base mod created

build/tmp/recompileMc/sources/net/minecraft/item/ItemKnowledgeBook.java

@@ -0,0 +1,74 @@
+package net.minecraft.item;
+
+import com.google.common.collect.Lists;
+import java.util.List;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.crafting.CraftingManager;
+import net.minecraft.item.crafting.IRecipe;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.stats.StatList;
+import net.minecraft.util.ActionResult;
+import net.minecraft.util.EnumActionResult;
+import net.minecraft.util.EnumHand;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.World;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public class ItemKnowledgeBook extends Item
+{
+    private static final Logger LOGGER = LogManager.getLogger();
+
+    public ItemKnowledgeBook()
+    {
+        this.setMaxStackSize(1);
+    }
+
+    /**
+     * Called when the equipped item is right clicked.
+     */
+    public ActionResult<ItemStack> onItemRightClick(World worldIn, EntityPlayer playerIn, EnumHand handIn)
+    {
+        ItemStack itemstack = playerIn.getHeldItem(handIn);
+        NBTTagCompound nbttagcompound = itemstack.getTagCompound();
+
+        if (!playerIn.capabilities.isCreativeMode)
+        {
+            playerIn.setHeldItem(handIn, ItemStack.EMPTY);
+        }
+
+        if (nbttagcompound != null && nbttagcompound.hasKey("Recipes", 9))
+        {
+            if (!worldIn.isRemote)
+            {
+                NBTTagList nbttaglist = nbttagcompound.getTagList("Recipes", 8);
+                List<IRecipe> list = Lists.<IRecipe>newArrayList();
+
+                for (int i = 0; i < nbttaglist.tagCount(); ++i)
+                {
+                    String s = nbttaglist.getStringTagAt(i);
+                    IRecipe irecipe = CraftingManager.getRecipe(new ResourceLocation(s));
+
+                    if (irecipe == null)
+                    {
+                        LOGGER.error("Invalid recipe: " + s);
+                        return new ActionResult<ItemStack>(EnumActionResult.FAIL, itemstack);
+                    }
+
+                    list.add(irecipe);
+                }
+
+                playerIn.unlockRecipes(list);
+                playerIn.addStat(StatList.getObjectUseStats(this));
+            }
+
+            return new ActionResult<ItemStack>(EnumActionResult.SUCCESS, itemstack);
+        }
+        else
+        {
+            LOGGER.error("Tag not valid: " + nbttagcompound);
+            return new ActionResult<ItemStack>(EnumActionResult.FAIL, itemstack);
+        }
+    }
+}