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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function u(t) {

c.width=1920
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t*i)*300,50*i*2,50,200)

Jul 21 2020 2:25 AM UTC

}// 76/140

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noob

u/IV

#default

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DaSpider

function u(t) {

eval(unescape(escape`𪀽𛠵𛁪👨𚠨𪰽𨰮𭱩𩁴𪀽𜑥𜰩𛁡🐮𜠬𨠽𛠸𛁩🐱𝐊𩡯𬠨𦀽𛑩𞱘🁩𞱘𚰽𜐩𩡯𬠨𦐽𛑩𞱙🁩𞱙𚰽𛠲𚑻𒡚👃𚀮𜐪𚁘𚡘𚱙𚡙𛑴𚠪𜠩𚐊𦡅🐭𦀪𨠭𦐪𨠪𨐫𦠪𪀫𜰰𒡸𛡦𪑬𫁒𩑣𭀨𪰪𚀭𦀪𨐫𦐩𛱚𡐫𪠬𪠯𜠭𪰪𚀭𦀪𪀭𦐪𨐪𪀫𦠪𨠩𛱚𡐬𜰬𜰩𯐻`.replace(/u../g,'')))

Jul 21 2020 10:57 PM UTC

}// 134/140

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Iconic AppleSoft plot remastered, animated

u/DaSpider

Source code for reference: https://a2plot-remix.daspider.repl.co/dweet.… AppleSoft image: https://a2plot-remix.daspider.repl.co/apple.…

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Billedluh

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👯𫡭𫱵𬱥𫑯𭡥👥🐾𨰮𨐽𩐮𮐬𨐽𨰮𨐊𪑦𚀡𨐩𮐽𠑲𬡡𮐨𝠩𛡦𪑬𫀨𜀩𛁶👛𛠮𛡹𧐊𮑛𜁝👡𚠳𒡸𛡦𫱮𭀽𘠲𝑥𫐧𘠊𩡯𬠨𪐽𜐻𪐼𝐻𪐫𚰩𬠽𮑛𪑝𚰽𭡛𪑝𚰽𜠫𚀨𨠽𮑛𪐭𜑝𛑹𦱩𧐭𞀴𚐼𜀿𨠯𝐭𭡛𪑝𛰲𞠰𚐬𮀮𩡩𫁬𥁥𮁴𚀧𧁵𮰱𡠹𝡡𯐧𛀵𜀰𛁲𚐻`.replace(/u../g,'')))

Jul 20 2020 12:19 AM UTC

}// 140/140

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Build-A-Wich Workshop

Show more comments…
u/Billedluh

#interactive
u/Billedluh

Hover cursor to start. Self congratulations for Euler integration of differential equations on an arbitrary number of particles in 1 dimension
u/joeytwiddle

Bouncy! Reminding me of d/3504 and https://vimeo.com/178939743
u/Billedluh

hah yeah that seems related.
u/Billedluh

pre compression code, forgot to post
u/Billedluh

c.width|=onmousemove=e=>c.a=e.y,a=c.a if(!a)y=Array(6).fill(0),v=[...y] y[0]=a*3 x.font="25em'" for(i=1;i<5;i++)r=y[i]+=v[i]+=2+((b=y[i-1]-y[i]-84)<0?b/5-v[i]/2:0),x.fillText('\u{1F96a}',500,r)
u/cspray

this is fun!

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davidsover

remix of d/19496 by u/davidsover

function u(t) {

for(i=0;i<34;i++){
x.rotate(0.9)
x.fillStyle=R(255,i * 15,0)
x.fillRect(i*100,400,5,20) 
}

Jul 22 2020 7:38 PM UTC

}// 90/140

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better sun rays

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davidsover

remix of d/19495 by u/davidsover

function u(t) {

for(i=0;i<34;i++){
x.rotate(0.9)
x.fillStyle = R(255,i * 15,0);
x.fillRect(i*100+S(t),400,5,20) 
}

Jul 22 2020 7:28 PM UTC

}// 98/140

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davidsover

function u(t) {

for(i=0;i<34;i++){
x.rotate(0.9)
x.fillRect(i*100+S(t),400,5,20) 
}

Jul 22 2020 7:24 PM UTC

}// 67/140

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rings

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remix of d/19463 by u/Billedluh

function u(t) {

x.font="30em'",x.fillRect(0,0,w=2e3,w),t*=2
for(i=1;i<5;i++)x.fillText('👻👻',100*t%w+500*C(t+5*i)-300,700+15*(7*S(t*i)))

Jul 21 2020 4:03 AM UTC

}// 119/140

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#text

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Billedluh

remix of d/19432 by u/Billedluh

function u(t) {

x.font="23em'",x.fillRect(0,0,w=3e3,w),t*=4
for(i=0;i<3;i++)x.fillText('🥞',40*t%w+20*C(t-i)-600,300+25*(S(t)-5)*(4+i)+1100),x.fillStyle=R(0)

Jul 20 2020 3:21 AM UTC

}// 140/140

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mmmmmmmmmm pancakes

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rodrigo.siqueira

remix of d/19448 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=5e3;i--;){var X=S(i*i),Y=C(i-t),Z=X*X+Y*Y*2;x.fillRect(980+300*(Z*S(i+t)),500-150*Y*(S(Z+i)*3)-Y,7,7)}

Jul 19 2020 4:26 PM UTC

}// 123/140

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Symmetry ribbon dance

u/andrea270872

I see! The famous butterfly effect! ;) ;) (sorry for the joke... terrific dwit)

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taupelink

remix of d/19370 by u/taupelink

function u(t) {

f=(x,y)=>C(x)>S(y*y)?f(y/x,x+1):T(x-y);for(i=k=960;i--;)X=(r=Math.random)()*k,Y=r()*6.3,x.fillRect(k+X*C(Y),540-X*S(Y),f(X&k,Y)>f(Y,k/X),1)

Jul 19 2020 4:18 AM UTC

}// 139/140

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d/19453

u/donbright

the longer i wait the cooler this gets