Mantle & Debugging

src/main/java/com/volmit/iris/Iris.java

@@ -524,7 +524,41 @@ public class Iris extends VolmitPlugin implements Listener {
             return;
         }
 
-        msg(C.LIGHT_PURPLE + string);
+        try
+        {
+            throw new RuntimeException();
+        }
+
+        catch(Throwable e)
+        {
+            try
+            {
+                String[] cc = e.getStackTrace()[1].getClassName().split("\\Q.\\E");
+
+                if(cc.length > 5)
+                {
+                    debug(cc[3] + "/" + cc[4] + "/" + cc[cc.length-1], e.getStackTrace()[1].getLineNumber(), string);
+                }
+
+                else
+                {
+                    debug(cc[3] + "/" + cc[4], e.getStackTrace()[1].getLineNumber(), string);
+                }
+            }
+
+            catch(Throwable ex)
+            {
+                debug("Origin", -1, string);
+            }
+        }
+    }
+
+    public static void debug(String category, int line, String string) {
+        if (!IrisSettings.get().getGeneral().isDebug()) {
+            return;
+        }
+
+        msg("<gradient:#095fe0:#a848db>" + category + " <#bf3b76>" + line + "<reset> " +  C.LIGHT_PURPLE + string.replaceAll("\\Q<\\E", "[").replaceAll("\\Q>\\E", "]"));
     }
 
     public static void verbose(String string) {

src/main/java/com/volmit/iris/engine/IrisEngine.java

@@ -228,24 +228,10 @@ public class IrisEngine extends BlockPopulator implements Engine {
                 }
                 case ISLANDS -> {
                     getFramework().getTerrainActuator().actuate(x, z, vblocks, multicore);
-
                 }
             }
 
             getMetrics().getTotal().put(p.getMilliseconds());
-
-            if (IrisSettings.get().getGeneral().isDebug()) {
-                KList<String> v = new KList<>();
-                KMap<String, Double> g = getMetrics().pull();
-
-                for (String i : g.sortKNumber()) {
-                    if (g.get(i) != null) {
-                        v.add(C.RESET + "" + C.LIGHT_PURPLE + i + ": " + C.UNDERLINE + C.BLUE + Form.duration(g.get(i), 0) + C.RESET + C.GRAY + "");
-                    }
-                }
-
-                Iris.debug(v.toString(", "));
-            }
         } catch (Throwable e) {
             Iris.reportError(e);
             fail("Failed to generate " + x + ", " + z, e);
@@ -258,7 +244,9 @@ public class IrisEngine extends BlockPopulator implements Engine {
         f.getParentFile().mkdirs();
         try {
             IO.writeAll(f, new Gson().toJson(getEngineData()));
+            Iris.debug("Saved Engine Data");
         } catch (IOException e) {
+            Iris.error("Failed to save Engine Data");
             e.printStackTrace();
         }
     }

src/main/java/com/volmit/iris/engine/parallax/ParallaxWorld.java

@@ -114,6 +114,7 @@ public class ParallaxWorld implements ParallaxAccess {
 
             if (lr != null) {
                 v += lr.unload();
+                Iris.debug("Unloaded Parallax Region " + C.RED + x + " " + z);
             }
         }
 
@@ -128,6 +129,7 @@ public class ParallaxWorld implements ParallaxAccess {
 
         ParallaxRegion v = new ParallaxRegion(burst, height, folder, x, z);
         loadedRegions.put(key(x, z), v);
+        Iris.debug("Loaded Parallax Region " + C.RED + x + " " + z);
 
         return v;
     }

src/main/java/com/volmit/iris/util/hunk/Hunk.java

@@ -61,6 +61,14 @@ public interface Hunk<T> {
         return new HunkView<T>(src);
     }
 
+    default boolean isMapped() {
+        return false;
+    }
+
+    default int getEntryCount() {
+        return getWidth() * getHeight() * getDepth();
+    }
+
     static <A, B> Hunk<B> convertedReadView(Hunk<A> src, Function<A, B> reader) {
         return new FunctionalHunkView<A, B>(src, reader, null);
     }
@@ -1059,6 +1067,45 @@ public interface Hunk<T> {
         setRaw(x, y, z, t);
     }
 
+    /**
+     * Create a hunk that is optimized for specific uses
+     * @param w width
+     * @param h height
+     * @param d depth
+     * @param type the class type
+     * @param packed if the hunk is generally more than 50% full (non-null nodes)
+     * @param concurrent if this hunk must be thread safe
+     * @param <T> the type
+     * @return the hunk
+     */
+    static <T> Hunk<T> newHunk(int w, int h, int d, Class<T> type, boolean packed, boolean concurrent)
+    {
+        if(type.equals(Double.class))
+        {
+            return concurrent ?
+                    packed ? (Hunk<T>) newAtomicDoubleHunk(w,h,d) : newMappedHunk(w,h,d)
+                    : packed ? newArrayHunk(w,h,d) : newMappedHunkSynced(w,h,d);
+        }
+
+        if(type.equals(Integer.class))
+        {
+            return concurrent ?
+                    packed ? (Hunk<T>) newAtomicIntegerHunk(w,h,d) : newMappedHunk(w,h,d)
+                    : packed ? newArrayHunk(w,h,d) : newMappedHunkSynced(w,h,d);
+        }
+
+        if(type.equals(Long.class))
+        {
+            return concurrent ?
+                    packed ? (Hunk<T>) newAtomicLongHunk(w,h,d) : newMappedHunk(w,h,d)
+                    : packed ? newArrayHunk(w,h,d) : newMappedHunkSynced(w,h,d);
+        }
+
+        return concurrent ?
+                packed ? newAtomicHunk(w,h,d) : newMappedHunk(w,h,d)
+                : packed ? newArrayHunk(w,h,d) : newMappedHunkSynced(w,h,d);
+    }
+
     default void setIfExists(int x, int y, int z, T t) {
         if (x < 0 || x >= getWidth() || y < 0 || y >= getHeight() || z < 0 || z >= getDepth()) {
             return;

src/main/java/com/volmit/iris/util/hunk/HunkFactory.java

@@ -0,0 +1,24 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.hunk;
+
+@FunctionalInterface
+public interface HunkFactory {
+    <T> Hunk<T> create(int w, int h, int d);
+}

src/main/java/com/volmit/iris/util/hunk/storage/ArrayHunk.java

@@ -20,6 +20,7 @@ package com.volmit.iris.util.hunk.storage;
 
 import com.volmit.iris.engine.data.cache.Cache;
 import com.volmit.iris.util.hunk.Hunk;
+import com.volmit.iris.util.hunk.HunkFactory;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 

src/main/java/com/volmit/iris/util/hunk/storage/MappedHunk.java

@@ -43,6 +43,10 @@ public class MappedHunk<T> extends StorageHunk<T> implements Hunk<T> {
         return data.size();
     }
 
+    public boolean isMapped() {
+        return true;
+    }
+
     public boolean isEmpty()
     {
         return data.isEmpty();

src/main/java/com/volmit/iris/util/mantle/Mantle.java

@@ -0,0 +1,107 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.engine.data.cache.Cache;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.documentation.RegionCoordinates;
+import com.volmit.iris.util.format.C;
+
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.util.Map;
+
+public class Mantle
+{
+    private final File dataFolder;
+    private final int worldHeight;
+    private final Map<Long, MantleRegion> loadedRegions;
+
+    public Mantle(File dataFolder, int worldHeight)
+    {
+        this.dataFolder = dataFolder;
+        this.worldHeight = worldHeight;
+        dataFolder.mkdirs();
+        loadedRegions = new KMap<>();
+    }
+
+    @RegionCoordinates
+    public MantleRegion get(int x, int z)
+    {
+        Long k = key(x, z);
+        MantleRegion region = loadedRegions.get(k);
+
+        if(region != null)
+        {
+            return region;
+        }
+
+        synchronized (loadedRegions)
+        {
+            // Ensure we are the first loading thread
+            region = loadedRegions.get(k);
+
+            if(region != null)
+            {
+                return region;
+            }
+
+            File file = fileForRegion(x, z);
+
+            if(file.exists())
+            {
+                try
+                {
+                    FileInputStream fin = new FileInputStream(file);
+                    DataInputStream din = new DataInputStream(fin);
+                    region = new MantleRegion(worldHeight, din);
+                    din.close();
+                    Iris.debug("Loaded Mantle Region " + C.RED + x + " " + z + C.DARK_AQUA + " " + file.getName());
+                }
+
+                catch(Throwable e)
+                {
+                    Iris.error("Failed to read Mantle Region " + file.getAbsolutePath() + " creating a new chunk instead.");
+                    Iris.reportError(e);
+                    e.printStackTrace();
+                    region = null;
+                }
+            }
+
+            if(region != null)
+            {
+                return region;
+            }
+
+            Iris.debug("Created new Mantle Region " + C.RED + x + " " + z);
+            return new MantleRegion(worldHeight);
+        }
+    }
+
+    private File fileForRegion(int x, int z) {
+        return new File("m." + x + "." + z + ".mtl");
+    }
+
+    public Long key(int x, int z)
+    {
+        return Cache.key(x, z);
+    }
+}

src/main/java/com/volmit/iris/util/mantle/MantleChunk.java

@@ -0,0 +1,112 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle;
+
+import com.volmit.iris.engine.data.chunk.MCATerrainChunk;
+import com.volmit.iris.util.data.Varint;
+import com.volmit.iris.util.documentation.ChunkCoordinates;
+import com.volmit.iris.util.nbt.mca.Section;
+import lombok.Data;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicReferenceArray;
+
+public class MantleChunk {
+    private final AtomicReferenceArray<MantleMatter> sections;
+
+    @ChunkCoordinates
+    public MantleChunk(int sectionHeight)
+    {
+        sections = new AtomicReferenceArray<>(sectionHeight);
+    }
+
+    public MantleChunk(int sectionHeight, DataInputStream din) throws IOException, ClassNotFoundException {
+        this(sectionHeight);
+        int s = Varint.readUnsignedVarInt(din);
+
+        for(int i = 0; i < s; i++)
+        {
+            if(din.readBoolean())
+            {
+                sections.set(i, MantleMatter.read(din));
+            }
+        }
+    }
+
+    @ChunkCoordinates
+    public boolean exists(int section)
+    {
+        return get(section) != null;
+    }
+
+    @ChunkCoordinates
+    public MantleMatter get(int section)
+    {
+        return sections.get(section);
+    }
+
+    public void clear()
+    {
+        for(int i = 0; i < sections.length(); i++)
+        {
+            delete(i);
+        }
+    }
+
+    @ChunkCoordinates
+    public void delete(int section)
+    {
+        sections.set(section, null);
+    }
+
+    @ChunkCoordinates
+    public MantleMatter getOrCreate(int section)
+    {
+        MantleMatter matter = get(section);
+
+        if(matter == null)
+        {
+            matter = new MantleMatter(16, 16, 16);
+            sections.set(section, matter);
+        }
+
+        return matter;
+    }
+
+    public void write(DataOutputStream dos) throws IOException {
+        Varint.writeUnsignedVarInt(sections.length(), dos);
+
+        for(int i = 0; i < sections.length(); i++)
+        {
+            if(exists(i))
+            {
+                dos.writeBoolean(true);
+                MantleMatter matter = get(i);
+                matter.writeDos(dos);
+            }
+
+            else
+            {
+                dos.writeBoolean(false);
+            }
+        }
+    }
+}

src/main/java/com/volmit/iris/util/mantle/MantleMatter.java

@@ -0,0 +1,69 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.matter.IrisMatter;
+import com.volmit.iris.util.matter.Matter;
+import com.volmit.iris.util.matter.MatterSlice;
+import com.volmit.iris.util.matter.Sliced;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+public class MantleMatter extends IrisMatter
+{
+    protected static final KMap<Class<?>, MatterSlice<?>> slicers = buildSlicers();
+
+    public MantleMatter(int width, int height, int depth) {
+        super(width, height, depth);
+    }
+
+    public static MantleMatter read(DataInputStream din) throws IOException, ClassNotFoundException {
+        return (MantleMatter) Matter.read(din, (b) -> new MantleMatter(b.getX(), b.getY(), b.getZ()));
+    }
+
+    @Override
+    public <T> MatterSlice<T> createSlice(Class<T> type, Matter m) {
+        MatterSlice<?> slice = slicers.get(type);
+
+        if (slice == null) {
+            return null;
+        }
+
+        try {
+            return slice.getClass().getConstructor(int.class, int.class, int.class).newInstance(getWidth(), getHeight(), getDepth());
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+    private static KMap<Class<?>, MatterSlice<?>> buildSlicers() {
+        KMap<Class<?>, MatterSlice<?>> c = new KMap<>();
+        for (Object i : Iris.initialize("com.volmit.iris.util.mantle.slices", Sliced.class)) {
+            MatterSlice<?> s = (MatterSlice<?>) i;
+            c.put(s.getType(), s);
+        }
+
+        return c;
+    }
+}

src/main/java/com/volmit/iris/util/mantle/MantleRegion.java

@@ -0,0 +1,107 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle;
+
+import com.volmit.iris.util.documentation.ChunkCoordinates;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicReferenceArray;
+
+public class MantleRegion {
+    private final int sectionHeight;
+    private final AtomicReferenceArray<MantleChunk> chunks;
+
+    public MantleRegion(int worldHeight)
+    {
+        this.sectionHeight = worldHeight >> 4;
+        this.chunks = new AtomicReferenceArray<>(1024);
+    }
+
+    public MantleRegion(int worldHeight, DataInputStream din) throws IOException, ClassNotFoundException {
+        this(worldHeight);
+
+        for(int i = 0; i < chunks.length(); i++)
+        {
+            if(din.readBoolean())
+            {
+                chunks.set(i, new MantleChunk(sectionHeight, din));
+            }
+        }
+    }
+
+    @ChunkCoordinates
+    public boolean exists(int x, int z)
+    {
+        return get(x, z) != null;
+    }
+
+    @ChunkCoordinates
+    public MantleChunk get(int x, int z)
+    {
+        return chunks.get(index(x, z));
+    }
+
+    public void clear()
+    {
+        for(int i = 0; i < chunks.length(); i++)
+        {
+            chunks.set(i, null);
+        }
+    }
+
+    @ChunkCoordinates
+    public void delete(int x, int z)
+    {
+        chunks.set(index(x, z), null);
+    }
+
+    @ChunkCoordinates
+    public MantleChunk getOrCreate(int x, int z)
+    {
+        MantleChunk chunk = get(x, z);
+
+        if(chunk == null)
+        {
+            chunk = new MantleChunk(sectionHeight);
+            chunks.set(index(x, z), chunk);
+        }
+
+        return chunk;
+    }
+
+    @ChunkCoordinates
+    private int index(int x, int z) {
+        return (x & 0x1F) + (z & 0x1F) * 32;
+    }
+
+    public void write(DataOutputStream dos) throws IOException {
+        for(int i = 0; i < chunks.length(); i++)
+        {
+            MantleChunk chunk = chunks.get(i);
+            dos.writeBoolean(chunk != null);
+
+            if(chunk != null)
+            {
+                chunk.write(dos);
+            }
+        }
+    }
+}

src/main/java/com/volmit/iris/util/mantle/slices/MantleBlockMatter.java

@@ -0,0 +1,59 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle.slices;
+
+import com.volmit.iris.engine.parallax.ParallaxAccess;
+import com.volmit.iris.engine.parallax.ParallaxWorld;
+import com.volmit.iris.util.data.B;
+import com.volmit.iris.util.matter.Sliced;
+import com.volmit.iris.util.matter.slices.RawMatter;
+import org.bukkit.World;
+import org.bukkit.block.data.BlockData;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+@Sliced
+public class MantleBlockMatter extends RawMatter<BlockData> {
+    public MantleBlockMatter() {
+        this(1, 1, 1);
+    }
+
+    public MantleBlockMatter(int width, int height, int depth) {
+        super(width, height, depth, BlockData.class);
+        registerWriter(World.class, ((w, d, x, y, z) -> w.getBlockAt(x, y, z).setBlockData(d)));
+        registerWriter(ParallaxWorld.class, (w, d, x, y, z) -> w.setBlock(x, y, z, d));
+        registerReader(World.class, (w, x, y, z) -> {
+            BlockData d = w.getBlockAt(x, y, z).getBlockData();
+            return d.getMaterial().isAir() ? null : d;
+        });
+        registerReader(ParallaxWorld.class, ParallaxAccess::getBlock);
+    }
+
+    @Override
+    public void writeNode(BlockData b, DataOutputStream dos) throws IOException {
+        dos.writeUTF(b.getAsString(true));
+    }
+
+    @Override
+    public BlockData readNode(DataInputStream din) throws IOException {
+        return B.get(din.readUTF());
+    }
+}

src/main/java/com/volmit/iris/util/mantle/slices/RawMantleMatter.java

@@ -0,0 +1,70 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.util.mantle.slices;
+
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.hunk.storage.ArrayHunk;
+import com.volmit.iris.util.hunk.storage.AtomicHunk;
+import com.volmit.iris.util.hunk.storage.MappedHunk;
+import com.volmit.iris.util.matter.MatterReader;
+import com.volmit.iris.util.matter.MatterSlice;
+import com.volmit.iris.util.matter.MatterWriter;
+import lombok.Getter;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+public abstract class RawMantleMatter<T> extends AtomicHunk<T> implements MatterSlice<T> {
+    @Getter
+    private final Class<T> type;
+    protected final KMap<Class<?>, MatterWriter<?, T>> writers;
+    protected final KMap<Class<?>, MatterReader<?, T>> readers;
+
+    public RawMantleMatter(int width, int height, int depth, Class<T> type) {
+        super(width, height, depth);
+        writers = new KMap<>();
+        readers = new KMap<>();
+        this.type = type;
+    }
+
+    protected <W> void registerWriter(Class<W> mediumType, MatterWriter<W, T> injector) {
+        writers.put(mediumType, injector);
+    }
+
+    protected <W> void registerReader(Class<W> mediumType, MatterReader<W, T> injector) {
+        readers.put(mediumType, injector);
+    }
+
+    @Override
+    public <W> MatterWriter<W, T> writeInto(Class<W> mediumType) {
+        return (MatterWriter<W, T>) writers.get(mediumType);
+    }
+
+    @Override
+    public <W> MatterReader<W, T> readFrom(Class<W> mediumType) {
+        return (MatterReader<W, T>) readers.get(mediumType);
+    }
+
+    @Override
+    public abstract void writeNode(T b, DataOutputStream dos) throws IOException;
+
+    @Override
+    public abstract T readNode(DataInputStream din) throws IOException;
+}

src/main/java/com/volmit/iris/util/matter/Matter.java

@@ -24,6 +24,7 @@ import com.volmit.iris.util.data.Varint;
 import com.volmit.iris.util.hunk.Hunk;
 import com.volmit.iris.util.math.BlockPosition;
 
+import javax.xml.crypto.Data;
 import java.io.*;
 import java.util.Map;
 import java.util.Set;
@@ -87,7 +88,7 @@ public interface Matter {
     }
 
     /**
-     * Create a slice from the given type
+     * Create a slice from the given type (full is false)
      *
      * @param type   the type class
      * @param matter the matter this slice will go into (size provider)
@@ -248,7 +249,7 @@ public interface Matter {
         Set<Class<?>> drop = null;
 
         for (Class<?> i : getSliceTypes()) {
-            if (getSlice(i).getCount() == 0) {
+            if (getSlice(i).getEntryCount() == 0) {
                 if (drop == null) {
                     drop = new KSet<>();
                 }
@@ -272,8 +273,11 @@ public interface Matter {
      * @throws IOException shit happens yo
      */
     default void write(OutputStream out) throws IOException {
+        writeDos(new DataOutputStream(out));
+    }
+
+    default void writeDos(DataOutputStream dos) throws IOException {
         trimSlices();
-        DataOutputStream dos = new DataOutputStream(out);
         Varint.writeUnsignedVarInt(getWidth(), dos);
         Varint.writeUnsignedVarInt(getHeight(), dos);
         Varint.writeUnsignedVarInt(getDepth(), dos);
@@ -283,8 +287,6 @@ public interface Matter {
         for (Class<?> i : getSliceTypes()) {
             getSlice(i).write(dos);
         }
-
-        dos.flush();
     }
 
     static Matter read(File f) throws IOException, ClassNotFoundException {
@@ -339,7 +341,7 @@ public interface Matter {
 
         for(MatterSlice<?> i : getSliceMap().values())
         {
-            m+= i.getCount();
+            m+= i.getEntryCount();
         }
 
         return m;

src/main/java/com/volmit/iris/util/matter/MatterSlice.java

@@ -99,14 +99,6 @@ public interface MatterSlice<T> extends Hunk<T> {
         return true;
     }
 
-    // BlockMatter<T>
-    //   RawMatter<T>      ex MappedHunk<T>
-    //     IMatterSlice<T> ex Hunk<T>
-
-    default int getCount() {
-        return ((MappedHunk<?>) this).getEntryCount();
-    }
-
     default boolean canWrite(Class<?> mediumType) {
         return writeInto(mediumType) != null;
     }
@@ -122,24 +114,41 @@ public interface MatterSlice<T> extends Hunk<T> {
         MatterPalette<T> palette = new MatterPalette<T>(this);
         iterateSync((x, y, z, b) -> palette.assign(b));
         palette.writePalette(dos);
-        Varint.writeUnsignedVarInt(getCount(), dos);
-        iterateSyncIO((x, y, z, b) -> {
-            Varint.writeUnsignedVarInt(Cache.to1D(x, y, z, w, h), dos);
-            palette.writeNode(b, dos);
-        });
+        dos.writeBoolean(isMapped());
+
+        if(isMapped())
+        {
+            Varint.writeUnsignedVarInt(getEntryCount(), dos);
+            iterateSyncIO((x, y, z, b) -> {
+                Varint.writeUnsignedVarInt(Cache.to1D(x, y, z, w, h), dos);
+                palette.writeNode(b, dos);
+            });
+        }
+
+        else
+        {
+            iterateSyncIO((x, y, z, b) -> palette.writeNode(b, dos));
+        }
     }
 
     default void read(DataInputStream din) throws IOException {
         int w = getWidth();
         int h = getHeight();
-
         MatterPalette<T> palette = new MatterPalette<T>(this, din);
-        int nodes = Varint.readUnsignedVarInt(din);
-        int[] pos;
+        if(din.readBoolean())
+        {
+            int nodes = Varint.readUnsignedVarInt(din);
+            int[] pos;
 
-        while (nodes-- > 0) {
-            pos = Cache.to3D(Varint.readUnsignedVarInt(din), w, h);
-            setRaw(pos[0], pos[1], pos[2], palette.readNode(din));
+            while (nodes-- > 0) {
+                pos = Cache.to3D(Varint.readUnsignedVarInt(din), w, h);
+                setRaw(pos[0], pos[1], pos[2], palette.readNode(din));
+            }
+        }
+
+        else
+        {
+            iterateSyncIO((x, y, z, b) -> setRaw(x, y, z, palette.readNode(din)));
         }
     }
 

src/main/java/com/volmit/iris/util/matter/slices/BlockMatter.java

@@ -38,12 +38,10 @@ public class BlockMatter extends RawMatter<BlockData> {
     public BlockMatter(int width, int height, int depth) {
         super(width, height, depth, BlockData.class);
         registerWriter(World.class, ((w, d, x, y, z) -> w.getBlockAt(x, y, z).setBlockData(d)));
-        registerWriter(ParallaxWorld.class, (w, d, x, y, z) -> w.setBlock(x, y, z, d));
         registerReader(World.class, (w, x, y, z) -> {
             BlockData d = w.getBlockAt(x, y, z).getBlockData();
             return d.getMaterial().isAir() ? null : d;
         });
-        registerReader(ParallaxWorld.class, ParallaxAccess::getBlock);
     }
 
     @Override