Data palettes

src/main/java/com/volmit/iris/gen/v2/scaffold/data/DataPalette.java

@@ -0,0 +1,71 @@
+package com.volmit.iris.gen.v2.scaffold.data;
+
+import com.volmit.iris.util.KList;
+
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+public class DataPalette<T> {
+    private final KList<T> palette;
+
+    public DataPalette()
+    {
+        this(new KList<>(16));
+    }
+
+    public DataPalette(KList<T> palette)
+    {
+        this.palette = palette;
+    }
+
+    public KList<T> getPalette()
+    {
+        return palette;
+    }
+
+    public int getIndex(T t)
+    {
+        int v = 0;
+
+       synchronized (palette)
+       {
+           v = palette.indexOf(t);
+
+           if(v == -1)
+           {
+               v = palette.size();
+               palette.add(t);
+           }
+       }
+
+        return v;
+    }
+
+    public void write(IOAdapter<T> adapter, DataOutputStream dos) throws IOException
+    {
+        synchronized (palette)
+        {
+            dos.writeShort(getPalette().size() + Short.MIN_VALUE);
+
+            for(int i = 0; i < palette.size(); i++)
+            {
+                adapter.write(palette.get(i), dos);
+            }
+        }
+    }
+
+    public static <T> DataPalette<T> getPalette(IOAdapter<T> adapter, DataInputStream din) throws IOException
+    {
+        KList<T> palette = new KList<>();
+        int s = din.readShort() - Short.MIN_VALUE;
+
+        for(int i = 0; i < s; i++)
+        {
+            palette.add(adapter.read(din));
+        }
+
+        return new DataPalette<>(palette);
+    }
+}

src/main/java/com/volmit/iris/gen/v2/scaffold/data/IOAdapter.java

@@ -0,0 +1,13 @@
+package com.volmit.iris.gen.v2.scaffold.data;
+
+import com.volmit.iris.gen.v2.scaffold.hunk.Hunk;
+import com.volmit.iris.util.Function3;
+
+import java.io.*;
+
+public interface IOAdapter<T>
+{
+    public void write(T t, DataOutputStream dos) throws IOException;
+
+    public T read(DataInputStream din) throws IOException;
+}