Dweets by u/rodrigo.siqueira

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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rodrigo.siqueira

remix of d/21060 by u/jwc

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=q=r=s=.5;i<250;x.clearRect(960+9*q*C(t)+K*S(t)*20,540+26*r,6,4),i+=.1)r+=q*(K=40-s)/99,s+=q*r/70-s/45,q+=r-q/5

Dec 25 2020 2:13 AM UTC

}// 140/140

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Rotating Lorenz Attractor remix #lorenz

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rodrigo.siqueira

remix of d/6095 by u/Renaud___

function u(t) {

t?d=++f/1e5-1:f=h=i=99
for(e=4,z=2;z<3e3;z*=4)f%z==z/2?e=1:1;i+=e
x.fillRect(t*120,h-=d*S(i)*8-1,2,2e3)

Dec 18 2020 6:53 PM UTC

}// 103/140

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I was trying to remix a snowflake fractal and found mountains instead.

u/Xen

you almost beat me to my secret project i've been working on for last 2 weeks in silence ;-)
u/rodrigo.siqueira

I want to see your project u/Xen. My wishlist is to use x.drawImage(c,1,0) trick to show infinite horizontal scrolling mountains. I like this style of generative mountains since I saw them for the first time in Moon Lander game, Atari's Vanguard and Moon Patrol.

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rodrigo.siqueira

remix of d/20959 by u/jellyedwards

function u(t) {

c.style.filter=`invert(`
for(e=k=c.width|=w=50;k--;x.fillRect(w|x.rotate(k%w+t/4),9,1,1))
x.setTransform(v=2+k%7,0,0,v,k,(k*k+t*v)*w%e-w*8)

Dec 15 2020 6:23 PM UTC

}// 139/140

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Night snow #snowflake

u/Xen

smooth!
u/pavel

Nice. Here's 126, maybe room for snowflake code with(x)for(fillRect(0,0,i=2e3,i);i--;)clearRect(50,9,!setTransform(s=2+i%7,0,0,s,i,i&&(i*i+t*s)*50%2e3-400),i&&!rotate(i+t/4))

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rodrigo.siqueira

remix of d/20989 by u/ntsutae

function u(t) {

for(c.width=X=128;X--;)for(Y=34;Y--;)(t*30+X&Y)%32<Y&&x.fillRect(X*2-Y,69-Y*2,2,2)

Dec 13 2020 10:25 PM UTC

}// 82/140

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Sierpinski Triangle Flow #sierpinski

u/magna

The 3398th triangle looks the most interesting

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rodrigo.siqueira

remix of d/20961 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=2e3,i);i--;x.clearRect(960+Y/(Z=d+8)*(h=540),h+X/Z*h+i/9,6,X))X=S(i)*(G=T(q=i/45))-1,Y=S((Z=q*9)+t)*(d=T(Z*9))

Dec 12 2020 12:11 AM UTC

}// 131/140

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Aligning the stars (cosmic axis) #stars

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rodrigo.siqueira

remix of d/20957 by u/KilledByAPixel

function u(t) {

for(k=c.width|=w=60;n=k--/w|0;x.fillRect(S(n**(k%w)),k%w/5|x.rotate(S(t*5)-2),1,1))x.setTransform(k%2?(v=n%9):-v,0,0,v,n*w,(n*n+t)*360%2e3)

Dec 11 2020 6:39 PM UTC

}// 139/140

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Flock of flying birds (remix of "snow fall").

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rodrigo.siqueira

remix of d/20958 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=5e3;i--;f(0,K=i%3,200,i))f=(w,h,q,d)=>q>99?f(C(T(K-t/3))*h+q*C(V=d-t),w+q*S(V),q/2,i*5.6):x.fillRect(w+320+620*K,h+510,7,8)

Dec 11 2020 1:38 PM UTC

}// 140/140

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Flipping donuts #torus #donut 🍩🍩🍩

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rodrigo.siqueira

remix of d/20948 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=5e3;i--;f(0,K=i%2,280,i))
f=(w,h,q,d)=>q>99?f(C(t*2+K)*h+q*C(d+t),w+q*S(d+t),q/2,i*i):x.fillRect(w+480+930*K,h+510,5,9)

Dec 10 2020 9:43 PM UTC

}// 140/140

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Rotating Double Donuts #torus #donut 🍩🍩

u/TGY

I don't think you need "var" there. It works fine without it :)
u/New_Core

nice, and its 5 FPS faster with the "var" then without on my old machine.

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rodrigo.siqueira

remix of d/20948 by u/rodrigo.siqueira

function u(t) {

for(i=1e4;i--;f(0,K=i%2,280,i+t))
f=(w,h,q,d)=>q>99?f(h+q*C(d+3)*(1+K)/2,w+q*S(d),q/2,T(d*d+t*d)/2):
x.fillRect(w+480+930*K,h+510,.4,t<2)

Dec 10 2020 12:14 PM UTC

}// 137/140

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Perspective Double Donuts #torus #donut

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rodrigo.siqueira

remix of d/20935 by u/rodrigo.siqueira

function u(t) {

for(ⵠ=1e4;ⵠ--;ထ(0,ꖴ=2,280,ⵠ+t,`💡&&⭕⭕➜🍩🍩`))
ထ=(ഠ,𑄗,Ꙭ,ට)=>Ꙭ>99?ထ(𑄗+Ꙭ*C(ට),ഠ+Ꙭ*S(ට),Ꙭ/ꖴ,T(ට*ට+t*ට)/ꖴ):
x.fillRect(ഠ+480+950*(ⵠ%ꖴ),𑄗+510,.4,t<ꖴ)

Dec 9 2020 4:50 PM UTC

}// 140/140

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Illuminated Double Donuts #torus #donut

Show more comments…
u/ciaccodavide

Nice! Double donuts everywhere!
u/pavel

Not a fan of the obfuscated code. Looks nice to people who don't care to understand it but hurts your fellow coders that want to play around with it, which is a big part of Dwitter for me.
u/geb

for(i=1e4;i--;f(0,c=2,280,i+t,💡&&⭕⭕➜🍩🍩)) f=(w,h,q,d)=>q>99?f(h+q*C(d),w+q*S(d),q/c,T(d*d+t*d)/c): x.fillRect(w+480+950*(i%c),h+510,.4,t<c)
u/rodrigo.siqueira

I posted a cleaner version (remix). I usually avoid obfuscated code, but in this case it was for aesthetic reasons and for fun ("donuts everywhere" style). The 💡&&⭕⭕➜🍩🍩 part was just to illustrate, it has no functionality in the code.
u/tomxor

I think Pavel might be refering to unicode tofu, I get this too... the "⭕⭕➜🍩🍩" bit renders but almost all the other non-ASCII chars are tofu. I think it depends on what browser/OS combo you have.
u/tomxor

... and which fonts you've bothered installing.

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