¿Cómo crear SKPhysicsBody con agujeros? - ios, swift, sprite-kit, skphysicsbody

Me preguntaba cómo podría crear un SKPhysicsyBody más complejo como este. Quiero golpear contra las partes negras.

Exporté esta forma con PaintCode a un CG Rect.

var barrierpath2Path = UIBezierPath()
barrierpath2Path.moveToPoint(CGPointMake(52, 26))
barrierpath2Path.addLineToPoint(CGPointMake(52, 26))
barrierpath2Path.addCurveToPoint(CGPointMake(26, 52), controlPoint1: CGPointMake(52, 40.36), controlPoint2: CGPointMake(40.36, 52))
barrierpath2Path.addLineToPoint(CGPointMake(26, 52))
barrierpath2Path.addCurveToPoint(CGPointMake(0, 26), controlPoint1: CGPointMake(11.64, 52), controlPoint2: CGPointMake(0, 40.36))
barrierpath2Path.addLineToPoint(CGPointMake(0, 26))
barrierpath2Path.addCurveToPoint(CGPointMake(26, 0), controlPoint1: CGPointMake(0, 11.64), controlPoint2: CGPointMake(11.64, 0))
barrierpath2Path.addLineToPoint(CGPointMake(26, 0))
barrierpath2Path.addCurveToPoint(CGPointMake(52, 26), controlPoint1: CGPointMake(40.36, 0), controlPoint2: CGPointMake(52, 11.64))
barrierpath2Path.closePath()
barrierpath2Path.moveToPoint(CGPointMake(46.8, 26))
barrierpath2Path.addLineToPoint(CGPointMake(46.8, 26))
barrierpath2Path.addCurveToPoint(CGPointMake(39, 18.2), controlPoint1: CGPointMake(46.8, 21.69), controlPoint2: CGPointMake(43.31, 18.2))
barrierpath2Path.addLineToPoint(CGPointMake(39, 18.2))
barrierpath2Path.addCurveToPoint(CGPointMake(31.2, 26), controlPoint1: CGPointMake(34.69, 18.2), controlPoint2: CGPointMake(31.2, 21.69))
barrierpath2Path.addLineToPoint(CGPointMake(31.2, 26))
barrierpath2Path.addCurveToPoint(CGPointMake(39, 33.8), controlPoint1: CGPointMake(31.2, 30.31), controlPoint2: CGPointMake(34.69, 33.8))
barrierpath2Path.addLineToPoint(CGPointMake(39, 33.8))
barrierpath2Path.addCurveToPoint(CGPointMake(46.8, 26), controlPoint1: CGPointMake(43.31, 33.8), controlPoint2: CGPointMake(46.8, 30.31))
barrierpath2Path.closePath()
barrierpath2Path.moveToPoint(CGPointMake(27.3, 14.74))
barrierpath2Path.addLineToPoint(CGPointMake(27.3, 14.74))
barrierpath2Path.addCurveToPoint(CGPointMake(19.5, 6.94), controlPoint1: CGPointMake(27.3, 10.43), controlPoint2: CGPointMake(23.81, 6.94))
barrierpath2Path.addLineToPoint(CGPointMake(19.5, 6.94))
barrierpath2Path.addCurveToPoint(CGPointMake(11.7, 14.74), controlPoint1: CGPointMake(15.19, 6.94), controlPoint2: CGPointMake(11.7, 10.43))
barrierpath2Path.addLineToPoint(CGPointMake(11.7, 14.74))
barrierpath2Path.addCurveToPoint(CGPointMake(19.5, 22.54), controlPoint1: CGPointMake(11.7, 19.05), controlPoint2: CGPointMake(15.19, 22.54))
barrierpath2Path.addLineToPoint(CGPointMake(19.5, 22.54))
barrierpath2Path.addCurveToPoint(CGPointMake(27.3, 14.74), controlPoint1: CGPointMake(23.81, 22.54), controlPoint2: CGPointMake(27.3, 19.05))
barrierpath2Path.closePath()
barrierpath2Path.moveToPoint(CGPointMake(27.3, 37.26))
barrierpath2Path.addLineToPoint(CGPointMake(27.3, 37.26))
barrierpath2Path.addCurveToPoint(CGPointMake(19.5, 29.46), controlPoint1: CGPointMake(27.3, 32.95), controlPoint2: CGPointMake(23.81, 29.46))
barrierpath2Path.addLineToPoint(CGPointMake(19.5, 29.46))
barrierpath2Path.addCurveToPoint(CGPointMake(11.7, 37.26), controlPoint1: CGPointMake(15.19, 29.46), controlPoint2: CGPointMake(11.7, 32.95))
barrierpath2Path.addLineToPoint(CGPointMake(11.7, 37.26))
barrierpath2Path.addCurveToPoint(CGPointMake(19.5, 45.06), controlPoint1: CGPointMake(11.7, 41.57), controlPoint2: CGPointMake(15.19, 45.06))
barrierpath2Path.addLineToPoint(CGPointMake(19.5, 45.06))
barrierpath2Path.addCurveToPoint(CGPointMake(27.3, 37.26), controlPoint1: CGPointMake(23.81, 45.06), controlPoint2: CGPointMake(27.3, 41.57))
barrierpath2Path.closePath()
barrierpath2Path.miterLimit = 4;



monster.physicsBody = SKPhysicsBody(polygonFromPath: barrierpath2Path.CGPath)

¿Pero el simulador muestra solo un agujero (y el png detrás)? ¿Qué pasa aquí?

Respuestas

Lo más probable es que quieras hacer los agujeros infantilesnodos con sus propios cuerpos de física. Esto permitirá que todo tenga sus propios cuerpos de física respectivos y se mueva de acuerdo sin problemas.

Para más detalles sobre esta respuesta, puedetambién podrá usar el inicializador de conveniencia SKPhysicsBody para crear un cuerpo físico a partir de los valores alfa en una textura. Esto generará un impacto en el rendimiento, pero debe hacer lo que quieras.

l.physicsBody = SKPhysicsBody(texture: l.texture, size: l.size)