JS1k: The JavaScript code golfing competition
2013 - Spring!
NOT Logic
A logic simulator inspired by Minecraft's "redstone" mechanics. Click on the grid to place a component. Press any key to switch component type. 3 components are included:
- Author:
- Alex Patton
- Twitter:
- @
- GitHub:
- Facebook:
- Google+:
- +
- Reddit:
- /r/
- Pouet:
- Website:
- Compo:
- classic
- Demo link:
- https://js1k.com/2013-spring/demo/1508
- Shortlink:
- https://js1k.com/1508
- Blog post:
- please update here!
- Bytes:
- 971
- Chars:
- 971
- Submission
c.width=800;c.height=640;a.font="20pt Calibri";d=[];e=[];q="Black Green Gray Lime White Yellow".split(" ");j="None Wire NOT Crossing".split(" ");t=1;for(i=-1;4800>++i;)d[i]=0;e=d.slice(0);c.onmousedown=function(h){x=~~(h.pageX/10);y=~~(h.pageY/10);60>y&&(d[60*x+y]=t)};f=function(){e=d.slice(0);for(i=-1;4800>++i;)3==d[i]&&(d[i]=1);for(i=-1;4800>++i;)try{if(4==d[i]&&(3==e[i+1]||4==e[i+1]))d[i]=2;4==d[i]&&z(i-1);2==d[i]&&3>e[i+1]&&(d[i]=4)}catch(h){}g()}; _=function(h){h--;w(h,0);h+=2;w(h,1);h-=61;w(h,2);w(h+120,3)};w=function(h,k){z(h);if(5==d[h])switch(k){case 0:h--;z(h);break;case 1:h++;z(h);break;case 2:z(h-60);break;case 3:h+=60,z(h)}};z=function(h){1==d[h]&&(d[h]=3,_(h))};g=function(){a.clearRect(0,0,800,640);for(i=-1;4800>++i;)a.fillStyle=q[d[i]],a.fillRect(10*~~(i/60),10*(i%60),9.7,9.7);a.fillStyle=q[t];a.fillText(j[t],350,630);a.strokeStyle="Black";a.strokeText(j[t],350,630)};b.onkeypress=function(){t++;2==t&&(t=4);6==t&&(t=0)}; setInterval(f,50);- Description
- A logic simulator inspired by Minecraft's "redstone" mechanics. Click on the grid to place a component. Press any key to switch component type. 3 components are included: - Wire: Carries signals. - NOT: A gate that inverts the input. Input is on bottom, output is on top. Can also be used as a source of power. - Crossing: Used to cross a wire over another without connecting the two. NOTE: Cannot directly power NOT gates or other crossing components. Using these, you can make almost any kind of logic circuit or gate. Make an adder, a binary counter, RAM, etc.
- Base64 encoded
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Original source not submitted