Overview
The Analog Pass is an Analog Gate that calculates its output by determining what fraction of one Redstone signal can pass through based on another Redstone signal. Essentially:
- If one of the signals is 15, the full value of the other signal passes through.
- If one of the signals is 0, none of the signal passes through.
- Signals like 7 or 8 represent roughly half of the second signal.
The equation for the output Redstone signal (O) based on the two input Redstone signals (IA and IB) is:
O = (IA × IB) ÷ 15
Note that the fractional part is discarded, as Redstone signals operate only on integer levels.
Configuration
The inputs are marked with Pin Mark A and can be configured to face any direction for normal Analog Pass by right-clicking the block.
Parallel Analog Pass
The Analog Pass also has a Parallel Gate variant. In this configuration, the output is determined by finding the greatest signal on the Left and Right sides and then applying this value to the same equation in combination with the signal on the Back. The equation for the output Redstone signal (O) based on the input Redstone signals (L, R, and B) is:
O = (B × max(L, R)) ÷ 15
max(L, R) is the greatest signal between the Left (L) and Right (R) sides.
As before, the fractional part is discarded, as Redstone signals operate only on integer levels.