Added basic entity handling with copy and paste.

Paintings do not currently respawn properly, entity pastes cannot be undone yet, and schematics do not yet store entities
@celticminstrel needs to fix painting spawning

src/main/java/com/sk89q/worldedit/spout/SpoutEntity.java

@@ -0,0 +1,64 @@
+/*
+ * WorldEdit
+ * Copyright (C) 2012 sk89q <http://www.sk89q.com> and contributors
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.spout;
+
+import com.sk89q.worldedit.LocalEntity;
+import com.sk89q.worldedit.Location;
+import org.spout.api.entity.Controller;
+import org.spout.api.entity.Entity;
+import org.spout.api.entity.type.ControllerType;
+import org.spout.api.geo.World;
+import org.spout.api.geo.discrete.Point;
+
+/**
+ * @author zml2008
+ */
+public class SpoutEntity extends LocalEntity {
+    private final ControllerType type;
+    private final int entityId;
+
+    public SpoutEntity(Location position, int id, Controller controller) {
+        super(position);
+        type = controller.getType();
+        this.entityId = id;
+    }
+
+    public int getEntityId() {
+        return entityId;
+    }
+
+    @Override
+    public boolean spawn(Location loc) {
+        World world = ((SpoutWorld) loc.getWorld()).getWorld();
+        Point pos = SpoutUtil.toPoint(world, loc.getPosition());
+        Controller controller = type.createController();
+        if (controller == null) {
+            return false;
+        }
+        Entity e = world.createAndSpawnEntity(pos, controller);
+
+        if (e != null) {
+            e.setPitch(loc.getPitch());
+            e.setYaw(loc.getYaw());
+            // TODO: Copy datatable info
+            return true;
+        }
+        return false;
+    }
+}

src/main/java/com/sk89q/worldedit/spout/SpoutUtil.java

@@ -24,9 +24,11 @@ package com.sk89q.worldedit.spout;
 import com.sk89q.worldedit.BlockVector;
 import com.sk89q.worldedit.BlockWorldVector;
 import com.sk89q.worldedit.LocalWorld;
+import com.sk89q.worldedit.Location;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.WorldVector;
 import org.spout.api.Game;
+import org.spout.api.entity.Entity;
 import org.spout.api.geo.World;
 import org.spout.api.geo.cuboid.Block;
 import org.spout.api.geo.discrete.Point;
@@ -105,4 +107,8 @@ public class SpoutUtil {
     public static World toWorld(WorldVector pt) {
         return ((SpoutWorld) pt.getWorld()).getWorld();
     }
+
+    public static Location toLocation(Entity ent) {
+        return new Location(getLocalWorld(ent.getWorld()), toVector(ent.getPosition()), ent.getYaw(), ent.getPitch());
+    }
 }

src/main/java/com/sk89q/worldedit/spout/SpoutWorld.java

@@ -25,6 +25,7 @@ import com.sk89q.worldedit.BiomeType;
 import com.sk89q.worldedit.BlockVector2D;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.EntityType;
+import com.sk89q.worldedit.LocalEntity;
 import com.sk89q.worldedit.LocalWorld;
 import com.sk89q.worldedit.MaxChangedBlocksException;
 import com.sk89q.worldedit.Vector;
@@ -49,6 +50,9 @@ import org.spout.vanilla.controller.object.projectile.Arrow;
 import org.spout.vanilla.controller.object.vehicle.Boat;
 import org.spout.vanilla.controller.object.vehicle.Minecart;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class SpoutWorld extends LocalWorld {
     private World world;
 
@@ -732,4 +736,35 @@ public class SpoutWorld extends LocalWorld {
         */
         return false;
     }
+
+    @Override
+    public SpoutEntity[] getEntities(Region region) {
+        List<SpoutEntity> entities = new ArrayList<SpoutEntity>();
+        for (Vector pt : region.getChunkCubes()) {
+            Chunk chunk = world.getChunk(pt.getBlockX(), pt.getBlockY(), pt.getBlockZ(), false);
+            if (chunk == null) {
+                continue;
+            }
+            for (Entity ent : chunk.getEntities()) {
+                if (region.contains(SpoutUtil.toVector(ent.getPosition()))) {
+                    entities.add(new SpoutEntity(SpoutUtil.toLocation(ent), ent.getId(), ent.getController()));
+                }
+            }
+        }
+        return entities.toArray(new SpoutEntity[entities.size()]);
+    }
+
+    @Override
+    public int killEntities(LocalEntity[] entities) {
+        int amount = 0;
+        for (LocalEntity weEnt : entities) {
+            SpoutEntity entity = (SpoutEntity) weEnt;
+            Entity spoutEntity = world.getEntity(entity.getEntityId());
+            if (spoutEntity != null) {
+                spoutEntity.kill();
+                ++amount;
+            }
+        }
+        return amount;
+    }
 }