private static void drawVesselLabel(Rect maprect, SCANmap map, int num, Vessel vessel)
{
double lon = (vessel.longitude + 360 + 180) % 360;
double lat = (vessel.latitude + 180 + 90) % 180;
if(map != null) {
lat = (map.projectLatitude(vessel.longitude, vessel.latitude) + 90) % 180;
lon = (map.projectLongitude(vessel.longitude, vessel.latitude) + 180) % 360;
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 = Color.white;
if(SCANcontroller.controller.colours == 1 && vessel != FlightGlobals.ActiveVessel) col = cb_skyBlue;
if(vessel == FlightGlobals.ActiveVessel && (int)(Time.realtimeSinceStartup % 2) == 0) {
col = cb_yellow;
}
int sz = 16;
if(vessel.vesselType == VesselType.Flag) sz = 24;
drawOrbitIcon((int)r.x, (int)r.y, orbitIconForVesselType(vessel.vesselType), col, sz, true);
if(maprect.width < 360) return;
r.x += 12;
drawLabel(r, col, txt, true, true);
}
private static void drawAnomalyLabel(Rect maprect, SCANmap map, SCANdata.SCANanomaly anomaly)
{
if(!anomaly.known) return;
double lon = (anomaly.longitude + 360 + 180) % 360;
double lat = (anomaly.latitude + 180 + 90) % 180;
if(map != null) {
lat = (map.projectLatitude(anomaly.longitude, anomaly.latitude) + 90) % 180;
lon = (map.projectLongitude(anomaly.longitude, anomaly.latitude) + 180) % 360;
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, cb_yellow, txt, true, true);
}
private static void drawOrbit(Rect maprect, SCANmap map, Vessel vessel)
{
if(vessel.LandedOrSplashed) return;
bool lite = maprect.width < 400;
Orbit o = vessel.orbit;
startUT = Planetarium.GetUniversalTime();
double UT = startUT;
int steps = 100; // increase for neater lines, decrease for better speed indication
bool ath = false;
if(vessel.mainBody.atmosphere) {
if(vessel.mainBody.maxAtmosphereAltitude >= vessel.altitude) {
ath = true;
}
}
Rect r = new Rect(0, 0, 50f, 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 = cb_skyBlue;
if(i < 0) {
col = cb_orange;
} else {
if(vessel.mainBody.atmosphere) {
if(vessel.mainBody.maxAtmosphereAltitude >= alt) {
if(!ath) {
ath = true;
// do something when it flips?
}
col = cb_reddishPurple;
}
}
}
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Planet, col, 8, false);
}
// show apoapsis and periapsis
if(o.ApA > 0 && mapPosAtT(maprect, map, ref r, vessel, o, o.timeToAp)) {
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Ap, cb_skyBlue, 32, true);
r.x += 24;
r.y -= 12;
if(!lite) drawLabel(r, cb_skyBlue, o.ApA.ToString("N1"), true, true);
}
if(o.PeA > 0 && mapPosAtT(maprect, map, ref r, vessel, o, o.timeToPe)) {
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Pe, cb_skyBlue, 32, true);
r.x += 24;
r.y -= 12;
if(!lite) drawLabel(r, cb_skyBlue, o.PeA.ToString("N1"), true, true);
}
if(lite) return;
// show first maneuver node
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)) {
col = cb_reddishPurple;
if(SCANcontroller.controller.colours != 1) col = XKCDColors.PurplyPink;
drawOrbitIcon((int)r.x, (int)r.y, 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)) {
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Planet, col, 8, false);
}
}
if(nuo.patchEndTransition == Orbit.PatchTransitionType.ESCAPE) {
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Exit, col, 32, true);
} else if(nuo.patchEndTransition == Orbit.PatchTransitionType.ENCOUNTER) {
drawOrbitIcon((int)r.x, (int)r.y, 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)) {
drawOrbitIcon((int)r.x, (int)r.y, 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)) {
drawOrbitIcon((int)r.x, (int)r.y, OrbitIcon.Pe, col, 32, true);
}
}
}
if(o.PeA < 0) return;
if(overlay_static == null) return;
if(map.projection == SCANmap.MapProjection.Polar) return;
if(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);
int eqh = 16;
if(eq_an_map == null || eq_dn_map == null || eq_an_map.Length != overlay_static.width) {
eq_an_map = new int[overlay_static.width];
eq_dn_map = new int[overlay_static.width];
}
if(eq_map == null || eq_map.width != eq_an_map.Length) {
eq_map = new Texture2D(eq_an_map.Length, eqh, TextureFormat.ARGB32, false);
}
for(int i=0; i<eq_an_map.Length; ++i) {
eq_an_map[i] = 0;
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) * eq_an_map.Length / 360f);
int lonDN = (int)(((map.projectLongitude(loDN, 0) + 180) % 360) * eq_dn_map.Length / 360f);
if(lonAN >= 0 && lonAN < eq_an_map.Length) eq_an_map[lonAN] += 1;
if(lonDN >= 0 && lonDN < eq_dn_map.Length) eq_dn_map[lonDN] += 1;
}
Color[] pix = eq_map.GetPixels(0, 0, eq_an_map.Length, eqh);
Color cAN = cb_skyBlue, cDN = cb_orange;
for(int y = 0; y < eqh; ++y) {
Color lc = Color.clear;
for(int x = 0; x < eq_an_map.Length; ++x) {
Color c = Color.clear;
float scale = 0;
if(y < eqh / 2) {
c = cDN;
scale = eq_dn_map[x];
} else {
c = cAN;
scale = eq_an_map[x];
}
if(scale >= 1) {
if(y == 0 || y == eqh - 1) {
c = Color.black;
} else {
if(lc == Color.clear) pix[y * eq_an_map.Length + x - 1] = Color.black;
scale = Mathf.Clamp(scale - 1, 0, 10) / 10f;
c = Color.Lerp(c, Color.white, scale);
}
} else {
c = Color.clear;
if(lc != Color.clear && lc != Color.black) c = Color.black;
}
pix[y * eq_an_map.Length + x] = c;
lc = c;
}
}
eq_map.SetPixels(0, 0, eq_an_map.Length, eqh, pix);
eq_map.Apply();
eq_frame = 4;
} else {
eq_frame -= 1;
}
if(eq_map != null) {
r.x = maprect.x;
r.y = maprect.y + maprect.height / 2 + - eq_map.height / 2;
r.width = eq_map.width;
r.height = eq_map.height;
GUI.DrawTexture(r, eq_map);
}
}
private static bool mapPosAtT(Rect maprect, SCANmap map, ref Rect r, Vessel vessel, Orbit o, double dT)
{
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;
}
}