Player.GD

extends Area2D

signal hit

@export var speed = 400 # How fast the player will move (pixels/sec).
var screen_size # Size of the game window.

func _ready():
    screen_size = get_viewport_rect().size

func _on_body_entered(_body):
    hide() # Player disappears after being hit.
    hit.emit()
    # Must be deferred as we can't change physics properties on a physics callback.
    $CollisionShape2D.set_deferred("disabled", true)


func _process(delta):
    var velocity = Vector2.ZERO # The player's movement vector.
    if Input.is_action_pressed("move_right"):
        velocity.x += 1
    if Input.is_action_pressed("move_left"):
        velocity.x -= 1

    if velocity.length() > 0:
        velocity = velocity.normalized() * speed
        $AnimatedSprite2D.play()
    else:
        $AnimatedSprite2D.stop()

    if velocity.x != 0:
        $AnimatedSprite2D.animation = "walk_right"
        $AnimatedSprite2D.flip_v = false
        # See the note below about boolean assignment.
        $AnimatedSprite2D.flip_h = velocity.x < 0

        position += velocity * delta
        position = position.clamp(Vector2.ZERO, screen_size)