Drum of the Gathering gives the right product for modded cows

src/main/java/vazkii/botania/client/core/handler/LightningHandler.java

@@ -2,10 +2,10 @@
  * This class was created by <Vazkii/ChickenBones>. It's distributed as
  * part of the Botania Mod. Get the Source Code in github:
  * https://github.com/Vazkii/Botania
- * 
+ *
  * Botania is Open Source and distributed under the
  * Botania License: http://botaniamod.net/license.php
- * 
+ *
  * File Created @ [Feb 3, 2014, 9:05:38 PM (GMT)]
  */
 package vazkii.botania.client.core.handler;
@@ -67,14 +67,13 @@ public class LightningHandler {
 		profiler.endStartSection("lightning");
 
 		float frame = event.partialTicks;
-		Entity entity = Minecraft.getMinecraft().thePlayer;
 		TextureManager render = Minecraft.getMinecraft().renderEngine;
 
-		interpPosX = entity.lastTickPosX + (entity.posX - entity.lastTickPosX) * frame;
-		interpPosY = entity.lastTickPosY + (entity.posY - entity.lastTickPosY) * frame;
-		interpPosZ = entity.lastTickPosZ + (entity.posZ - entity.lastTickPosZ) * frame;
-
 		Entity viewEntity = Minecraft.getMinecraft().renderViewEntity;
+		interpPosX = viewEntity.lastTickPosX + (viewEntity.posX - viewEntity.lastTickPosX) * frame;
+		interpPosY = viewEntity.lastTickPosY + (viewEntity.posY - viewEntity.lastTickPosY) * frame;
+		interpPosZ = viewEntity.lastTickPosZ + (viewEntity.posZ - viewEntity.lastTickPosZ) * frame;
+
 		scratchView.set(viewEntity.posX, viewEntity.posY + viewEntity.getEyeHeight(), viewEntity.posZ);
 
 		GL11.glPushMatrix();
@@ -501,4 +500,4 @@ public class LightningHandler {
 			}
 		}
 	}
-}
+}

src/main/java/vazkii/botania/client/render/world/SkyblockSkyRenderer.java

@@ -87,8 +87,8 @@ public class SkyblockSkyRenderer extends IRenderHandler {
 		float f6;
 
 		float insideVoid = 0;
-		if(mc.thePlayer.posY <= -2)
-			insideVoid = (float) Math.min(1F, -(mc.thePlayer.posY + 2) / 30F);
+		if(viewEntity.posY <= -2)
+			insideVoid = (float) Math.min(1F, -(viewEntity.posY + 2) / 30F);
 		
 		f1 = Math.max(0F, f1 - insideVoid);
 		f2 = Math.max(0F, f2 - insideVoid);

src/main/java/vazkii/botania/common/block/mana/BlockForestDrum.java

@@ -22,13 +22,15 @@ import net.minecraft.entity.EntityLiving;
 import net.minecraft.entity.item.EntityItem;
 import net.minecraft.entity.passive.EntityCow;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.init.Items;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.AxisAlignedBB;
 import net.minecraft.util.IIcon;
 import net.minecraft.world.World;
+import net.minecraft.world.WorldServer;
 import net.minecraftforge.common.IShearable;
+import net.minecraftforge.common.util.FakePlayer;
+import net.minecraftforge.common.util.FakePlayerFactory;
 import vazkii.botania.api.internal.IManaBurst;
 import vazkii.botania.api.lexicon.ILexiconable;
 import vazkii.botania.api.lexicon.LexiconEntry;
@@ -121,22 +123,32 @@ public class BlockForestDrum extends BlockMod implements IManaTrigger, ILexicona
 			List<EntityLiving> shearables = new ArrayList<>();
 			ItemStack stack = new ItemStack(this, 1, 1);
 
+			FakePlayer milker = FakePlayerFactory.getMinecraft((WorldServer) world);
 			for(EntityLiving entity : entities) {
 				if(entity instanceof IShearable && ((IShearable) entity).isShearable(stack, world, (int) entity.posX, (int) entity.posY, (int) entity.posZ)) {
 					shearables.add(entity);
-				} else if(entity instanceof EntityCow) {
-					List<EntityItem> items = world.getEntitiesWithinAABB(EntityItem.class, AxisAlignedBB.getBoundingBox(entity.posX, entity.posY, entity.posZ, entity.posX + entity.width, entity.posY + entity.height, entity.posZ + entity.width));
+				} else if(entity instanceof EntityCow cow) {
+					List<EntityItem> items = world.getEntitiesWithinAABB(EntityItem.class, entity.boundingBox.copy().expand(0.5, 0.5, 0.5));
 					for(EntityItem item : items) {
 						ItemStack itemstack = item.getEntityItem();
-						if(itemstack != null && itemstack.getItem() == Items.bucket && !world.isRemote) {
+						if(itemstack != null && !cow.isBreedingItem(itemstack) && !world.isRemote) {
 							while(itemstack.stackSize > 0) {
-								EntityItem ent = entity.entityDropItem(new ItemStack(Items.milk_bucket), 1.0F);
+								ItemStack copy = itemstack.copy();
+								copy.stackSize = 1;
+								milker.inventory.mainInventory[0] = copy;
+								cow.interact(milker);
+                                if (milker.inventory.mainInventory[0] == null) {
+									itemstack.stackSize--;
+                                    break;
+                                } else if (milker.inventory.mainInventory[0].getItem() == itemstack.getItem()) {
+                                    break;
+                                }
+								EntityItem ent = entity.entityDropItem(milker.inventory.mainInventory[0], 1.0F);
 								ent.motionY += world.rand.nextFloat() * 0.05F;
 								ent.motionX += (world.rand.nextFloat() - world.rand.nextFloat()) * 0.1F;
 								ent.motionZ += (world.rand.nextFloat() - world.rand.nextFloat()) * 0.1F;
-								itemstack.stackSize--;
 							}
-							item.setDead();
+							if (itemstack.stackSize == 0) item.setDead();
 						}
 					}
 				}

src/main/java/vazkii/botania/common/block/subtile/generating/SubTileEntropinnyum.java

@@ -101,6 +101,7 @@ public class SubTileEntropinnyum extends SubTileGenerating {
             if (world.isRemote || mana != 0 || !(Math.abs(supertile.xCoord - posX) <= RANGE && Math.abs(supertile.yCoord - posY) <= RANGE && Math.abs(supertile.zCoord - posZ) <= RANGE)) {
                 return false;
             }
+			if (explosionSource == null) return false;
 
             explosionSource.setDead();
             mana += getMaxMana();

src/main/java/vazkii/botania/common/item/block/ItemBlockModSlab.java

@@ -21,14 +21,16 @@ import vazkii.botania.common.core.handler.ConfigHandler;
 import java.util.List;
 
 public class ItemBlockModSlab extends ItemSlab {
+	private final String unlocalizedName;
 
 	public ItemBlockModSlab(Block blockSlab) {
 		super(blockSlab, ((BlockModSlab)blockSlab).getSingleBlock(), ((BlockModSlab)blockSlab).getFullBlock(), false);
+		unlocalizedName = blockSlab.getUnlocalizedName().replace("tile.", "tile.botania:");
 	}
 
 	@Override
 	public String getUnlocalizedName(ItemStack stack) {
-		return field_150939_a.getUnlocalizedName().replaceAll("tile.", "tile.botania:");
+		return unlocalizedName;
 	}
 	@Override
 	public void addInformation(ItemStack stack, EntityPlayer player, List<String> infoList, boolean advanced) {