How to make a character collision?

Question

macOS

If there are professionals in the development of games on Swift, namely on the SpriteKit framework, then
please tell me if it is possible to make it so that the character could not enter the map layer, in this case the ship should crash into the sand layer

Answer 1

In short, you need to enable physics for sand and ship, set its properties (by default, in my opinion, it will consider physics by analogy with ala mario games, i.e. your ship will always fall down, so you need to disable this ) and set the properties so that the sand and the ship can collide with each other.
Here is a tutorial that seems to fit https://www.raywenderlich.com/123393/how-to-create...

Answer 2

Issue resolved. You can iterate over each cell and impose an empty node on it, and, accordingly, impose physics on each node according to the texture of the cell itself.

class GameScene: SKScene {
    var ground : SKTileMapNode!

    override func didMove(to view: SKView) {
        self.ground = self.childNode(withName: "//ground") as! SKTileMapNode

        let tileSize = self.ground.tileSize

        for col in 0..<self.ground.numberOfColumns {
            for row in 0..<self.ground.numberOfRows {
                let definition = self.ground.tileDefinition(atColumn: col, row: row)

                guard let texture = definition?.textures.first else {
                    continue
                }

                let x = CGFloat(col) * tileSize.width + tileSize.width / 2.0
                let y = CGFloat(row) * tileSize.height + tileSize.height / 2.0

                let tileNode = SKNode()
                tileNode.position = CGPoint(x: x, y: y)
                tileNode.physicsBody = SKPhysicsBody(texture: texture, size: texture.size())
                tileNode.physicsBody?.affectedByGravity = false
                tileNode.physicsBody?.isDynamic = false

                self.addChild(tileNode)
            }
        }
    }
}

In this example, the scaleMode of the scene is .resizeFill (since we are writing for macOS)
The scene itself and the map layer (self.ground) have anchorPoint = CGPoint(x: 0, y: 0)
PS While this is a test option, because it is not yet known what it will be with large maps, well, I think it is necessary to add that physics would fall exclusively on the extreme cells.