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//HEADER_GOES_HERE
#ifndef __ENGINE_H__
#define __ENGINE_H__
//offset 0
//pCelBuff->pFrameTable[0]
extern char gbPixelCol; // automap pixel color 8-bit (palette entry)
extern BOOL gbRotateMap; // flip - if y < x
extern int orgseed;
extern int SeedCount;
extern BOOL gbNotInView; // valid - if x/y are in bounds
inline BYTE *CelGetFrameStart(BYTE *pCelBuff, int nCel)
{
DWORD *pFrameTable;
pFrameTable = (DWORD *)pCelBuff;
return pCelBuff + SwapLE32(pFrameTable[nCel]);
}
#define LOAD_LE32(b) (((DWORD)(b)[3] << 24) | ((DWORD)(b)[2] << 16) | ((DWORD)(b)[1] << 8) | (DWORD)(b)[0])
inline BYTE *CelGetFrame(BYTE *pCelBuff, int nCel, int *nDataSize)
{
DWORD nCellStart;
nCellStart = LOAD_LE32(&pCelBuff[nCel * 4]);
*nDataSize = LOAD_LE32(&pCelBuff[(nCel+1) * 4]) - nCellStart;
return pCelBuff + nCellStart;
}
inline BYTE *CelGetFrameClipped(BYTE *pCelBuff, int nCel, int *nDataSize)
{
DWORD nDataStart;
BYTE *pRLEBytes = CelGetFrame(pCelBuff, nCel, nDataSize);
nDataStart = pRLEBytes[1] << 8 | pRLEBytes[0];
*nDataSize -= nDataStart;
return pRLEBytes + nDataStart;
}
void CelDraw(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void CelBlitFrame(BYTE *pBuff, BYTE *pCelBuff, int nCel, int nWidth);
void CelClippedDraw(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void CelDrawLight(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth, BYTE *tbl);
void CelClippedDrawLight(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void CelClippedBlitLightTrans(BYTE *pBuff, BYTE *pCelBuff, int nCel, int nWidth);
void CelDrawLightRed(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth, char light);
void CelBlitSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth);
void CelClippedDrawSafe(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void CelBlitLightSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth, BYTE *tbl);
void CelBlitLightTransSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth);
void CelDrawLightRedSafe(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth, char light);
void CelBlitWidth(BYTE *pBuff, int x, int y, int wdt, BYTE *pCelBuff, int nCel, int nWidth);
void CelBlitOutline(char col, int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void ENG_set_pixel(int sx, int sy, BYTE col);
void engine_draw_pixel(int sx, int sy);
void DrawLine(int x0, int y0, int x1, int y1, BYTE col);
int GetDirection(int x1, int y1, int x2, int y2);
void SetRndSeed(int s);
int GetRndSeed();
int random_(BYTE idx, int v);
void engine_debug_trap(BOOL show_cursor);
BYTE *DiabloAllocPtr(DWORD dwBytes);
void mem_free_dbg(void *p);
BYTE *LoadFileInMem(char *pszName, DWORD *pdwFileLen);
DWORD LoadFileWithMem(const char *pszName, void *p);
void Cl2ApplyTrans(BYTE *p, BYTE *ttbl, int nCel);
void Cl2Draw(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void Cl2DrawOutline(char col, int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void Cl2DrawLightTbl(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth, char light);
void Cl2DrawLight(int sx, int sy, BYTE *pCelBuff, int nCel, int nWidth);
void Cl2BlitSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth);
void Cl2BlitOutlineSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth, char col);
void Cl2BlitLightSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth, BYTE *pTable);
void PlayInGameMovie(char *pszMovie);
/* rdata */
extern const int RndInc;
extern const int RndMult;
#endif /* __ENGINE_H__ */