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

function u(t) {

if(!t)X=[];r=Math.random;s=2e3;i=s;while(i)o=X[i],c=i%2*s,X[i]=o<0||o>s||!o?500:o+r()*16-8,x.fillStyle=R(c,c,c,.05),x.fillRect(o,X[--i],8,8)

Dec 19 2016 10:28 AM UTC

}// 140/140

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u/joeytwiddle

Yikes. That looks contagious!

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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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BriSeven

function u(t) {

X=960,Y=80+1080*t%900,a=1;for(i=99;--i;)x.fillStyle=T(a)<9?R(S(t)*90,a/3,0):"#FF0",x.fillRect(X+=S(a)*Y/50,Y+=C(a)*4,8,8),a+=7*Math.random()

Dec 23 2016 4:23 AM UTC

}// 140/140

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BriSeven

remix of d/526 by u/BriSeven

function u(t) {

for(i=16;i--;)x.fillStyle=R((d=i*S(t)*7+119*i)%256,d/1.4%256,d/7%256,.1),x.fillRect(120*i+30*S(13*t%i)+50,500*C(t/13)+500,30*S(t/i*3)+10,40)

Dec 22 2016 1:27 AM UTC

}// 140/140

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a slight variation that happens to look IMHO a fair bit more pleasant and glassy.

u/iverjo

Candy land! :D

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BriSeven

remix of d/18171 by u/BriSeven

function u(t) {

s=30,c=240
for(i=0;i<64;i++)for(j=0;j<36;j++)
x.fillStyle=R(((n=(i^j))<(m=(S(t)+1)*20))*c,(n<m-20)*c,(n>m+20)*c),
x.fillRect(i*s,j*s,s,s)

Apr 7 2020 5:45 AM UTC

}// 138/140

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plot the XOR binary operator with a posterising effect.

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