add new interface for Tile containers which actually keep the array of Tile objects themselves

src/com/blarg/gdx/tilemap3d/TileChunk.java

@@ -5,7 +5,7 @@ import com.badlogic.gdx.math.Vector3;
 import com.badlogic.gdx.math.collision.BoundingBox;
 import com.badlogic.gdx.utils.Disposable;
 
-public class TileChunk extends TileContainer implements Disposable {
+public class TileChunk extends TileContainer implements TileRawDataContainer, Disposable {
 	final int x;
 	final int y;
 	final int z;
@@ -23,6 +23,7 @@ public class TileChunk extends TileContainer implements Disposable {
 	public TileChunkMesh alphaMesh;
 	public final TileMap tileMap;
 
+	@Override
 	public Tile[] getData() {
 		return data;
 	}

src/com/blarg/gdx/tilemap3d/TileRawDataContainer.java

@@ -0,0 +1,12 @@
+package com.blarg.gdx.tilemap3d;
+
+public interface TileRawDataContainer {
+	Tile[] getData();
+
+	int getWidth();
+	int getHeight();
+	int getDepth();
+
+	Tile get(int x, int y, int z);
+	Tile getSafe(int x, int y, int z);
+}

src/com/blarg/gdx/tilemap3d/prefabs/TilePrefab.java

@@ -5,8 +5,9 @@ import com.badlogic.gdx.math.collision.BoundingBox;
 import com.blarg.gdx.Bitfield;
 import com.blarg.gdx.tilemap3d.Tile;
 import com.blarg.gdx.tilemap3d.TileContainer;
+import com.blarg.gdx.tilemap3d.TileRawDataContainer;
 
-public class TilePrefab extends TileContainer {
+public class TilePrefab extends TileContainer implements TileRawDataContainer {
 	public enum Rotation {
 		ROT0(0),
 		ROT90(90),
@@ -43,6 +44,11 @@ public class TilePrefab extends TileContainer {
 	final BoundingBox rotationBounds = new BoundingBox();
 	final BoundingBox tmpRotationBounds = new BoundingBox();
 
+	@Override
+	public Tile[] getData() {
+		return new Tile[0];
+	}
+
 	@Override
 	public int getWidth() {
 		return width;