protected override void HandleMouseClick(Slot par1Slot, int par2, int par3, bool par4)
{
if (par1Slot != null)
{
if (par1Slot.Inventory == Inventory)
{
InventoryPlayer inventoryplayer = Mc.ThePlayer.Inventory;
ItemStack itemstack1 = inventoryplayer.GetItemStack();
ItemStack itemstack4 = par1Slot.GetStack();
if (itemstack1 != null && itemstack4 != null && itemstack1.ItemID == itemstack4.ItemID)
{
if (par3 == 0)
{
if (par4)
{
itemstack1.StackSize = itemstack1.GetMaxStackSize();
}
else if (itemstack1.StackSize < itemstack1.GetMaxStackSize())
{
itemstack1.StackSize++;
}
}
else if (itemstack1.StackSize <= 1)
{
inventoryplayer.SetItemStack(null);
}
else
{
itemstack1.StackSize--;
}
}
else if (itemstack1 != null)
{
inventoryplayer.SetItemStack(null);
}
else if (itemstack4 == null)
{
inventoryplayer.SetItemStack(null);
}
else if (itemstack1 == null || itemstack1.ItemID != itemstack4.ItemID)
{
inventoryplayer.SetItemStack(ItemStack.CopyItemStack(itemstack4));
ItemStack itemstack2 = inventoryplayer.GetItemStack();
if (par4)
{
itemstack2.StackSize = itemstack2.GetMaxStackSize();
}
}
}
else
{
InventorySlots.SlotClick(par1Slot.SlotNumber, par3, par4, Mc.ThePlayer);
ItemStack itemstack = InventorySlots.GetSlot(par1Slot.SlotNumber).GetStack();
Mc.PlayerController.SendSlotPacket(itemstack, (par1Slot.SlotNumber - InventorySlots.InventorySlots.Count) + 9 + 36);
}
}
else
{
InventoryPlayer inventoryplayer1 = Mc.ThePlayer.Inventory;
if (inventoryplayer1.GetItemStack() != null)
{
if (par3 == 0)
{
Mc.ThePlayer.DropPlayerItem(inventoryplayer1.GetItemStack());
Mc.PlayerController.Func_35639_a(inventoryplayer1.GetItemStack());
inventoryplayer1.SetItemStack(null);
}
if (par3 == 1)
{
ItemStack itemstack3 = inventoryplayer1.GetItemStack().SplitStack(1);
Mc.ThePlayer.DropPlayerItem(itemstack3);
Mc.PlayerController.Func_35639_a(itemstack3);
if (inventoryplayer1.GetItemStack().StackSize == 0)
{
inventoryplayer1.SetItemStack(null);
}
}
}
}
}