Dweets awesomed by u/sigveseb

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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dnmc

function u(t) {

r=Math.random
j=960+S(t)*400
k=540+C(t)*400
for(i=0;i++<80*t;){
j+=r()*8-4
k+=r()*8-4
x.fillStyle=R(0,(S(t*4)+1)*127)
x.fillRect(j,k,6,6)
}

Nov 17 2020 7:07 AM UTC

}// 139/140

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It's the circle of life...

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dnmc

function u(t) {

for(q=0;q<192;q++)
for(w=0;w<108;w++){
x.fillStyle=R(0,127*(1+S(20*t+q*q+w*w+q*w)))
x.fillRect(q*10,w*10,10,10)
}

Nov 17 2020 5:59 AM UTC

}// 113/140

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Snakeskin

u/tomxor

Neat!

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taupelink

remix of d/20630 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(S(S(C(p=Y*S(q=X%3*2-2)-2+Y%1.5)))),x.fillStyle=R(h*p,h*q,2*h)

Nov 17 2020 1:17 AM UTC

}// 140/140

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d/20654

u/joeytwiddle

Entrance to sietch as perceived by an insect with compound eyes
u/tomxor

Nice description, (and dweet) :)

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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ciaccodavide

remix of d/20648 by u/ciaccodavide

function u(t) {

c.width|=p=314
for(X=p+1;X--;)
r=p+C(X+t*10)*Math.max(0,.5-Math.abs(.5-(X+t*50)%p/p)-.4)*p,
x.lineTo(C(X/50)*r+960,S(X/50)*r+540)
x.fill()

Nov 16 2020 8:19 PM UTC

}// 138/140

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L O A D I N G filled

u/ciaccodavide

#loading
u/tomxor

Nice!

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rodrigo.siqueira

remix of d/20620 by u/dnmc

function u(t) {

c.width|=0
for(var q=0;q<120;q++)for(var w=0;w<110;w++)
if((V=q|w+t*140)%9)x.fillRect(960+q*(w/9)-w*7,50+w*9,7,9)

Nov 16 2020 7:49 PM UTC

}// 113/140

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Fastpinski triangle flow #Sierpinski

u/danny@hille.dk

Nice
u/tomxor

Feels like some kind of alien pyramid... ok yeah i've been watching too much startgate

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ciaccodavide

remix of d/20621 by u/ciaccodavide

function u(t) {

z=t*t,w=960,h=540
t<13.37?(x.moveTo(w,h),x.lineTo(w+C(z|z)*2e3,h+S(z|z)*2e3),x.stroke()):(x.moveTo(w,h),x.arc(w,h,99,0,9),x.fill())

Nov 15 2020 9:47 PM UTC

}// 131/140

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B L A C K S U N #symmetry

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁲𩑳𩑴𥁲𨑮𬱦𫱲𫐨𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱴𚠹𝰥𜰶𜁽𛀹𞐥𛀵𜀥𛀮𜀵𚑠𚐬𭁲𨑮𬱬𨑴𩐨𞐶𜀬𝐴𜀩𛁍🐲𜀰𚡍𨑴𪀮𬡡𫡤𫱭𚀩𛁡🐱𜠻𨐭𛐻𩡩𫁬𤡥𨱴𚁍𛁍𛁍𛁍𚐬𬡯𭁡𭁥𚀮𝐲𜰩𚐻`.replace(/u../g,'')))

Nov 15 2020 4:05 PM UTC

}// 117/140

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Mandala #symmetry

u/tomxor

🍄
u/smtsjhr

v pretty

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plusright

function u(t) {

c.width=999;w=40;a=16
for(i=0;i<a;i++){for(j=0;j<a;j++){s=i%2==0?-1:1
x.fillRect(-2*w+i*2*w+S(t)*w+C(t)*-s*w,-2*w+j*2*w+(C(t)*w*s),w,w)}}

Nov 15 2020 8:26 AM UTC

}// 137/140

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possibly #symmetry

u/plusright

gotta find a more succinct way of writing for loops, this one just feels a little too dull
u/yonatan

c.width=999 for(w=i=40;i--;)for(j=16;j--;)s=i%2==0?-1:1,x.fillRect(-2*w+i*2*w+S(t)*w+C(t)*-s*w,-2*w+j*2*w+(C(t)*w*s),w,w)
u/yonatan

actually, the fillRect can go into the for loop's final expression, between the ; and the ) to save 2 more chars
u/plusright

aha! that's clever, thanks.

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smtsjhr

remix of d/20615 by u/smtsjhr

function u(t) {

for(c.width|=n=2;n<8;n++)for(i=0|S(t*n/9)*30+30;k=(150+75*C(t*i/99)),i--;)x.lineTo(480*n-1200+k*S(j=i*6.28/n),540-k*C(j+t*n/5));;x.stroke()

Nov 14 2020 10:47 PM UTC

}// 139/140

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