[英]Unable to move sprite left or right in SpriteKit
https://github.com/bmh3110/JackTheGiantGame
觸摸屏幕時,我無法向左或向右移動我的精靈。 我剛剛開始這個游戲,我什至無法讓它工作。 我已經有這個問題幾天了,它變得非常令人沮喪。
GameplayScene.swift
import SpriteKit
class GameplayScene: SKScene {
var player : Player?
var canMove = false
var moveLeft = false
var center : CGFloat?
override func didMoveToView(view: SKView) {
center = (self.scene?.size.width)! / (self.scene?.size.height)!
player = self.childNodeWithName("Player") as? Player!
}
override func update(currentTime: NSTimeInterval) {
managePlayer()
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch in touches {
let location = touch.locationInNode(self)
if location.x > center {
moveLeft = false
} else {
moveLeft = true
}
}
canMove = true
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
}
func managePlayer() {
if canMove {
player?.movePlayer(moveLeft)
}
}
}
Player.swift
import SpriteKit
class Player: SKSpriteNode {
func movePlayer(moveLeft: Bool) {
if moveLeft {
self.position.x = self.position.x - 7
} else {
self.position.x = self.position.x + 7
}
}
}
在touchesEnded
函數中設置canMove = false
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