我希望我的角色在同时按下两个按钮时跳起来。我已经尝试过了:
if rightButton.contains(location) && leftButton.contains(location) {
character.physicsBody?.applyImpulse(CGVector(dx: 0, dy: 50))
}
一种方法是:
我将在这里让您使用一些伪代码,希望对您有所帮助。
func RightBtnClick()->Void{
rightBtnPressed = true
}
func LeftBtnClick()->Void{
leftBtnPressed = true
}
func Start()->Void{
rightBtnTimer = 0
leftBtnTimer = 0
}
func Update(deltatime ms:float)->Void{
if(rightBtnPressed){
rightBtnTimer += ms;
if(rightBtnTimer>100){
rightBtnTimer = 0
rightBtnPressed=false
}
}
if(leftBtnPressed){
leftBtnTimer += ms;
if(leftBtnTimer>100){
leftBtnTimer = 0
leftBtnPressed=false
}
}
// Lastly let's check if both are pressed.
if(leftBtnPressed && rightBtnPressed){
DoStuff()
}
}
首先,请确保在GameViewController.swift
中启用了多点触控。
class GameViewController: UIViewController
{
override func viewDidLoad()
{
super.viewDidLoad()
// ...
if let view = self.view as! SKView?
{
// ...
view.isMultipleTouchEnabled = true
}
}
}
在GameScene
中为按钮命名。点击时,我们将创建一个列表,列出您的手指触摸到的每个节点的名称。如果列表同时包含左右按钮,则表示他同时按下了两个按钮。
class GameScene: SKScene
{
override func didMove(to view: SKView)
{
// add name to each button
left_button.name = "left_button"
right_button.name = "right_button"
}
func buttons_touched(_ touches: Set<UITouch>) -> [String]
{
// get the list of buttons we touched on each tap
var button_list : [String] = []
for touch in touches
{
let positionInScene = touch.location(in: self)
let touchedNode = self.nodes(at: positionInScene)
let buttons = touchedNode.compactMap { (node) -> String in
node.name ?? ""
}.filter({$0 != ""})
button_list += buttons
}
return button_list
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?)
{
let buttons_tapped = buttons_touched(touches)
if buttons_tapped.contains("right_button") && buttons_tapped.contains("left_button")
{
// jump code
}
}
}