我已经制作了一个包含三个自定义物理实体的节点，但问题是每个物理主体都有一个额外的线。
我可以删除这些行吗？我要删除的行用红色圈出来。
我用this editor制作了物理机构。
通过我创建此代码的路径（swift＆amp; sprite kit）：
//Wheel
let wheel = SKSpriteNode(imageNamed: "wheel")
let scaleWheel = frame.width / wheel.frame.width * 0.8
wheel.name = "wheel"
wheel.position = view.center
//Scale constants
let sprite = SKSpriteNode()
sprite.position = CGPointMake(CGRectGetMidX(frame), CGRectGetMidY(frame))
let offsetX: CGFloat = sprite.frame.size.width * sprite.anchorPoint.x
let offsetY: CGFloat = sprite.frame.size.height * sprite.anchorPoint.y
//path
let path: CGMutablePathRef = CGPathCreateMutable()
CGPathMoveToPoint(path, nil, -172 - offsetX, 143 - offsetY)
CGPathAddLineToPoint(path, nil, -151 - offsetX, 122 - offsetY)
CGPathAddLineToPoint(path, nil, -167 - offsetX, 100 - offsetY)
CGPathAddLineToPoint(path, nil, -178 - offsetX, 81 - offsetY)
CGPathAddLineToPoint(path, nil, -186 - offsetX, 60 - offsetY)
CGPathAddLineToPoint(path, nil, -191 - offsetX, 38 - offsetY)
CGPathAddLineToPoint(path, nil, -193 - offsetX, 16 - offsetY)
CGPathAddLineToPoint(path, nil, -193 - offsetX, -7 - offsetY)
CGPathAddLineToPoint(path, nil, -193 - offsetX, -25 - offsetY)
CGPathAddLineToPoint(path, nil, -188 - offsetX, -47 - offsetY)
CGPathAddLineToPoint(path, nil, -182 - offsetX, -69 - offsetY)
CGPathAddLineToPoint(path, nil, -173 - offsetX, -88 - offsetY)
CGPathAddLineToPoint(path, nil, -164 - offsetX, -105 - offsetY)
CGPathAddLineToPoint(path, nil, -151 - offsetX, -124 - offsetY)
CGPathAddLineToPoint(path, nil, -134 - offsetX, -143 - offsetY)
CGPathAddLineToPoint(path, nil, -150 - offsetX, -168 - offsetY)
CGPathAddLineToPoint(path, nil, -170 - offsetX, -147 - offsetY)
CGPathAddLineToPoint(path, nil, -190 - offsetX, -121 - offsetY)
CGPathAddLineToPoint(path, nil, -207 - offsetX, -89 - offsetY)
CGPathAddLineToPoint(path, nil, -218 - offsetX, -58 - offsetY)
CGPathAddLineToPoint(path, nil, -224 - offsetX, -23 - offsetY)
CGPathAddLineToPoint(path, nil, -224 - offsetX, 25 - offsetY)
CGPathAddLineToPoint(path, nil, -216 - offsetX, 62 - offsetY)
CGPathAddLineToPoint(path, nil, -208 - offsetX, 85 - offsetY)
CGPathAddLineToPoint(path, nil, -192 - offsetX, 116 - offsetY)
CGPathCloseSubpath(path)
//pathTwo
let pathTwo: CGMutablePathRef = CGPathCreateMutable()
CGPathMoveToPoint(pathTwo, nil, -93 - offsetX, 170 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -117 - offsetX, 193 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -93 - offsetX, 205 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -66 - offsetX, 215 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -43 - offsetX, 221 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -21 - offsetX, 224 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -2 - offsetX, 226 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 22 - offsetX, 226 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 46 - offsetX, 221 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 63 - offsetX, 216 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 85 - offsetX, 209 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 111 - offsetX, 197 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 137 - offsetX, 179 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 160 - offsetX, 160 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 181 - offsetX, 135 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 200 - offsetX, 106 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 214 - offsetX, 74 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 223 - offsetX, 37 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 192 - offsetX, 37 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 186 - offsetX, 65 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 170 - offsetX, 99 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 139 - offsetX, 137 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 95 - offsetX, 169 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, 46 - offsetX, 191 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -4 - offsetX, 195 - offsetY)
CGPathAddLineToPoint(pathTwo, nil, -61 - offsetX, 183 - offsetY)
CGPathCloseSubpath(pathTwo)
//pathThree
let pathThree: CGMutablePathRef = CGPathCreateMutable()
CGPathMoveToPoint(pathThree, nil, 192,-38 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 223,-38 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 219,-61 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 209,-91 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 196,-116 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 176,-145 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 149,-172 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 111,-198 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 79,-213 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 46,-222 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 15,-227 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -19,-226 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -49,-222 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -71,-216 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -87,-209 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -72,-183 - offsetY)
CGPathAddLineToPoint(pathThree, nil, -39,-194 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 5,-197 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 52,-189 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 99,-170 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 141,-136 - offsetY)
CGPathAddLineToPoint(pathThree, nil, 176,-87 - offsetY)
CGPathCloseSubpath(pathThree)
//Physics bodies
let bodyOne = SKPhysicsBody(polygonFromPath: path)
let bodyTwo = SKPhysicsBody(polygonFromPath: pathTwo)
let bodyThree = SKPhysicsBody(polygonFromPath: pathThree)
wheel.physicsBody = SKPhysicsBody(bodies: [bodyOne, bodyTwo, bodyThree])
wheel.physicsBody!.angularDamping = 5
wheel.physicsBody?.pinned = true
wheel.physicsBody?.affectedByGravity = false
wheel.physicsBody?.restitution = 1
wheel.setScale(scaleWheel)
addChild(wheel)
答案 0 :(得分：0)
解决方案：
使用
<form class="shoppingform" action="someaction.php" method="get" enctype="multipart/form-data"> Step1: Your details <br> <div class="customername"> <label class="formlabel">Name:</label> <input type="text"> </div> </form>或bodyWithEdgeLoopFromPath:可以创建凹面碰撞形状。这些机构不会 动态的，不能自己移动，但他们是 任意碰撞形状与静态的完美解决方案 球场。
