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SimPart.cs
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/
SimPart.cs
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/*
* Copyright Lamont Granquist, Sebastien Gaggini and the MechJeb contributors
* SPDX-License-Identifier: LicenseRef-PD-hp OR Unlicense OR CC0-1.0 OR 0BSD OR MIT-0 OR MIT OR LGPL-2.1+
*/
#nullable enable
using System.Collections.Generic;
using System.Text;
using MechJebLib.Utils;
using static System.Math;
namespace MechJebLib.Simulations
{
public class SimPart
{
private static readonly ObjectPool<SimPart> _pool = new ObjectPool<SimPart>(New, Clear);
public readonly List<SimPartModule> Modules = new List<SimPartModule>();
public readonly List<SimPart> CrossFeedPartSet = new List<SimPart>();
public readonly List<SimPart> Links = new List<SimPart>();
public readonly Dictionary<int, SimResource> Resources = new Dictionary<int, SimResource>();
private readonly Dictionary<int, double> _resourceDrains = new Dictionary<int, double>();
private readonly Dictionary<int, double> _rcsDrains = new Dictionary<int, double>();
public int DecoupledInStage;
public bool StagingOn;
public int InverseStage;
public SimVessel Vessel;
public string Name;
public bool ActivatesEvenIfDisconnected;
public bool IsThrottleLocked;
public int ResourcePriority;
public double ResourceRequestRemainingThreshold;
public bool IsEnabled;
public double Mass;
public double DryMass;
public double CrewMass;
public double ModulesStagedMass;
public double ModulesUnstagedMass;
public double DisabledResourcesMass;
public double EngineResiduals;
public bool IsRoot;
public bool IsLaunchClamp;
public bool IsEngine;
public bool IsSepratron => IsEngine && IsThrottleLocked && ActivatesEvenIfDisconnected && InverseStage == DecoupledInStage;
private SimPart()
{
// Always set in Borrow()
Vessel = null!;
Name = null!;
}
public void UpdateMass()
{
if (IsLaunchClamp)
{
Mass = 0;
return;
}
Mass = DryMass + CrewMass + DisabledResourcesMass;
Mass += Vessel.CurrentStage <= InverseStage ? ModulesStagedMass : ModulesUnstagedMass;
//ModulesCurrentMass = Mass;
foreach (SimResource resource in Resources.Values)
Mass += resource.Amount * resource.Density;
}
public void Dispose()
{
foreach (SimPartModule m in Modules)
m.Dispose();
_pool.Release(this);
}
public static SimPart Borrow(SimVessel vessel, string name)
{
SimPart part = _pool.Borrow();
part.Vessel = vessel;
part.Name = name;
return part;
}
private static SimPart New() => new SimPart();
private static void Clear(SimPart p)
{
p.Modules.Clear();
p.Links.Clear();
p.CrossFeedPartSet.Clear();
p.Resources.Clear();
p._resourceDrains.Clear();
p._rcsDrains.Clear();
p.Vessel = null!;
p.IsLaunchClamp = false;
p.IsEngine = false;
p.IsThrottleLocked = false;
}
public bool TryGetResource(int resourceId, out SimResource resource) => Resources.TryGetValue(resourceId, out resource);
public void ApplyResourceDrains(double dt)
{
foreach (int id in _resourceDrains.Keys)
Resources[id] = Resources[id].Drain(dt * _resourceDrains[id]);
}
public void ApplyRCSDrains(double dt)
{
foreach (int id in _rcsDrains.Keys)
Resources[id] = Resources[id].RCSDrain(dt * _rcsDrains[id]);
}
private readonly List<int> _resourceKeys = new List<int>();
public void UnapplyRCSDrains()
{
_resourceKeys.Clear();
foreach (int id in Resources.Keys)
_resourceKeys.Add(id);
foreach (int id in _resourceKeys)
Resources[id] = Resources[id].ResetRCS();
}
public void UpdateResourceResidual(double residual, int resourceId)
{
if (!Resources.TryGetValue(resourceId, out SimResource resource))
return;
resource.Residual = Max(resource.Residual, residual);
Resources[resourceId] = resource;
}
public void ClearResiduals()
{
_resourceKeys.Clear();
foreach (int id in Resources.Keys)
_resourceKeys.Add(id);
foreach (int id in _resourceKeys)
{
SimResource resource = Resources[id];
resource.Residual = 0;
Resources[id] = resource;
}
}
public double ResidualThreshold(int resourceId) => Resources[resourceId].ResidualThreshold + ResourceRequestRemainingThreshold;
public void ClearResourceDrains() => _resourceDrains.Clear();
public void ClearRCSDrains() => _rcsDrains.Clear();
public void AddResourceDrain(int resourceId, double resourceConsumption)
{
if (_resourceDrains.TryGetValue(resourceId, out double resourceDrain))
_resourceDrains[resourceId] = resourceDrain + resourceConsumption;
else
_resourceDrains.Add(resourceId, resourceConsumption);
}
public void AddRCSDrain(int resourceId, double resourceConsumption)
{
if (_rcsDrains.TryGetValue(resourceId, out double resourceDrain))
_rcsDrains[resourceId] = resourceDrain + resourceConsumption;
else
_rcsDrains.Add(resourceId, resourceConsumption);
}
public double ResourceMaxTime()
{
double maxTime = double.MaxValue;
foreach (SimResource resource in Resources.Values)
{
if (resource.Free)
continue;
if (resource.Amount <= ResourceRequestRemainingThreshold)
continue;
if (!_resourceDrains.TryGetValue(resource.Id, out double resourceDrain))
continue;
double dt = (resource.Amount - resource.ResidualThreshold) / resourceDrain;
maxTime = Min(maxTime, dt);
}
return maxTime;
}
public double RCSMaxTime()
{
double maxTime = double.MaxValue;
foreach (SimResource resource in Resources.Values)
{
if (resource.Free)
continue;
if (resource.Amount <= ResourceRequestRemainingThreshold)
continue;
if (!_rcsDrains.TryGetValue(resource.Id, out double resourceDrain))
continue;
double dt = (resource.Amount - resource.ResidualThreshold) / resourceDrain;
maxTime = Min(maxTime, dt);
}
return maxTime;
}
public override string ToString()
{
var sb = new StringBuilder();
sb.AppendLine($"{Name}: ");
sb.Append(" Neighbors:");
for (int i = 0; i < Links.Count; i++)
sb.Append($" {Links[i].Name}");
sb.AppendLine();
//sb.Append(" CrossFeedPartSet:");
//for (int i = 0; i < CrossFeedPartSet.Count; i++)
// sb.Append($" {CrossFeedPartSet[i].Name}");
//sb.AppendLine();
sb.Append(" Resources:");
foreach (SimResource resource in Resources.Values)
sb.Append($" {resource.Id}={resource.Amount}*{resource.Density}");
sb.AppendLine();
sb.Append($" DecoupledInStage: {DecoupledInStage} InverseStage: {InverseStage}");
sb.AppendLine();
return sb.ToString();
}
}
}