Dweets awesomed by u/DataMeta

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: #Opposites

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Geotale

function u(t) {

eval(unescape(escape`𭰽𮐽𜠵𝐻𪑦𚁴🀮𜐩𨰮𭱩𩁴𪀽𭰬𨰮𪁥𪑧𪁴👶🐱𝀳𞱦𫱲𚁬🐶𜀪𭀬𪐽𮀮𩱥𭁉𫑡𩱥𡁡𭁡𚀰𛁬𙑶𛁷𛀱𚐮𩁡𭁡𞱹𛐭𞱸𛡦𪑬𫁓𭁹𫁥👒𚁱👩𦱰𛐴𧐿𪑛𬁝𙠦𪑛𬀫𝁝𞠲𝐵𚠨𪑛𬁝🐽𪑛𬀫𝁝𚐬𬐬𬐩𛁸𛡦𪑬𫁒𩑣𭀨𮐬𚁬𚰱𚐥𭠬𜐬𜐩𚑰🐴𚡹`.replace(/u../g,'')))

Dec 28 2020 9:17 PM UTC

}// 133/140

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Rule 110

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rodrigo.siqueira

remix of d/20960 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=5e3;i--;f(0,K=i%2,280,i))f=(w,h,q,d)=>q>99?f(C(t)*h+q*C(d),w+q*S(d),q/2,i*i):x.fillRect(w+480+930*K*T(t),h+540,5,9*(1.2-K))

Dec 28 2020 1:34 PM UTC

}// 140/140

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Out-of-Donut Experience 🍩👻#torus #donut

u/ciaccodavide

nice!
u/jellyedwards

😄
u/Qwitter

"donuts souls exchange donuts holes" say it

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rodrigo.siqueira

remix of d/21067 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=q=r=s=1;i<400;x.lineTo(960+45*q+K,540+K*r+K*11+S(q+t*7)*25),i+=.1)r+=q*(K=58-s)/900,s+=q*r/4-s/30,q+=r-q/8;x.stroke()

Dec 26 2020 11:17 PM UTC

}// 132/140

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Melting Lorenz Attractor #lorenz

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rodrigo.siqueira

remix of d/21061 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=q=r=s=1;i<400;x.lineTo(960+40*q+K,540+59*r+S(K/20+t*5+q/9)*200),i+=.1)r+=q*(K=60-s)/800,s+=q*r/6-s/25,q+=r-q/6;x.stroke()

Dec 26 2020 12:25 AM UTC

}// 136/140

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Waves of Lorenz Attractor #lorenz

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Xen

function u(t) {

t?z>99?(i+=e,e=4,f+=z=1):x.fillText(f%(z*=4)==z/2?e=1:0,g+=C(y=355/339*i),h-=S(y)):e=z=h=f=i=g=134

Dec 25 2020 10:04 PM UTC

}// 98/140

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98byte Koch #snowflake

u/jwc

This is beautiful!
u/DataMeta

Yes! #waitforit
u/Xen

#fractal

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magna

remix of d/21060 by u/jwc

function u(t) {

for(c.width|=i=q=r=s=.1;i<t;x.fillRect(960+16*(q*C(t)+(s-28)*S(t)),540+20*r,4*i/t,4),i+=.01)o=r,r+=(q*(28-s)-r)/50,s+=q*o/50-s/25,q+=(o-q)/5

Dec 25 2020 6:51 AM UTC

}// 140/140

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Golfed to center rotation

u/jwc

Perfect, thanks for spotting that!

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rodrigo.siqueira

remix of d/21060 by u/jwc

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=q=r=s=.5;i<250;x.clearRect(960+9*q*C(t)+K*S(t)*20,540+26*r,6,4),i+=.1)r+=q*(K=40-s)/99,s+=q*r/70-s/45,q+=r-q/5

Dec 25 2020 2:13 AM UTC

}// 140/140

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Rotating Lorenz Attractor remix #lorenz

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jwc

function u(t) {

for(c.width|=i=q=r=s=.1;i<t;b=4*i/t,x.fillRect(960+16*(q*C(t)+s*S(t)),540+20*r,b,b),i+=.01)o=r,r+=(q*(28-s)-r)/50,s+=(q*o-2*s)/50,q+=(o-q)/5

Dec 24 2020 10:17 PM UTC

}// 140/140

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Rotating Lorenz Attractor

u/jwc

Deleted my previous attempt and replaced it with this instead because I found an obvious savings that allowed me to improve rect size. If you can save 5 chars, you can replace s*S(t) with (s-28)*S(t) to center the rotation. Alternatively, if you can save one char, you can remove b, make the last two args of fillRect …,4*i/t,4), and use the previous centering method with a small concession to the rect shape.
u/magna

Done! d/21062
u/magna

The key was replacing (q*o-2*s)/50 with q*o/50-s/25
u/jwc

Nice!!

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ciaccodavide

remix of d/21054 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𪑦𚁴🐽𜀩𩡯𬠨𪐽𜠴𜀻𪐭𛐻𚑔𦱩𧐽𪐪𪐥𜰶𜀊𩡯𬠨𪐽𜠴𜀻𪐭𛐻𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𥁛𪑝𯐬𝀲𙐬𝐰𙑠𛁸𛡦𪑬𫁒𩑣𭀨𪐪𞀬𣀪𞀬𞀬𞀩𒡌🐫𚱌𙐱𜰵𒡷𪁩𫁥𚁔𦱐𧐼👔𦱐𚰱𧐩𤀫𚰊𭠽𥁛𤀫𜑝𒡔𦱐𚰱𧐽𥁛𤁝𛁔𦱐𧐽𭠬𤀽𜀠`.replace(/u../g,'')))}{L=0;P=0;

Dec 23 2020 9:08 AM UTC

}// 140/140

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Bubble #Sort #visualization

u/katkip

awesomee!!

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pavel

function u(t) {

for(i=c.width|=m=[h=1080];i--;)m[i]=i**3%h
m.sort((a,b)=>(t-=1/h)>0&&a-b).map((n,i)=>x.fillRect(i,h-n,1,n,x.fillStyle=`hsl(${n/9},69%,50%`))

Dec 22 2020 11:33 PM UTC

}// 140/140

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Visualizing Array.sort

u/pavel

This probably works and is probably merge #sort :)
u/ciaccodavide

Nice!

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