SpriteKit 动画没有按预期加载。我究竟做错了什么？

Question

我正在制作一个简单的游戏。英雄应该跳过敌人，如果他们发生碰撞 - 敌人应该吃掉英雄。我有 4 种类型的敌人随机生成在英雄面前。我使用每个 enemy-array 的第一个精灵作为主要精灵，其余的用于动画。但是当它们碰撞时——什么也没有发生，它仍然是第一个精灵。我就是这样做的：

let mouseAtlas = SKTextureAtlas(named: "mouse") 
mouseArray.append(mouseAtlas.textureNamed("mouse_0"));
mouseArray.append(mouseAtlas.textureNamed("mouse_1"));
mouseArray.append(mouseAtlas.textureNamed("mouse_2"));
mouseArray.append(mouseAtlas.textureNamed("mouse_3"));

老鼠是敌人，饼干是英雄。

mouse = SKSpriteNode(texture: mouseArray[0]);
self.mouse.position = CGPointMake(CGRectGetMaxX(self.frame) + self.cookie.size.width, self.cookieSpot + self.cookie.size.height + self.cookie.size.height / 2)
self.mouse.size = CGSizeMake(self.cookie.size.width + self.cookie.size.width / 2, self.cookie.size.height + cookie.size.height / 2)    

self.addChild(cookie)
self.addChild(mouse)

然后我将物理体应用到它们：

self.cookie.physicsBody = SKPhysicsBody(circleOfRadius: CGFloat(self.cookie.size.width / 2))
self.cookie.physicsBody?.affectedByGravity = false
self.cookie.physicsBody?.categoryBitMask = ColliderType.Cookie.rawValue
self.cookie.physicsBody?.collisionBitMask = ColliderType.Pet.rawValue
self.cookie.physicsBody?.contactTestBitMask = ColliderType.Pet.rawValue

self.mouse.physicsBody = SKPhysicsBody(rectangleOfSize: self.mouse.size)
self.mouse.physicsBody?.dynamic = false
self.mouse.physicsBody?.categoryBitMask = ColliderType.Pet.rawValue
self.mouse.physicsBody?.contactTestBitMask = ColliderType.Cookie.rawValue
self.mouse.physicsBody?.collisionBitMask = ColliderType.Cookie.rawValue

然后我尝试在接触开始时制作动画：

func didBeginContact(contact: SKPhysicsContact) {
    eatenByMouse(); eatenByHamster(); eatenByRabbit(); eatenByCat()
}

func eatenByMouse() {
    self.groundSpeed = 0
    self.cookie.hidden = true
 let animateAction = SKAction.animateWithTextures(self.mouseArray, timePerFrame: 0.1)
}

正如我所说，有 4 种类型的敌人，但它们实际上是相同的。我做错了什么？我也很感兴趣，我可以只在一侧制作敌人的物理 body 吗？我的意思是，只有当我的英雄碰到敌人嘴巴时，怎么才能让他吃掉？如果它碰到尾巴，它会继续滚动和跳跃吗？非常感谢！

Answer 1

您必须在创建后运行 SKAction。

func eatenByMouse() {
    self.groundSpeed = 0
    self.cookie.hidden = true
    let animateAction = SKAction.animateWithTextures(self.mouseArray, timePerFrame: 0.1)
    self.mouse.runAction(animateAction) // added line.
}

您可以使用SKPhysicsContact.contactPoint检测碰撞点。

SpriteKit 动画没有按预期加载。我究竟做错了什么？

SpriteKit Animation isn't loading when it supposed to be. What am I doing wrong?

animation

sprite-kit

skphysicsbody

swift