Rework player state system to use an event subscription system to avoid directly calling methods on individual state and having to worry about validity

Entities/Characters/Player/Scripts/States/idle_state.gd

@@ -1,52 +1,14 @@
 extends BaseState
-class_name PlayerIdleState
 
-signal PlayerBecameIdle
+# idle_state.gd
 
-@export var player: PlayerCharacter
+func _ready() -> void:
+	SubscribeToEvent("MovementQueued", OnMovementQueued)
 
-var _movement_component: MovementComponent
-var _sit_queued := false
-var _sit_queue_pos: Vector2
-var _sit_queue_dir: Enums.Directions
+
+func OnMovementQueued(dv: Vector2) -> void:
+	state_machine.QueueStateChange(PlayerStateMachine.States.WALKING, {"dv": dv})
 
 
 func GetStateEnum() -> PlayerStateMachine.States:
 	return PlayerStateMachine.States.IDLE
-
-
-func Enter(_extra_parameters: Dictionary) -> void:
-	_movement_component = ComponentUtils.GetMovementComponent(player)
-	if not _movement_component:
-		print_rich("[color=yellow]Warning: Player does not have a movement component...[/color]")
-	
-	PlayerBecameIdle.emit()
-
-
-func Update(_delta: float) -> void:
-	var item_a := Input.is_action_just_pressed("use_item_a")
-	
-	if item_a:
-		state_machine.QueueStateChange(PlayerStateMachine.States.USING_ITEM_A, {})
-		return
-	
-	if _sit_queued:
-		state_machine.QueueStateChange(PlayerStateMachine.States.SITTING, {"pos": _sit_queue_pos, "dir": _sit_queue_dir})
-		_sit_queued = false
-		return
-	
-	if _movement_component and _movement_component.movement_vector != Vector2.ZERO:
-		state_machine.QueueStateChange(PlayerStateMachine.States.WALKING)
-
-
-func OnSitOnFurnitureTriggered(sitting_position: Vector2, sitting_direction: Enums.Directions) -> void:
-	if state_machine.GetCurrentStateEnum() != GetStateEnum():
-		return
-	
-	_sit_queued = true
-	_sit_queue_pos = sitting_position
-	_sit_queue_dir = sitting_direction
-
-
-func OnCutsceneStarted() -> void:
-	state_machine.QueueStateChange(PlayerStateMachine.States.CUTSCENE)