Draw sprite in cocos2d on top of others
I am playing in cocos2d and wanted know how can i give a sprite a layer depth meaning开发者_Python百科 how can i keep a sprite on top of others?
You could do something like this:
Assuming your class is a subclass of CCScene
-(id) init
{
if( (self=[super init] )) {
CCLayer *foreground = [CCLayer node];
CCLayer *background = [CCLayer node];
CCSprite *sprite1 = [CCSprite spriteWithFile:@"sprite1.png"];
CCSprite *sprite2 = [CCSprite spriteWithFile:@"sprite2.png"];
CCSprite *sprite3 = [CCSprite spriteWithFile:@"sprite3.png"];
[sprite1 addChild:sprite2 z:-1]; //This z:-1 means that sprite 2 is behind sprite 1
[foreground addChild:sprite1];
[background addChild:sprite3];
[self addChild:background z:0]; // z:0 is default, you don't need to add it.
[self addChild:foreground z:1]; // z:1 is infront of z:0
}
return self;
}
The bit you need to learn how to use is the z: parameter of add child. If you add a child without the z parameter, the child is placed on top.
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