New hook to allow items to be on multiple creative tabs PR 176

patches/common/net/minecraft/src/CreativeTabs.java.patch

@@ -60,10 +60,27 @@
          return this.tabIndex < 6;
      }
  
-@@ -150,4 +174,26 @@
+@@ -144,10 +168,40 @@
+         {
+             Item var5 = var2[var4];
+ 
+-            if (var5 != null && var5.getCreativeTab() == this)
++            if (var5 == null)
+             {
+-                var5.getSubItems(var5.shiftedIndex, this, par1List);
++                continue;
              }
-         }
-     }
+-        }
++
++            for(CreativeTabs tab : var5.getCreativeTabs())
++            {
++                if (tab == this)
++                {
++                    var5.getSubItems(var5.shiftedIndex, this, par1List);
++                }
++            }
++        }
++    }
 +
 +    public int getTabPage()
 +    {
@@ -85,5 +102,5 @@
 +    public ItemStack getIconItemStack()
 +    {
 +        return new ItemStack(getTabIconItem());
-+    }
+     }
  }

patches/common/net/minecraft/src/Item.java.patch

@@ -37,7 +37,7 @@
          Vec3 var23 = var13.addVector((double)var18 * var21, (double)var17 * var21, (double)var20 * var21);
          return par1World.rayTraceBlocks_do_do(var13, var23, par3, !par3);
      }
-@@ -674,4 +686,240 @@
+@@ -674,4 +686,252 @@
      {
          StatList.initStats();
      }
@@ -276,5 +276,17 @@
 +    public Entity createEntity(World world, Entity location, ItemStack itemstack)
 +    {
 +        return null;
++    }
++
++    /**
++     * Gets a list of tabs that items belonging to this class can display on, 
++     * combined properly with getSubItems allows for a single item to span 
++     * many sub-items across many tabs.
++     * 
++     * @return A list of all tabs that this item could possibly be one.
++     */
++    public CreativeTabs[] getCreativeTabs()
++    {
++        return new CreativeTabs[]{ getCreativeTab() };
 +    }
  }