Refactor player animation and collision based entrances

Entities/Characters/Player/Scripts/state_machine.gd

@@ -1,7 +1,7 @@
 extends Node
 class_name PlayerStateMachine
 
-signal StateChanged
+signal StateChanged(to_state: States, from_state: States)
 
 enum States {
 	UNSET, IDLE, WALKING, USING_ITEM_A, DRAWING_BOW, FIRING_ARROW,
@@ -52,6 +52,9 @@ func _process(delta: float) -> void:
 
 
 func _swap_state() -> void:
+	var from_state := current_state.GetStateEnum()
+	var to_state := queued_state
+	
 	if current_state:
 		current_state.Exit()
 		
@@ -60,4 +63,4 @@ func _swap_state() -> void:
 	queued_state = PlayerStateMachine.States.UNSET
 	queued_parameters = {}
 	
-	StateChanged.emit()
+	StateChanged.emit(to_state, from_state)