extends Node


var max_health = 100.0
var player_healths = []
var player_count: int

signal player_win(player_id)
signal player_count_updated(new_player_count)
signal player_health_updated(player_id, new_player_health)


func set_player_count(new_player_count: int):
	assert(new_player_count <= 4)
	
	player_count = new_player_count
	player_healths = []
	
	for i in range(0, player_count):
		player_healths.append(0.0)
		set_player_health(i, max_health)
	
	emit_signal("player_count_updated", new_player_count)


func subtract_player_health(player_id, subtractor):
	set_player_health(player_id, player_healths[player_id] - subtractor)


func set_player_health(player_id, new_value):
	assert(player_id < player_count)
	assert(player_id >= 0)
	
	player_healths[player_id] = new_value
	
	if player_healths[player_id] < 0.0:
		emit_signal("player_win", player_id)
	else:
		emit_signal("player_health_updated", player_id, player_healths[player_id])