class_name Sleigh extends Node3D

static var instance: Sleigh

@export var baseSpeed: float = 100
@export var maxSpeed: float = 500
@export var drag: float = 10
var speed: float

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	speed = baseSpeed

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	var distance: float = (speed * delta * Vector3.FORWARD).z
	position.z += distance
	if (is_instance_valid(City.instance)): City.instance.distance -= distance
	speed -= drag * delta
	speed = clampf(speed, baseSpeed, maxSpeed)

func _on_rudolph_entered(area: Area3D) -> void:
	if (area is SpeedRing):
		speed *= area.strength