To react to ticks, your block (not tile) class must override getTicker. This will just check that the BlockEntityType is the same one we just registered and then return a reference to the tick method (which we haven't made yet) of our MobSlayerTile.
To react to ticks, your block (not tile) class must override getTicker. This will just check that the BlockEntityType is the same one we just registered and then return a reference to the tick method (which we haven't made yet) of our MobSlayerTile.