Dweets awesomed by u/graue

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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Current theme challenge: #ScaryMovies

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geb

remix of d/20620 by u/dnmc

function u(t) {

b=199
c.width=b*9
p=0|window.p
p=++p%b
for(q=0;q<b;q++)
for(w=0;w<b;w++)
if(q%p&w%p){
x.fillStyle=R((w+q),t,p)
x.fillRect(9*q,9*w,9,9)}

Nov 16 2020 9:16 AM UTC

}// 135/140

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#Sierpinski

u/Xen

nice
u/katkip

smooth

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femto113

function u(t) {

c.width=1920
X=960,Y=540,P=Math.PI,N=t/P%32,p=P/N
for(i=0;i<P;i+=p)x.fillRect(X+Y*(S(i+P)-S(i))/2*S(t+i),Y+Y*(C(i+P)-C(i))/2*S(t+i),19,19)

Nov 14 2020 8:31 AM UTC

}// 138/140

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linear motion rolling circle illusion

u/katkip

#illusion
u/DataMeta

nicely done
u/pavel

If you delete c.width=1920 you can see only the first dot move linearly
u/femto113

curves are a side effect of changing N with t, if you use a fixed value like N=16 you get straight lines

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username

remix of d/18089 by u/Xen

function u(t) {

eval(unescape(escape`睩瑨⡸⥧㴨␬弩㴾筧汯扡汁汰桡㴤ⱦ楬汓瑹汥㵟紬木ㄬ恨獬⠤筓⡴⨽琩⨶㥽ⰹ㤥ⰴ㈥怩Ɫ敧楮偡瑨⠩ⱡ牣⠱攳⭓⡴⤪㑥㈬䌨琩⨴攲⬵攲ⰵ〬〬㜩Ᵽ汯獥偡瑨⠩ⱦ楬氨⤬木⸰㌬✣晦昧⤬晩汬剥捴⠰ⰰⰹ攳ⰹ攳⤻`.replace(/u(..)/g,"$1%")))

Mar 31 2020 11:15 AM UTC

}// 139/140

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circle #waitforit

u/username

after some time it repeats (:
u/Xen

sexy!

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DaSpider

remix of d/701 by u/sigveseb

function u(t) {

eval(unescape(escape`𮀮𬡯𭁡𭁥𚁃𚁴𚐯𞐹𚐻𩡯𬠨𫁥𭀠𪐽𝁥𜰬𪠬𬰻𪠽𛐭𪐾🠴𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𚁪𙐸𚠲𚱩𙐲𛐸𛠵𚱃𚁴𚐩𚡳𛀵𝀰𚰨𪐥𜐶𛐸𛠵𚱓𚁴𚐩𚡳𛁳𛁳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𬰽𞐹𞐯𚀨𪠾🠳𚐫𜐭𭀪𝰯𜐱𙐱𚐬𬰯𝀩`.replace(/u../g,'')))

Mar 30 2020 7:58 PM UTC

}// 120/140

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u/sigveseb

Nice!
u/Xen

love it

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pavel

remix of d/18074 by u/pavel

function u(t) {

c.width|=f=(X,Y,d,z=2+X*S(a=Y-4*t))=>d>>8?x.fillRect(960+1e3*X*C(a)/z,540+1e3*Y/z,6,6):[t,t+2,t+4].map(i=>f(X+C(i)/d,Y+S(i)/d,2*d));f(0,0,2)

Mar 28 2020 3:27 AM UTC

}// 140/140

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#sierpinski dance

Show more comments…
u/sigveseb

Very clean!
u/DataMeta

So smooth!
u/aleamb

wow! very smart code!
u/lionleaf

What an amazing dweet. And little did you know I had already planned #dancing as the theme for April. You were ahead of the times :D
u/joeytwiddle

Nice! Here is a dirtier, underrated relative: d/13611
u/Qwitter

looks glossy!
u/vain

Very nice and smooth 3D rotated and transformed sierpinski

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pavel

function u(t) {

c.width|=0;for(let i=4e3,X=Y=Z=w=960;i--;x.fillRect(w+w*X/z,w*Y/z,s=64/z/z,s))a=i**t%5/.64,b=!!a,X=X/2+b*S(a+t),Y=Y/2+b,Z=Z/2+b*C(a+t),z=4+Z

May 2 2019 7:40 PM UTC

}// 140/140

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#sierpinski #pyramid #waitforit #chaosgame

u/pavel

#d3 #perspective
u/Jezza

I really like this!
u/jylikangas

Great! And with performance optimization. :)
u/katkip

UFO :))

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rodrigo.siqueira

remix of d/13592 by u/rodrigo.siqueira

function u(t) {

x.beginPath(x.globalAlpha=.08)
if(t<188.5)for(i=9,j=.1,X=960,k=Y=550;k/=1.4,i--;j*=-6)X+=S(f=t*(j-.2)/3)*k,x.lineTo(X,Y-=C(f)*k);x.stroke()

May 2 2019 6:49 PM UTC

}// 139/140

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Echinoid 7-Symmetry - It needs to run for PI minutes (188.5 seconds) to complete.

u/Jezza

#worththewait
u/DataMeta

That is quite beautiful

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pavel

remix of d/13590 by u/katkip

function u(t) {

x.fillRect(t%1*3e3,~~t*50,s=3**t&4?50:5,55-s)

May 2 2019 6:30 PM UTC

}// 45/140

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45 byte #maze

u/rodrigo.siqueira

See the PDF book about ASCII maze here: https://10print.org/x , it is about the one liner maze which code is just; 10 PRINT CHR$(205.5+RND(1)); : GOTO 10
u/katkip

Wow, it got golfed so much...
u/pavel

42: x.fillRect(t%1*3840,t<<6,s=9**t&64|6,76-s)

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robbyg

remix of d/13594 by u/robbyg

function u(t) {

c.width|=0
p=1.57
with(x)for(h=170,w=120;h--;)v=~~(h/17),beginPath(),moveTo(H=h%17*w,V=v*w),fill(arc(H,V,60,a=t+h%2*p+v%2*p*2,p*3+a))

May 2 2019 5:52 PM UTC

}// 133/140

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Synchronized pacpersons.

u/robbyg

Inspired by https://twitter.com/joey_aronson/status/1112…
u/katkip

no nazi lmao
u/Xen

love it!

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pavel

remix of d/13538 by u/vinca

function u(t) {

for(c.width=73,i=3e3;X=i--/41;x.fillRect(X,Y,1,2))h=Math.hypot,x.fillStyle=R(4e3/h(o=X-36,Y=i%41)+(b=2e3/h(o-25*S(5*t),20+9*T(4*t)-Y)),0,b)

May 1 2019 7:06 PM UTC

}// 139/140

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u/vinca

Amazing! 182->139bytes

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