Unify junction props

src/ReactorMaintenance.Simulation/Balancing.cs

@@ -19,6 +19,24 @@ public abstract class Balancing
         return value >= caution ? EBand.Caution : EBand.Safe;
     }
 
+    public IReadOnlyList<JunctionRatioPreset> JunctionRatios(int outflowCount)
+    {
+        return outflowCount switch {
+            2 => TwoOutflowJunctionRatios,
+            3 => ThreeOutflowJunctionRatios,
+            _ => Array.Empty<JunctionRatioPreset>()
+        };
+    }
+
+    public float[] JunctionWeights(int outflowCount, int mode)
+    {
+        var ratios = JunctionRatios(outflowCount);
+        if (ratios.Count == 0)
+            return Array.Empty<float>();
+
+        return ratios[Math.Clamp(mode, 0, ratios.Count - 1)].Weights;
+    }
+
     public abstract int DefaultLevelWidth { get; }
     public abstract int DefaultLevelHeight { get; }
     public abstract int MinimumLevelSize { get; }
@@ -47,6 +65,8 @@ public abstract class Balancing
     public abstract float SourceIntensity { get; }
     public abstract float DistanceAmountFalloff { get; }
     public abstract float DistanceIntensityFalloff { get; }
+    public abstract IReadOnlyList<JunctionRatioPreset> TwoOutflowJunctionRatios { get; }
+    public abstract IReadOnlyList<JunctionRatioPreset> ThreeOutflowJunctionRatios { get; }
     public abstract float ConsumerRequiredAmount { get; }
     public abstract float ConsumerRequiredIntensity { get; }
     public abstract float LeakBaseAmount { get; }
@@ -69,4 +89,4 @@ public abstract class Balancing
     public abstract int RemedyBlockTurns { get; }
     public abstract int HeatShieldSteps { get; }
     public abstract int InventoryCapacityPerRemedy { get; }
-}
+}