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我剛剛完成構建移動應用程序遊戲，現在想嘗試在遊戲中左右移動障礙物（本示例中爲雲）。有什麼建議麼？如何在SpriteKit中製作移動障礙
func createClouds() -> [SKSpriteNode]{
var clouds = [SKSpriteNode]();
for _ in 0 ..< 2 {
let cloud1 = SKSpriteNode(imageNamed: "Cloud 1")
cloud1.name = "1"
let cloud2 = SKSpriteNode(imageNamed: "Cloud 2")
cloud2.name = "2"
let cloud3 = SKSpriteNode(imageNamed: "Cloud 3")
cloud3.name = "3"
let darkCloud = SKSpriteNode(imageNamed: "Dark Cloud")
darkCloud.name = "Dark Cloud"
cloud1.xScale = 0.9
cloud1.yScale = 0.9
cloud2.xScale = 0.9
cloud2.yScale = 0.9
cloud3.xScale = 0.9
cloud3.yScale = 0.9
darkCloud.xScale = 0.9
darkCloud.yScale = 0.9
cloud1.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: cloud1.size.width - 5, height: cloud1.size.height - 6));
cloud1.physicsBody?.affectedByGravity = false;
cloud1.physicsBody?.restitution = 0;
cloud1.physicsBody?.categoryBitMask = ColliderType.Cloud;
cloud1.physicsBody?.collisionBitMask = ColliderType.Player;
cloud2.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: cloud2.size.width - 5, height: cloud2.size.height - 6));
cloud2.physicsBody?.affectedByGravity = false;
cloud2.physicsBody?.restitution = 0;
cloud2.physicsBody?.categoryBitMask = ColliderType.Cloud;
cloud2.physicsBody?.collisionBitMask = ColliderType.Player;
cloud3.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: cloud3.size.width - 5, height: cloud3.size.height - 6));
cloud3.physicsBody?.affectedByGravity = false;
cloud3.physicsBody?.restitution = 0;
cloud3.physicsBody?.categoryBitMask = ColliderType.Cloud;
cloud3.physicsBody?.collisionBitMask = ColliderType.Player;
darkCloud.physicsBody = SKPhysicsBody(rectangleOf: darkCloud.size)
darkCloud.physicsBody?.affectedByGravity = false;
darkCloud.physicsBody?.categoryBitMask = ColliderType.DarkCloudAndCollectables;
darkCloud.physicsBody?.collisionBitMask = ColliderType.Player;
clouds.append(cloud1)
clouds.append(cloud2)
clouds.append(cloud3)
clouds.append(darkCloud)
}
clouds = shuffle(cloudsArray: clouds);
return clouds
}
func arrangeCloudsInScene(scene: SKScene, distanceBetweenClouds: CGFloat, center: CGFloat, minX: CGFloat, maxX: CGFloat, player: Player, initialClouds: Bool) {
var clouds = createClouds()
if initialClouds{
while(clouds[0].name == "Dark Cloud") {
clouds = shuffle(cloudsArray: clouds);
}
}
var positionY = CGFloat();
if initialClouds {
positionY = center - 100;
} else {
positionY = lastCloudPositionY;
}
var random = 0;
for i in 0...clouds.count - 1 {
var randomX = CGFloat();
if random == 0 {
randomX = randomBetweenNumbers(firstNum: center + 90, secondNum: maxX);
random = 1;
} else if random == 1{
randomX = randomBetweenNumbers(firstNum: center - 90, secondNum: minX)
random = 0;
}
clouds[i].position = CGPoint(x: randomX, y: positionY);
clouds[i].zPosition = 3;
if !initialClouds {
if Int(randomBetweenNumbers(firstNum: 0, secondNum: 7)) >= 3 {
if clouds[i].name != "Dark Cloud" {
let collectable = collectableController.getCollectable();
collectable.position = CGPoint(x: clouds[i].position.x, y: clouds[i].position.y + 60);
scene.addChild(collectable);
}
}
}
如果需要，我可以提供更多的代碼示例，但我確信它對上述示例有某種意義。謝謝大家！