Sorry for the delay in content, I just needed a bit of a break. I'm hoping to have a video out once a week from now on but I may still miss here and there. My goal is to try to make some more involved projects that I've had on my backburner for a while, so there should be some good stuff on the way.
Not only that but he also encountered many problems that were similar to electronic counterparts (chaining gates breaking things, certain gates being more unstable than others, errors adding up etc)
Came expecting just an adder circuit, but I'm genuinely impressed with the registers and bus. Kinda crazy this was possible without it blowing up or the game lagging to unplayableness
It's interesting to see what your logic gate mechanisms look like. I don't know enough about mechanical linkages to say much on them in that context, but coming from an electrical engineering/programming background myself, I'd always wondered what sort of mechanisms would be involved in creating logic gates in polybridge.
Achievement Unlocked: Turing Complete! Seriously tho, the whole video is impressiveness one after another. from bits to gates to adders to RAMs to programs to outputs. Inaccuracies are the bane of any mechanical computer yet you conquered it all. I especially love the "wheels on wheels" output method. It reminds me of those fourier transform video demonstration and how elegant it is mathematically. It's basically a branch of a binary tree! Visualized! Needless to say, you mechanical knowledge is incomparable
The great part about computer builds in sandbox games is that while they are limited by part count performance, simulated mechanical delay, or delay in the code, they can be built in basically any sandbox game with moving parts because logic gates themselves are simple.
I thought you were gonna use some sort of clockwork mechanism but this way is pretty cool too. Would love to see you make computers in different ways in different games too!
We are making minecraft inside of minecraft, a roblox player inside of a roblox game, now a computer inside of poly bridge (a physical game engine), A COMPUTER WITH A GAME INSIDE OF TERRARIA, AI THAT CAN CREATE AN AI, WHAT FURTHER? ALTERNATIVE REALITY?
Do you have like. Napkins or notebooks that you record things on while you're working? It'd be super cool to see all the little thoughts and records that you keep track of while doing this stuff.
Your implementation of a almost SR latch was pretty interesting. Hybridizing 2 input types was cool, along with the fact that it was effectively its own logic gate. The only downside is you _technically_ lose Q’, but it’s not often used, and can be simulated with a not gate anyway. Cool gate!
For those who don’t know: - AND gates require both inputs to be active for it to make an output. Two 1s go in, 1 goes out. - OR gates only need one of the two inputs to be active for it to make an output. One 1 goes in, 1 goes out. - XOR, or exclusive OR, gates require one specific input for the output. It has two inputs, but it can only accept one at a time or else it doesn’t work at all. - NOT gate, commonly known as an inverter or inverse gate, turns the input into the opposite when outputting. It turns 1s into 0s and 0s into 1s
Really cool! I really like studying and making these sort of computers, the good news is that there is a lot of content on RU-vid about it ( usagi electric comes to mind immediately). Glad to add this video to the group!
Hey! Love your content! You should try From the Depths, its a really fun sandbox building game that kind of fits in to the genre of games that you play. Its a block based building game where you build ships, tanks, planes, satellites, aircraft carriers, etc to fight ai craft and theres a campaign too. It would be really fun to watch you figure out the weird things you can do in the game
I tried to make a slightly larger calculator a year and a bit ago in pb2 - managed to get a seriously compact adder, but could never quite get the D-latches to do their job. Most likely because I "locked" them in place by actively tensioning a cable instead of passively using a spring. great work!
i think it would be relatively simple to make a 7 segment display. you could just use a bunch of and gates to convert the binary into decimal, and then run the output to a display
There are actually ways to feed the bits directly into gates, but you need 3-5 gates (as far as I remember) for each of the 7 segments. If I remember that right, it would be 30-ish gates total. More gates than this whole computer currently has, even if you count each of the mechanical linkages in the output slider as an "analog addition" gate.
My brother and I have *joked* with each other in the past about you doing this, but we didn't expect it to actually happen! Incredibly impressive creation!
you should try this in besieged. maybe working in 3d will be a bit easier, and you dont have to reinvent all the logic gates as most of the components available in poly bridge (springs, pistons, rope, etc) are already available
"Making the entire biology of all organisms known in the history of existence in poly bridge 2" is this madlads regular Saturday. Not to mention " Making a working solar system in besiege"
Wow that's really good. .. I kinda fell in love with computer engineering and went a little crazy and built a working computer in no man's sky. Using inverters and autoswitches as transistors. Would love to see what you would devlop with such a system
Not gonna lie once i lose track of wtf was happening, everything else after became impossible to comprehend. Like god damn Algebra II in highschool. Thanks for the nostalgia, loved the vid
I don’t know what any of the gates do, and this made no sense, I just like watching Reid Captain make things that weren’t meant to be created in Poly Bridge 3.
It always feels magical to see logic gates being composed together to make a programmable computer. This is honestly a pretty good demonstration for how analog (non-electrical) computers are possible. It's great.
It is a great demonstration for how digital computers work since they did in fact use digital logic here, analog computers are a bit different than just saying that it isn't electronic since we have analog electrical computers too.
I scrolled past a video yesterday along the lines of "How bit flips actually physically happen". Now I know that somebody just miscalculated the stiffness of the many springs in my computer
Not sure if it was suggested before, but I think it might be interesting to see you do a playthrough of Turing Complete? It's a game where you build an 8-bit computer from scratch with logic gates and write programs on it. Not sure if there is a sandbox mode in it though.
i think the bounciness is partially caused by unneeded sophistication in the slider. some if the struttingncould just be pinned instead of mechanically locked
My dad actually introduced a concept to me once, and it's stuck in my head ever since. All types of logic gates can be created with only the use of NAND gates. Basic examples below NOT = NAND(A~A) OR = NAND(NAND(A~A) ~ NAND(B~B)) AND = NAND(NAND(A~B) ~ NAND(A~B)) XOR = NAND(NAND(NAND(A~A) ~ NAND(B~B)) ~ NAND(A~B) ~ NAND(NAND(A~A) ~ NAND(B~B)) ~ NAND(A~B))
