Questions: player, enemies; collision detection?

[ghost]

Thanks for maintaining this awesome project!

As a new game dev, I'm looking for some information:

• player / enemies: do I add them as children on the SKScene, on the world node, on the tilemap, or on a layer?
• collision detection: as collision objects are not supported in SKTiled, should I add SpriteKit collision masks to all tiles and didBegin(_ contact:), or for example check for the presence of tiles near the player position?

Thanks!