- Forgot to commit this before creating a branch..

- Dev test of Jigsaw structures biome exclusions

core/src/main/java/com/volmit/iris/engine/mantle/components/MantleJigsawComponent.java

@@ -93,13 +93,33 @@ public class MantleJigsawComponent extends IrisMantleComponent {
         try {
             if (i == null || checkMinDistances(i.collectMinDistances(), x, z, cachedRegions, cache, distanceCache))
                 return false;
-        } catch (Throwable ignored) {}
+            if (!checkBiomes(i, x, z))
+                return false;
+        } catch (Throwable ignored) {
+        }
         RNG rng = new RNG(seed);
         IrisPosition position = new IrisPosition((x << 4) + rng.nextInt(15), 0, (z << 4) + rng.nextInt(15));
         IrisJigsawStructure structure = getData().getJigsawStructureLoader().load(i.getStructure());
         return place(writer, position, structure, rng, false);
     }
 
+    private boolean checkBiomes(IrisJigsawStructurePlacement placement, int x, int z) {
+        // todo: biome getting kinda sucks
+        var biome = getEngineMantle().getEngine().getSurfaceBiome((x << 4) + 8, (z << 4) + 8);
+        if (biome != null) {
+            if (biome.isSea() && placement.getExclude().isExcludeOceanBiomes()) {
+                return false;
+            }
+            if (biome.isLand() && placement.getExclude().isExcludeLandBiomes()) {
+                return false;
+            }
+            if (biome.isShore() && placement.getExclude().isExcludeShoreBiomes()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     @ChunkCoordinates
     private boolean checkMinDistances(KMap<String, Integer> minDistances, int x, int z, KSet<Position2> cachedRegions, KMap<String, KSet<Position2>> cache, KMap<Position2, Double> distanceCache) {
         int range = 0;

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawStructurePlacement.java

@@ -78,6 +78,9 @@ public class IrisJigsawStructurePlacement implements IRare {
     @Desc("Threshold for noise style")
     private double threshold = 0.5;
 
+    @Desc("Exclude the structure from certain places")
+    private IrisPlacementExclusion exclude = new IrisPlacementExclusion();
+
     @ArrayType(type = IrisJigsawMinDistance.class)
     @Desc("List of minimum distances to check for")
     private KList<IrisJigsawMinDistance> minDistances = new KList<>();

core/src/main/java/com/volmit/iris/engine/object/IrisPlacementExclusion.java

@@ -0,0 +1,33 @@
+package com.volmit.iris.engine.object;
+
+import com.volmit.iris.engine.object.annotations.ArrayType;
+import com.volmit.iris.engine.object.annotations.Desc;
+import com.volmit.iris.engine.object.annotations.RegistryListResource;
+import com.volmit.iris.util.collection.KList;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.Accessors;
+
+@Accessors(chain = true)
+@NoArgsConstructor
+@AllArgsConstructor
+@Desc("Represents an image map")
+@Data
+public class IrisPlacementExclusion {
+
+    @Desc("Excludes the structure from all ocean biomes defined in region")
+    private boolean excludeOceanBiomes;
+
+    @Desc("Excludes the structure from all shore biomes defined in region")
+    private boolean excludeShoreBiomes;
+
+    @Desc("Excludes the structure from all land biomes defined in region")
+    private boolean excludeLandBiomes;
+
+    @RegistryListResource(IrisBiome.class)
+    @Desc("tbd")
+    @ArrayType(min = 1, type = String.class)
+    private KList<String> excludeBiomes = new KList<>();
+
+}