ios - SKSpriteNode 替换为 SKTexture

Question

我的问题是，当我玩游戏时，即使敌人没有触及我的角色，而是飞得离他很近，我也会失去生命。我了解到问题是我角色的透明空间与敌人的透明空间接触了。

我想按照 SKPhysicsBody documentation 中的建议进行操作。如何使用我当前的代码来实现这个？

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]))
}

Answer 1

您只需首先从图像创建一个 SKTexture 对象，然后使用该纹理创建一个 SKSpriteNode ，以便使用该纹理调整 SKPhysicsBody 的大小 或您的节点。

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]))
}