VoxelBlockMesh

package mygame.terrain;

import com.jme3.scene.Mesh;
import com.jme3.scene.VertexBuffer;
import com.jme3.util.BufferUtils;

public class VoxelBlockMesh extends Mesh {

  private static final short[] GEOMETRY_INDICES_DATA = {
    2, 1, 0, 3, 2, 0, // back
    6, 5, 4, 7, 6, 4, // right
    10, 9, 8, 11, 10, 8, // front
    14, 13, 12, 15, 14, 12, // left
    18, 17, 16, 19, 18, 16, // top
    22, 21, 20, 23, 22, 20 // bottom
  };

  private static final float[] GEOMETRY_VERTICES_DATA = {
    0, 0, -1, 1, 0, -1, 1, 1, -1, 0, 1, -1, // back
    1, 0, -1, 1, 0, 0, 1, 1, 0, 1, 1, -1, // right
    1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, // front
    0, 0, 0, 0, 0, -1, 0, 1, -1, 0, 1, 0, // left
    1, 1, -1, 1, 1, 0, 0, 1, 0, 0, 1, -1, // top
    0, 0, -1, 0, 0, 0, 1, 0, 0, 1, 0, -1 // bottom
  };

  private static final float[] GEOMETRY_NORMALS_DATA = {
    0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, // back
    1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, // right
    0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, // front
    -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, // left
    0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, // top
    0, -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0 // bottom
  };

  private static final float[] GEOMETRY_TEXTURE_DATA = {
    1, 0, 0, 0, 0, 1, 1, 1, // back
    1, 0, 0, 0, 0, 1, 1, 1, // right
    1, 0, 0, 0, 0, 1, 1, 1, // front
    1, 0, 0, 0, 0, 1, 1, 1, // left
    1, 0, 0, 0, 0, 1, 1, 1, // top
    1, 0, 0, 0, 0, 1, 1, 1 // bottom
  };

  public VoxelBlockMesh() {
  }

  public VoxelBlockMesh init() {
    setBuffer(VertexBuffer.Type.Position, 3, BufferUtils.createFloatBuffer(GEOMETRY_VERTICES_DATA));
    setBuffer(VertexBuffer.Type.Normal, 3, BufferUtils.createFloatBuffer(GEOMETRY_NORMALS_DATA));
    setBuffer(VertexBuffer.Type.TexCoord, 2, BufferUtils.createFloatBuffer(GEOMETRY_TEXTURE_DATA));
    setBuffer(VertexBuffer.Type.Index, 3, BufferUtils.createShortBuffer(GEOMETRY_INDICES_DATA));
    setStatic();
    updateBound();
    return this;
  }

}