我的 Sprites 使用 Swift 在 Sprite Kit 中被压缩

Question

我正在使用 Sprite Kit 创建我的第一个游戏。这是一款 Flappy Bird 类型的游戏。左边的图像是今天早些时候游戏的样子。我最终创建了一个全新的项目。我复制了上一个项目的代码并将其粘贴到当前项目中。我也将与上一个项目完全相同的图像放入当前项目中。没有编译错误，一切正常，只是游戏现在看起来像右边的图像。如您所见，图像宽度更小。任何建议将不胜感激，如果您希望我提供此问题中的所有代码，请告诉我，谢谢。

这是射箭场景的全部代码：

//
//  ArcheryScene.swift
//  FlappyBird (swift)
//
//  Created by Brandon Ballard on 1/6/15.
//  Copyright (c) 2015 Brandon Ballard. All rights reserved.
//

import UIKit
import SpriteKit

class ArcheryScene: SKScene, SKPhysicsContactDelegate {

var bird = SKSpriteNode()
var pipeUpTexture = SKTexture()
var pipeDownTexture = SKTexture()
var pipesMoveAndRemove = SKAction()
var score = 0

let pipeGap = 150.0

enum ColliderType:UInt32 {
    case BIRD = 1
    case PIPE = 2
}


override func didMoveToView(view: SKView) {
    /* Setup your scene here */


    backgroundColor = SKColor.cyanColor()

    //physics
    self.physicsWorld.gravity = CGVectorMake(0.0, -15.0);
    self.physicsWorld.contactDelegate = self



    //Bird
    var birdTexture = SKTexture(imageNamed:"Bird")
    birdTexture.filteringMode = SKTextureFilteringMode.Nearest

    bird = SKSpriteNode(texture: birdTexture)
    bird.setScale(0.6)
    bird.position = CGPoint(x: self.frame.width * 0.35 + 20, y: self.frame.size.height * 0.95)

    bird.physicsBody = SKPhysicsBody(circleOfRadius: bird.size.height / 2.0)
    bird.physicsBody?.dynamic = true
    bird.physicsBody?.allowsRotation = true
    bird.physicsBody?.affectedByGravity = true
    bird.physicsBody!.collisionBitMask = ColliderType.BIRD.rawValue
    bird.physicsBody!.contactTestBitMask = ColliderType.PIPE.rawValue
    self.addChild(bird)

    //Ground
    var groundTexture = SKTexture(imageNamed: "Ground")

    var sprite = SKSpriteNode(texture: groundTexture)
    sprite.setScale(2.0)
    sprite.position = CGPointMake(self.size.width / 2, sprite.size.height / 2.0)


    self.addChild(sprite)

    var ground = SKNode()

    ground.position = CGPointMake(0, groundTexture.size().height + 0)
    ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.size.width, groundTexture.size().height * 2.0))
    ground.physicsBody?.dynamic = false
    self.addChild(ground)



    //Pipes

    //Create the Pipes

    pipeUpTexture = SKTexture(imageNamed: "PipeUp")
    pipeDownTexture = SKTexture(imageNamed: "PipeDown")

    //Movement of Pipes

    let distanceToMove = CGFloat(self.frame.size.width + 2.0 * pipeUpTexture.size().width)
    let movePipes = SKAction.moveByX(-distanceToMove, y: 0.0, duration: NSTimeInterval(0.01 * distanceToMove))
    let removePipes = SKAction.removeFromParent()

    pipesMoveAndRemove = SKAction.sequence([movePipes,removePipes])

    //Spawn Pipes

    let spawn = SKAction.runBlock({() in self.spawnPipes()})
    let delay = SKAction.waitForDuration(NSTimeInterval(2.0))
    let spawnThenDelay = SKAction.sequence([spawn,delay])
    let spawnThenDelayForever = SKAction.repeatActionForever(spawnThenDelay)

    self.runAction(spawnThenDelayForever)
}

func spawnPipes() {

    let pipePair = SKNode()
    pipePair.position = CGPointMake(self.frame.size.width + pipeUpTexture.size().width * 2, 0)
    pipePair.zPosition = -10

    let height = UInt32(self.frame.size.height / 4)
    let y = arc4random() % height + height

    var pipeDown = SKSpriteNode(texture: pipeDownTexture)
    pipeDown.setScale(2.0)////////
    pipeDown.position = CGPointMake(3.0, CGFloat(y) + pipeDown.size.height + CGFloat(pipeGap) )

    pipeDown.physicsBody = SKPhysicsBody(rectangleOfSize: pipeDown.size)
    pipeDown.physicsBody?.dynamic = false
    pipeDown.physicsBody!.affectedByGravity = false
    pipeDown.physicsBody!.collisionBitMask = ColliderType.PIPE.rawValue
    pipePair.addChild(pipeDown)

    var pipeUp = SKSpriteNode(texture: pipeUpTexture)
    pipeUp.setScale(2.0)
    pipeUp.position = CGPointMake(0.0, CGFloat(y))

    pipeUp.physicsBody = SKPhysicsBody(rectangleOfSize: pipeUp.size )
    pipeUp.physicsBody?.dynamic = false
    pipeUp.physicsBody!.affectedByGravity = false
    pipeUp.physicsBody!.collisionBitMask = ColliderType.PIPE.rawValue
    pipePair.addChild(pipeUp)

    pipePair.runAction(pipesMoveAndRemove)
    self.addChild(pipePair)

}



func didBeginContact(contact: SKPhysicsContactDelegate) {
    scene?.view?.paused = true
    //gameOver()

}

func createScoreNode() -> SKLabelNode {
    let scoreNode = SKLabelNode(fontNamed: "Brandon Ballard")
    scoreNode.name = "scoreNode"

    let newScore = "\(score)"

    scoreNode.text = newScore
    scoreNode.fontSize = 125
    scoreNode.fontColor = SKColor.cyanColor()
    scoreNode.position = CGPointMake(CGRectGetMidX(self.frame), 58)
    self.addChild(scoreNode)
    return scoreNode
}

func gameOver() {
    let scoreNode = self.createScoreNode()
    self.addChild(scoreNode)
    let fadeOut = SKAction.sequence([SKAction.waitForDuration(3.0), SKAction.fadeOutWithDuration(3.0)])

    let welcomeReturn = SKAction.runBlock({
        let transition = SKTransition.revealWithDirection(SKTransitionDirection.Down, duration: 1.0)
        let welcomeScene = GameScene(fileNamed: "GameScene")
        self.scene!.view?.presentScene(welcomeScene, transition: transition)
    })

    let sequence = SKAction.sequence([fadeOut, welcomeReturn])
    self.runAction(sequence)
}


override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    /* Called when a touch begins */


    for touch: AnyObject in touches {

        let location = touch.locationInNode(self)

        bird.physicsBody?.velocity = CGVectorMake( 0, 0 )
        bird.physicsBody?.applyImpulse(CGVectorMake(0,25))

    }
}

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

Answer 1

解决我的问题所需要做的就是在我的 GameScene 文件中添加一行简单的代码。这是我在解决出现 ArcheryScene 的问题之前在 GameScene 文件中的代码：

welcomeNode?.runAction(fadeAway, completion: {
                let doors = SKTransition.pushWithDirection(SKTransitionDirection.Down, duration: 1.0)
                let archeryScene = ArcheryScene(fileNamed: "ArcheryScene")
                self.view?.presentScene(archeryScene, transition: doors)
            })

我所要做的就是在创建“archeryScene”之后添加这行代码：

archeryScene.scaleMode = .AspectFill

这使图像“适合屏幕尺寸”。苹果使用的“.AspectFill”的确切描述是：

"计算每个维度的缩放因子，选择两者中较大的一个。场景的每个轴都按相同的缩放因子进行缩放。这样可以保证视图的整个区域被填充但可能会导致部分要裁剪的场景。”