Dweets awesomed by u/ds0

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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katkip

function u(t) {

q=259+t;t||(a=b=1);for(i=9;i--;)a+=S(b-C(t+i/3999)+C(i/9)/39),b+=C(a+S(t+i/3999)+S(i/9)/39),x.fillRect(540+a*q,540+b*q,5,5)

Feb 14 2019 4:06 PM UTC

}// 123/140

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#donut

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joeytwiddle

remix of d/577 by u/iverjo

function u(t) {

for(c.width|=i=99;i--;x.lineTo(1e3+r*S(p)**3,500-r/16*(13*C(p)-5*C(2*p)-2*C(3*p)-C(4*p)),15,15))p=i/16,r=400+99*S(3*t-p/9)**26,x.fill()

Feb 14 2019 1:35 PM UTC

}// 135/140

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u/katkip

Haha! From The Coding Train live
u/iverjo

#heart
u/Galaxtone

Nice job!
u/lionleaf

#valentines

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𭀿𜡥𜰺𨐽𨠽𜀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚀱𞐰𚡢𛀶𜀰𛐱𞐰𚡡𛀱𛀱𚐩𬠽𣑡𭁨𛡲𨑮𩁯𫐨𚐪𞐹𛁛𨐬𨡝👲🀱🱛𜀬𛠱𝠪𨡝𞡲🀸𝠿𦰮𞀵𚡡𚱢𛰲𝐬𛑡𛰲𝐫𛠸𝐪𨠫𜐮𝡝𞡲🀹𜰿𦱡𛰵𛐮𜠶𚡢𛀮𜠳𚡡𚰮𜠲𚡢𚰱𛠶𧐺𦰭𛠱𝐪𨐫𛠲𞀪𨠬𛠲𝠪𨐫𛠲𝀪𨠫𛠴𝁝`.replace(/u../g,'')))

Feb 14 2019 1:28 AM UTC

}// 138/140

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Barnsley #fern #fractal #compressed

Show more comments…
u/pavel

190 for(i=t?2e3:a=b=0;i--;x.fillRect(190*b,600-190*a,1,1))r=Math.random()*99,[a,b]=r<1?[0,.16*b]:r<86?[.85*a+b/25,-a/25+.85*b+1.6]:r<93?[a/5-.26*b,.23*a+.22*b+1.6]:[-.15*a+.28*b,.26*a+.24*b+.44]
u/tomxor

Holy ****
u/katkip

nice
u/metamero

this is beautiful!
u/lionleaf

That's amazing! #leaf
u/vain

Very nice barnsley fern
u/Joachim

#nature #organic

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tomxor

function u(t) {

eval(unescape(escape`眽㤰Ⱪ㵬㵷⩷⼵ⱴ㴱⭴⩴⼱㈻景爨砮晩汬剥捴⠰ⰰⱣ⹷楤瑨㵷⨲ⱷ⨲⤻椭ⴻ砮晩汬剥捴⡘⨶ⱙ⨶ⰱ⭋ⰵ⤩堽椥眯㌬夽椯眬䘽琭椯氬䬽ㄭ䘥ㄬ䬪㴨奞堭繆⤯㈷┱⭋⨪㠬砮晩汬却祬攽恨獬⠤筩⨱㈰紬㤹┬⑻䬪㤹紥⥠`.replace(/u(..)/g,"$1%")))

Feb 14 2019 12:46 AM UTC

}// 140/140

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Trinitron #crt #scanline #fractal

u/tomxor

Finally resorted to UTF8. This is a reasonably accurate slow motion aperture grille scanline animation... Although if run very slow you will see it's not simulating 3 electron beams. t=fps (scanline) w=width (subpixels) the later must be a multiple of 3 and 5. Use X, Y and floored F to plugin your own fractal!
u/tomxor

Uncompressed: w=90,i=l=w*w/5,t=1+t*t/12; for(x.fillRect(0,0,c.width=w*2,w*2);i--;x.fillRect(X*6,Y*6,1+K,5)) X=i%w/3,Y=i/w|0,F=t-i/l,K=1-F%1,K*=(Y^X-~F)/27%1+K**8, x.fillStyle=hsl(${i*120},99%,${K*99}%)
u/sigveseb

Kick-ass!
u/C010011012

bypassing the character limit I see using unicode escapements and regex u r very clever

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anotherkitten

function u(t) {

x.fillStyle=R(a=16+S(t/5)*9,3,30-a,.03)
x.fillRect(0,0,2e3,2e3)
for(i=900;i--;x.clearRect(960+S(i)*(j%90)*20,540+C(i)*(j%90)*30,9,9))j=i+t*t

Feb 13 2019 11:20 PM UTC

}// 140/140

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some sexy spirals in this #waitforit

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pavel

function u(t) {

for(j=t?1e3:a=b=0;j--;x.fillRect(960+450*a,540+450*b,1,1))s=Math.random()<.5?-1:1,A=(Math.hypot(a,++b)+a)/2,b=(b<0?-s:s)*(A-a)**.5,a=s*A**.5

Feb 13 2019 9:09 PM UTC

}// 140/140

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IFS #julia attractor for c=i. Play with adding different constants to a and b in the Math.hypot call

u/pavel

a+=.123,b+=.745 is called Douady's rabbit fractal
u/katkip

How! Amazing
u/13thptr

#fractal

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anotherkitten

function u(t) {

for(c.width|=i=128;i--;x.fill(p=new Path2D,p.arc(i*16,b,Math.abs(S(i/9+t/2)*40),0,8)))x.fillStyle=`hsl(${b=620+C(i/2-t)*90} 70% 40%`

Feb 13 2019 3:36 PM UTC

}// 132/140

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pavel

function u(t) {

eval(unescape(escape`𫐽𚁸𛁹𛁤👡𚡡𚱢𚡢𚐽🡛𨐬𨡝👛𚁹𚡢𚱸𚡡𚐯𩀬𚁹𚡡𛑸𚡢𚐯𩁝𞱦𫱲𚁪👴🰲𩐳𞡡👢👩🐰𛁳🐳𚠪𛠵𞱪𛐭𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𜐴𜀪𨐬𝐴𜀫𜐴𜀪𨠬𜐬𪐫𚰾𜑥𜰩𚑩𩠨𨐽𜐫𬰭𨐬𫐨𜰬𜀩𛁡𚰽𜐭𬰬𬠽𣑡𭁨𛡲𨑮𩁯𫐨𚐪𝀭𜡼𜀩𫐨𛐮𝐬𬠪𬰯𜠩`.replace(/u../g,'')))

Feb 13 2019 4:42 AM UTC

}// 135/140

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Apollonian gasket via an iterated function system

u/pavel

184 m=(x,y,d=a*a+b*b)=>[a,b]=[(y*b+x*a)/d,(y*a-x*b)/d];for(j=t?2e3:a=b=i=0,s=3**.5;j--;x.fillRect(960+140*a,540+140*b,1,i++>1e3))if(a=1+s-a,m(3,0),a+=1-s,r=Math.random()*4-2|0)m(-.5,r*s/2)

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rodrigo.siqueira

remix of d/12312 by u/robbyg

function u(t) {

c.width|=B=(X,Y,A,L,h,v)=>L>7&&(x.lineTo(h=X+C(A)*L,v=Y-S(A)*L),B(h,v,A-t/8,L*.73),B(h,v,A+t/2,L*.73))
B(800,890,1,260)
x.stroke()

Feb 12 2019 10:36 PM UTC

}// 130/140

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Plants, thorns and dragon curves #fractal

u/katkip

Wow! Amazing
u/robbyg

I was hoping someone would come up with something better to do with that function. Awesome! :)

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geb

remix of d/12304 by u/pavel

function u(t) {

for(c.width|=i=20;i--;x.rect(~-r,~-r,2*r,2*r))r=(i-3*t%2)*55,r*=r>0,x.setTransform(1,~0,1,1,0,555),x.rotate(2**-r);x.fill('evenodd')

Feb 12 2019 1:27 PM UTC

}// 132/140

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