sprite.h

数据挖掘中de一个算法 hamster的实例

/*----------------------------------------------------------------------
  File    : sprite.h
  Contents: sprite management (Microsoft Windows Version)
  Author  : Christian Borgelt
  History : 15.10.1997 file created
            31.10.1997 field hdc_win added to SPRITE structure
----------------------------------------------------------------------*/
#ifndef __SPRITE__
#define __SPRITE__
#include <limits.h>
#include <windows.h>

/*----------------------------------------------------------------------
  Type Definitions
----------------------------------------------------------------------*/
typedef struct {                /* --- sprite --- */
  int     xext, yext;           /* x- and y-extension of sprite */
  int     xoff, yoff;           /* x- and y-offset to current image */
  int     xnew, ynew;           /* x- and y-offset to new image */
  int     xpos, ypos;           /* current position of sprite */
  int     drawn;                /* flag whether sprite is drawn */
  HWND    hwnd;                 /* window handle */
  HDC     hdc_win;              /* handle of window device context */
  HDC     hdc_bmp;              /* handle of sprite device context */
  HBITMAP bitmap;               /* handle of sprite bitmap */
  HDC     hdc_msk;              /* handle of mask device context */
  HBITMAP mask;                 /* handle of mask bitmap */
  HDC     hdc_buf;              /* handle of buffer device context */
  HBITMAP buffer;               /* handle of background buffer */
} SPRITE;                       /* (sprite) */

/*----------------------------------------------------------------------
  Functions
----------------------------------------------------------------------*/
extern SPRITE* spr_create (HWND hwnd, int xext, int yext,
                           HBITMAP bitmap, HBITMAP mask);
extern void    spr_delete (SPRITE *spr, int del);
extern void    spr_pos    (SPRITE *spr, int *x, int *y);
extern void    spr_select (SPRITE *spr, int series, int index);
extern int     spr_draw   (SPRITE *spr, int x, int y);
extern int     spr_undraw (SPRITE *spr);
extern int     spr_move   (SPRITE *spr, int dx, int dy, int di,
                           int cnt, float delay);

/*----------------------------------------------------------------------
  Preprocessor Definitions
----------------------------------------------------------------------*/
#define spr_pos(s,x,y)    (*(x) = (s)->xpos, *(y) = (s)->ypos)

#endif