Top dweets by u/BriSeven

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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BriSeven

remix of d/3498 by u/Xen

function u(t) {

t?x.fillStyle=R(t*9%X,t*9%Y):X=Y=255
for(i=9;i--;x.fillRect(X+i*250,Y%1e3,5,5))
X+=S(C(t)*11)/3
Y-=C(S(t)*11)*3
x.drawImage(c,C(t)/9,S(t)/9)

Nov 21 2017 4:56 AM UTC

}// 140/140

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u/Xen

nice effect

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BriSeven

remix of d/570 by u/BriSeven

function u(t) {

t=t%5;if(t<.1)r=X=Y=0,W=c.width=960,H=540;for(i=W*4;i--;)for(j=-1;j<2;j+=2)x.fillRect((X=(X+S(r+=C(t*i*r)/2))%W)*j+W/2,Y=(Y+C(r))%H,1,90/i)

Jan 1 2017 12:39 AM UTC

}// 139/140

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Rorschach with drips courtesy of 90/i

u/donbright

dude i love this...

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BriSeven

remix of d/17808 by u/BriSeven

function u(t) {

eval(unescape(escape`楦⠡琩愽䅲牡礨ㅥ㐩⹦楬氨ㄩ㭸⹳瑲潫攨湥眠偡瑨㉄⡠䴹〰‶〰氤筡⹭慰⠨砩㴾孃⡸⭴⤬匨砫琩崩絠⤩㭡㵡⹭慰⠨砬椩㴾砫匨琪椪砩⼹⤬砮汩湥坩摴栽㈰ⱸ⹳瑲潫敓瑹汥㵠桳氨⑻㤹⩴素㤹┵〥怠`.replace(/u([^D].)/g,'$1%')))

Apr 29 2025 3:53 AM UTC

}// 136/140

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Random walk rainbow windmill. Interesting things happen ias corner caps increase.

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BriSeven

remix of d/33625 by u/BriSeven

function u(t) {

eval(unescape(escape`吽晲慭攊䌽吥㔊刽启㕼《䄽䌪㈫㐊楦⠡琩愽《楦⠡䌩愽愾㸱ੌ㵍慴栮牡湤潭⠩⨲㰼㍼愾㹁ⴳ☷੖㴳㈰㠵㸾䰦ㄊ愽愦縨ㄼ㱁⥼嘼㱁੸⹦楬汒散琨ㄹ㈰ⵒ┲㔵⨹Ⱘ㔭䌩⨹⬨刯㈵㕼〩⨵㐬㤪嘬㤩`.replace(/u([^D].)/g,'$1%')))

Apr 23 2025 8:46 AM UTC

}// 133/140

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Kufic-esque Redux

u/BriSeven

Brought it down from 177 to 164 characters by switching the memory from an array to an int, and using bit shifting instead. Got rid of a lot of array operations by making my lookup index into 3 consecutive bits on the int. I saved enough bytes to be able to rearrange the offsets to fill the screen.
u/BriSeven

The dark underline on the previous go was a bug, a nice one. but unfortunately I ended up fixing it.
u/BriSeven

Oh, but you can recreate the bug by changing A=C*2+4 to A=C*2+2`
u/BriSeven

146.. so close! a=t?a:0 T=255 for(C=5;C--;x.fillRect(T*8-t*60%T*8,(5-C)*8+(t*60/T|0)*60,8*V,8))C||(a>>=1),A=C*2+2,V=32085>>(a*t&1<<3|a>>A-3&7)&1,a=a&~(1<<A)|V<<A;
u/warbino

@u/BriSeven 👍

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BriSeven

function u(t) {

c.width|=0
for(k=450;k--;x.fillRect(500+k/.5,350+k%5*99+S(k/50-t)*50,10,99))d='21012'[k%5],x.fillStyle=`hsl(${(d+8)*2}0 ${d+8}0% ${9-d}5%)`

Apr 4 2025 5:37 AM UTC

}// 139/140

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TDoV

u/384.cz

politics + dwitter = hell on earth
u/MyEpicDwitter

politics + twitter + dwitter = hell but worse and its on earth
u/joeytwiddle

#trans #pride #flag

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BriSeven

remix of d/24437 by u/BriSeven

function u(t) {

c.width*=1
for(i=64;i--;)x.setTransform(C(n=t+C(t)*i/40)*2,S(n),S(n)*2,C(n),950,400+i*5),x.font='5cm A',x.fillText('🏳️‍⚧️',-60,40)

Apr 3 2025 11:08 AM UTC

}// 130/140

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TDoV

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BriSeven

remix of d/24437 by u/BriSeven

function u(t) {

c.width*=1
for(i=15;i--;x.setTransform(C(n=t+C(t)*i/9)*2,-S(n),S(n)*2,C(n),960,99+i*60),x.font='5cm a')x.fillText([...'💔🧡💛💚💙💜'][i%5],-70,70)

Dec 6 2021 7:05 AM UTC

}// 140/140

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Stack of Hearts

u/vain

Nice!
u/vain

Btw... shouldn't "[i%5]" be "[i%6]"? Else you could save 1 char. :) What do these three points mean you used here: "fillText([... ,'" ?
u/BriSeven

Whoops, you're right. The ... is the spread operator, it splits the string in a unicode friendly way, and assigns the individual characters to the enclosing array literal.
u/BriSeven

@vain do notifications work on dwitter?
u/BriSeven

the ... next to the string is actually a special case. more generally it works on anything that implements the "iterator protocol" which is lots of stuff, but mostly arrays and array like things.

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BriSeven

function u(t) {

c.width*=1,s=20
for(i=0;i<s;i++)for(j=0;j<s;j++)
x.setTransform(a=C(d=t*C(i)*S(j))*s,b=S(d)*s,-b,a,i*101,j*107),x.fillRect(-2,-1,4,2)

Dec 4 2021 5:06 AM UTC

}// 133/140

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magnetic flux

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BriSeven

function u(t) {

eval(unescape(escape`挮睩摴株㴱ⱳ㴲㔵ⱓ㴴〻景爨椽〻椼医椫⬩景爨樽〻樼医樫⬩挽䌨椯ㄱ⭃⡴⼷⤩⩃⡪⼵⭃⠨樭琩⼵⭴⤩ⱸ⹦楬汓瑹汥㵒⠳〪椬猭挪猬猭挪猩ⱸ⹦楬汒散琨⵩⨨㌪䌨樯㐫㌩⬴⤫䌨樯㐫㌩⨶〫ㅥ㌬横匫猬匬匩`.replace(/u(..)/g,"$1%")))

Mar 12 2020 6:28 AM UTC

}// 137/140

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lava lamp #glass

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BriSeven

remix of d/17850 by u/Unum

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭰㴳⸱㭸⹳捡汥⠹〬㤰⤻景爨椽㔻椭ⴻ吽琥ㄵ⵰⩩⥸⹦楬汓瑹汥㵒⠰ⰰⰰⰨ吪吾㤿〺⡃⡔⤫ㄩ⼲⤩ⱸ⹦楬汔數琨≥汬潈≛楝ⰶⰹ⤻挮獴祬攮晩汴敲㵠扬畲⠤笭䌨琪㈩⨱ぽ灸⥣潮瑲慳琨㉥㌥⥠`.replace(/u(..)/g,"$1%")))

Mar 6 2020 1:37 AM UTC

}// 136/140

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morphing text. I comprimised on the precision of some constants, so some of the timing will go out of sync after a few runs.

u/katkip

nice

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