlagsIgnored;
			
		} QuadBlockColl;
		
		// when using this,
		// rest of struct is ignored
		struct
		{
			// 0x10
			short distance[3];
			short unk;
			
			// 0x18
			struct Thread* thread;
			
			// 0x1c
			short min[3];
			short max[3];
			
			// 0x28
			// could be non-union 0x28
			void* funcCallback;
			
		} ThBuckColl;
	} Union;
	
	// 0x2C
	struct mesh_info* ptr_mesh_info;

	// 0x30
	struct BoundingBox bbox;
	
	// 0x3C...
	// 1f800144, can be ptr_mesh_info, or search flags
	short unk3C;
	
	// 0x3e
	short boolDidTouchQuadblock;
	
	// 0x40
	// short boolDidTouch_What?
	short unk40;
	
	// 0x42 
	short boolDidTouchHitbox;
	
	// 0x44
	struct mesh_info* ptr_mesh_info_2;
	
	// 0x48 
	struct BSP* bspHitbox;
	
	// 0x4c
	struct
	{
		// 0x4c
		short hitPos[3];
		
		// 0x52
		// which way does normal point
		short BspSearchVertexFlags;
		
		// 0x54 
		short normalVec[4];
		
		// 0x5c
		// distanceFromDriverToUNK
		short unk[3];
		
		// 0x62
		char unk62;
		char unk63_someIndex;
		
		// 0x64
		void* ptrQuadblock;
		
	} Set1;
	
	// 0x68
	struct
	{
		// 0x68
		short hitPos[3];
		
		// 0x6e
		// which way does normal point
		short BspSearchVertexFlags;
		
		// 0x70 
		short normalVec[4];
		
		// 0x78
		// distanceFromDriverToUNK
		char unk[8];
		
		// 0x80
		struct QuadBlock* ptrQuadblock;
		
	} Set2;
	
	// 0x84
	int countByOne_ForWhatReason; // ??
	
	// 0x88
	// This can happen 15 times cause of FUN_80020410,
	// so this prevents any duplicate collisions
	struct BSP* bspInstHitboxArr[15];
	
	// 0xc4
	int numInstHitboxesHit;
	
	// 0xc8, 0xca,
	short barycentrics[2];
		
	// 0xcc, 0xd0, 0xd4
	struct LevVertex* levVertHit[3];
	
	// 0xd8, 0xdc, 0xe0
	struct BspSearchVertex* bspSearchVertHit[3];
	
	// 0xe4
	int unkE4;
	
	// vec3, bsp->0x10 - position (FUN_8001d0c4)
	// 0xe8, 0xea, 0xec, 0xee
	short unkVecE8[4];
	
	// 0xf0
	struct BspSearchVertex bspSearchVert[9];

	// 0x1a4 - quadblock action flags
	// 0x1a8 - fastmath normalization
	char dataOutput[0x68];
	
	// offset 0x1c4
	// FUN_8001d0c4
	
	// 0x20C -- size of struct
};

// only stored in Scratchpad
// FUN_80020334
struct ScratchpadStructExtended
{
	// --- top half is for COLL ---
	
	struct ScratchpadStruct scratchpadStruct;
	
	// 0x20C
	struct BspSearchTriangle bspSearchTriangle[0xF];
	
	// 0x2c0
	int numTriangles;
	
	// 0x2c4 - 1f8003cc
	int unk1[2];
	
	
	// --- the rest is for pushBuffer funcs ---
	
	
	// 0x2cc - 1f8003d4
	MATRIX cameraMatrix;
	
	// 0x2ec - 1f8003f4
	short cameraRot[3];
	
	// 0x2f2 - 1f8003fa
	short unk2;
	
	// 0x2f4 - 1f8003fc
	int unk3;
	
	// 1f800400 end of memory
};

_Static_assert(sizeof(struct BoundingBox) == 0xC);
_Static_assert(sizeof(struct BspSearchVertex) == 0x14);
_Static_assert(sizeof(struct BspSearchTriangle) == 0xC);
_Static_assert(sizeof(struct ScratchpadStruct) == 0x20C);