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Add branch-aware junction flow

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This commit is contained in:
Frank Tovar
2026-05-10 17:29:19 +02:00
parent b232c0319f
commit cb28eee1dd
6 changed files with 251 additions and 54 deletions
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43
src/ReactorMaintenance.Simulation/SimulationEngine.cs
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@@ -1,4 +1,4 @@
namespace ReactorMaintenance.Simulation;
namespace ReactorMaintenance.Simulation;
public sealed class SimulationEngine
{
@@ -156,9 +156,10 @@ public sealed class SimulationEngine
{
var layer = level.Layer(carrier).ToArray();
var sources = AllPositions(level).Where(position => level.GetProp(position) is { Type: EPropType.Flow, SwitchState: EPropSwitchState.Enabled, Carrier: var sourceCarrier } && sourceCarrier == carrier && level.GetUnderground(position, carrier).CarriesFlow).ToArray();
var junctions = JunctionFlowAnalyzer.Analyze(level).Where(junction => junction.IsValid && junction.Carrier == carrier).ToDictionary(junction => junction.Position);
foreach (var source in sources)
ApplySourceFlow(level, layer, source, carrier);
ApplySourceFlow(level, layer, source, carrier, junctions);
return carrier switch {
ECarrierType.Fuel => level with { Fuel = layer },
@@ -168,7 +169,7 @@ public sealed class SimulationEngine
};
}
private static void ApplySourceFlow(LevelState level, UndergroundCell[] layer, GridPosition source, ECarrierType carrier)
private static void ApplySourceFlow(LevelState level, UndergroundCell[] layer, GridPosition source, ECarrierType carrier, IReadOnlyDictionary<GridPosition, JunctionFlow> junctions)
{
var open = new Queue<(GridPosition Position, int Distance, float AmountFactor, float IntensityFactor)>();
var best = new Dictionary<GridPosition, float>();
@@ -191,7 +192,7 @@ public sealed class SimulationEngine
if (!level.GetUnderground(next, carrier).CarriesFlow)
continue;
var weights = BranchWeights(level, current.Position, next);
var weights = BranchWeights(current.Position, next, junctions);
var amountFactor = current.AmountFactor * weights.Amount;
var intensityFactor = current.IntensityFactor * weights.Intensity;
if (amountFactor <= 0 || intensityFactor <= 0)
@@ -206,38 +207,12 @@ public sealed class SimulationEngine
}
}
private static (float Amount, float Intensity) BranchWeights(LevelState level, GridPosition from, GridPosition to)
private static (float Amount, float Intensity) BranchWeights(GridPosition from, GridPosition to, IReadOnlyDictionary<GridPosition, JunctionFlow> junctions)
{
var prop = level.GetProp(from);
return prop.Type switch {
EPropType.TJunction => TJunctionWeights(prop.TJunctionMode),
EPropType.CrossJunction => CrossJunctionWeights(prop.CrossJunctionMode),
_ => (1, 1)
};
}
if (!junctions.TryGetValue(from, out var junction))
return (1, 1);
private static (float Amount, float Intensity) TJunctionWeights(ETJunctionMode mode)
{
var weight = mode switch {
ETJunctionMode.ZeroFour => 0,
ETJunctionMode.OneThree => 0.25f,
ETJunctionMode.TwoTwo => 0.5f,
ETJunctionMode.ThreeOne => 0.75f,
ETJunctionMode.FourZero => 1,
_ => throw new ArgumentOutOfRangeException(nameof(mode), mode, "Unsupported T-junction mode.")
};
return (weight, weight);
}
private static (float Amount, float Intensity) CrossJunctionWeights(ECrossJunctionMode mode)
{
var weight = mode switch {
ECrossJunctionMode.ZeroThreeThree => 0,
ECrossJunctionMode.ThreeZeroThree => 0.5f,
ECrossJunctionMode.ThreeThreeZero => 0.5f,
ECrossJunctionMode.TwoTwoTwo => 1f / 3f,
_ => throw new ArgumentOutOfRangeException(nameof(mode), mode, "Unsupported cross-junction mode.")
};
var weight = junction.WeightFor(to);
return (weight, weight);
}