SKSpriteNode replace with SKTexture

Question

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

我想按照SKPhysicsBody文档中的建议去做。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]))
}

Answer 1

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

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]))
}