Add Voxel class

Got to merge that math branch…

src/main/java/org/spongepowered/api/event/block/BlockEvent.java

@@ -31,7 +31,7 @@
  * Abstract class for map block events
  */
 public abstract class BlockEvent extends SpongeEvent {
-
+    // TODO: use voxel instead to provide the location and block at once?
     public final Block block;
 
     /**

src/main/java/org/spongepowered/api/world/Chunk.java

@@ -58,4 +58,15 @@ public interface Chunk {
      * @return The block
      */
     Block getBlock(int x, int y, int z);
+
+    /**
+     * Gets the {@link org.spongepowered.api.world.Voxel} at the block coordinate x/y/z.
+     *
+     * @param x X block coordinate
+     * @param y Y block coordinate
+     * @param z Z block coordinate
+     * @throws IllegalArgumentException If coordinates given are outside the chunk's bounds
+     * @return The voxel
+     */
+    Voxel getVoxel(int x, int y, int z);
 }

src/main/java/org/spongepowered/api/world/Voxel.java

@@ -0,0 +1,52 @@
+/**
+ * This file is part of SpongeAPI, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2014 SpongePowered <http://spongepowered.org/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.spongepowered.api.world;
+
+import org.spongepowered.api.block.Block;
+
+/**
+ * Represents the smallest unit of the world map. This unit
+ * has a position with integer coordinates and a block reference
+ * which defines it's behaviour and attributes. Unlike a block,
+ * this object has a position attribute, and does not define any logic
+ * by itself.
+ */
+public interface Voxel {
+
+    /**
+     * Gets the voxel's position in the world map.
+     *
+     * @return position The voxel's position
+     */
+    // TODO: uncomment this once the math branch is merged
+    //Vector3i getPosition();
+
+    /**
+     * Gets a reference to the block object that
+     * defines the voxel's logic.
+     *
+     * @return block The block defining the voxel
+     */
+    Block getBlock();
+}

src/main/java/org/spongepowered/api/world/World.java

@@ -75,4 +75,13 @@ public interface World {
      * @return The block
      */
     Block getBlock(int x, int y, int z);
+
+    /**
+     * Gets a specific {@link org.spongepowered.api.world.Voxel} by its x/y/z block coordinate.
+     * @param x X block coordinate
+     * @param y Y block coordinate
+     * @param z Z block coordinate
+     * @return The voxel
+     */
+    Voxel getVoxel(int x, int y, int z);
 }