精靈動畫片

Question

我正在使用cocos2d和box2d phisycs開發應用程序。我想讓我的精靈在移動時變成動畫。我在Zwoptex中創建了* .plist和* .png文件，並將它們添加到我的項目中。現在，我試圖創建一個精靈：

 [[CCSpriteFrameCache sharedSpriteFrameCache]addSpriteFramesWithFile:@"SquirrelAnimation.plist"]; 

     node = [CCSpriteBatchNode batchNodeWithFile:@"SquirrelAnimation.png" capacity:100]; 
     spriteTexture = [node texture]; 

     b2BodyDef bodyDef; 
     bodyDef.type = bodyType; 
     CGSize size = [CCDirector sharedDirector].winSize; 
     CGPoint point = ccp(size.width/2, size.height/2); 
     bodyDef.position.Set(point.x/PTM_RATIO, point.y/PTM_RATIO); 
     body = world->CreateBody(&bodyDef); 

     sprite = [PhysicsSprite spriteWithTexture:spriteTexture]; 
     [sprite setPhysicsBody:body]; 
     [node addChild:sprite]; 

但是，這段代碼使得一個sprite的所有幀到節點。我究竟做錯了什麼？

Answer 1

提取幀像這樣...

[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"spritesheet.plist"]; 
    CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:@"spritesheet.png"]; 


    [self addChild:spriteSheet]; 

    NSMutableArray *frames = [[[NSMutableArray alloc]init]retain]; 


    for(int i = 1; i <= numberFrames; i++) { 
      [frames addObject:[[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:[NSString stringWithFormat:@"%@0%d.png", file_name, i]]]; 
     } 


    // Animation object with 0.04 seconds between each frame (~30fps) 
     CCAnimation *anim = [CCAnimation animationWithFrames:frames delay:0.04f]; 

     if(self.sprite){ 
      // Animate the sprite 
      [self.sprite runAction:[CCAnimate actionWithAnimation:anim restoreOriginalFrame:NO]]; 
     }