Redstone Comparator

The Comparator is a block planned to be added in the Redstone Update for use with redstone circuitry. It will have two inputs: one from the back ('signal A') and one from the side ('signal B'). If signal B is stronger than signal A, there will be no output. Otherwise, it can be set to either repeat signal A at its current strength, or output the difference between both inputs. It is crafted using Nether Quartz, a new ore found in the Nether as of 13w01a.

It also provides a "subtraction" feature which results in the output being the strength of the back ('signal A') being subtracted by the side ('signal B'), however for this to work you must make sure that the front redstone torch is lit and also use another Comparator into the side for it to work. Signal B has to be less powerful than Signal A for it to work.



Trivia

 * The Comparator looks similar to a Redstone Repeater, just with another redstone torch.
 * It takes 0 ticks for the Comparator to change state.
 * The Comparator does not, however, re-strengthen a redstone signal. This means it can not be used for Super long instant circuits. It does, however, enable instant gates.
 * Right-clicking the Comparator will toggle the torch. The torch must be on for comporator subtraction to work (See above)