SpriteKit中非常高的CPU使用率

Question

我在SpriteKit中制作了一个简单的基于瓷砖的游戏，在我的游戏中，我的CPU使用率过高也有一些困难。我有一张由60个瓷砖组成的地图，每个瓷砖都是SKSpriteNode的一个子类。仅在场景中显示这60颗精灵就需要在iPhone 6s模拟器中消耗多达80%的CPU。没有任何运动，用户交互，或物理正在进行。当我在UIKit而不是SpriteKit中做同样的游戏时，我的CPU使用量是0。什么能用这么多CPU？

我的瓷砖课：

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")
    }

}

我的雪碧套件场景代码：

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 */
    }
}

Answer 1

Xcode上的Iphone模拟器比实际设备上的CPU使用率高得多。

在真正的设备中进行测试，以便有一个关于CPU使用情况的真实度量。

Answer 2

泰什卡你需要重用资源。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。向代码中添加一个映射，以便可以根据纹理字符串名称检查和重用SKTexture。