我是cocos2D的新程序员,我尝试做教程https://www.makegameswith.us/tutorials/getting-started-with-spritebuilder/creating-two-levels/ 但我的物体只是飞到地上而不是正确......我不知道是什么错。 这是我的代码:
- (void)launchFire {
// loads the Penguin.ccb we have set up in Spritebuilder
CCNode* fireBall = [CCBReader load:@"Fireball"];
// position the penguin at the bowl of the catapult
fireBall.position = ccpAdd(_block.position, ccp(18, 50));
CCLOG(@"Block Position: \nX:%.2f\nY:%.2f",_block.position.x,_block.position.y);
CCLOG(@"Fireball Position: \nX:%.2f\nY:%.2f",fireBall.position.x,fireBall.position.y);
// add the penguin to the physicsNode of this scene (because it has physics enabled)
[_physicsNode addChild:fireBall];
// manually create & apply a force to launch the penguin
CGPoint launchDirection = ccp(1, 0);
CGPoint force = ccpMult(launchDirection, 8000);
[fireBall.physicsBody applyForce:force];
}
我使用的是变量火球而不是Pinguin ......
如果你可以帮助我,很多人谢谢。