Пользовательский физический корпус добавляет ненужную дополнительную строку

Question

Я создал узел с тремя физическими физическими органами, однако проблема заключается в том, что для каждого физического тела есть дополнительная линия.

У меня есть возможность удалить эти строки? Линии, которые я хотел бы удалить, обведены красным цветом.

Я сделал физические тела с this editor.

С путем я создал этот код (скор комплект & спрайта):

//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) 

Picture of the problem

Answer 1

Нашел! Я сделал несколько дополнительных исследований, и появилось сообщение this.

Решение:

Использование bodyWithEdgeLoopFromPath: или bodyWithEdgeChainFromPath:, чтобы иметь возможность создавать вогнутые формы столкновения. Эти тела не будут динамическими и не смогут двигаться сами по себе, но они являются идеальным решением для произвольной формы столкновения со статическим игровым полем .