extends Node

var game_stats_config = preload("res://resources/game_stats_config.tres")
var morale_down = preload("res://assets/morale_down.wav")

signal life_changed
signal morale_changed
var _life : int 
var _morale : int
var _current_wave : int

func reset():
	_life = game_stats_config.starting_life
	_morale = game_stats_config.starting_morale
	_current_wave = 1

func get_life() -> int:
	return _life

func add_life(amount: int):
	_life += amount
	emit_signal("life_changed")

func subtract_life(amount: int):
	_life -= amount
	emit_signal("life_changed")

func get_morale() -> int:
	return _morale

func add_morale(amount: int):
	_morale += amount
	emit_signal("morale_changed")

func subtract_morale(amount: int):
	_morale -= amount
	emit_signal("morale_changed")
	if (_morale < 1):
		get_tree().change_scene_to_file("res://scenes/game_over.tscn")
	else:
		var ap = get_tree().current_scene.get_node("Blips")
		ap.stream = morale_down
		ap.play()
	
func get_current_wave() -> int:
	return _current_wave

func increment_wave():
	_current_wave += 1