public ContainerConstructor(IInventory playerInv, IInventory tileEntity) {
        this.constructorInventory = playerInv;

        int i;
        int j;
        for(i = 0; i < 3; ++i) {
            for(j = 0; j < 3; ++j) {
                this.addSlotToContainer(new Slot(playerInv, j + i * 3, 62 + j * 18, 17 + i * 18));
            }
        }

        for(i = 0; i < 3; ++i) {
            for(j = 0; j < 9; ++j) {
                this.addSlotToContainer(new Slot(tileEntity, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
            }
        }

        for(i = 0; i < 9; ++i) {
            this.addSlotToContainer(new Slot(tileEntity, i, 8 + i * 18, 142));
        }

    }