/**
* Returns true if the furnace can smelt an item, i.e. has a source item, destination stack isn't
* full, etc.
*/
private boolean canSmelt() {
if (this.furnaceItemStacks[0] == null) {
return false;
} else {
ItemStack itemstack =
ConcreteMixerRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
if (itemstack == null) return false;
if (this.furnaceItemStacks[2] == null) return true;
if (!this.furnaceItemStacks[2].isItemEqual(itemstack)) return false;
int result = furnaceItemStacks[2].stackSize + itemstack.stackSize;
return (result <= getInventoryStackLimit() && result <= itemstack.getMaxStackSize());
}
}
/**
* Called when a player shift-clicks on a slot. You must override this or you will crash when
* someone does that.
*/
public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int par2) {
ItemStack itemstack = null;
Slot slot = (Slot) this.inventorySlots.get(par2);
if (slot != null && slot.getHasStack()) {
ItemStack itemstack1 = slot.getStack();
itemstack = itemstack1.copy();
if (par2 == 2) {
if (!this.mergeItemStack(itemstack1, 3, 39, true)) {
return null;
}
slot.onSlotChange(itemstack1, itemstack);
} else if (par2 != 1 && par2 != 0) {
if (ConcreteMixerRecipes.smelting().getSmeltingResult(itemstack1) != null) {
if (!this.mergeItemStack(itemstack1, 0, 1, false)) {
return null;
}
} else if (TileEntityConcreteMixer.isItemFuel(itemstack1)) {
if (!this.mergeItemStack(itemstack1, 1, 2, false)) {
return null;
}
} else if (par2 >= 3 && par2 < 30) {
if (!this.mergeItemStack(itemstack1, 30, 39, false)) {
return null;
}
} else if (par2 >= 30 && par2 < 39 && !this.mergeItemStack(itemstack1, 3, 30, false)) {
return null;
}
} else if (!this.mergeItemStack(itemstack1, 3, 39, false)) {
return null;
}
if (itemstack1.stackSize == 0) {
slot.putStack((ItemStack) null);
} else {
slot.onSlotChanged();
}
if (itemstack1.stackSize == itemstack.stackSize) {
return null;
}
slot.onPickupFromSlot(par1EntityPlayer, itemstack1);
}
return itemstack;
}
/**
* Turn one item from the furnace source stack into the appropriate smelted item in the furnace
* result stack
*/
public void smeltItem() {
if (this.canSmelt()) {
ItemStack itemstack =
ConcreteMixerRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
if (this.furnaceItemStacks[2] == null) {
this.furnaceItemStacks[2] = itemstack.copy();
} else if (this.furnaceItemStacks[2].isItemEqual(itemstack)) {
furnaceItemStacks[2].stackSize += itemstack.stackSize;
}
--this.furnaceItemStacks[0].stackSize;
if (this.furnaceItemStacks[0].stackSize <= 0) {
this.furnaceItemStacks[0] = null;
}
}
}