case DOWN:
itemblock.onItemUseFirst(itemstack, player, world, x, y++, z, side, xOffset, yOffset, zOffset);
itemblock.onItemUse(itemstack, player, world, x, y++, z, side, xOffset, yOffset, zOffset);
break;
case EAST:
itemblock.onItemUseFirst(itemstack, player, world, x--, y, z, side, xOffset, yOffset, zOffset);
itemblock.onItemUse(itemstack, player, world, x--, y, z, side, xOffset, yOffset, zOffset);
break;
case NORTH:
itemblock.onItemUseFirst(itemstack, player, world, x, y, z++, side, xOffset, yOffset, zOffset);
itemblock.onItemUse(itemstack, player, world, x, y, z++, side, xOffset, yOffset, zOffset);