extends PlayerComponent

class_name StateHints

#affiche dans le HUD les hints de l'etat courant du joueur (PlayerState.get_hints). La StateMachine, generique, ne connait pas le HUD :
#ce composant ecoute ses changements d'etat et les hints_changed des etats.
#composant a ajouter sous le PlayerCharacter (le nom du node est libre, voir PlayerComponent).

func register_with_player() -> void:
	player.state_hints = self

func _ready() -> void:
	var machine : StateMachine = player.state_machine
	machine.state_changed.connect(_on_state_changed)
	for child in machine.get_children():
		if child is PlayerState: child.hints_changed.connect(_on_hints_changed.bind(child))

func _exit_tree() -> void:
	Hints.clear_hints(self)

func _on_state_changed(_from : State, _to : State) -> void:
	publish()

func _on_hints_changed(state : PlayerState) -> void:
	if state == player.state_machine.curr_state: publish()

func publish() -> void:
	var state := player.state_machine.curr_state as PlayerState
	if state and !state.keep_previous_hints:
		Hints.show_hints(self, state.get_hints())