CCSprite方向Cococs2d 3.0

如何直接拍攝精靈「墨水」？玩家Squiddy在屏幕上移動，我希望它每次都能直線上升。該代碼我迄今拍攝的墨，但它拍攝到某一點，屏幕上CCSprite方向Cococs2d 3.0

代碼

CGPoint targetPosition = ccp(self.contentSize.width/2, self.contentSize.height/2 + self.contentSize.height); 

ink = [CCSprite spriteWithImageNamed:@"MarioTube_Body_Rev.png"]; 
ink.position = Squiddy.position; 
ink.physicsBody = [CCPhysicsBody bodyWithCircleOfRadius:ink.contentSize.width/2.0f andCenter:ink.anchorPointInPoints]; 
ink.physicsBody.collisionGroup = @"playerG roup"; 
ink.physicsBody.collisionType = @"projectileCollision"; 
CCActionRotateBy *actionSpin = [CCActionRotateBy actionWithDuration:.5f angle:360]; 
[ink runAction:[CCActionRepeatForever actionWithAction:actionSpin]]; 
[_physicsWorld addChild:ink]; 

CCActionMoveTo *actionMove = [CCActionMoveTo actionWithDuration:.75f position:targetPosition]; 
CCActionRemove *actionRemove = [CCActionRemove action]; 
[ink runAction:[CCActionSequence actionWithArray:@[actionMove,actionRemove]]];

來源

2014-03-04 Crazycriss

正如我所看到的，墨水是一種物理身體。你爲什麼不嘗試應用一個force.physicsBody而不是運行一個動作？ – mursang

所以像這樣'ink.physicsBody.force = @「」;'？ – Crazycriss

是的，就是。看到我的回答下面 – mursang

正如我以前說過，儘量力或衝動適用於ink.physicsBody：

CGPoint force = ccpMult(ccp(0,90), 600); //x=0, y=90, force=600 
[ink.physicsBody applyForce:force];

隨着x = 0的值，力量會增加。只要玩這些價值觀。希望這有助於

來源

2014-03-05 06:08:01 mursang

完美的工作，謝謝！ – Crazycriss

CCSprite方向Cococs2d 3.0

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