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SCAN_UI_BigMap.cs
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SCAN_UI_BigMap.cs
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#region license
/*
* [Scientific Committee on Advanced Navigation]
* S.C.A.N. Satellite
*
* SCAN_UI_BigMap - UI control object for SCANsat big map
*
* Copyright (c)2014 David Grandy <david.grandy@gmail.com>;
* Copyright (c)2014 technogeeky <technogeeky@gmail.com>;
* Copyright (c)2014 (Your Name Here) <your email here>; see LICENSE.txt for licensing details.
*/
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;
using SCANsat.SCAN_Toolbar;
using SCANsat.Unity.Interfaces;
using SCANsat.Unity;
using SCANsat.Unity.Unity;
using SCANsat.SCAN_Data;
using SCANsat.SCAN_Map;
using SCANsat.SCAN_UI.UI_Framework;
using Contracts;
using KSP.UI;
using FinePrint;
using FinePrint.Utilities;
using palette = SCANsat.SCAN_UI.UI_Framework.SCANpalette;
namespace SCANsat.SCAN_Unity
{
public class SCAN_UI_BigMap : ISCAN_BigMap
{
private bool _isVisible;
private static SCANmap bigmap;
private static CelestialBody body;
private SCANdata data;
private Vessel vessel;
private bool updateMap;
private StringBuilder infoString;
private System.Random gen;
private bool _inputLock;
private const string controlLock = "SCANsatBig";
private SCANresourceGlobal currentResource;
private List<SCANresourceGlobal> resources;
private List<Vessel> mapFlags = new List<Vessel>();
private SCAN_BigMap uiElement;
private const int orbitSteps = 80;
private List<SimpleLabelInfo> orbitLabels = new List<SimpleLabelInfo>();
private Dictionary<string, MapLabelInfo> orbitMapLabels = new Dictionary<string, MapLabelInfo>();
private const string Aplabel = "Ap";
private const string Pelabel = "Pe";
private const string Escapelabel = "Escape";
private const string Encounterlabel = "Encounter";
private const string Manlabel = "Man";
private const string ManAplabel = "ManAp";
private const string ManPelabel = "ManPe";
private const string ManEscapelabel = "ManEscape";
private const string ManEncounterlabel = "ManEncounter";
private static Texture2D eqMap;
private static bool[] eq_an;
private static bool[] eq_dn;
private static Color32[] eq_pix;
private const int eq_height = 20;
private const int eq_count = 100;
private const int eq_update = 4;
private int eq_timer;
private Color32 c_dn = palette.CB_orange;
private Color32 c_an = palette.CB_skyBlue;
private Texture2D clearMap;
private bool clearMapSet;
private Texture2D gridMap;
private static SCAN_UI_BigMap instance;
public static SCAN_UI_BigMap Instance
{
get { return instance; }
}
public static CelestialBody Body
{
get { return body; }
}
public SCAN_UI_BigMap()
{
instance = this;
resources = SCANcontroller.setLoadedResourceList();
GameEvents.onVesselChange.Add(vesselChange);
GameEvents.onVesselWasModified.Add(vesselChange);
GameEvents.onVesselSOIChanged.Add(soiChange);
gen = new System.Random(Environment.TickCount.GetHashCode());
initializeMap();
if (HighLogic.LoadedSceneIsFlight && SCANcontroller.controller.bigMapVisible)
{
if (WaypointToggle)
SCANcontroller.controller.StartCoroutine(WaitForWaypoints());
else
Open();
}
}
private IEnumerator WaitForWaypoints()
{
while (!ContractSystem.loaded)
yield return null;
Open();
}
private void vesselChange(Vessel V)
{
vessel = FlightGlobals.ActiveVessel;
if (!_isVisible)
return;
RefreshIcons();
}
private void soiChange(GameEvents.HostedFromToAction<Vessel, CelestialBody> action)
{
if (!_isVisible)
return;
RefreshIcons();
updateMap = true;
}
public void Open()
{
uiElement = GameObject.Instantiate(SCAN_UI_Loader.BigMapPrefab).GetComponent<SCAN_BigMap>();
if (uiElement == null)
return;
uiElement.transform.SetParent(UIMasterController.Instance.dialogCanvas.transform, false);
if (OrbitToggle && ShowOrbit)
{
Orbit o = vessel.orbit;
orbitLabels.Clear();
for (int i = 0; i < orbitSteps * 3; i++)
{
orbitLabels.Add(new SimpleLabelInfo(10, SCAN_UI_Loader.PlanetIcon));
}
if (!vessel.LandedOrSplashed)
UpdateOrbitIcons(o);
}
uiElement.setMap(this);
SetGridLines();
SetTitle();
uiElement.UpdateEQMapTexture(clearMap);
clearMapSet = true;
updateMap = true;
_isVisible = true;
if (HighLogic.LoadedSceneIsFlight)
SCANcontroller.controller.bigMapVisible = true;
if (SCAN_Settings_Config.Instance.StockToolbar)
{
if (HighLogic.LoadedSceneIsFlight)
{
if (SCAN_Settings_Config.Instance.ToolbarMenu)
{
if (SCANappLauncher.Instance != null && SCANappLauncher.Instance.UIElement != null)
SCANappLauncher.Instance.UIElement.SetBigMapToggle(false);
}
}
else
{
if (SCANappLauncher.Instance != null && SCANappLauncher.Instance.SCANAppButton != null)
SCANappLauncher.Instance.SCANAppButton.SetTrue(false);
}
}
}
public void Close()
{
_isVisible = false;
if (uiElement == null)
return;
uiElement.FadeOut();
if (SCAN_Settings_Config.Instance.StockToolbar)
{
if (HighLogic.LoadedSceneIsFlight)
{
if (SCAN_Settings_Config.Instance.ToolbarMenu)
{
if (SCANappLauncher.Instance != null && SCANappLauncher.Instance.UIElement != null)
SCANappLauncher.Instance.UIElement.SetBigMapToggle(false);
}
}
else
{
if (SCANappLauncher.Instance != null && SCANappLauncher.Instance.SCANAppButton != null)
SCANappLauncher.Instance.SCANAppButton.SetFalse(false);
}
}
if (HighLogic.LoadedSceneIsFlight)
SCANcontroller.controller.bigMapVisible = false;
}
public void RefreshIcons()
{
if (!_isVisible || uiElement == null)
return;
uiElement.RefreshIcons();
}
private void initializeMap()
{
if (HighLogic.LoadedSceneIsFlight)
vessel = FlightGlobals.ActiveVessel;
if (body == null)
{
for (int i = FlightGlobals.Bodies.Count - 1; i >= 0; i--)
{
CelestialBody b = FlightGlobals.Bodies[i];
if (b.bodyName != SCANcontroller.controller.bigMapBody)
continue;
body = b;
break;
}
if (body == null)
{
if (vessel == null)
body = FlightGlobals.Bodies[1];
else
body = vessel.mainBody;
}
}
data = SCANUtil.getData(body);
if (data == null)
{
data = new SCANdata(body);
SCANcontroller.controller.addToBodyData(body, data);
}
if (bigmap == null)
{
bigmap = new SCANmap(body, true, mapSource.BigMap);
MapProjection p = MapProjection.Rectangular;
mapType t = mapType.Altimetry;
try
{
p = (MapProjection)Enum.Parse(typeof(MapProjection), SCANcontroller.controller.bigMapProjection, true);
t = (mapType)Enum.Parse(typeof(mapType), SCANcontroller.controller.bigMapType, true);
}
catch (Exception e)
{
SCANUtil.SCANlog("Error in parsing map projection and/or type\n{0}", e);
p = MapProjection.Rectangular;
t = mapType.Altimetry;
}
bigmap.Projection = p;
bigmap.MType = t;
bigmap.ResourceActive = SCANcontroller.controller.bigMapResourceOn;
bigmap.ColorMap = SCANcontroller.controller.bigMapColor;
bigmap.Terminator = SCANcontroller.controller.bigMapTerminator;
if (SCAN_Settings_Config.Instance.BigMapWidth % 2 != 0)
SCAN_Settings_Config.Instance.BigMapWidth += 1;
bigmap.setWidth(SCAN_Settings_Config.Instance.BigMapWidth);
}
bigmap.setBody(body);
currentResource = AssignResource(SCANcontroller.controller.bigMapResource);
if (currentResource != null)
bigmap.Resource = currentResource;
if (eqMap == null)
RefreshEQMap();
AddOrbitMapLabels();
clearMap = new Texture2D(1, 1, TextureFormat.ARGB32, false);
clearMap.SetPixel(0, 0, palette.clear);
clearMap.Apply();
}
private void AddOrbitMapLabels()
{
orbitMapLabels.Add(Aplabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.APMarker,
pos = new Vector2(),
baseColor = palette.cb_skyBlue,
flash = false,
width = 28,
show = false
});
orbitMapLabels.Add(Pelabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.PEMarker,
pos = new Vector2(),
baseColor = palette.cb_skyBlue,
flash = false,
width = 28,
show = false
});
orbitMapLabels.Add(Escapelabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.ExitMarker,
pos = new Vector2(),
baseColor = palette.cb_skyBlue,
flash = false,
width = 26,
show = false
});
orbitMapLabels.Add(Encounterlabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.EncounterMarker,
pos = new Vector2(),
baseColor = palette.cb_skyBlue,
flash = false,
width = 26,
show = false
});
orbitMapLabels.Add(Manlabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.ManeuverMarker,
pos = new Vector2(),
baseColor = palette.cb_reddishPurple,
flash = false,
width = 24,
show = false
});
orbitMapLabels.Add(ManEscapelabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.ExitMarker,
pos = new Vector2(),
baseColor = palette.cb_reddishPurple,
flash = false,
width = 26,
show = false
});
orbitMapLabels.Add(ManEncounterlabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.EncounterMarker,
pos = new Vector2(),
baseColor = palette.cb_reddishPurple,
flash = false,
width = 26,
show = false
});
orbitMapLabels.Add(ManAplabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.APMarker,
pos = new Vector2(),
baseColor = palette.cb_reddishPurple,
flash = false,
width = 28,
show = false
});
orbitMapLabels.Add(ManPelabel, new MapLabelInfo()
{
label = "",
image = SCAN_UI_Loader.PEMarker,
pos = new Vector2(),
baseColor = palette.cb_reddishPurple,
flash = false,
width = 28,
show = false
});
}
public void OnDestroy()
{
GameEvents.onVesselChange.Remove(vesselChange);
GameEvents.onVesselWasModified.Remove(vesselChange);
GameEvents.onVesselSOIChanged.Remove(soiChange);
if (uiElement != null)
{
uiElement.gameObject.SetActive(false);
MonoBehaviour.Destroy(uiElement.gameObject);
}
SCANcontroller.controller.unloadPQS(bigmap.Body, mapSource.BigMap);
}
public void SetScale(float scale)
{
if (uiElement != null)
uiElement.SetScale(scale);
}
public void ProcessTooltips()
{
if (uiElement != null)
uiElement.ProcessTooltips();
}
public void Update()
{
if (!_isVisible || data == null || bigmap == null)
return;
if (uiElement == null)
return;
if (!bigmap.isMapComplete())
{
if (SCAN_Settings_Config.Instance.MapGenerationSpeed > 2)
bigmap.getPartialMap(false);
if (SCAN_Settings_Config.Instance.MapGenerationSpeed > 1)
bigmap.getPartialMap(false);
bigmap.getPartialMap(true);
}
if (OrbitToggle && ShowOrbit)
{
if (vessel != null && vessel.mainBody == body && !vessel.LandedOrSplashed)
{
Orbit o = vessel.orbit;
UpdateOrbitIcons(o);
if (o.PeA < 0)
{
if (!clearMapSet)
{
clearMapSet = true;
uiElement.UpdateEQMapTexture(clearMap);
}
}
else if (clearMapSet)
{
clearMapSet = false;
if (bigmap.Projection != MapProjection.Polar)
uiElement.UpdateEQMapTexture(eqMap);
}
if (eq_timer >= eq_update)
UpdateEQMap(o);
eq_timer++;
if (eq_timer > eq_update)
eq_timer = 0;
}
}
if (updateMap)
{
updateMap = false;
uiElement.UpdateMapTexture(bigmap.Map);
if (OrbitToggle && ShowOrbit && bigmap.Projection != MapProjection.Polar && vessel.orbit.PeA > 0)
uiElement.UpdateEQMapTexture(eqMap);
else
uiElement.UpdateEQMapTexture(clearMap);
}
}
private void UpdateOrbitIcons(Orbit o)
{
double startUT = Planetarium.GetUniversalTime();
double UT = startUT;
Color col;
for (int i = 0; i < orbitSteps * 2; i++)
{
SimpleLabelInfo info = orbitLabels[i];
if (info == null)
continue;
int k = i - orbitSteps;
if (k < 0)
UT = startUT - (orbitSteps + k) * (o.period / orbitSteps);
else
UT = startUT + k * o.period * (1f / orbitSteps);
if (double.IsNaN(UT))
{
info.show = false;
continue;
}
if (UT < o.StartUT && o.StartUT != startUT)
{
info.show = false;
continue;
}
if (UT > o.EndUT)
{
info.show = false;
continue;
}
if (double.IsNaN(o.getObtAtUT(UT)))
{
info.show = false;
continue;
}
Vector3d pos = o.getPositionAtUT(UT);
double rotation = 0;
if (body.rotates)
rotation = (360 * ((UT - startUT) / body.rotationPeriod)) % 360;
double alt = body.GetAltitude(pos);
if (alt < 0)
{
if (k < 0)
{
for (int j = k; j < 0; j++)
{
orbitLabels[j + orbitSteps].show = false;
}
i = orbitSteps;
continue;
}
for (int j = k; j < orbitSteps; j++)
{
orbitLabels[j + orbitSteps].show = false;
}
break;
}
double lo = body.GetLongitude(pos) - rotation;
double la = body.GetLatitude(pos);
double lon = (bigmap.projectLongitude(lo, la) + 180) % 360;
double lat = (bigmap.projectLatitude(lo, la) + 90) % 180;
lon = bigmap.scaleLongitude(lon);
lat = bigmap.scaleLatitude(lat);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
{
info.show = false;
continue;
}
lon = lon * bigmap.MapWidth / 360;
lat = lat * bigmap.MapHeight / 180;
if (k < 0)
col = palette.cb_orange;
else
{
if (body.atmosphere && body.atmosphereDepth >= alt)
col = palette.cb_reddishPurple;
else
col = palette.cb_skyBlue;
}
info.show = true;
info.color = col;
info.pos = new Vector2((float)lon, (float)lat);
}
MapLabelInfo Ap = orbitMapLabels[Aplabel];
Vector2 labelPos;
if (o.ApA > 0 && mapPosAtT(o, o.timeToAp, startUT, out labelPos))
{
Ap.show = true;
Ap.pos = labelPos;
Ap.label = o.ApA.ToString("N0");
}
else
Ap.show = false;
orbitMapLabels[Aplabel] = Ap;
MapLabelInfo Pe = orbitMapLabels[Pelabel];
if (o.PeA > 0 && mapPosAtT(o, o.timeToPe, startUT, out labelPos))
{
Pe.show = true;
Pe.pos = labelPos;
Pe.label = o.PeA.ToString("N0");
}
else
Pe.show = false;
orbitMapLabels[Pelabel] = Pe;
if (o.patchEndTransition == Orbit.PatchTransitionType.ESCAPE && mapPosAtT(o, o.EndUT, startUT, out labelPos))
{
MapLabelInfo Esc = orbitMapLabels[Escapelabel];
Esc.show = true;
Esc.pos = labelPos;
orbitMapLabels[Escapelabel] = Esc;
}
else if (o.patchEndTransition == Orbit.PatchTransitionType.ENCOUNTER && mapPosAtT(o, o.EndUT, startUT, out labelPos))
{
MapLabelInfo Enc = orbitMapLabels[Encounterlabel];
Enc.show = true;
Enc.pos = labelPos;
orbitMapLabels[Encounterlabel] = Enc;
}
else
{
MapLabelInfo Esc = orbitMapLabels[Escapelabel];
Esc.show = false;
orbitMapLabels[Escapelabel] = Esc;
MapLabelInfo Enc = orbitMapLabels[Encounterlabel];
Enc.show = false;
orbitMapLabels[Encounterlabel] = Enc;
}
if (vessel.patchedConicSolver != null)
{
if (vessel.patchedConicSolver.maneuverNodes.Count > 0)
{
ManeuverNode n = vessel.patchedConicSolver.maneuverNodes[0];
if (n.patch == o && n.nextPatch != null && n.nextPatch.activePatch && n.UT > startUT - o.period && mapPosAtT(o, n.UT - startUT, startUT, out labelPos))
{
MapLabelInfo Man = orbitMapLabels[Manlabel];
Man.show = true;
Man.pos = labelPos;
orbitMapLabels[Manlabel] = Man;
Orbit next = n.nextPatch;
for (int i = 0; i < orbitSteps; i++)
{
SimpleLabelInfo info = orbitLabels[orbitSteps * 2 + i];
double T = n.UT - startUT + i * next.period / orbitSteps;
if (T + startUT > next.EndUT)
{
for (int j = i; j < orbitSteps; j++)
{
orbitLabels[orbitSteps * 2 + j].show = false;
}
info.show = false;
break;
}
if (mapPosAtT(next, T, startUT, out labelPos))
{
info.color = palette.cb_reddishPurple;
info.show = true;
info.pos = labelPos;
}
else
{
info.show = false;
continue;
}
}
if (next.patchEndTransition == Orbit.PatchTransitionType.ESCAPE)
{
MapLabelInfo ManEsc = orbitMapLabels[ManEscapelabel];
ManEsc.show = true;
ManEsc.pos = labelPos;
orbitMapLabels[ManEscapelabel] = ManEsc;
}
else if (next.patchEndTransition == Orbit.PatchTransitionType.ENCOUNTER)
{
MapLabelInfo ManEnc = orbitMapLabels[ManEncounterlabel];
ManEnc.show = true;
ManEnc.pos = labelPos;
orbitMapLabels[ManEncounterlabel] = ManEnc;
}
else
{
MapLabelInfo ManEsc = orbitMapLabels[ManEscapelabel];
ManEsc.show = false;
orbitMapLabels[ManEscapelabel] = ManEsc;
MapLabelInfo ManEnc = orbitMapLabels[ManEncounterlabel];
ManEnc.show = false;
orbitMapLabels[ManEncounterlabel] = ManEnc;
}
MapLabelInfo ManAp = orbitMapLabels[ManAplabel];
if (next.timeToAp > 0 && n.UT + next.timeToAp < next.EndUT && mapPosAtT(next, n.UT - startUT + next.timeToAp, startUT, out labelPos))
{
ManAp.show = true;
ManAp.pos = labelPos;
}
else
ManAp.show = false;
orbitMapLabels[ManAplabel] = ManAp;
MapLabelInfo ManPe = orbitMapLabels[ManPelabel];
if (next.timeToPe > 0 && n.UT + next.timeToPe < next.EndUT && mapPosAtT(next, n.UT - startUT + next.timeToPe, startUT, out labelPos))
{
ManPe.show = true;
ManPe.pos = labelPos;
}
else
ManPe.show = false;
orbitMapLabels[ManPelabel] = ManPe;
}
else
{
MapLabelInfo Man = orbitMapLabels[Manlabel];
Man.show = false;
orbitMapLabels[Manlabel] = Man;
MapLabelInfo ManEsc = orbitMapLabels[ManEscapelabel];
ManEsc.show = false;
orbitMapLabels[ManEscapelabel] = ManEsc;
MapLabelInfo ManEnc = orbitMapLabels[ManEncounterlabel];
ManEnc.show = false;
orbitMapLabels[ManEncounterlabel] = ManEnc;
MapLabelInfo ManAp = orbitMapLabels[ManAplabel];
ManAp.show = false;
orbitMapLabels[ManAplabel] = ManAp;
MapLabelInfo ManPe = orbitMapLabels[ManPelabel];
ManPe.show = false;
orbitMapLabels[ManPelabel] = ManPe;
for (int i = 0; i < orbitSteps; i++)
{
SimpleLabelInfo info = orbitLabels[orbitSteps * 2 + i];
info.show = false;
}
}
}
else
{
MapLabelInfo Man = orbitMapLabels[Manlabel];
Man.show = false;
orbitMapLabels[Manlabel] = Man;
MapLabelInfo ManEsc = orbitMapLabels[ManEscapelabel];
ManEsc.show = false;
orbitMapLabels[ManEscapelabel] = ManEsc;
MapLabelInfo ManEnc = orbitMapLabels[ManEncounterlabel];
ManEnc.show = false;
orbitMapLabels[ManEncounterlabel] = ManEnc;
MapLabelInfo ManAp = orbitMapLabels[ManAplabel];
ManAp.show = false;
orbitMapLabels[ManAplabel] = ManAp;
MapLabelInfo ManPe = orbitMapLabels[ManPelabel];
ManPe.show = false;
orbitMapLabels[ManPelabel] = ManPe;
for (int i = 0; i < orbitSteps; i++)
{
SimpleLabelInfo info = orbitLabels[orbitSteps * 2 + i];
info.show = false;
}
}
}
}
private void UpdateEQMap(Orbit o)
{
if (o.PeA < 0)
return;
if (bigmap.Projection == MapProjection.Polar)
return;
for (int i = eq_an.Length - 1; i >= 0; i--)
{
eq_an[i] = false;
eq_dn[i] = false;
}
double startUT = Planetarium.GetUniversalTime();
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);
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;
double rotDN = 0;
if (body.rotates)
{
rotAN = ((360 * ((UTAN - startUT) / body.rotationPeriod)) % 360);
rotDN = ((360 * ((UTDN - startUT) / body.rotationPeriod)) % 360);
}
double loAN = body.GetLongitude(pAN) - rotAN;
double loDN = body.GetLongitude(pDN) - rotDN;
int lonAN = (int)(((bigmap.projectLongitude(loAN, 0) + 180) % 360) * eq_an.Length / 360f);
int lonDN = (int)(((bigmap.projectLongitude(loDN, 0) + 180) % 360) * eq_dn.Length / 360f);
if (lonAN >= 0 && lonAN < eq_an.Length)
eq_an[lonAN] = true;
if (lonDN >= 0 && lonDN < eq_dn.Length)
eq_dn[lonDN] = true;
}
for (int y = 0; y < eq_height; y++)
{
bool down = y < eq_height / 2;
Color32 lc = palette.Clear;
for (int x = 0; x < eq_an.Length; x++)
{
bool cross;
Color32 c = palette.Clear;
if (down)
cross = eq_dn[x];
else
cross = eq_an[x];
if (cross)
{
if (y == 0 || y == eq_height - 1)
c = palette.Black;
else
{
if (lc.r == palette.Clear.r)
eq_pix[y * eq_an.Length + x - 1] = palette.Black;
c = down ? c_dn : c_an;
}
}
else
{
if (lc.r != palette.Clear.r && lc.r != palette.Black.r)
c = palette.Black;
}
eq_pix[y * eq_an.Length + x] = c;
lc = c;
}
}
eqMap.SetPixels32(eq_pix);
eqMap.Apply();
}
private double meanForTrue(double TA, double e)
{
TA = TA * Mathf.Deg2Rad;
double EA = Math.Acos((e + Math.Cos(TA)) / (1 + e * Math.Cos(TA)));
if (TA > Math.PI)
EA = 2 * Math.PI - EA;
double MA = EA - e * Math.Sin(EA);
// the mean anomaly isn't really an angle, but I'm a simple person
return MA * Mathf.Rad2Deg;
}
private bool mapPosAtT(Orbit o, double dT, double startUT, out Vector2 labelPos)
{
labelPos = new Vector2();
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 (body.rotates)
rotation = (360 * (dT / vessel.mainBody.rotationPeriod)) % 360;
double lo = (body.GetLongitude(pos) - rotation);
double la = (body.GetLatitude(pos));
double lon = (bigmap.projectLongitude(lo, la) + 180) % 360;
double lat = (bigmap.projectLatitude(lo, la) + 90) % 180;
lat = bigmap.scaleLatitude(lat);
lon = bigmap.scaleLongitude(lon);
if (lat < 0 || lon < 0 || lat > 180 || lon > 360)
return false;
lon = lon * bigmap.MapWidth / 360;
lat = lat * bigmap.MapHeight / 180;
labelPos = new Vector2((float)lon, (float)lat);
return true;
}
catch (Exception)