如何应用SPRITEKIT的CAMERA实现游戏中的ENDLESS无限循环背景

A Tutorial For How To Use SpriteKit Camera Making Endless Background

Player运用Camera节点向前移动的效果

向前舞动

命为SpriteNode为player

player的Custom Class 为自定义Node

拖动Camera 进场景中

命名为mainCamera,相机Camera的Position(0,0) ,Zposition为1

设置Scene的Camera为mainCamera

camera的节点移动到2048(self.size.width)的时候，把红色框内的节点移动到最右边( node.position.x += self.size.width * SCENE_NUMBERS)

/// 查找所有命名为ground的精灵节点 enumerateChildNodes(withName: "//ground") { (node, _ ) in /// 如果当前的节点 + scene.size.with < 则移动节点 if node.position.x + self.size.width < camera.position.x { node.position.x += self.size.width * SCENE_NUMBERS /// 更新节点的位置 } }

完整的代码如下：

// // GameScene.swift // CameraEndless // // Created by // Copyright © 2018 iFiero. All rights reserved. // import SpriteKit import GameplayKit public let CAMERA_MOVE_XPOS:CGFloat = 12 /// 相机X-Axis移动的尺寸; public let SCENE_NUMBERS:CGFloat = 2.0 /// 有几个场景scene class GameScene: SKScene { private var player = PlayerClass() /// 初始化自定义节点 private var mainCamera:SKCameraNode! private var ground:SKSpriteNode! /// 地板 private var bg:SKSpriteNode! /// 背景 private var cloud:SKSpriteNode! /// 云 cloud override func didMove(to view: SKView) { initUI() /// 初始化Scene里的各个精灵节点 initCamera() /// 初始化相机节点; } func initUI(){ /// player名称为GameScene.sks 上自行命名的名称 player = childNode(withName: "player") as! PlayerClass player.initPlayer() /// 开始Wobbing ground = childNode(withName: "ground") as! SKSpriteNode bg = childNode(withName: "bg") as! SKSpriteNode cloud = childNode(withName: "cloud") as! SKSpriteNode } func initCamera(){ mainCamera = childNode(withName: "mainCamera") as! SKCameraNode } /// 移动节点 func moveSprites(camera:SKCameraNode){ /// 查找所有命名为ground的精灵节点 enumerateChildNodes(withName: "//ground") { (node, _ ) in /// 如果当前的节点 + scene.size.with < 则移动节点 if node.position.x + self.size.width < camera.position.x { node.position.x += self.size.width * SCENE_NUMBERS /// 更新节点的位置 } } /// 查找bg enumerateChildNodes(withName: "//bg") { (node, _) in if node.position.x + self.size.width < camera.position.x { node.position.x += self.size.width * SCENE_NUMBERS } } ///查找所有云 enumerateChildNodes(withName: "cloud") { (node, _) in if node.position.x + self.size.width < camera.position.x { node.position.x += self.size.width * SCENE_NUMBERS } } } override func update(_ currentTime: TimeInterval) { mainCamera.position.x += CAMERA_MOVE_XPOS /// 向前移动; player.position.x += CAMERA_MOVE_XPOS /// player向右移动的速度和camera的速度一致 moveSprites(camera: mainCamera) /// 传入相机节点 } }

更多教程：

源代码传送门：

GitHub传送门：https://github.com/apiapia/CameraEndlessWithSpriteKitTutorial