extends Node3D
class_name PlayerManager

@export var fox: Player

func _ready() -> void:
	PlayerInput.player_join.connect(player_join)

func assign_unassigned(data: PlayerInputData) -> bool:
	for child in get_children():
		if child.input == null:
			child.input = data
			return true
	return false

func is_assigned(data: PlayerInputData) -> bool:
	for child in get_children():
		if child.input == data:
			return true
	return false

func switch_player(data: PlayerInputData):
	if fox.input == null:
		data.drop.emit()
		fox.input = data
		return
	if not is_assigned(data):
		assign_unassigned(data)
	else:
		var children = get_children()
		var i := 0
		while i < children.size():
			if children[i].input == data:
				break
			i += 1
		if i == children.size():
			return
		var j := 0
		while j < children.size() - 1:
			var ii := (i + 1 + j) % children.size()
			if children[ii].input == null:
				children[i].input = null
				children[ii].input = data
				return
			j += 1
			

func player_join(data: PlayerInputData):
	if fox.input == null:
		fox.input = data
		return
	assign_unassigned(data)

func _process(_delta: float) -> void:
	var count := get_children().size()
	if count == 0:
		get_tree().change_scene_to_file("res://fox_win_text.tscn")
	elif count >= 20:
		get_tree().change_scene_to_file("res://vole_win_text.tscn")