godot-demo-projects/2d/pong/logic/ball.gd

extends Area2D

const DEFAULT_SPEED = 100.0

var _speed := DEFAULT_SPEED
var direction := Vector2.LEFT

@onready var _initial_pos := position

func _process(delta: float) -> void:
	_speed += delta * 2
	position += _speed * delta * direction


func reset() -> void:
	direction = Vector2.LEFT
	position = _initial_pos
	_speed = DEFAULT_SPEED