Fixed potential NPE in SlotCrafting, and added ItemStack sensitive version fo hasContainerItem. Closes #854

patches/minecraft/net/minecraft/inventory/SlotCrafting.java.patch

@@ -9,14 +9,17 @@
  
  public class SlotCrafting extends Slot
  {
-@@ -124,8 +126,14 @@
+@@ -122,10 +124,16 @@
+             {
+                 this.craftMatrix.decrStackSize(i, 1);
  
-                 if (itemstack1.getItem().hasContainerItem())
+-                if (itemstack1.getItem().hasContainerItem())
++                if (itemstack1.getItem().hasContainerItem(itemstack1))
                  {
 -                    ItemStack itemstack2 = new ItemStack(itemstack1.getItem().getContainerItem());
 +                    ItemStack itemstack2 = itemstack1.getItem().getContainerItem(itemstack1);
  
-+                    if (itemstack2.isItemStackDamageable() && itemstack2.getItemDamage() > itemstack2.getMaxDamage())
++                    if (itemstack2 != null && itemstack2.isItemStackDamageable() && itemstack2.getItemDamage() > itemstack2.getMaxDamage())
 +                    {
 +                        MinecraftForge.EVENT_BUS.post(new PlayerDestroyItemEvent(thePlayer, itemstack2));
 +                        continue;

patches/minecraft/net/minecraft/item/Item.java.patch

@@ -51,7 +51,15 @@
      public int getItemStackLimit()
      {
          return this.maxStackSize;
-@@ -660,6 +671,7 @@
+@@ -595,6 +606,7 @@
+     }
+ 
+     // JAVADOC METHOD $$ func_77634_r
++    @Deprecated // Use ItemStack sensitive version below.
+     public boolean hasContainerItem()
+     {
+         return this.containerItem != null;
+@@ -660,6 +672,7 @@
      }
  
      @SideOnly(Side.CLIENT)
@@ -59,7 +67,7 @@
      public boolean hasEffect(ItemStack par1ItemStack)
      {
          return par1ItemStack.isItemEnchanted();
-@@ -674,7 +686,7 @@
+@@ -674,7 +687,7 @@
      // JAVADOC METHOD $$ func_77616_k
      public boolean isItemTool(ItemStack par1ItemStack)
      {
@@ -68,7 +76,7 @@
      }
  
      protected MovingObjectPosition getMovingObjectPositionFromPlayer(World par1World, EntityPlayer par2EntityPlayer, boolean par3)
-@@ -683,7 +695,7 @@
+@@ -683,7 +696,7 @@
          float f1 = par2EntityPlayer.prevRotationPitch + (par2EntityPlayer.rotationPitch - par2EntityPlayer.prevRotationPitch) * f;
          float f2 = par2EntityPlayer.prevRotationYaw + (par2EntityPlayer.rotationYaw - par2EntityPlayer.prevRotationYaw) * f;
          double d0 = par2EntityPlayer.prevPosX + (par2EntityPlayer.posX - par2EntityPlayer.prevPosX) * (double)f;
@@ -77,7 +85,7 @@
          double d2 = par2EntityPlayer.prevPosZ + (par2EntityPlayer.posZ - par2EntityPlayer.prevPosZ) * (double)f;
          Vec3 vec3 = par1World.getWorldVec3Pool().getVecFromPool(d0, d1, d2);
          float f3 = MathHelper.cos(-f2 * 0.017453292F - (float)Math.PI);
-@@ -693,6 +705,10 @@
+@@ -693,6 +706,10 @@
          float f7 = f4 * f5;
          float f8 = f3 * f5;
          double d3 = 5.0D;
@@ -88,7 +96,7 @@
          Vec3 vec31 = vec3.addVector((double)f7 * d3, (double)f6 * d3, (double)f8 * d3);
          return par1World.func_147447_a(vec3, vec31, par3, !par3, false);
      }
-@@ -773,6 +789,532 @@
+@@ -773,6 +790,542 @@
          return this.iconString == null ? "MISSING_ICON_ITEM_" + field_150901_e.func_148757_b(this) + "_" + this.unlocalizedName : this.iconString;
      }
  
@@ -234,7 +242,7 @@
 +     */
 +    public ItemStack getContainerItem(ItemStack itemStack)
 +    {
-+        if (!hasContainerItem())
++        if (!hasContainerItem(itemStack))
 +        {
 +            return null;
 +        }
@@ -242,6 +250,16 @@
 +    }
 +
 +    /**
++     * ItemStack sensitive version of hasContainerItem
++     * @param stack The current item stack
++     * @return True if this item has a 'container'
++     */
++    public boolean hasContainerItem(ItemStack stack)
++    {
++        return hasContainerItem();
++    }
++
++    /**
 +     * Retrieves the normal 'lifespan' of this item when it is dropped on the ground as a EntityItem.
 +     * This is in ticks, standard result is 6000, or 5 mins.
 +     *
@@ -621,7 +639,7 @@
      public static enum ToolMaterial
      {
          WOOD(0, 59, 2.0F, 0.0F, 15),
-@@ -793,6 +1335,9 @@
+@@ -793,6 +1346,9 @@
  
          private static final String __OBFID = "CL_00000042";
  
@@ -631,7 +649,7 @@
          private ToolMaterial(int par3, int par4, float par5, float par6, int par7)
          {
              this.harvestLevel = par3;
-@@ -834,7 +1379,15 @@
+@@ -834,7 +1390,15 @@
  
          public Item func_150995_f()
          {

patches/minecraft/net/minecraft/tileentity/TileEntityBrewingStand.java.patch

@@ -27,9 +27,12 @@
                  {
                      int j = this.field_145945_j[i].getItemDamage();
                      int k = this.func_145936_c(j, itemstack);
-@@ -167,7 +169,7 @@
+@@ -165,9 +167,9 @@
+                 }
+             }
  
-             if (itemstack.getItem().hasContainerItem())
+-            if (itemstack.getItem().hasContainerItem())
++            if (itemstack.getItem().hasContainerItem(itemstack))
              {
 -                this.field_145945_j[3] = new ItemStack(itemstack.getItem().getContainerItem());
 +                this.field_145945_j[3] = itemstack.getItem().getContainerItem(itemstack);