所以我正在创建一个空气曲棍球比赛，有5个主要的SKSpriteNodes。我需要检测冰球与goal1和goal2之间的碰撞。当它确实检测到碰撞时，需要将1添加到scoreLeft或scoreRight，它们是SKLabelNode的。我使用了Gamescene.sks文件来制作视觉表示。我评论了didBeginContact，因为它不起作用。先感谢您。
class GameScene: SKScene, SKPhysicsContactDelegate {
let paddle1CategoryName = "paddle1"
let paddle2CategoryName = "paddle2"
let puckCategoryName = "puck"
let goal1CategoryName = "goal1"
let goal2CategoryName = "goal2"
let scoreLeftCategoryName = "scoreLeft"
let scoreRightCategoryName = "scoreRight"
var isFingerOnPaddle1 = false
var isFingerOnPaddle2 = false
var paddle1Category: UInt32 = 0x1 << 0
var paddle2Category: UInt32 = 0x1 << 1
var puckCategory: UInt32 = 0x1 << 2
var goal1Category: UInt32 = 0x1 << 3
var goal2Category: UInt32 = 0x1 << 4
override func didMoveToView(view: SKView) {
/* Setup your scene here */
let borderBody = SKPhysicsBody(edgeLoopFromRect: self.frame)
borderBody.friction = 0
self.physicsBody = borderBody
let paddle1 = childNodeWithName(paddle1CategoryName) as! SKSpriteNode
let paddle2 = childNodeWithName(paddle2CategoryName) as! SKSpriteNode
let puck = childNodeWithName(puckCategoryName) as! SKSpriteNode
let goal1 = childNodeWithName(goal1CategoryName) as! SKSpriteNode
let goal2 = childNodeWithName(goal2CategoryName) as! SKSpriteNode
let scoreLeft = childNodeWithName(scoreLeftCategoryName) as! SKLabelNode
let scoreRight = childNodeWithName(scoreRightCategoryName) as! SKLabelNode
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
var touch = touches.first! as UITouch
var location = touch.locationInNode(self)
if let body = physicsWorld.bodyAtPoint(location){
if body.node!.name == paddle1CategoryName {
print("The game has begun.")
isFingerOnPaddle1 = true
} else if body.node!.name == paddle2CategoryName{
print("The game has begun.")
isFingerOnPaddle2 = true
}
}
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
let paddle1 = childNodeWithName(paddle1CategoryName) as! SKSpriteNode
let paddle2 = childNodeWithName(paddle2CategoryName) as! SKSpriteNode
let puck = childNodeWithName(puckCategoryName) as! SKSpriteNode
let goal1 = childNodeWithName(goal1CategoryName) as! SKSpriteNode
let goal2 = childNodeWithName(goal2CategoryName) as! SKSpriteNode
var touch = touches.first! as UITouch
var touchLocation = touch.locationInNode(self)
var previousLocation = touch.previousLocationInNode(self)
if isFingerOnPaddle1{
let paddle1X = paddle1.position.x + (touchLocation.x - previousLocation.x)
let paddle1Y = paddle1.position.y + (touchLocation.y - previousLocation.y)
if (touchLocation.x <= paddle1.position.x && (touchLocation.y <= paddle1.position.y || touchLocation.y >= paddle1.position.y)){
paddle1.position = CGPoint(x: paddle1X, y: paddle1Y)
}
}
if isFingerOnPaddle2{
let paddle2X = paddle2.position.x + (touchLocation.x - previousLocation.x)
let paddle2Y = paddle2.position.y + (touchLocation.y - previousLocation.y)
if (touchLocation.x >= paddle2X && (touchLocation.y >= paddle2Y || touchLocation.y < paddle2.position.y)){
paddle2.position = CGPoint(x: paddle2X, y: paddle2Y)
}
}
}
/*
func didBeginContact(contact: SKPhysicsContact) {
let scoreLeft = childNodeWithName(scoreLeftCategoryName) as! SKLabelNode
let scoreRight = childNodeWithName(scoreRightCategoryName) as! SKLabelNode
var score = 0
let contactMask = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
switch contactMask{
case puckCategory | goal1Category:
if contact.bodyA.categoryBitMask == puckCategory{
puckCategory = contact.bodyA.categoryBitMask
goal1Category = contact.bodyB.categoryBitMask
score++
scoreRight.text = "\(score)"
}else{
puckCategory = contact.bodyB.categoryBitMask
goal1Category = contact.bodyA.categoryBitMask
score++
scoreRight.text = "\(score)"
}
case puckCategory | goal2Category:
if contact.bodyA.categoryBitMask == puckCategory{
puckCategory = contact.bodyA.categoryBitMask
goal2Category = contact.bodyB.categoryBitMask
score++
scoreLeft.text = "\(score)"
}else{
puckCategory = contact.bodyB.categoryBitMask
goal2Category = contact.bodyA.categoryBitMask
score++
scoreLeft.text = "\(score)"
}
default:
// Nobody expects this, so satisfy the compiler and catch
// ourselves if we do something we didn't plan to
fatalError("other collision: \(contactMask)")
}
}*/
override func update(currentTime: CFTimeInterval) {
/* Called before each frame is rendered */
}
}
答案 0 :(得分：1)
一个问题是在函数开头使用本地package com.ggl.testing;
import java.util.Scanner;
public class Calculator3 implements Runnable {
private boolean again = true;
private Scanner keyIn = new Scanner(System.in);
public static void main(String args[]) {
new Calculator3().run();
}
@Override
public void run() {
while (again) {
double in1 = readDouble("Type your first number: ");
double in2 = readDouble("Type your second number: ");
char operator = readChar("Type your operator: ");
System.out.println("Your result is: "
+ operation(in1, in2, operator));
timer();
char yOrN = readChar("Do you want to do this again? [Y | N] ");
if (Character.toLowerCase(yOrN) != 'y') {
System.out.println("Well, get out of here");
again = false;
}
}
keyIn.close();
}
public double readDouble(String s) {
System.out.print(s);
return keyIn.nextDouble();
}
public char readChar(String s) {
System.out.print(s);
return keyIn.next().charAt(0);
}
public double operation(double in1, double in2, char operator) {
switch (operator) {
case '+':
return in1 + in2;
case '-':
return in1 - in2;
case '/':
return in1 / in2;
case '*':
return in1 * in2;
default:
return 0D;
}
}
public void timer() {
try {
Thread.sleep(1500);
} catch (InterruptedException e) {
}
}
}
。去掉它。分数应存储在游戏模型中，以便可以应用关于获胜的逻辑但匹配您的代码，至少这样做。
var score = 0此外还有
的问题if let score = Int(scoreLeft.text) {
scoreLeft.text = "\(score + 1)"
}
您所说的是 case puckCategory | goal1Category:
if contact.bodyA.categoryBitMask == puckCategory{
puckCategory = contact.bodyA.categoryBitMask
等于contact.bodyA.categoryBitMask，然后将puckCategory设为puckCategory。这是一个无操作，没有任何变化，更重要的是，您不想更改与您的子节点进行比较的位掩码。制作contact.bodyA.categoryBitMask，puckCategory和goal1Categoy常量。祝你好运。
跟进OP评论：
因此，抛弃设置类别掩码变量的goal2Category中的代码有两个原因。 1）将didBeginContact之类的变量设置为相同的值是浪费和混乱的。 2）由于puckCatergory之类的变量与子节点位掩码进行比较，如果它们发生了变化，那将是一场灾难。该功能应如下所示。还要确保在你走得太远之前为其他类型的联系人添加处理程序。
puckCategory