Align schema bounds with the hydrology validator

Studio schema annotations now match the validator ranges; mouthLevelingDistance must fit inside maximumRouteLength.

core/src/main/java/art/arcane/iris/core/pack/PackHydrologyValidator.java

@@ -186,6 +186,10 @@ final class PackHydrologyValidator {
         SourceBudget undergroundBudget = underground == null
                 ? SourceBudget.defaults()
                 : validateUnderground(path + ".underground", underground, dimension, errors, warnings);
+        if (underground != null
+                && integerValue(underground, "mouthLevelingDistance", 64) > routingValues.maximumRouteLength()) {
+            errors.add(path + ".underground.mouthLevelingDistance must not exceed routing.maximumRouteLength.");
+        }
         if (grottos != null) {
             validateGrottos(path + ".grottos", grottos, routingValues, errors);
         }

core/src/main/java/art/arcane/iris/engine/object/IrisRiverMouthConfig.java

@@ -18,7 +18,7 @@ public class IrisRiverMouthConfig {
     private double flareRatio = 1.6D;
 
     @MinNumber(0)
-    @MaxNumber(64)
+    @MaxNumber(32)
     @Desc("Maximum number of blocks the recorded mouth footprint may enter the ocean before terminating.")
     private int maximumOceanApron = 8;
 }

core/src/main/java/art/arcane/iris/engine/object/IrisRiverPolicy.java

@@ -74,8 +74,8 @@ public class IrisRiverPolicy {
     @Desc("Multiplier applied to terrain-guided routing cost.")
     private Double routingMultiplier = null;
 
-    @MinNumber(0.0001)
+    @MinNumber(0)
-    @MaxNumber(16)
+    @MaxNumber(4)
     @Desc("Multiplier applied to the eroded bank width outside the shore band.")
     private Double bankMultiplier = null;
 

core/src/main/java/art/arcane/iris/engine/object/IrisRiverRoutingConfig.java

@@ -20,7 +20,7 @@ public class IrisRiverRoutingConfig {
     private int tileSize = 2048;
 
     @MinNumber(8)
-    @MaxNumber(512)
+    @MaxNumber(64)
     @Desc("Spacing in blocks between terrain samples used to build the drainage graph.")
     private int sampleSpacing = 64;
 
@@ -52,22 +52,22 @@ public class IrisRiverRoutingConfig {
     private KList<IrisRiverInlandOutlet> inlandOutlets = new KList<>();
 
     @MinNumber(0)
-    @MaxNumber(64)
+    @MaxNumber(8)
     @Desc("How strongly routes prefer lower ground.")
     private double valleyPreference = 1.5D;
 
     @MinNumber(0)
-    @MaxNumber(1024)
+    @MaxNumber(128)
     @Desc("Cost per block of rise along a route.")
     private double uphillPenalty = 24D;
 
     @MinNumber(0)
-    @MaxNumber(64)
+    @MaxNumber(16)
     @Desc("Cost per unit of terrain slope along a route.")
     private double slopePenalty = 2D;
 
     @MinNumber(0)
-    @MaxNumber(16)
+    @MaxNumber(1)
     @Desc("How strongly routes are drawn toward existing drainage.")
     private double confluenceAttraction = 0.2D;
 }

core/src/main/java/art/arcane/iris/engine/object/IrisSurfaceRiverBankConfig.java

@@ -12,18 +12,18 @@ import lombok.experimental.Accessors;
 @Desc("Controls the lip, shore band and eroded valley around a surface river.")
 @Data
 public class IrisSurfaceRiverBankConfig {
-    @MinNumber(1)
+    @MinNumber(0)
-    @MaxNumber(8)
+    @MaxNumber(4)
     @Desc("Blocks the bank top sits above the water surface at the channel edge.")
     private int freeboard = 1;
 
-    @MinNumber(0)
+    @MinNumber(0.5)
-    @MaxNumber(8)
+    @MaxNumber(6)
     @Desc("Width in blocks of the shore band that receives shore biome content.")
     private double shoreWidth = 1.5D;
 
-    @MinNumber(1)
+    @MinNumber(0.5)
-    @MaxNumber(16)
+    @MaxNumber(12)
     @Desc("Horizontal run in blocks of eroded bank per block of cut depth.")
     private double blendSlope = 3D;
 
@@ -33,7 +33,7 @@ public class IrisSurfaceRiverBankConfig {
     private int minimumBlendWidth = 4;
 
     @MinNumber(1)
-    @MaxNumber(128)
+    @MaxNumber(64)
     @Desc("Widest eroded band outside the shore, in blocks.")
     private int maximumBlendWidth = 32;
 

core/src/main/java/art/arcane/iris/engine/object/IrisSurfaceRiverChannelConfig.java

@@ -18,13 +18,13 @@ public class IrisSurfaceRiverChannelConfig {
     @Desc("Wet bed depth in blocks at the channel center.")
     private IrisStyledRange depth = range(2D, 4D, 768D);
 
-    @MinNumber(1)
+    @MinNumber(0)
-    @MaxNumber(16)
+    @MaxNumber(3)
     @Desc("Blocks the water surface sits below the lowest natural bank beside the channel.")
     private int inset = 1;
 
-    @MinNumber(0)
+    @MinNumber(1)
-    @MaxNumber(64)
+    @MaxNumber(32)
     @Desc("Maximum cut below natural terrain at the channel center before a course is rejected.")
     private int maximumIncision = 10;
 
@@ -33,8 +33,8 @@ public class IrisSurfaceRiverChannelConfig {
     @Desc("Coherent variation of the wet outline and bed as a fraction of the channel size.")
     private double roughness = 0.25D;
 
-    @MinNumber(3)
+    @MinNumber(4)
-    @MaxNumber(128)
+    @MaxNumber(64)
     @Desc("Wavelength in blocks of the outline and bed variation.")
     private int roughnessWavelength = 16;
 

core/src/main/java/art/arcane/iris/engine/object/IrisSurfaceRiverFlowConfig.java

@@ -13,12 +13,12 @@ import lombok.experimental.Accessors;
 @Data
 public class IrisSurfaceRiverFlowConfig {
     @MinNumber(1)
-    @MaxNumber(16)
+    @MaxNumber(8)
     @Desc("Shortest level run in blocks between one-block steps before consecutive steps are labelled a cascade.")
     private int cascadeRun = 2;
 
     @MinNumber(2)
-    @MaxNumber(24)
+    @MaxNumber(32)
     @Desc("Smallest natural cliff in blocks that becomes a waterfall instead of a cascade.")
     private int waterfallMinimumDrop = 6;
 }

core/src/main/java/art/arcane/iris/engine/object/IrisUndergroundRiverConfig.java

@@ -33,8 +33,8 @@ public class IrisUndergroundRiverConfig {
     @Desc("Allow accepted underground courses to connect transactionally to existing caves.")
     private boolean connectToExistingCaves = true;
 
-    @MinNumber(0)
+    @MinNumber(16)
-    @MaxNumber(2048)
+    @MaxNumber(512)
     @Desc("Distance in blocks over which an ocean-bound underground river levels to sea level before its mouth.")
     private int mouthLevelingDistance = 64;
 

core/src/test/java/art/arcane/iris/core/pack/PackHydrologyValidatorTest.java

@@ -113,6 +113,21 @@ public class PackHydrologyValidatorTest {
         assertTrue(result.errors().toString(), result.errors().isEmpty());
     }
 
+    @Test
+    public void rejectsMouthLevelingDistanceBeyondTheRouteLength() throws Exception {
+        File pack = pack(riversDimension("""
+                {
+                  "enabled": true,
+                  "routing": {"tileSize": 1024, "sampleSpacing": 64, "maximumRouteLength": 256, "oceanOutlets": true},
+                  "underground": {"mouthLevelingDistance": 512}
+                }
+                """, ""));
+
+        PackHydrologyValidator.Validation result = validate(pack);
+
+        assertContains(result.errors(), "mouthLevelingDistance must not exceed routing.maximumRouteLength");
+    }
+
     @Test
     public void acceptsEverySchemaBoundAtItsMaximum() throws Exception {
         File pack = pack(riversDimension("""