add jigsaw structure marker

core/src/main/java/com/volmit/iris/engine/jigsaw/PlannedStructure.java

@@ -30,6 +30,7 @@ import com.volmit.iris.util.mantle.Mantle;
 import com.volmit.iris.util.math.Position2;
 import com.volmit.iris.util.math.RNG;
 import com.volmit.iris.util.matter.slices.container.JigsawPieceContainer;
+import com.volmit.iris.util.matter.slices.container.JigsawStructureContainer;
 import com.volmit.iris.util.matter.slices.container.JigsawStructuresContainer;
 import com.volmit.iris.util.scheduling.J;
 import lombok.Data;
@@ -146,10 +147,12 @@ public class PlannedStructure {
 
         int id = rng.i(0, Integer.MAX_VALUE);
         JigsawPieceContainer container = JigsawPieceContainer.toContainer(i.getPiece());
+        JigsawStructureContainer structureContainer = JigsawStructureContainer.toContainer(structure);
         i.setRealPositions(xx, height, zz, placer);
         return v.place(xx, height, zz, placer, options, rng, (b, data) -> {
             e.set(b.getX(), b.getY(), b.getZ(), v.getLoadKey() + "@" + id);
             e.set(b.getX(), b.getY(), b.getZ(), container);
+            e.set(b.getX(), b.getY(), b.getZ(), structureContainer);
             if (data instanceof IrisBlockData d) {
                 e.set(b.getX(), b.getY(), b.getZ(), d.getCustom());
             }

core/src/main/java/com/volmit/iris/util/matter/slices/JigsawStructureMatter.java

@@ -0,0 +1,36 @@
+package com.volmit.iris.util.matter.slices;
+
+import com.volmit.iris.util.data.palette.Palette;
+import com.volmit.iris.util.matter.Sliced;
+import com.volmit.iris.util.matter.slices.container.JigsawStructureContainer;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+@Sliced
+public class JigsawStructureMatter extends RawMatter<JigsawStructureContainer> {
+
+    public JigsawStructureMatter() {
+        this(1, 1, 1);
+    }
+
+    public JigsawStructureMatter(int width, int height, int depth) {
+        super(width, height, depth, JigsawStructureContainer.class);
+    }
+
+    @Override
+    public Palette<JigsawStructureContainer> getGlobalPalette() {
+        return null;
+    }
+
+    @Override
+    public void writeNode(JigsawStructureContainer b, DataOutputStream dos) throws IOException {
+        dos.writeUTF(b.getLoadKey());
+    }
+
+    @Override
+    public JigsawStructureContainer readNode(DataInputStream din) throws IOException {
+        return new JigsawStructureContainer(din.readUTF());
+    }
+}

core/src/main/java/com/volmit/iris/util/matter/slices/container/JigsawStructureContainer.java

@@ -0,0 +1,14 @@
+package com.volmit.iris.util.matter.slices.container;
+
+import com.volmit.iris.engine.object.IrisJigsawStructure;
+
+public class JigsawStructureContainer extends RegistrantContainer<IrisJigsawStructure> {
+
+    public JigsawStructureContainer(String loadKey) {
+        super(IrisJigsawStructure.class, loadKey);
+    }
+
+    public static JigsawStructureContainer toContainer(IrisJigsawStructure structure) {
+        return new JigsawStructureContainer(structure.getLoadKey());
+    }
+}