extends Area2D
signal hit
@export var speed = 600
var spriteRotateAngle = 0
var screen_size
@export var bullet : PackedScene
@export var firespeed = 10
var timeBetweenBullets = 1.00000 / firespeed
var deltaSum = 0
# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	screen_size = get_viewport_rect().size


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _physics_process(delta: float) -> void:
	var velocity = Vector2.ZERO
	var currentSpeed = speed
	if Input.is_action_pressed("move_up"):
		velocity.y -= 1
	if Input.is_action_pressed("move_down"):
		velocity.y += 1
		
	if Input.is_action_pressed("move_right"):
		velocity.x += 1
		if spriteRotateAngle < 20:
			spriteRotateAngle += 1
	elif Input.is_action_pressed("move_left"):
		velocity.x -= 1
		if spriteRotateAngle > -20:
			spriteRotateAngle -= 1
	elif spriteRotateAngle < 0:
		spriteRotateAngle += 1
	elif spriteRotateAngle > 0:
		spriteRotateAngle -= 1
		
	if Input.is_action_pressed("focus"):
		currentSpeed = speed / 2
		
	if velocity.length() > 0:
		velocity = velocity.normalized() * currentSpeed
		
	position += velocity * delta
	position = position.clamp(Vector2.ZERO, screen_size)
	rotation_degrees = spriteRotateAngle
	
	if Input.is_action_pressed("shoot"):
		deltaSum += delta
		if deltaSum > timeBetweenBullets :
			var remainder = fmod(deltaSum, timeBetweenBullets)
			var numBullets = round ((deltaSum - remainder) / timeBetweenBullets)
			deltaSum = remainder
			for n in numBullets :
				shoot()


func shoot():
	var b = bullet.instantiate()
	owner.add_child(b)
	b.transform = $FrontBulletSource.global_transform