cocos2d, reorder children in different batch node

Question

I am creating a fighting game. I've got a spritesheet for the hero and a spritesheet for a monster. Since both will be able to do multiple attacks I would like to avoid to merge them in a single spritesheet. And I am intending to create more characters.

Now I am creating a SpriteBatchNode for each spritesheet and add them to layer.

CCLayer* stage = CCLayer::create();
CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("character_hero.plist");
this->characterHeroBatchNode = CCSpriteBatchNode::create("character_hero.pvr.ccz");

CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("character_monster.plist");
this->characterMonsterBatchNode = CCSpriteBatchNode::create("character_monster.pvr.ccz");

stage->addChild(characterHeroBatchNode);
stage->addChild(characterMonsterBatchNode);

Now I have one sprite in characterHeroBatchNode and multiple in characterMonsterBatchNode.

How can I reorder the monsters and the heros z-Order based on their PositionY attribute.

For example>

monster1->setPositionY(10); // In monster batch node
hero->setPositionY(24); // In hero batch node
monster2->setPositionY(43); // In monster batch node

I want the monster 1 behind the hero. And the hero behind monster2.

microslop · Answer 1 · 2013-12-12T21:39:50.683

1

If I understand what you're asking, the answer is, you can't. Consider each CCSpriteBatchNode to be its own container. You can adjust the Z order of the sprites inside the CCSpriteBatchNode, but when you add the batch to the CCLayer the whole CCSpriteBatchNode is applied to the CCLayer in whatever Z order you added it at. So in order to do what you want you would need another batch of monsters. Or use CCSprites and add/adjust them on the CCLayer in the way you want, but then you obviously lose the CCSpriteBatchNode benefits.

edited Dec 12 '13 at 21:39

answered Dec 12 '13 at 21:27

microslop

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Since NonlinearIdeas posted a suggestion which works better in my case I accepted his answer. But thanks for the fast reply! – Xazen Dec 14 '13 at 19:40

score 1 · Accepted Answer · answered Dec 14 '13 at 00:17

In the past, I've had to create games where I wanted some sprites in the foreground and others in the background. The sprites were in different sheets, like you have them.

To get them in the order I wanted, I put the "front" sprites into one CCLayer and the "back" sprites into another CCLayer. I added the layers to the scene in the order I wanted them to appear. I also manipulated each the respective layers to make them fade in/out as needed. So you could have the hero in the scene and then have the enemies appear behind him.

If you want to mix and match, you can have 3 layers, one for the "middle ground", one for "front", and one for "back", and dynamically move the sprites between the layers.

Was this what you were looking for?

Thanks for the suggestion. I will keep it in mind. I am not sure yet whether 2 Spritesheets will be enough. But I will adopt it in some way. — Xazen, Dec 14 '13 at 19:41

cocos2d, reorder children in different batch node

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