extends Area2D

# member variables here, example:
# var a=2
# var b="textvar"

const SPEED = 200

var screen_size

var prev_shooting=false

func _process(delta):

	var motion = Vector2()
	if Input.is_action_pressed("move_up"):
		motion+=Vector2(0,-1)
	if Input.is_action_pressed("move_down"):
		motion+=Vector2(0,1)
	if Input.is_action_pressed("move_left"):
		motion+=Vector2(-1,0)
	if Input.is_action_pressed("move_right"):
		motion+=Vector2(1,0)
	var shooting = Input.is_action_pressed("shoot")
		
	var pos = get_pos()
	
	pos+=motion*delta*SPEED
	if (pos.x<0):
		pos.x=0
	if (pos.x>screen_size.x):
		pos.x=screen_size.x
	if (pos.y<0):
		pos.y=0
	if (pos.y>screen_size.y):
		pos.y=screen_size.y

	set_pos(pos)
	
	if (shooting and not prev_shooting):
		# just pressed
		var shot = preload("res://shot.scn").instance()
		#use the position3d as reference
		shot.set_pos( get_node("shootfrom").get_global_pos() )
		#put it two parents above, so it is not moved by us
		get_node("../..").add_child(shot)
		#play sound
		get_node("sfx").play("shoot")
		
	
	prev_shooting = shooting

	#update points counter
	get_node("../hud/score_points").set_text( str(get_node("/root/game_state").points) )

func _ready():
	# Initialization here
	screen_size = get_viewport().get_rect().size
	set_process(true)
	pass

var killed=false

func _hit_something():
	if (killed):
		return
	killed=true
	get_node("anim").play("explode")
	get_node("sfx").play("sound_explode")
	get_node("../hud/game_over").show()
	get_node("/root/game_state").game_over()
	get_parent().stop()
	set_process(false)


func _on_ship_body_enter( body ):
	_hit_something()


func _on_ship_area_enter( area ):
	if (area.has_method("is_enemy") and area.is_enemy()):
		_hit_something()


func _on_back_to_menu_pressed():
	get_tree().change_scene("res://main_menu.scn")
	pass # replace with function body