Dwitter - javascript demos in 140 characters

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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taupelink

remix of d/22481 by u/taupelink

function u(t) {

for(i=k=150;--i;x.fillRect(q*6*X*C(Y)+X,k*8,q>>b,-5*i/t**t))f=i*t,X=f*f%9,Y=X*f%2,x.fillStyle=R(q=t%S(Y+S(X/t))*i<<(b=2+t/5),q*C(q/X%Y),i/2)

Apr 15 2021 2:03 AM UTC

}// 140/140

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d/22503

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lars-erik

remix of d/22464 by u/lars-erik

function u(t) {

for(c.width|=i=2e3;i-=5;x.lineTo(960+C(z=.017*(5*t+i)**1.36)*i/2,512+S(z)*i/2));x.stroke()

Apr 13 2021 7:20 PM UTC

}// 90/140

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Pointy spiral using u/Xen's golfed version with 1.4 exp instead

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taupelink

remix of d/22481 by u/taupelink

function u(t) {

for(i=k=390;--i;x.fillRect(X*C(Y),X*S(Y),i>>t,q>>t))f=7*i*t,X=f*f%2e3,Y=X*f%2,x.fillStyle=`hsl(${k+(q=i+C(Y)*i)},95%,${60*C(q)**Y}%,${4/q})`

Apr 14 2021 6:33 PM UTC

}// 140/140

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d/22495

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peterBandsholm

remix of d/22489 by u/peterBandsholm

function u(t) {

c.width=a=1920;for(i=0;i<a;i++)x.fillRect((S(t*4*i/a*S(i/a))+2)*480,i,S(i/600+t)*30,i)

Apr 14 2021 4:49 PM UTC

}// 87/140

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spiral

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contone

function u(t) {

x.transform(90,0,0,99,600,210)
x.lineCap='round'
x.stroke(p=new Path2D([...'M00Q2240C440400zM21V7M43V7M63V7M70Q8081V7M23H8M24H8'].join` `))

Apr 13 2021 4:26 PM UTC

}// 139/140

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u/danny@hille.dk

Love it :-)
u/Volfegan

bad #cat

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KilledByAPixel

remix of d/22499 by u/KilledByAPixel

function u(t) {

with(x)getImageData(X=Math.random(w=2e3)*w,Y=X*X%w,1,1).data[3]||rect(X-(s=99/(.1+t)),Y-s,s*=2,s,clearRect(0,0,w,w)),fill`evenodd`

Apr 15 2021 4:07 AM UTC

}// 130/140

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Space Station Maps 🛰️

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veubeke

remix of d/22448 by u/taupelink

function u(t) {

for(i=k=720;--i;x.fillText('🦖',k+X*C(Y),k+X*S(Y),q>>t))f=i*t,X=f*f%2e3,Y=X*f%7,x.fillStyle=R(q=i*S(Y%S((X/k)**S(Y*6)))/5,X%q,X*S(q/k-Y),.2)

Apr 13 2021 6:44 AM UTC

}// 139/140

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🦖 patterns

u/veubeke

My son always asks me to replace everything on dwitter with 🦖 and this one has some nice patterns.

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rodrigo.siqueira

remix of d/22450 by u/Xen

function u(t) {

for(x.fillRect(0,0,z=i=2e3,i);i--;x.font="2in'")x.fillStyle=R(i,i/3,x.fillText(String.fromCharCode(12449+i%99),480*(t%4),(i*i+t*i)%z),i+.1)

Apr 12 2021 9:22 PM UTC

}// 139/140

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Samurai's fire log #fire

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KilledByAPixel

remix of d/22412 by u/KilledByAPixel

function u(t) {

x.fillStyle=R(v=t%1>.2?99-C(t*=99)*300+C(t*t)*99:t=955,v/2,v/3)
x.fillRect(959+9*S(t),721+9*C(t),3,9)
x.drawImage(c,-16,-12,1952,1098)

Apr 11 2021 3:47 AM UTC

}// 134/140

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Desert Road 🏜️

Show more comments…
u/erin

wtf!?!?!?
u/erin

magic
u/RubyPiec

how the hell do you do these things
u/roboeor

its jjst a zoming in image
u/roboeor

bad
u/mrfoogles

thats mean
u/KilledByAPixel

#road

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Sny_de_Treves

function u(t) {

c.width=(a=960)*2
x.moveTo(a,b=540)
for(i=600;i;)x.bezierCurveTo(S(d=S(i)+t)*a+a,C(C(i)+t)*b/2,S(C(i-=6)-t)*a+a,C(d)*b/2+b*2,a,b)
x.stroke()

Apr 12 2021 11:20 PM UTC

}// 140/140

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#fracture in space