Ios 如何在Sprite Kit-Swift中通过CGPoints数组设置动画

如何在swift中从

CGPoints

数组中设置

SKSpriteNode

的动画？我还希望

SKSpriteNode

朝着下一个位置旋转。任何帮助都将不胜感激。

您可以这样做：

import SpriteKit

class GameScene: SKScene,SKSceneDelegate {


    override func didMove(to view: SKView) {

        //1. create points
        let points = [CGPoint(x:120,y:20),CGPoint(x:220,y:20),CGPoint(x:40,y:320)]

        var actions = [SKAction]()

        //2. Create actions
        for point in points {
            actions.append(SKAction.move(to: point, duration: 1))
        }

        let sprite = SKSpriteNode(color: .white, size: CGSize(width: 100, height: 100))

        addChild(sprite)

        //3. Create the action sequence from previously created actions
        let sequence = SKAction.sequence(actions)

        //4. Run the sequence (use the key to stop this sequence)
        sprite.run(sequence, withKey:"aKey")

    } 
}

class GameScene: SKScene {


    override func didMove(to view: SKView) {


        //1. create points
        let points = [
            CGPoint(x:frame.minX,y:frame.minY),
            CGPoint(x:frame.maxX,y:frame.maxY),
            CGPoint(x:frame.maxX,y:frame.midY),
            CGPoint.zero
                      ]

        //2. Create a path
        let path = CGMutablePath()

        //3. Define starting point
        path.move(to: points[0])

        //4. Add additional points
        for point in points[1..<points.count]{

            print("point : \(point)")
            path.addLine(to: point)
        }

        //5. Create an action which will make the node to follow the path
        let action = SKAction.follow(path, speed: 122)

        let sprite = SKSpriteNode(color: .white, size: CGSize(width: 100, height: 100))

        addChild(sprite)

        sprite.run(action, withKey: "aKey")

    }
}

---

根据@KnightOfDragon的建议，您可以创建一条路径并使节点跟随它，如下所示：

import SpriteKit

class GameScene: SKScene,SKSceneDelegate {


    override func didMove(to view: SKView) {

        //1. create points
        let points = [CGPoint(x:120,y:20),CGPoint(x:220,y:20),CGPoint(x:40,y:320)]

        var actions = [SKAction]()

        //2. Create actions
        for point in points {
            actions.append(SKAction.move(to: point, duration: 1))
        }

        let sprite = SKSpriteNode(color: .white, size: CGSize(width: 100, height: 100))

        addChild(sprite)

        //3. Create the action sequence from previously created actions
        let sequence = SKAction.sequence(actions)

        //4. Run the sequence (use the key to stop this sequence)
        sprite.run(sequence, withKey:"aKey")

    } 
}

class GameScene: SKScene {


    override func didMove(to view: SKView) {


        //1. create points
        let points = [
            CGPoint(x:frame.minX,y:frame.minY),
            CGPoint(x:frame.maxX,y:frame.maxY),
            CGPoint(x:frame.maxX,y:frame.midY),
            CGPoint.zero
                      ]

        //2. Create a path
        let path = CGMutablePath()

        //3. Define starting point
        path.move(to: points[0])

        //4. Add additional points
        for point in points[1..<points.count]{

            print("point : \(point)")
            path.addLine(to: point)
        }

        //5. Create an action which will make the node to follow the path
        let action = SKAction.follow(path, speed: 122)

        let sprite = SKSpriteNode(color: .white, size: CGSize(width: 100, height: 100))

        addChild(sprite)

        sprite.run(action, withKey: "aKey")

    }
}

class游戏场景：SKScene{
覆盖func didMove（到视图：SKView）{
//1.创建点
设点=[
CGPoint（x:frame.minX，y:frame.minY），
CGPoint（x:frame.maxX，y:frame.maxY），
CGPoint（x:frame.maxX，y:frame.midY），
CGPoint.zero
]
//2.创建路径
let path=CGMutablePath（）
//3.确定起点
移动路径（到：点[0]）
//4.添加其他点
点对点[1..谢谢，有没有办法将SKSpriteNode朝着它移动的方向旋转？另外，我能为每个动画设定一个恒定的速度吗？看看这个动画的目标部分。要解决恒定速度问题，请使用公式“时间=距离/速度”。如果你卡住了，问另一个问题，我或其他人会回答，因为这是不同的你已经对你原来的问题有了答案…很惊讶你用这种方法而不是做一个CGPath@Knight0fDragon好吧，我想我只是在回答问题时付出了和OP一样的努力：）我不知道，这是我想到的第一件事，我在30秒内写了一个答案：）但是，是的，梅be your way更适合OP。它似乎更适合内存，但没有测试，谁知道呢；）（我的意思是我不知道
CGMutablePath
在幕后做什么）。