问题
So far I am able to control my sprite's side to side movement with buttons in Cocos2d. I am now trying to incorporate a jump animation but I have absolutely no idea how to do this. I have tried one sample code which utilized the init method and combined to animations (jump up and jump down) but whenever I tried to move the sprite while it was jumping i got a SIGABRT error. Please note that I am very unexperienced with Cocos2d and walking me through the steps to make a successful jump animation would be greatly appreciated.
回答1:
CCJumpBy simulates a parabolic jump movement.
id jump_Up = [CCJumpBy actionWithDuration:1.0f position:ccp(0, 200) height:50 jumps:1];
Running the above jump_Up action will move the sprite's position by '0' distance along x axis and '200'units along y axis and will move the sprite along a parabolic path.
If you wish to move the sprite right or left while jumping. Try the following..
CGPoint newPosition = ccp(max(sprite.position.x + screenSize.width * 0.2f,screenSize.width), sprite.position.y);
id jumpAct = [CCJumpBy actionWithDuration:1.0f position:newPosition height:50 jumps:1];
[sprite runAction:jumpAct];
回答2:
Just a quick update - with the V3 release of Cocos2D, the method is now CCActionJumpBy. So it's something like this...
CCActionJumpBy *jump = [CCActionJumpBy actionWithDuration:1.0f position:ccp(0, 200) height:50 jumps:1];
[_yourSpriteObject runAction:jump];
来源：https://stackoverflow.com/questions/18863121/cocos2d-jump-animation-moving