//Draw the orbit overlay
internal static void drawOrbit(Rect maprect, SCANmap map, Vessel vessel, CelestialBody body)
{
if (vessel == null) return;
if (vessel.mainBody != body) return;
int eqh = 16;
if (vessel.LandedOrSplashed)
return;
bool lite = maprect.width < 400;
Orbit o = vessel.orbit;
double startUT = Planetarium.GetUniversalTime();
double UT = startUT;
int steps = 80; // increase for neater lines, decrease for better speed indication
bool ath = false;
if (vessel.mainBody.atmosphere)
{
if (vessel.mainBody.atmosphereDepth >= vessel.altitude)
{
ath = true;
}
}
Rect r = new Rect(0, 0, 70f, 50f);
Color col;
// project the last and the current orbital period onto the map
for (int i = -steps; i < steps; ++i)
{
if (i < 0)
UT = startUT - (steps + i) * (o.period / steps);
else
UT = startUT + i * o.period * 1f / steps;
if (double.IsNaN(UT))
continue;
if (UT < o.StartUT && o.StartUT != startUT)
continue;
if (UT > o.EndUT)
continue;
if (double.IsNaN(o.getObtAtUT(UT)))
continue;
Vector3d pos = o.getPositionAtUT(UT);
double rotation = 0;
if (vessel.mainBody.rotates)
{
rotation = (360 * ((UT - startUT) / vessel.mainBody.rotationPeriod)) % 360;
}
double alt = (vessel.mainBody.GetAltitude(pos));
if (alt < 0)
{
if (i < 0)
{
i = 0;
continue;
}
break;
}
double lo = (vessel.mainBody.GetLongitude(pos) - rotation);
double la = (vessel.mainBody.GetLatitude(pos));
double lon = (map.projectLongitude(lo, la) + 180) % 360;
double lat = (map.projectLatitude(lo, la) + 90) % 180;
lat = map.scaleLatitude(lat);
lon = map.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
continue;
lon = lon * maprect.width / 360f;
lat = maprect.height - lat * maprect.height / 180f;
r.x = maprect.x + (float)lon;
r.y = maprect.y + (float)lat;
col = palette.cb_skyBlue;
if (i < 0)
{
col = palette.cb_orange;
}
else
{
if (vessel.mainBody.atmosphere)
{
if (vessel.mainBody.atmosphereDepth >= alt)
{
if (!ath)
{
ath = true;
// do something when it flips?
}
col = palette.cb_reddishPurple;
}
}
}
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Planet, col, 8, false);
}
// show apoapsis and periapsis
if (o.ApA > 0 && mapPosAtT(maprect, map, ref r, vessel, o, o.timeToAp, startUT))
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Ap, palette.cb_skyBlue, 32, true);
r.x += 24;
r.y -= 12;
if (!lite)
drawLabel(r, o.ApA.ToString("N0"), true, true, true);
}
if (o.PeA > 0 && mapPosAtT(maprect, map, ref r, vessel, o, o.timeToPe, startUT))
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Pe, palette.cb_skyBlue, 32, true);
r.x += 24;
r.y -= 12;
if (!lite)
drawLabel(r, o.PeA.ToString("N0"), true, true, true);
}
if (lite)
return;
// show first maneuver node
if (vessel.patchedConicSolver != null)
{
if (vessel.patchedConicSolver.maneuverNodes.Count > 0)
{
ManeuverNode n = vessel.patchedConicSolver.maneuverNodes[0];
if (n.patch == vessel.orbit && n.nextPatch != null && n.nextPatch.activePatch && n.UT > startUT - o.period && mapPosAtT(maprect, map, ref r, vessel, o, n.UT - startUT, startUT))
{
col = palette.cb_reddishPurple;
if (SCANcontroller.controller.colours != 1)
col = palette.xkcd_PurplyPink;
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.ManeuverNode, col, 32, true);
Orbit nuo = n.nextPatch;
for (int i = 0; i < steps; ++i)
{
double T = n.UT - startUT + i * nuo.period / steps;
if (T + startUT > nuo.EndUT)
break;
if (mapPosAtT(maprect, map, ref r, vessel, nuo, T, startUT))
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Planet, col, 8, false);
}
}
if (nuo.patchEndTransition == Orbit.PatchTransitionType.ESCAPE)
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Exit, col, 32, true);
}
else if (nuo.patchEndTransition == Orbit.PatchTransitionType.ENCOUNTER)
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Encounter, col, 32, true);
}
if (nuo.timeToAp > 0 && n.UT + nuo.timeToAp < nuo.EndUT && mapPosAtT(maprect, map, ref r, vessel, nuo, n.UT - startUT + nuo.timeToAp, startUT))
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Ap, col, 32, true);
}
if (nuo.timeToPe > 0 && n.UT + nuo.timeToPe < nuo.EndUT && mapPosAtT(maprect, map, ref r, vessel, nuo, n.UT - startUT + nuo.timeToPe, startUT))
{
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.OrbitIcon.Pe, col, 32, true);
}
}
}
}
if (o.PeA < 0)
return;
if (map.Projection == MapProjection.Polar)
return;
if (SCANBigMap.eq_frame <= 0)
{
// predict equatorial crossings for the next 100 loops
double TAAN = 360f - o.argumentOfPeriapsis; // true anomaly at ascending node
double TADN = (TAAN + 180) % 360; // true anomaly at descending node
double MAAN = meanForTrue(TAAN, o.eccentricity);
double MADN = meanForTrue(TADN, o.eccentricity);
double tAN = (((MAAN - o.meanAnomaly * Mathf.Rad2Deg + 360) % 360) / 360f * o.period + startUT);
double tDN = (((MADN - o.meanAnomaly * Mathf.Rad2Deg + 360) % 360) / 360f * o.period + startUT);
if (SCANBigMap.eq_an_map == null || SCANBigMap.eq_dn_map == null || SCANBigMap.eq_an_map.Length != maprect.width)
{
SCANBigMap.eq_an_map = new int[(int)maprect.width];
SCANBigMap.eq_dn_map = new int[(int)maprect.width];
}
if (SCANBigMap.eq_map == null || SCANBigMap.eq_map.width != SCANBigMap.eq_an_map.Length)
{
SCANBigMap.eq_map = new Texture2D(SCANBigMap.eq_an_map.Length, eqh, TextureFormat.ARGB32, false);
}
for (int i = 0; i < SCANBigMap.eq_an_map.Length; ++i)
{
SCANBigMap.eq_an_map[i] = 0;
SCANBigMap.eq_dn_map[i] = 0;
}
for (int i = 0; i < 100; ++i)
{
double UTAN = tAN + o.period * i;
double UTDN = tDN + o.period * i;
if (double.IsNaN(UTAN) || double.IsNaN(UTDN))
continue;
Vector3d pAN = o.getPositionAtUT(UTAN);
Vector3d pDN = o.getPositionAtUT(UTDN);
double rotAN = 0, rotDN = 0;
if (vessel.mainBody.rotates)
{
rotAN = ((360 * ((UTAN - startUT) / vessel.mainBody.rotationPeriod)) % 360);
rotDN = ((360 * ((UTDN - startUT) / vessel.mainBody.rotationPeriod)) % 360);
}
double loAN = vessel.mainBody.GetLongitude(pAN) - rotAN;
double loDN = vessel.mainBody.GetLongitude(pDN) - rotDN;
int lonAN = (int)(((map.projectLongitude(loAN, 0) + 180) % 360) * SCANBigMap.eq_an_map.Length / 360f);
int lonDN = (int)(((map.projectLongitude(loDN, 0) + 180) % 360) * SCANBigMap.eq_dn_map.Length / 360f);
if (lonAN >= 0 && lonAN < SCANBigMap.eq_an_map.Length)
SCANBigMap.eq_an_map[lonAN] += 1;
if (lonDN >= 0 && lonDN < SCANBigMap.eq_dn_map.Length)
SCANBigMap.eq_dn_map[lonDN] += 1;
}
Color[] pix = SCANBigMap.eq_map.GetPixels(0, 0, SCANBigMap.eq_an_map.Length, eqh);
Color cAN = palette.cb_skyBlue, cDN = palette.cb_orange;
for (int y = 0; y < eqh; ++y)
{
Color lc = palette.clear;
for (int x = 0; x < SCANBigMap.eq_an_map.Length; ++x)
{
Color c = palette.clear;
float scale = 0;
if (y < eqh / 2)
{
c = cDN;
scale = SCANBigMap.eq_dn_map[x];
}
else
{
c = cAN;
scale = SCANBigMap.eq_an_map[x];
}
if (scale >= 1)
{
if (y == 0 || y == eqh - 1)
{
c = palette.black;
}
else
{
if (lc == palette.clear)
pix[y * SCANBigMap.eq_an_map.Length + x - 1] = palette.black;
scale = Mathf.Clamp(scale - 1, 0, 10) / 10f;
c = palette.lerp(c, palette.white, scale);
}
}
else
{
c = palette.clear;
if (lc != palette.clear && lc != palette.black)
c = palette.black;
}
pix[y * SCANBigMap.eq_an_map.Length + x] = c;
lc = c;
}
}
SCANBigMap.eq_map.SetPixels(0, 0, SCANBigMap.eq_an_map.Length, eqh, pix);
SCANBigMap.eq_map.Apply();
SCANBigMap.eq_frame = 4;
}
else
{
SCANBigMap.eq_frame -= 1;
}
if (SCANBigMap.eq_map != null)
{
r.x = maprect.x;
r.y = maprect.y + maprect.height / 2 + -SCANBigMap.eq_map.height / 2;
r.width = SCANBigMap.eq_map.width;
r.height = SCANBigMap.eq_map.height;
GUI.DrawTexture(r, SCANBigMap.eq_map);
}
}
private static void drawWaypointLabel(Rect maprect, SCANmap map, SCANwaypoint p, SCANdata data)
{
double lon = SCANUtil.fixLon(p.Longitude);
double lat = SCANUtil.fixLat(p.Latitude);
if (map != null)
{
lat = SCANUtil.fixLat(map.projectLatitude(p.Longitude, p.Latitude));
lon = SCANUtil.fixLon(map.projectLongitude(p.Longitude, p.Latitude));
lat = map.scaleLatitude(lat);
lon = map.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
return;
}
lon = lon * maprect.width / 360f;
lat = maprect.height - lat * maprect.height / 180f;
Rect r = new Rect(maprect.x + (float)lon, maprect.y + (float)lat, 24, 24);
r.x -= 12;
if (!p.LandingTarget)
{
r.y -= 24;
drawMapIcon(r, SCANskins.SCAN_WaypointIcon, true);
}
else
{
r.x += 1;
r.y -= 13;
drawMapIcon(r, SCANcontroller.controller.mechJebTargetSelection ? SCANskins.SCAN_MechJebIcon : SCANskins.SCAN_TargetIcon, true, SCANcontroller.controller.mechJebTargetSelection ? palette.red : palette.xkcd_PukeGreen, true);
}
}
//Method to actually draw vessel labels on the map
internal static void drawVesselLabel(Rect maprect, SCANmap map, int num, Vessel vessel)
{
bool flash = false;
double lon = SCANUtil.fixLon(vessel.longitude);
double lat = SCANUtil.fixLat(vessel.latitude);
if (map != null)
{
lat = SCANUtil.fixLat(map.projectLatitude(vessel.longitude, vessel.latitude));
lon = SCANUtil.fixLon(map.projectLongitude(vessel.longitude, vessel.latitude));
lat = map.scaleLatitude(lat);
lon = map.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
return;
}
lon = lon * maprect.width / 360f;
lat = maprect.height - lat * maprect.height / 180f;
string txt = num.ToString();
if (num == 0)
txt = vessel.vesselName;
else if (num < 0)
txt = "";
Rect r = new Rect(maprect.x + (float)lon, maprect.y + (float)lat, 250f, 25f);
Color col = palette.white;
if (SCANcontroller.controller.colours == 1 && vessel != FlightGlobals.ActiveVessel)
col = palette.cb_skyBlue;
if (vessel == FlightGlobals.ActiveVessel && (int)(Time.realtimeSinceStartup % 2) == 0)
{
flash = true;
col = palette.cb_yellow;
}
int sz = 16;
if (vessel.vesselType == VesselType.Flag)
sz = 24;
SCANicon.drawOrbitIcon((int)r.x, (int)r.y, SCANicon.orbitIconForVesselType(vessel.vesselType), col, sz, true);
if (maprect.width < 360)
return;
r.x += 12;
drawLabel(r, txt, flash, true, true);
}
//Method to draw anomaly labels on the map
private static void drawAnomalyLabel(Rect maprect, SCANmap map, SCANanomaly anomaly)
{
if (!anomaly.Known)
return;
double lon = SCANUtil.fixLon(anomaly.Longitude);
double lat = SCANUtil.fixLat(anomaly.Latitude);
if (map != null)
{
lat = SCANUtil.fixLat(map.projectLatitude(anomaly.Longitude, anomaly.Latitude));
lon = SCANUtil.fixLon(map.projectLongitude(anomaly.Longitude, anomaly.Latitude));
lat = map.scaleLatitude(lat);
lon = map.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
return;
}
lon = lon * maprect.width / 360f;
lat = maprect.height - lat * maprect.height / 180f;
string txt = SCANcontroller.controller.anomalyMarker + " " + anomaly.Name;
if (!anomaly.Detail)
txt = SCANcontroller.controller.anomalyMarker + " Anomaly";
Rect r = new Rect(maprect.x + (float)lon, maprect.y + (float)lat, 250f, 25f);
drawLabel(r, txt, true, true, true);
}
/* UI: This isn't really a UI function, so it doesn't belong here.
* This is more of a time-projection mathematical function. */
/* FIXME: possible relocation */
private static bool mapPosAtT(Rect maprect, SCANmap map, ref Rect r, Vessel vessel, Orbit o, double dT, double startUT)
{
double UT = startUT + dT;
if (double.IsNaN(UT))
return false;
try
{
if (double.IsNaN(o.getObtAtUT(UT)))
return false;
Vector3d pos = o.getPositionAtUT(UT);
double rotation = 0;
if (vessel.mainBody.rotates)
{
rotation = (360 * (dT / vessel.mainBody.rotationPeriod)) % 360;
}
double lo = (vessel.mainBody.GetLongitude(pos) - rotation);
double la = (vessel.mainBody.GetLatitude(pos));
double lon = (map.projectLongitude(lo, la) + 180) % 360;
double lat = (map.projectLatitude(lo, la) + 90) % 180;
lat = map.scaleLatitude(lat);
lon = map.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
return false;
lon = lon * maprect.width / 360f;
lat = maprect.height - lat * maprect.height / 180f;
r.x = maprect.x + (float)lon;
r.y = maprect.y + (float)lat;
return true;
}
catch (Exception)
{
return false;
}
}