Coin Collector: Coins

Each of the six coins runs coin.gd, so you write it once. A coin does three things you already know:

• It joins the group coins, so Main can count the coins later.
• It listens to its own body_entered.
• It frees itself when the player touches it.

The player is in the group player, set in the scene. Check for it before freeing the coin, so nothing else picks one up:

func _on_body_entered(body):
	if body.is_in_group("player"):
		queue_free()