class_name VehicleCommand
extends RefCounted

var sequence: int
var longitudinal: float
var steering: float
var vertical: float
var high_thrust_active: bool


func _init(
	p_sequence: int,
	p_longitudinal: float,
	p_steering: float,
	p_vertical: float,
	p_high_thrust_active: bool
) -> void:
	sequence = p_sequence
	longitudinal = p_longitudinal
	steering = p_steering
	vertical = p_vertical
	high_thrust_active = p_high_thrust_active


func validation_error() -> String:
	if sequence < 0:
		return "vehicle command sequence is negative"
	for value: float in [longitudinal, steering, vertical]:
		if not is_finite(value) or value < -1.0 or value > 1.0:
			return "vehicle command axes must be finite and normalized"
	return ""


static func neutral(p_sequence: int) -> VehicleCommand:
	return new(p_sequence, 0.0, 0.0, 0.0, false)