Random dweets | Dwitter

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.

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SuperFromND

function u(t) {

for(c.width=w=1920,t||(a=b=250),e=d=>2.71**(d/50),i=0;i<w;i++)x.lineTo(i,540+1500*S(t+3260*i/1e3));x.stroke(),x.drawImage(c,T(3*t),20);

Sep 26 2018 10:31 PM UTC

}// 135/140

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Triangular Pulsation

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PhiLho

function u(t) {

c.width=W=200;if(!t){R=Math.random;N=999;H=99;A=Array(N).fill(0).map(v=>R()<.1?R()*H:0)}for(i=0;i<W;i++)h=A[~~(i+t)%N],x.fillRect(i,H-h,2,h)

Jul 21 2016 4:30 PM UTC

}// 140/140

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Will not work on old browsers, as I used some ES6 for brevity...

u/PhiLho

At least, works on latest Chrome and Firefox... Ah, and Edge too!

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katkip

remix of d/9496 by u/katkip

function u(t) {

c.style="background:#055";c.width^=0;x.fillStyle='#fff';x.font='1cm A';for(i=0;i<500;i++)x.fillText("❄",960+C(i)*960,(T(t/9+i*i)*1080))

Aug 28 2018 6:47 AM UTC

}// 135/140

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#snow

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username

remix of d/6323 by u/yonatan

function u(t) {

for(a=_=140;--a;x.fill()){x.beginPath(x.fillStyle=R($=_*S(a+t),$+_,$+a))
for(i=3;i--;)x.lineTo(960+C(z=t+T(i)+a)*a*9,540+S(z)*a*9)}

Jul 10 2019 11:18 AM UTC

}// 132/140

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deadly rotation

u/username

#randomremix no 20

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magna

remix of d/8757 by u/micahcowan

function u(t) {

c.width|=D=C(r=3*S(t))
x.setTransform(1+9*D,U=S(r)*5,0,9+D,825-40*U,99*D)
for(i=9;--i;x.fillRect(-52.5+i*10,40,5,20))x.fillStyle=R(D<0&&255)

Jun 27 2018 5:38 AM UTC

}// 140/140

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Show more comments…
u/micahcowan

😍
u/micahcowan

Very useful shortcuts, I'll have to use them in future. ...I'm thinking like a C programmer - in the C standard the order in which arguments are evaluated is unspecified; apparently the ES standard strictly defines order-of eval to be the intuitive left-to-right order. Good to know!
u/micahcowan

Ha, it feels "wrong" to set fillStyle 9 times in a row. But a great way to eliminate that last little character!
u/micahcowan

#default
u/magna

When you're out of characters you can shave "legally", you have to start compromising and enter the "wrong" and/or "meh, it's just a good approximation" territory :)
u/magna

Like Math.PI * 2 === 7
u/micahcowan

Heh, totally. :D
u/pythech

hack to save 2 chars: x.fillStyle=R(-D*9e7)
u/pythech

I guess that's "meh" territory
u/magna

@pythech nice!

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nikoloffgeorgi

function u(t) {

c.width|=a=(o)=>{x.lineWidth=50
x.moveTo(o,440)
x.quadraticCurveTo(o+S(t)*99,540,o,640)
x.stroke()}
i=9;while(i--){a(520+i*100+S(t)*200)}

Sep 9 2022 5:10 PM UTC

}// 137/140

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#default

u/Qwitter

Shake that infinite radius limit you crazy arcs

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pewpew

function u(t) {

for(i=1;i<400;i++){
b=128-S(t)*127;s=i*0.5;l=s%(C(t)*i);x.fillStyle = R(b,s,s,0.5*(S(t*i)));x.fillRect(1920/400*i,540+C(t)*T(t*i)*200,l,l);}

Jan 4 2018 5:57 PM UTC

}// 140/140

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StarStep

function u(t) {

x[s='fillStyle']='#FFF2'
x[f='fillRect'](0,0,1e4,1e4)
for(i=1e3;i--;x[f](960+S(i)*q,540+C(i)*q,40,40))x[s]=`hsl(${q=(i*2%1e3*t)/2},80%,60%`

Mar 16 2018 11:27 PM UTC

}// 139/140

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taupelink

remix of d/24607 by u/taupelink

function u(t) {

eval(unescape(escape`景爨洽琿〺㍥㐻洭ⴻ砮獴牯步⠩⥘㵓⡭⤬夽匨洪洩ⱶ㴱ⴳ⩓⡙⼳⤯洪⨮㈬砮獴牯步却祬攽刨椽津㤹⬹㤬椪⨽瘬椪⩶ⰴ⨪夯㌯瘩ⱸ⹬楮敗楤瑨㴵〪瘬砮扥杩湐慴栨⤬砮慲挨㤶〪⬫堬㔴〪⬫夬㘰⩶ⱭⱭ⭙⩶⤠`.replace(/u([^D].)/g,'$1%')))

Dec 28 2021 4:25 PM UTC

}// 140/140

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d/24644

u/magna

Awesome!
u/UEZ

#autumn #impressionism

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ciaccodavide

remix of d/24208 by u/ciaccodavide

function u(t) {

for(c.width=w=64,i=0;i<w*w;i++)x.fillRect(X=i%w,y=~~(i/w),(.7*X*(k='nnnnn22nnncHTTT222222TTTHcnnn22nnnnn'.charCodeAt(y))+t-X**2+k*.01)%2,1)

Oct 23 2021 8:16 AM UTC

}// 139/140

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u/rep_movsd

This is cool
u/Joachim

I only just realised you can change the pattern from the string! #pattern #animated