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kOS expose hoverslam deltav+biome to kOS scripts #2243

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Merged
lamont-granquist merged 1 commit into from
Jun 15, 2026
Merged

kOS expose hoverslam deltav+biome to kOS scripts #2243

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8 changes: 5 additions & 3 deletions MechJeb2/MechJebModuleHoverslamSimulation.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -57,8 +57,7 @@ public string Touchdown() =>
// TODO: This counts down even if you don't ignite and i'm not entirely certain what to do about it
// TODO: this doesn't account for planned vertical descent deltaV
[ValueInfoItem("#MechJeb_HoverslamDeltaV", InfoItem.Category.Hoverslam, tooltip = "#MechJeb_HoverslamDeltaV_tooltip")] //Hoverslam Δv
public string HoverslamDeltaV() =>
IsFinite(LandingUT) ? DeltaV(LandingCountdown - (IgnitionUT < VesselState.time ? 0 : IgnitionCountdown)).ToSI() + "m/s" : "N/A";
public string HoverslamDeltaV() => IsFinite(DeltaV) ? DeltaV.ToSI() + "m/s" : "N/A";

[ValueInfoItem("#MechJeb_HoverslamCoordinates", InfoItem.Category.Hoverslam, width = 90, tooltip = "#MechJeb_HoverslamCoordinates_tooltip")] //Coordinates
public string HoverslamCoordinates() => Coordinates.ToStringDMS(Lat, Lng, true);
Expand Down Expand Up @@ -111,6 +110,7 @@ public string HoverslamDeltaV() =>
public double Lng;
public double IgnitionCountdown => IgnitionUT - VesselState.time;
public double LandingCountdown => LandingUT - VesselState.time;
public double DeltaV;
public double FinalDescentSpeed; // should be positive
public Vector3d IgnitionAttitude;
// ReSharper restore MemberCanBePrivate.Global
Expand Down Expand Up @@ -150,6 +150,7 @@ private void Reset()
LandingPosition = new Vector3d(double.NaN, double.NaN, double.NaN);
IgnitionUT = double.NaN;
LandingUT = double.NaN;
DeltaV = double.NaN;
IgnitionAttitude = new Vector3d(double.NaN, double.NaN, double.NaN);
Lat = 0;
Lng = 0;
Expand All @@ -158,7 +159,7 @@ private void Reset()
_lastCycleUT = 0;
}

private double DeltaV(double burnTime)
private double CalculateDeltaV(double burnTime)
{
Core.StageStats.RequestUpdate();

Expand Down Expand Up @@ -224,6 +225,7 @@ public override void OnFixedUpdate()
MainBody.GetLatLngAltAtUT(LandingUT, LandingPosition, out Lat, out Lng, out _);
TerrainAltitude = MainBody.TerrainAltitude(Lat, Lng, true);
Slope = MainBody.GetPQSSlopeDegrees(Lat, Lng);
DeltaV = CalculateDeltaV(LandingCountdown - (IgnitionUT < VesselState.time ? 0 : IgnitionCountdown));
}

if (_hoverslam.IsFaulted && _hoverslam.ExceptionMessage != null)
Expand Down
4 changes: 4 additions & 0 deletions MechJebKos/HoverslamSimulationBinding.cs
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Expand Up @@ -37,6 +37,8 @@ protected override void InitializeSuffixes()
"Predicted landing latitude in degrees."));
AddSuffix("LONGITUDE", new Suffix<ScalarValue>(() => Module.Lng,
"Predicted landing longitude in degrees."));
AddSuffix("BIOME", new Suffix<StringValue>(() => Module.Biome(),
"Biome name at the predicted landing site (\"N/A\" if no solution)."));
AddSuffix("TERRAINALTITUDE", new Suffix<ScalarValue>(() => Module.TerrainAltitude,
"Terrain altitude at the predicted landing site in meters."));
AddSuffix("SLOPE", new Suffix<ScalarValue>(() => Module.Slope,
Expand All @@ -45,6 +47,8 @@ protected override void InitializeSuffixes()
"Planned final descent speed in m/s."));
AddSuffix("FINALTHRUSTACCEL", new Suffix<ScalarValue>(() => Module.FinalThrustAccel,
"Final thrust acceleration in m/s^2 (-1 if no solution)."));
AddSuffix("DELTAV", new Suffix<ScalarValue>(() => Module.DeltaV,
"Estimated hoverslam delta-v in m/s (NaN if no solution)."));

AddSuffix("MAPLANDINGPREDICTION", new SetSuffix<BooleanValue>(() => Module.MapLandingPrediction, value => Module.MapLandingPrediction = value,
"Draw the predicted landing site marker on the map."));
Expand Down
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