// from MyParachute.UpdateParachute()
public static void Parachute_GetLoadEstimate(MyParachuteDefinition parachute, float targetDescendVelocity, out float maxMass, out float disreefAtmosphere)
{
float atmosphere = 1.0f;
float atmosMod = 10.0f * (atmosphere - parachute.ReefAtmosphereLevel);
if (atmosMod <= 0.5f || double.IsNaN(atmosMod))
{
atmosMod = 0.5f;
}
else
{
atmosMod = (float)Math.Log(atmosMod - 0.99f) + 5.0f;
if (atmosMod < 0.5f || double.IsNaN(atmosMod))
{
atmosMod = 0.5f;
}
}
float gridSize = MyDefinitionManager.Static.GetCubeSize(parachute.CubeSize);
// basically the atmosphere level at which atmosMod is above 0.5; finds real atmosphere level at which chute starts to fully open
// thanks to Equinox for helping with the math here and at maxMass :}
disreefAtmosphere = ((float)Math.Exp(-4.5) + 1f) / 10 + parachute.ReefAtmosphereLevel;
float chuteSize = (atmosMod * parachute.RadiusMultiplier * gridSize) / 2.0f;
float chuteArea = MathHelper.Pi * chuteSize * chuteSize;
float realAirDensity = (atmosphere * 1.225f);
maxMass = 2.5f * realAirDensity * (targetDescendVelocity * targetDescendVelocity) * chuteArea * parachute.DragCoefficient / GAME_EARTH_GRAVITY;
}
private static List <MyDefinitionId> GetParachuteList(MyObjectBuilder_CubeBlock cube)
{
List <MyDefinitionId> parachuteIds = new List <MyDefinitionId>();
try
{
MyParachuteDefinition parachuteDefinition = MyDefinitionManager.Static.GetCubeBlockDefinition(cube.GetId()) as MyParachuteDefinition;
if (parachuteDefinition == null)
{
return(parachuteIds);
}
parachuteIds.Add(parachuteDefinition.MaterialDefinitionId);
}
catch (Exception e)
{
Core.GeneralLog.WriteToLog("GetParachuteList", $"Exception getting parachute list! {e}");
}
return(parachuteIds);
}
