SpriteKit中的CPU使用率非常高

问题描述：

我在SpriteKit中制作了一个简单的基于磁贴的游戏，并且在我的游戏中CPU使用率很高。我有一张由60个贴图组成的地图，每个贴图都是SKSpriteNode的子类。只是在场景中显示这60个精灵在iPhone 6s模拟器中使用多达80％的CPU。没有运动，用户交互或物理进行。当我在UIKit中制作相同的游戏而不是SpriteKit时，我的CPU使用率为0.什么可以使用这么多的CPU？SpriteKit中的CPU使用率非常高

我的瓷砖类：

import SpriteKit 
import UIKit 
class Tile: SKSpriteNode { 

var tileType = "grass", tileX = 0, tileY = 0 
    init (tileType: String, tileX: Int, tileY: Int) { 
     self.tileType = tileType 
     self.tileX = tileX 
     self.tileY = tileY 
     let texture = SKTexture(imageNamed: tileType) 
     super.init(texture: texture, color: UIColor(), size: texture.size()) 
     self.userInteractionEnabled = true 
     self.position = CGPoint(x: CGFloat(45+64*(tileX-1)), y: CGFloat(47+56*(tileY-1))) 
     self.zPosition = -1 

    } 
    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 

}

和我的雪碧套件现场代码：

import SpriteKit 
var map: [[String]] = [["grass","water","grass","rocky","rocky","grass","grass","grass","grass","water"],["grass","water","grass","grass","rocky","rocky","grass","grass","water","water"],["grass","water","water","grass","rocky","grass","grass","water","water","water"],["grass","grass","water","rocky","rocky","grass","grass","water","water","water"],["grass","grass","water","rocky","rocky","grass","water","water","water","water"],["grass","grass","water","rocky","rocky","grass","water","water","water","water"] ] 
class GameScene: SKScene { 
    override func didMoveToView(view: SKView) { 
     /* Setup your scene here */ 
     for (rowNumber, row) in map.enumerate() { 
      for (columnNumber, type) in row.enumerate() { 
       let theTile = Tile(tileType: type, tileX: columnNumber+1, tileY: rowNumber+1) 

       self.addChild(theTile) 
      } 
     } 
     self.backgroundColor = UIColor(colorLiteralRed: 0, green: 0, blue: 0, alpha: 0) 


    } 

    override func update(currentTime: CFTimeInterval) { 
     /* Called before each frame is rendered */ 
    } 
}

答

iPhone模拟器上的Xcode比在真实设备更大的CPU使用率。

在真实设备中测试以获得有关CPU使用情况的真实指标。

谢谢！在真正的手机上降至10％。 –

@ATyshka如果这个答案解决了你的问题，你应该将它标记为[accepted]（http://stackoverflow.com/help/accepted-answer）。 – Whirlwind

对不起！我是这个网站的新手 –

答

Tyshka，你需要重用资源。您的代码为完全相同的输入图像数据创建一个新的SKTexture。只需创建一个SKTexture，然后将其设置为新节点的纹理。给你的代码添加一个映射，以便SKTexture可以在给定纹理字符串名称的情况下进行检查和重用。

是的，我意识到这一点。将解决！ –

SpriteKit中的CPU使用率非常高

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