Drop contents of Alveary when it's broken (#102)

Co-authored-by: Martin Robertz <dream-master@gmx.net>

src/main/java/forestry/apiculture/InventoryBeeHousing.java

@@ -8,7 +8,10 @@
  ******************************************************************************/
 package forestry.apiculture;
 
+import net.minecraft.entity.item.EntityItem;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 import forestry.api.apiculture.BeeManager;
 import forestry.api.apiculture.EnumBeeType;
@@ -73,4 +76,27 @@ public class InventoryBeeHousing extends InventoryAdapterRestricted implements I
     public final boolean addProduct(ItemStack product, boolean all) {
         return InventoryUtil.tryAddStack(this, product, SLOT_PRODUCT_1, SLOT_PRODUCT_COUNT, all, true);
     }
+
+    public void dumpInventoryIntoWorld(World world, ChunkCoordinates coordinates) {
+        if (world.isRemote) {
+            return;
+        }
+        for (int i = 0; i < SLOT_PRODUCT_COUNT; i++) {
+            ItemStack stack = getStackInSlot(i);
+            if (stack == null) {
+                continue;
+            }
+            setInventorySlotContents(i, null);
+
+            EntityItem entityitem = new EntityItem(
+                    world,
+                    coordinates.posX + 0.5,
+                    coordinates.posY + 0.5,
+                    coordinates.posZ + 0.5,
+                    stack);
+            entityitem.delayBeforeCanPickup = 10;
+            world.spawnEntityInWorld(entityitem);
+        }
+
+    }
 }

src/main/java/forestry/apiculture/multiblock/AlvearyController.java

@@ -159,6 +159,8 @@ public class AlvearyController extends RectangularMultiblockControllerBase
                 activeComponents.remove(oldPart);
             }
         }
+
+        inventory.dumpInventoryIntoWorld(this.worldObj, oldPart.getCoordinates());
     }
 
     @Override