sprite.h

这个版本修正了已知的Bug,同时添加了部分函数

BITMAP *create_rle_sprite(char *file)
{FILE *fp;PCXHEAD pcx;
if((fp=fopen(file,"rb"))==NULL){
      sprintf(grp_err,"Can't open Pcx file %s",file);

      return FALSE;}
      BITMAP *bitmap;int len;
      bitmap=(BITMAP*)malloc(sizeof(BITMAP));
      if(!bitmap)return FALSE;
      fread(&pcx,1,sizeof(PCXHEAD),fp);
      bitmap->h=pcx.ymax-pcx.ymin+1;
      bitmap->w=pcx.width;
      bitmap->line[0]=NULL;
      bitmap->MskCol=0;
      len=filelength(fp->_handle);
      bitmap->dat=new unsigned char [len-128];
      if(!bitmap->dat){free(bitmap);return FALSE;}
      fseek(fp,128L,SEEK_SET);
      fread(bitmap->dat,1,len-128,fp);
      fclose(fp);
return bitmap;
}

void draw_rle_sprite(BITMAP *source,BITMAP *sprite,int x,int y)
{int x1,y1,total,count,auto_count=0;
      unsigned char data;
      sprite->MskCol=*(sprite->dat+1);
      for(y1=0;y1<sprite->h;y1++)
       {total=0;
        while(total<sprite->w)
         {count=1;
         data=*(sprite->dat+auto_count);
         auto_count++;
         if(0xc0==(0xc0&data))
          {count=0x3f&data;
         data=*(sprite->dat+auto_count);
         auto_count++;
          }
           if(data!=sprite->MskCol)
            for(x1=0;x1<count;x1++)
          {
             *(*(source->line+y1+y)+x+x1+total)=data;
          }

           total+=count;
         }
         }
}

void draw_sprite(BITMAP *source,BITMAP *dest,int x,int y)
{masked_blit(source,dest,dest->x,dest->y,x,y,dest->w,dest->h);}

void draw_sprite_vh_flip(BITMAP *source,BITMAP *dest,int x,int y)
{
 register  unsigned int offset_d=0,offset_s,source_offset;
 register  int i,j;
 register  unsigned char data,*p=dest->dat;
   offset_s=x+y*dest->w;
   p+=dest->w*(dest->h-1);
   source_offset=dest->y*source->w+dest->x;

  for(i=0;i<dest->h;i++)
  {
    for(j=0;j<dest->w;j++)
     if((data=*(p-offset_s+j))!=dest->MskCol)
*(source->dat+offset_d+j+source_offset)=data;
    offset_d+=source->w;
    offset_s+=dest->w;
  }
 return ;
}

void draw_sprite_v_flip(BITMAP *source,BITMAP *dest,int x,int y)
{
 register  unsigned int offset_d=0,offset_s,source_offset;
 register  int i,j;
 register  unsigned char data,*p=dest->dat;
   offset_s=x+y*dest->w;
   p+=dest->w*dest->h;
   source_offset=dest->y*source->w+dest->x;

  for(i=0;i<dest->h;i++)
  {
    for(j=0;j<dest->w;j++)
     if((data=*(p-offset_s-j))!=dest->MskCol)
*(source->dat+offset_d+j+source_offset)=data;
    offset_d+=source->w;
    offset_s+=dest->w;
  }
}

void draw_sprite_h_flip(BITMAP *source,BITMAP *dest,int x,int y)
{
 register  unsigned int offset_d=0,offset_s,source_offset;
 register  int i,j;
 register  unsigned char data,*p=dest->dat;
   offset_s=x+(y+1)*dest->w;
   source_offset=dest->y*source->w+dest->x;

  for(i=0;i<dest->h;i++)
  {
    for(j=dest->w;j>0;j--)
     if((data=*(p+offset_s-j))!=dest->MskCol)
*(source->dat+offset_d+j+source_offset)=data;
    offset_d+=source->w;
    offset_s+=dest->w;
  }
 return ;
}