diff --git a/src/empty_space_thing.gd b/src/empty_space_thing.gd
index e4d96ed..6b6fab2 100644
--- a/src/empty_space_thing.gd
+++ b/src/empty_space_thing.gd
@@ -1,15 +1,18 @@
 extends Control
 class_name SpaceNode
 
+# adapted from pc_tile code (project-elysium-main)
 var initial_pos: Vector2
 var offset: Vector2
 var draggable: bool = false
 var velocity: float = 0
 
+# variables for velocity calculation
 var mouse_first_location: Vector2
 var mouse_release_location: Vector2
 var time_since_first_location: float = -1
 
+# Export variables, for ease of setting without going into the code
 @export var velocity_coeffecient: int = 500
 @export var max_x: int = 1000
 @export var min_x: int = 0
@@ -47,6 +50,7 @@ func _process(delta: float) -> void:
 				draggable = false
 				
 	elif not draggable:
+		# when the drag is complete, create a tween to ease out towards zero
 		var tween = get_tree().create_tween()
 		tween.tween_property(self, "velocity", 0, ease_out_time).set_ease(Tween.EASE_OUT)
 		mouse_first_location = Vector2(0,0)