# Copyright (c) 2023-2025 Cory Petkovsek and Contributors
# Copyright (c) 2021 J. Cuellar
class_name OrbitalElementsExt
# Handles Orbital elements for planetary system
var N: float # Longitude of the ascending node.
var i: float # The Inclination to the ecliptic.
var w: float # Argument of perihelion.
var a: float # Semi-major axis, or mean distance from sun.
var e: float # Eccentricity.
var M: float # Mean anomaly.
func get_orbital_elements(index: int, timeScale: float) -> void:
if index == 0: # Sun
N = 0.0
i = 0.0
w = 282.9404 + 4.70935e-5 * timeScale
a = 0.0
e = 0.016709 - 1.151e-9 * timeScale
M = 356.0470 + 0.9856002585 * timeScale
else: # Moon
N = 125.1228 - 0.0529538083 * timeScale
i = 5.1454
w = 318.0634 + 0.1643573223 * timeScale
a = 60.2666
e = 0.054900
M = 115.3654 + 13.0649929509 * timeScale