godot-moontiler/common.gd

extends Node


func latLonToGlobal(latPos, lonPos, height=1737.4, offset=Vector3()):
	height = height + offset.z
	var lat = float(latPos+offset.x)*PI/180
	var w = cos(lat)
	var y = sin(lat)
	var u = float(lonPos) / 360
	var lon = float(lonPos+offset.y)*PI/180
	var x = sin(lon)
	var z = cos(lon)
	return Vector3(x * height * w, y*height, z * height * w)
			
func globalToLatLon(x, y, z, height=1737.4, offset=Vector3()):
	height = height + offset.z
	var lon = 0
	if z != 0: #and abs(x/z) < 1:
		lon = atan(x/z)*180/PI
	var lat = sign(y)*90
	if abs(y) < height:
		lat = asin(y/height)*180/PI
	#print("x:"+str(x)+" y:"+str(y)+" z:"+str(z)))
	#print("lat:"+str(lat)+" lon:"+str(lon))
	return Vector2(lat, lon)