Gavin786 Posted January 22, 2020 Share Posted January 22, 2020 Dear Klei, Please put DIODE gates into the automation logic. They prevent unwanted back-propagation of signals and are an essential component of any serious circuit design. Currently 2 NOT gates have to be chained to provide this critical functionality. It is a VERY EASY thing to put in the game but will make a big difference and give a complete set of basic practical gates needed to make (any kind of advanced) custom circuitry. EXAMPLE: There is a 4-bit signal bus that drives various doors/etc. IF a switch is placed before a door so that it can be manually actuated(no longer part of the control logic), then this signal will back-propagate and affect EVERY door connected to the logic. A DIODE gate is needed in front of the switch to prevent this behaviour. I am surprised it is not in the game already, actually, if only just for completeness of logic gates. Gavin786 Link to comment Share on other sites More sharing options...
yoakenashi Posted January 22, 2020 Share Posted January 22, 2020 An OR gate can also be used. Wire either input or both inputs to your source. This is actually a common “trick” used in the instrumentation and control control industry in real life. Though having an ASSIGN (ie, diode) is also a thing Link to comment Share on other sites More sharing options...
Gavin786 Posted January 22, 2020 Author Share Posted January 22, 2020 Yeah an OR/AND gate can be used HOWEVER : It takes up 4 squares rather than the 2 it should plus it is not workable in many designs and is functionally ugly. Often one has in this situation a bus of several wires in parallel and using OR/AND gates takes up a lot of parallel space, with a minimum of doubling the bus width, in practice its much better to use 2 NOT gates than AND/OR in most situations. DIODE is a fundamental real-world logic gate for complex circuits, any I have designed/built IRL I have used. 2 NOT gates can work in a pinch being 4 tiles long, I really do think that a DIODE is needed. Link to comment Share on other sites More sharing options...
speckle21 Posted January 23, 2020 Share Posted January 23, 2020 Would a buffer gate or filter gate set to 0.1s be sufficient? Link to comment Share on other sites More sharing options...
Coolthulhu Posted January 23, 2020 Share Posted January 23, 2020 OR gate could be cut down into an "identity gate" with no loss of functionality. Link to comment Share on other sites More sharing options...
TimHH Posted February 16, 2020 Share Posted February 16, 2020 I guess using OR or AND are both sufficient to deal with this and a 0.1s buffer gate works as well (if you really care about that 2 extra tile)... Link to comment Share on other sites More sharing options...
SpreadsheetGamr Posted March 3, 2020 Share Posted March 3, 2020 I just searched for this suggestion and found this post. Diode gates would make a great addition for the automation update. Using negative logic creates a lot of circumstances where a diode gate would be useful. Link to comment Share on other sites More sharing options...
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