iphone中的圖片替換

Question

我已經添加了一些sprite通過使用下面的代碼，然後通過檢查矩形 交集我想用另一個替換這些精靈。可以通過提供代碼 替代這些隨機圖像幫助我。問題是，要被替換的圖像也採取 隨機.........

   yp = 40; 
    //CCSprite *spr; 

    movableSprites = [[NSMutableArray alloc] init]; 

    for(int m=0; m<4; m++) 
    {    
     do 
     { 
      i = 'a'; 
      //NSLog(@"valueeeeeeeee %d",i); 
      next = arc4random()%maxalphabets; 
      //NSLog(@"valueeeeeeeeenexttttt %d",next); 
      i+=next; 
      //NSLog(@"valueeeeeeeee %d",i); 

      spr = (CCSprite*)[self getChildByTag:i];//checks if found alreadyyyyyy 
      NSLog(@"Strrrrrrrr is:%@",spr); 
     }while(spr); 

     spNameStr = [NSString stringWithFormat:@"%c3.png",i]; 
     NSLog(@"tagggg %d",i); 
     NSLog(@"spNameStr is:%@",spNameStr); 
     spr = [CCSprite spriteWithFile:spNameStr ]; 
     spr.tag = i; 
     //NSLog(@"tagiiiiii %d",i); 
     spr.position = ccp(60,yp); 
     [self addChild:spr z:2]; 
     [movableSprites addObject:spr]; 
     yp+=spr.contentSize.height+35; 
    } 

    yp = 40; 

    NSMutableArray *answerimagesCopy = [NSMutableArray arrayWithArray:movableSprites]; 
    NSLog(@"answer image copy elements areeeee %@",answerimagesCopy); 
    for(k = 0; k < movableSprites.count; ++k) 
    { 
     NSLog(@"inside forrrr"); 
     int j=arc4random()%([answerimagesCopy count]); 
     NSLog(@"valueee of jjjjjjjj %d",j); 
     CCSprite *ansimage = [answerimagesCopy objectAtIndex:j]; 
     //NSLog(@"................ %@",ansimage); 
     p=ansimage.tag; 
     NSLog(@"tagg..... %d",p); 
     [answerimagesCopy removeObjectAtIndex:j]; 
     //NSLog(@"tagg..... %d",j); 


     spNameStr = [NSString stringWithFormat:@"%c4.png",p]; 
     NSLog(@"spNameStr is:%@",spNameStr); 
     //NSLog(@"tagggg %d",j); 
     spr = [CCSprite spriteWithFile:spNameStr ]; 
     spr.tag = p+100; 
     spr.position = ccp(260,yp); 
     [self addChild:spr z:1]; 
     yp+=spr.contentSize.height+35; 
    } 

Answer 1

我已經做了這一點使用精靈表。如果您可以創建一個精靈表，然後將該精靈表分配給CCSpriteBatchNode的對象，如

$ CCSpriteBatchNod * m_meteoritesSprites = [CCSpriteBatchNode batchNodeWithFile：@「Meteo.pvr.ccz」];

然後負載的plist

$ [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile：@ 「Meteo.plist」];

，然後用精靈幀圖像分配給你的精靈一樣

$ m_meteoritesSprites = [CCSpriteBatchNode batchNodeWithFile：@ 「Meteo.pvr.ccz」];

我用TexrturePacker使精靈張

希望這可以幫助你。