obsidian/MyObsidianVault/Knowledgebase/Godot/2D/Tutorial M4 - to space and beyond/04. Steering vector.md

extends Sprite2D
var direction := Vector2(0,0)
var max_speed := 300.0
var velocity = Vector2(0, 0)
var boost_speed := 1500.0
var normal_speed := 300.0
var desired_velocity := Vector2()
var steering_factor := 10

func _process(delta: float) -> void:
	var direction := Vector2(0, 0)
	direction.x = Input.get_axis("move_left", "move_right")
	direction.y = Input.get_axis("move_up", "move_down")

	if direction.length() > 1.0:
		direction = direction.normalized()

	if Input.is_action_just_pressed("boost"):
		max_speed = boost_speed
		get_node("Timer").start()

	desired_velocity = max_speed * direction
	var steering = desired_velocity - velocity
	
	velocity += steering * steering_factor * delta
	position += velocity * delta
	
	if direction.length() > 0.0:
		rotation = velocity.angle() 


func _on_timer_timeout() -> void:
	max_speed = normal_speed