FOSS gamedev and creative worlds

This thread is to create a list of schemes of logic gates that can be built which mesecons torches.
Something like this is our goal:

Source
Note that those gates work in minecraft but don't work in minetest-mesecons and that's the reason for this project.

The torch AND gate


The torch DIODE


The torch XOR gate


Also there is a more efficient version using plugs

scheme by Temperest

The torch NAND gate

This is our first gate the AND gate:

The torch DIODE


Demonstration video: http://youtu.be/EjNK3guXCLc

The torch XOR gate



Also there is a more efficient version using plugs

scheme by Temperest

The torch NAND gate