Dwitter - javascript demos in 140 characters

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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Xen

remix of d/14946 by u/SamuelHoward

function u(t) {

for(c.width=i=1e3;i--;)
x.fillRect(-1e3+i*9+S(t)*1e3,99+S(t+i/(t%99))*99,6,i+50*S(i*t))

Jul 8 2019 10:15 AM UTC

}// 87/140

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loved the original, had to remix

u/SamuelHoward

Very Cool!
u/Xen

thanks :-)

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firegodjr

remix of d/8983 by u/firegodjr

function u(t) {

c.width|=0
with(x)for(i=1e3;i--;stroke(),beginPath(lineWidth=70))arc(960,540,i^(t*300%600),i/100,i/100+.03)

Jul 8 2019 5:54 PM UTC

}// 107/140

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Shatter

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katkip

remix of d/14942 by u/katkip

function u(t) {

c.width*=1;for(j=299;j--;){for(i=3;i--;)x.beginPath(),x.arc(960+i*200*T(t+i),540+S(t+i)*299,999/j,0,7),x.stroke()}

Jul 7 2019 9:42 AM UTC

}// 114/140

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2 black holes avoiding another black hole

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Xen

remix of d/14933 by u/username

function u(t) {

x.drawImage(c,0,7);for(j=2e3;j--;x.fillRect(j,0,j,7))x.fillStyle=`hsl(${2e2*t^j},61%,50%)`

Jul 7 2019 9:35 PM UTC

}// 90/140

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#rainbow #xor

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username

remix of d/13029 by u/username

function u(t) {

t*=9
for(i=3e3;i--;x.fillStyle=`hsl(${t*42},54%,50%`)K=(i&2)-t*t/i,X=S(i)+S(i)*K/t*9,Y=C(i)-C(i)*K/t*9,x.fillRect(960+X*150,640+Y*150,8,8)

Jul 6 2019 8:05 PM UTC

}// 138/140

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u/magna

Psychedelic!

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taupelink

remix of d/14619 by u/taupelink

function u(t) {

for(i=w=2e3;i--;){X=(r=Math.random)()*w,Y=i*i/w/4
x.strokeStyle=`hsl(${X/40-60*C(t/3)+240},90%,${Y/8}%)`
x.strokeRect(X,w/2-2*Y,s=r()*99,4)}

Jul 6 2019 2:48 AM UTC

}// 140/140

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color oscillation thing

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katkip

function u(t) {

eval(unescape(escape`𩡯𬠨𪠽𜠱𞱪𛐭𞰩𩡯𬠨𪐽𜠲𞱩𛐭𞰩𮱸𛡢𩑧𪑮𤁡𭁨𚀩𛁸𛡦𪑬𫁓𭁹𫁥👒𚀩𛁸𛡡𬡣𚁩𚠹𜀬𜰰𚱪𚠵𜀬𪠪𝐬𜀬𝰩𛁸𛡦𪑬𫀨𚐻𮀮𩡩𫁬𤱴𮑬𩐽𙱷𪁩𭁥𙰻𮀮𨡥𩱩𫡐𨑴𪀨𚐬𮀮𨑲𨰨𪐪𞐰𚰴𝠬𝀵𜀫𪠪𝐰𛁪𚠵𛀰𛀷𚐬𮀮𩡩𫁬𚀩𯐠`.replace(/uD./g,'')))

Jul 7 2019 9:21 AM UTC

}// 129/140

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that manga effect

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nystrand

function u(t) {

for(i=c.width|=g=(o,a,b,z=a%b)=>n--?g(2*t/n+i%3,b*C(o)-a*S(o)-n,z,a*C(o)+b*S(o)):x.fillRect(a*(z+=40)+960,b*z+500,z-=24,z);i--;)g(i,n=6,i%7)

Jul 3 2019 12:40 PM UTC

}// 140/140

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Show more comments…
u/Xen

love it!
u/katkip

hot
u/KilledByAPixel

👍
u/PorkToTheFuture

impossible
u/aleamb

great! superb! dude!
u/iverjo

#d3
u/vain

fucking kewl

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑲👟🐾𤰨𞐪𭀪𚡮𚰫𯀰𚐬𨡥𩱩𫡐𨑴𪀨𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮰨𭀪𝀮𝁼𜀩𚠱𜠰𚰶𜀫𬠨𫠽𜰩𚠹𯐠𞐹𙐤𮰶𝐫𝐪𬠨𬱨𨑤𫱷𠱯𫁯𬠽𘠣𜀰𜀢𚑽𙑠𚐬𨑲𨰨𞐶𜀫𜠹𚡴𚡓𚀹𚡴𚐫𭀪𬠨𬱨𨑤𫱷𠡬𭑲👴𚐬𝐴𜀫𜠹𚡴𚡃𚀹𚡴𚐫𭀪𬠨𚐬𜐹𚰲𚡴𛀰𛀷𚐬𩡩𫁬𚀩`.replace(/u../g,'')))

Jul 5 2019 9:45 PM UTC

}// 140/140

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Code Sketch based on https://www.reddit.com/r/generative/comments…

u/Xen

love it, nice texture!
u/iverjo

Yes! Very nice in fullscreen

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taupelink

remix of d/14855 by u/taupelink

function u(t) {

c.width=500;p=37;a=(t|0)%(p-1)+1;for(n=0,m=a;++n<=p;m*=a,m%=p)x.fillStyle=R((n-1)%(p-1)?0:255,0,(n-p+1)?0:255),x.fillText(n,12+m*12,7+n*7)

Jul 6 2019 6:29 PM UTC

}// 138/140

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Powers of a=1, 2, 3, ..., 36 modulo 37, arranged in rows. The 36th power is always 1; the 37th is a.

u/taupelink

#math #numbertheory Fermat's little theorem https://en.wikipedia.org/wiki/Fermat's_l…
u/DataMeta

Cool!