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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Purpzie

remix of d/4329 by u/retera

function u(t) {

for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

Oct 12 2018 4:53 PM UTC

}// 119/140

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Combined 3 for loops into 1, shortening from 140 to 119 characters

u/donbright

awesome

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kkingsbe

function u(t) {

with(x)for(q=j=64;j--;fillStyle=R(q,j*3,q-i*q),fill(stroke()))for(beginPath(i=5);i--;)arc(960+S(m=i*11+t)*400,340+C(m)*200+j*5,(j&64)*q,0,7)

Sep 20 2019 2:16 PM UTC

}// 140/140

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Another remix

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jonathan_b

remix of d/4796 by u/jonathan_b

function u(t) {

for(c.width|=i=j=2**9;i--;)p=t-8*i,x.fillStyle=`hsl(${p},54%,47%,1)`,x.beginPath(),x.arc(j*2+i*2*C(i)*C(p),j+i*S(i),5*C(p)+25,0,7),x.fill();

Dec 30 2017 4:34 AM UTC

}// 140/140

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taupelink

remix of d/25492 by u/taupelink

function u(t) {

for(k=300,m=t?0:2e4;m--;x.fill())x.beginPath(x.fillStyle=R(r=m**(m%.75),i=m%k/.9,r+i,r/i/4)),x.arc(m%8*k+r*C(m),(m>>3)%5*k+r*S(m),r,m,m-m%4)

May 13 2022 6:53 PM UTC

}// 140/140

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d/25493

u/taupelink

Note: This dweet looks different on different browsers.You may see a blank column on the left edge and just to the right of center. Those were not there when I composed the dweet on iOS. They can be eliminated by replacing m-m%4 at the end with m-m%4+(m%4?0:7)
u/taupelink

I think what's happening is, different environments interpret arc differently in case the start and end angles are the same. In iOS, a full circle is drawn (which is what I intended). Elsewhere, nothing is drawn (hence the white columns you may be seeing).
u/pavel

As far as I know it is just Safari that has a bug with arc, where the two angle terms do not simply get %(2*pi) treatment. If the angles are sufficiently large, like 10pi-ish, the arc breaks and draws weird lines. So you have to ensure the angles are small manually :/
u/taupelink

well, the question here is what happens when the angle difference is zero? I suspect this is another quirk of Safari/iOS: when the angle is zero, it defaults to drawing a full circle.

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taupelink

remix of d/28140 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㌶〻椭ⴻ砮晩汬剥捴⡘⨶㜰⵷ⱙ⨳㔰⵷ⱷ⨽㈬眩⥘㵩╍慴栮偉ⱙ㵘⩩┳ⱸ⹦楬汓瑹汥㵠桳氨⑻⡘簰⤪⨴⨳㕽Ⱔ笶〫㌰⩓⡘⭙⼲⥽┬⑻㐰ⴲ〪匨太匨堪天ⵘ⩃⡘⩘ⵙ⩙⤩紥Ⱔ筩⩩⼱攷紩怬眽椯琯㤪⩴`.replace(/u([^D].)/g,'$1%')))

Jul 17 2023 8:00 PM UTC

}// 140/140

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d/28143

u/taupelink

Looks different on different browsers. I created this on iOS...it's looking different on Windows Chrome.
u/taupelink

Little spots of color on Windows, they're not what I intended
u/joeytwiddle

I get a few X spots on Firefox Linux

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KilledByAPixel

remix of d/21955 by u/KilledByAPixel

function u(t) {

for(d=i=1e4,Y=t*=99,X=t*30%2e3;i--;)x.fillRect(X+=C(d+=t&i),Y+=S(d),1,.1)

Mar 15 2021 4:20 AM UTC

}// 73/140

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Strange Gear Collection

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username

remix of d/3201 by u/cantelope

function u(t) {

t*=2e-2
with(x)for(q=i=c.width=666,font=`2em'`;i--;)fillText(String.fromCharCode(9712+i%8),S(t+i)*i*9,C(t-i)*i%9*99)

Jul 20 2019 7:29 PM UTC

}// 116/140

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cutouts

u/username

#randomremix no 21
u/username

#randomremix no 22

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jellyedwards

remix of d/19684 by u/jgobi

function u(t) {

for(c.width|=i=400;i--;x.fillRect(960-6+C($)*_,540-6+S($)*_,12,12))$=i/999*Math.PI*t,_=500*S(t+i/4),x.fillStyle=`hsl(${_},99%,50%)`

Aug 15 2020 9:26 PM UTC

}// 131/140

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Kinda looks like sand on speaker resonance

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joe.m

remix of d/32390 by u/joe.m

function u(t) {

r=Math.random
c.style='filter:sepia()invert('
for(n=m=500;n--;)!t?u[n]=r()*2e3:x.fillRect(u[n]+(i=r()*n*t)*S(q=r()*7),u[m-n]+i*C(q),.8,.8)

Sep 8 2024 10:14 PM UTC

}// 138/140

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the night sky #stars ✨

u/joe.m

#waitforit
u/joe.m

take two: two fewer bytes, and in colour.

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rodrigo.siqueira

remix of d/33429 by u/kruno.ooo

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑻𬡥𬱥𭀨𮀮𩠽𩡩𫁬𤡥𨱴𚐻𬱣𨑬𩐨𞐬𞐩𞱸𛡭👴𬡡𫡳𫁡𭁥𞱸𛡲👲𫱴𨑴𩐊𩰽𚀩🐾婦𚀰𛀭𜐬𞐬𜠩𒡭𚀹𞐬𝐶𚐊𬠨𜐩𒡦𚀰𛀭𜐱𜀬𜐬𜠳𜀩𒡭𚀭𝀬𭀥𝐪𝠰𛐹𞐩𒡦𚀭𜰬𛐷𛀸𛁧𚀩𚐊𬠨𝀮𜰩𒡧𚀩𒡦𚀹𛀰𛀴𛀳𚐊𫐨𛐳𛀷𚐊𬠨𝀩𘀊𩠨𞐬𛐳𛁧𚀩𛀴𚑽`.replace(/u../g,'')))

Feb 28 2025 6:40 PM UTC

}// 140/140

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