minecraft-java-edition
My friends and I are working on a TF2 map in Minecraft, essentially making different weapons and abilities for classes.
One of the classes we were working on was the Engie, and in Minecraft, there's really no way to make a very compact repeating mechanism.
We already have the dispenser thing set up (dispenser + splash potion of health), but for a turret, we're looking for the most compact way to make it "repeatedly" shoot out arrows.
There are 3 designs in mind:
and also this
The third design is slowest but it is also the smallest,
This setup works:
One of your items is an arrow, the other is any non-dispensing item like redstone.
Arrows will fire and miss the tripwire. Items will hit it then burn up, triggering a signal. You can use the items you suggested: arrow, cobble, cobble, arrow and the desired signal will be generated (well, the inverse).
Best Answer
Probably the most compact design I know is like this:
W-W-B
W-R-T
W = Redstone Wire B = Any solid block R = Repeater T = Redstone Torch
Taken from minecraftwiki.