include/sgepathfinder.h

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#ifndef _SGEPATHFINDER_H
#define _SGEPATHFINDER_H

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Copyright (c) 2007 Heiko Irrgang
 *
 * The license and distribution terms for this file may be
 * found in the file COPYING in this distribution or at
 * http://93-interactive.com/cms/products/software/sdl-game-engine/license/
 */

#define DISABLE_DIAGONAL 0

#define ENABLE_DIAGONAL 1

typedef struct {
        int x;
        int y;
        int startWeight;
        int targetWeight;
        void *parent;
} SGEPATHFINDERINFO;

typedef struct {
        int width;
        int height;
        unsigned char *map;
        SGEARRAY *path;
        int useDiagonal;
} SGEPATHFINDER;

SGEPATHFINDER *sgePathFinderNew(int width, int height);

SGEPATHFINDER *sgePathFinderNewDiagonal(int width, int height, int diagonal);

void sgePathFinderDestroy(SGEPATHFINDER *p);

SGEPATHFINDERINFO *sgePathFinderInfoNew(int x, int y, int startWeight, int targetWeight, void *parent);

void sgePathFinderInfoDestroy(SGEPATHFINDERINFO *pi);

inline void sgePathFinderDiagonal(SGEPATHFINDER *p, int diagonal);

void sgePathFinderSet(SGEPATHFINDER *p, int x, int y, int value);

int sgePathFinderGet(SGEPATHFINDER *p, int x, int y);

int sgePathFinderFind(SGEPATHFINDER *p, int startx, int starty, int destx, int desty);

// }@

#ifdef __cplusplus
}
#endif

#endif