How to shoot my bullet upwards

Question

So, I used this code:

extends Area2D

export (int) var speed = 750

onready var kill_timer = $KillBulletTimer

var direction := Vector2.ZERO

func ready() -> void:
killtimer.start()

func physicsprocess(delta: float) -> void:
movelocaly(speed * delta)
if direction != Vector2.ZERO:
var velocity = direction * speed

    global_position += velocity

func set_direction(direction: Vector2):
self.direction = direction

func onKillBulletTimertimeout():
queuefree()

But my bullets go downwards when I shoot. What should I do?

Answer 1

Godot's coordinate system has up as negative y.

Therefore, you should subtract in order for the bullet to go up.