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ios - SKSpriteNode 替换为 SKTexture

问题描述

我的问题是，当我玩游戏时，即使敌人没有碰到我的角色，而是飞得很近，我也会失去生命。我明白问题是我角色的透明空间与敌人的透明空间接触。

我想按照SKPhysicsBody 文档中的建议进行操作。如何使用我当前的代码实现这一点？

func madEnemy() {

    let randomNumber = Int.random(in: 1..<6)

    let enemy = SKSpriteNode(imageNamed: "enemy\(randomNumber)")

    enemy.position = CGPoint(
        x: cameraRect.maxX + enemy.size.width/2,
        y: CGFloat.random(
            min: cameraRect.minY + enemy.size.height/2,
            max: cameraRect.maxY - enemy.size.height/2))
    enemy.zPosition = 50
    enemy.name = "enemy"
    addChild(enemy)

    let actionMove =
        SKAction.moveBy(x: -(size.width + enemy.size.width), y: 0, duration: 2.0)
    let actionRemove = SKAction.removeFromParent()
    enemy.run(SKAction.sequence([actionMove, actionRemove]))
}

标签： iosswiftsprite-kitskspritenodesktexture

解决方案

您只需要SKTexture先从图像创建一个对象，然后使用该纹理创建一个对象SKSpriteNode，以便使用该纹理来调整SKPhysicsBody节点大小。

func madEnemy() {

    let randomNumber = Int.random(in: 1..<6)

    let enemyTexture = SKTexture(imageNamed: "enemy\(randomNumber)")
    let enemy = SKSpriteNode(texture: enemyTexture)
    enemy.physicsBody = SKPhysicsBody(texture: enemyTexture, size: CGSize(width: enemy.size.width, height: enemy.size.height))

    enemy.position = CGPoint(
        x: cameraRect.maxX + enemy.size.width/2,
        y: CGFloat.random(
            min: cameraRect.minY + enemy.size.height/2,
            max: cameraRect.maxY - enemy.size.height/2))
    enemy.zPosition = 50
    enemy.name = "enemy"
    addChild(enemy)

    let actionMove =
        SKAction.moveBy(x: -(size.width + enemy.size.width), y: 0, duration: 2.0)
    let actionRemove = SKAction.removeFromParent()
    enemy.run(SKAction.sequence([actionMove, actionRemove]))
}

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