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19876836
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2013-11-09T14:02:17.067
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In the code, you created a single ball. I think what you want to do is create multiple balls, all of which have a separate b2Body in the physics simulation. There are several ways you can do this, but I'm going to stick with the "brute force approach" for now. Create a static function like this: <pre><code>static b2Body* CreateBall(b2World* world, CCNode* node, CCPoint position) { // Create sprite and add it to the layer CCSprite* ballSprite = [CCSprite spriteWithFile:@"ball.png" rect:CGRectMake(0, 0, 52, 52)]; ballSprite.position = ccp(position.x, position.y); [node addChild:ballSprite]; // Create ball body and shape b2BodyDef ballBodyDef; ballBodyDef.type = b2_dynamicBody; ballBodyDef.position.Set(position.x/PTM_RATIO, position.y/PTM_RATIO); ballBodyDef.userData = ballSprite; b2Body* body = world->CreateBody(&ballBodyDef); b2CircleShape circle; circle.m_radius = 26.0/PTM_RATIO; b2FixtureDef ballShapeDef; ballShapeDef.shape = &circle; ballShapeDef.density = 1.0f; ballShapeDef.friction = 0.2f; ballShapeDef.restitution = 0.4f; body->CreateFixture(&ballShapeDef); return body; } </code></pre> NOTE: I typed this in. I did not compile it. It may need a little tweaking. Call this each time you want to create a new ball and pass in the world and position you want the ball to be at. Was this what you needed? I have larger examples (and code) using Box2D and working with graphics, etc., on my site at <a href="http://www.nonlinearideas.com" rel="nofollow">http://www.NonlinearIdeas.com</a>.
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1. POclone an existing ball spirte and the object in box2d cocos2d
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1. USFuzzyBunnySlippers
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