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Ramon Alvarez Mora
Asked: 2020-09-27 08:12:19 +0800 CST 2020-09-27 08:12:19 +0800 CST

Question about bounding boxes SpriteKit

  • 772

How can you create a bounding box that collides with a circular shape, which is triangular?

swift3

1 Answers

  1. Best Answer

    You need to use one of the polygonal type

    let polygonalSpaceShip = SKSpriteNode(texture: spaceShipTexture)
let path = CGMutablePath()
path.addLines(between: [CGPoint(x: 0, y: 0), CGPoint(x: 50, y: 50), CGPoint(x: 0, y: 50),
                        CGPoint(x: 0, y: 0)]) //son 4 porqué el ultimo vuelve al origen

    SKPhysicsBody Example

    path example

    Although depending on your sprite you can try to use the alpha channel

    let texturedSpaceShip = SKSpriteNode(texture: spaceShipTexture)
texturedSpaceShip.physicsBody = SKPhysicsBody(texture: spaceShipTexture,
                                              size: CGSize(width: circularSpaceShip.size.width,
                                                           height: circularSpaceShip.size.height))
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