adds basic arm control flow system

scripts/arm.gd

@@ -1,6 +1,6 @@
 extends Node3D
 
-@export var key: Key
+@export var action: StringName
 
 
 # Called when the node enters the scene tree for the first time.
@@ -11,3 +11,12 @@ func _ready() -> void:
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:
 	pass
+
+
+func _arm_enabled(arm):
+	print_debug("enabled!")
+	pass
+
+func _arm_disabled(arm):
+	print_debug("disabled!")
+	pass