SlotNaturalisFurnace

package nekpek.mod.Naturalis.PowerFurnace;

import net.minecraft.entity.item.EntityXPOrb;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.FurnaceRecipes;
import net.minecraft.stats.AchievementList;
import net.minecraft.util.MathHelper;
import cpw.mods.fml.common.registry.GameRegistry;

public class SlotNaturalisFurnace extends Slot
    {
        /** The player that is using the GUI where this slot resides. */
        private final EntityPlayer thePlayer;
        private int field_75228_b;

        public SlotNaturalisFurnace(EntityPlayer par1EntityPlayer, IInventory par2IInventory, int par3, int par4, int par5)
            {
                super(par2IInventory, par3, par4, par5);
                this.thePlayer = par1EntityPlayer;
            }

        /**
         * Check if the stack is a valid item for this slot. Always true beside
         * for the armor slots.
         */
        @Override
        public boolean isItemValid(ItemStack par1ItemStack)
            {
                return false;
            }

        /**
         * Decrease the size of the stack in slot (first int arg) by the amount
         * of the second int arg. Returns the new stack.
         */
        @Override
        public ItemStack decrStackSize(int par1)
            {
                if (this.getHasStack())
                    {
                        this.field_75228_b += Math.min(par1, this.getStack().stackSize);
                    }

                return super.decrStackSize(par1);
            }

        @Override
        public void onPickupFromSlot(EntityPlayer par1EntityPlayer, ItemStack par2ItemStack)
            {
                this.onCrafting(par2ItemStack);
                super.onPickupFromSlot(par1EntityPlayer, par2ItemStack);
            }

        /**
         * the itemStack passed in is the output - ie, iron ingots, and
         * pickaxes, not ore and wood. Typically increases an internal count
         * then calls onCrafting(item).
         */
        @Override
        protected void onCrafting(ItemStack par1ItemStack, int par2)
            {
                this.field_75228_b += par2;
                this.onCrafting(par1ItemStack);
            }

        /**
         * the itemStack passed in is the output - ie, iron ingots, and
         * pickaxes, not ore and wood.
         */
        @Override
        protected void onCrafting(ItemStack par1ItemStack)
            {
                par1ItemStack.onCrafting(this.thePlayer.worldObj, this.thePlayer, this.field_75228_b);

                if (!this.thePlayer.worldObj.isRemote)
                    {
                        int i = this.field_75228_b;
                        float f = FurnaceRecipes.smelting().getExperience(par1ItemStack);
                        int j;

                        if (f == 0.0F)
                            {
                                i = 0;
                            }
                        else
                            if (f < 1.0F)
                                {
                                    j = MathHelper.floor_float(i * f);

                                    if (j < MathHelper.ceiling_float_int(i * f) && (float) Math.random() < i * f - j)
                                        {
                                            ++j;
                                        }

                                    i = j;
                                }

                        while (i > 0)
                            {
                                j = EntityXPOrb.getXPSplit(i);
                                i -= j;
                                this.thePlayer.worldObj.spawnEntityInWorld(new EntityXPOrb(this.thePlayer.worldObj, this.thePlayer.posX, this.thePlayer.posY + 0.5D, this.thePlayer.posZ + 0.5D, j));
                            }
                    }

                this.field_75228_b = 0;

                GameRegistry.onItemSmelted(thePlayer, par1ItemStack);

                if (par1ItemStack.itemID == Item.ingotIron.itemID)
                    {
                        this.thePlayer.addStat(AchievementList.acquireIron, 1);
                    }

                if (par1ItemStack.itemID == Item.fishCooked.itemID)
                    {
                        this.thePlayer.addStat(AchievementList.cookFish, 1);
                    }
            }
    }