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我的模拟中发生了不必要的碰撞。我的模拟有以下几组：
TeethTop（这是一组对象）
TeethBottom（这是一组对象）
球（在游戏中移动的主要对象）
线（偶尔绘制的一条线仅用于检测用户是否刷到牙齿）
边界（屏幕边界）
以下是我需要的规则
基本上发生的是它们是两排牙齿，顶部和底部。他们做自己的事情，成为一个舞台。墙壁是一样的。球在嘴里移动就像一个撞击并咬住牙齿的平台。
在滑动时，在滑动后创建SKPhysicsNode线，并检测用户向哪个牙齿滑动（****可能是更好的方式，然后为滑动线制作SKPhyiscsNode ...我仍然需要检测是否用户在牙齿方向上滑动）。一切都是花花公子一段时间，然后当顶部的牙齿从底部撞到牙齿时，嘴巴闭合并停止。
我把所有东西都设置得很好，因为
BottomTeethGroup = 10
TopTeethGroup = 31
playergroup = 2
wallgroup = 1
lineleart = 99
我添加该行时会出现问题。检测到的所有内容都可以正常工作，直到您添加该行。不幸的是，球与线路相撞产生了一种物理反应，这并不是一件好事！球不应该与线发生碰撞！
我认为他们的方式是一些选择：
编辑：也许我对事物的定义是有缺陷的，所以这就是我认为联系人的工作方式：
我尝试过的解决方案列表：
编辑：
我一直在尝试一堆东西，但没有一个能奏效。我厌倦了，创造了一个有四个球的新项目。基本上，您将每个球设置为特定的组类型并运行模拟。我有它所以它们是所有类别的顶部变量。如果模拟设置正确（我相信它是），程序WI模拟如果顶部的所有值都正确将会发生什么。
您还可以找到以下代码
//
// GameScene.swift
// CollisionTesting
//
// Created on 8/13/15.
// Copyright (c) 2015 BroccoliPresentations. All rights reserved.
//
import SpriteKit
enum type
{
case _toptooth
case _bottomtooth
case _ball
case _line
case _boundary
case _none
}
class GameScene: SKScene {
override func didMoveToView(view: SKView) {
//The physics categories for each of them
var topteethcategory:UInt32 = (0x01 << 1)
var bottomteethcategory:UInt32 = (0x01 << 2)
var ballcategory:UInt32 = (0x01 << 3)
var boundriesgroup:UInt32 = (0x01 << 4)
var linegroup:UInt32 = (0x01 << 5)
//When collision reports should be written up
var topteethcolisionreport:UInt32 = bottomteethcategory
var bottomteethcollisionreport:UInt32 = topteethcategory
var ballcollisionreport:UInt32 = bottomteethcategory | topteethcategory
var boundriescollisionreport:UInt32 = 0
var linecollisionreport:UInt32 = topteethcategory | bottomteethcategory
//When they should bounce off of eachother
var topteethphysics:UInt32 = bottomteethcategory
var bottomteethphysics:UInt32 = topteethcategory
var ballphysics:UInt32 = bottomteethcategory | topteethcategory | boundriesgroup
var boundriesphysics:UInt32 = boundriesgroup
var linecollisionphysics:UInt32 = linegroup
//Here you can set what tope of object each color is
var blue:type = type._toptooth
var red:type = type._bottomtooth
var yellow:type = type._ball
var green:type = type._none
var xy = CGRectGetMidX(self.frame) * 1.5
var ball1 = SKSpriteNode(texture: SKTexture(imageNamed: "Blue"))
ball1.position = CGPoint(x: xy, y:CGRectGetMidY(self.frame));
ball1.size = CGSizeMake(100, 100)
ball1.physicsBody?.affectedByGravity = false
ball1.physicsBody = SKPhysicsBody(circleOfRadius: 50)
ball1.physicsBody?.velocity = CGVector(dx: -100, dy: 0)
var ball2 = SKSpriteNode(texture: SKTexture(imageNamed: "Red"))
ball2.position = CGPoint(x:xy / 2, y:CGRectGetMidY(self.frame));
ball2.size = CGSizeMake(100, 100)
ball2.physicsBody?.affectedByGravity = false
ball2.physicsBody = SKPhysicsBody(circleOfRadius: 50)
ball2.physicsBody?.velocity = CGVector(dx: 100, dy: 0)
var ball3 = SKSpriteNode(texture: SKTexture(imageNamed: "Yellow"))
ball3.position = CGPoint(x:((xy / 4) + xy) / 2, y:CGRectGetMidY(self.frame) / 2);
ball3.size = CGSizeMake(100, 100)
ball3.physicsBody?.affectedByGravity = false
ball3.physicsBody = SKPhysicsBody(circleOfRadius: 50)
ball3.physicsBody?.velocity = CGVector(dx: 0, dy: 100)
var ball4 = SKSpriteNode(texture: SKTexture(imageNamed: "Green"))
ball4.position = CGPoint(x:((xy / 4) + xy) / 2, y:CGRectGetMidY(self.frame) * 1.5);
ball4.size = CGSizeMake(100, 100)
ball4.physicsBody?.affectedByGravity = false
ball4.physicsBody = SKPhysicsBody(circleOfRadius: 50)
ball4.physicsBody?.velocity = CGVector(dx: 0, dy: -100)
self.addChild(ball1)
self.addChild(ball2)
self.addChild(ball3)
self.addChild(ball4)
switch (blue)
{
case type._toptooth:
ball1.physicsBody?.categoryBitMask = topteethcategory
ball1.physicsBody?.collisionBitMask = topteethphysics
ball1.physicsBody?.contactTestBitMask = topteethcolisionreport
case type._bottomtooth:
ball1.physicsBody?.categoryBitMask = bottomteethcategory
ball1.physicsBody?.collisionBitMask = bottomteethphysics
ball1.physicsBody?.contactTestBitMask = bottomteethcollisionreport
case type._ball:
ball1.physicsBody?.categoryBitMask = ballcategory
ball1.physicsBody?.collisionBitMask = ballphysics
ball1.physicsBody?.contactTestBitMask = ballcollisionreport
case type._boundary:
ball1.physicsBody?.categoryBitMask = boundriesgroup
ball1.physicsBody?.collisionBitMask = boundriesphysics
ball1.physicsBody?.contactTestBitMask = boundriescollisionreport
case type._line:
ball1.physicsBody?.categoryBitMask = linegroup
ball1.physicsBody?.collisionBitMask = linecollisionphysics
ball1.physicsBody?.contactTestBitMask = linecollisionreport
case type._none:
ball1.position = CGPointMake(100000, 10000)
}
switch (red)
{
case type._toptooth:
ball2.physicsBody?.categoryBitMask = topteethcategory
ball2.physicsBody?.collisionBitMask = topteethphysics
ball2.physicsBody?.contactTestBitMask = topteethcolisionreport
case type._bottomtooth:
ball2.physicsBody?.categoryBitMask = bottomteethcategory
ball2.physicsBody?.collisionBitMask = bottomteethphysics
ball2.physicsBody?.contactTestBitMask = bottomteethcollisionreport
case type._ball:
ball2.physicsBody?.categoryBitMask = ballcategory
ball2.physicsBody?.collisionBitMask = ballphysics
ball2.physicsBody?.contactTestBitMask = ballcollisionreport
case type._boundary:
ball2.physicsBody?.categoryBitMask = boundriesgroup
ball2.physicsBody?.collisionBitMask = boundriesphysics
ball2.physicsBody?.contactTestBitMask = boundriescollisionreport
case type._line:
ball2.physicsBody?.categoryBitMask = linegroup
ball2.physicsBody?.collisionBitMask = linecollisionphysics
ball2.physicsBody?.contactTestBitMask = linecollisionreport
case type._none:
ball2.position = CGPointMake(100000, 10000)
}
switch (blue)
{
case type._toptooth:
ball3.physicsBody?.categoryBitMask = topteethcategory
ball3.physicsBody?.collisionBitMask = topteethphysics
ball3.physicsBody?.contactTestBitMask = topteethcolisionreport
case type._bottomtooth:
ball3.physicsBody?.categoryBitMask = bottomteethcategory
ball3.physicsBody?.collisionBitMask = bottomteethphysics
ball3.physicsBody?.contactTestBitMask = bottomteethcollisionreport
case type._ball:
ball3.physicsBody?.categoryBitMask = ballcategory
ball3.physicsBody?.collisionBitMask = ballphysics
ball3.physicsBody?.contactTestBitMask = ballcollisionreport
case type._boundary:
ball3.physicsBody?.categoryBitMask = boundriesgroup
ball3.physicsBody?.collisionBitMask = boundriesphysics
ball3.physicsBody?.contactTestBitMask = boundriescollisionreport
case type._line:
ball3.physicsBody?.categoryBitMask = linegroup
ball3.physicsBody?.collisionBitMask = linecollisionphysics
ball3.physicsBody?.contactTestBitMask = linecollisionreport
case type._none:
ball3.position = CGPointMake(100000, 10000)
}
switch (green)
{
case type._toptooth:
ball4.physicsBody?.categoryBitMask = topteethcategory
ball4.physicsBody?.collisionBitMask = topteethphysics
ball4.physicsBody?.contactTestBitMask = topteethcolisionreport
case type._bottomtooth:
ball4.physicsBody?.categoryBitMask = bottomteethcategory
ball4.physicsBody?.collisionBitMask = bottomteethphysics
ball4.physicsBody?.contactTestBitMask = bottomteethcollisionreport
case type._ball:
ball4.physicsBody?.categoryBitMask = ballcategory
ball4.physicsBody?.collisionBitMask = ballphysics
ball4.physicsBody?.contactTestBitMask = ballcollisionreport
case type._boundary:
ball4.physicsBody?.categoryBitMask = boundriesgroup
ball4.physicsBody?.collisionBitMask = boundriesphysics
ball4.physicsBody?.contactTestBitMask = boundriescollisionreport
case type._line:
ball4.physicsBody?.categoryBitMask = linegroup
ball4.physicsBody?.collisionBitMask = linecollisionphysics
ball4.physicsBody?.contactTestBitMask = linecollisionreport
case type._none:
ball4.position = CGPointMake(100000, 10000)
}
physicsWorld.gravity = CGVector(dx: 0, dy: 0)
}
override func update(currentTime: CFTimeInterval) {
/* Called before each frame is rendered */
}
}
//nothing set they collide to eachother
//contactTestbitmask has nothing to do with bumping against eachother
//Category is the most important it gives it a type
//The other two decide when reactions happen, either physical or in code
//Collision bitmask is a list of groups that it actually should collide with
//Contacttestbitmask is list of groups that can trigger the code
答案 0 :(得分：0)
我已经弄明白了！我的问题是我把事情弄得太复杂了。我实际上并不需要所有这些组！这就是我做的！
var stage:UInt32 = (0x1 << 1)
var player:UInt32 = (0x1 << 2)
var sensors:UInt32 = (0x1 << 3)
//Physics collision bitmask
var p_stage:UInt32 = 0
var p_player:UInt32 = 0 | stage
var p_sensors:UInt32 = 0
//Test bitmask
var t_stage:UInt32 = stage
var t_player:UInt32 = stage
var t_sensors:UInt32 = stage
我实际上并不需要像我想的那样多的团队！但是我确实必须在节点名称中存储一些数据，以便告诉它是从顶部还是底部或哪一行，但总体来说它工作得很棒！
谢谢那些看过一切的人，这真的意味着很多！
我发现奇怪的是做了
(0x1 << 1)
(0x1 << 2)
(0x1 << 3)
比
更好1
2
3
我想我真的不知道我在做什么（0x1＆lt;＆lt; 1），但是我在其他地方看到并复制了它！