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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joeytwiddle

remix of d/11549 by u/joeytwiddle

function u(t) {

for(R=Math.random,i=700;i--;x.fillRect(960+r*C(a),80+y+r/9*S(a),.2,.2))y=896*R(),T=y>768,r=T?30:(y|127)*(y*S(y/300)-2*y%128)/1313,a=9*R()

Dec 25 2019 2:02 PM UTC

}// 137/140

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A quick and dirty Merry #Christmas #tree mix

u/katkip

Awesome!
u/Xen

nicely
u/iverjo

Great!
u/joeytwiddle

I originally felt a little ashamed to post because the distribution of dots is not uniform, hence "dirty", but your kind comments have reminded me that nobody really cares. Indeed, bugs like this can even give an image more character than perfection would. Thanks! 🙏

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dsc0rd

function u(t) {

c.width|=0;
let i,j;
for(j=0;j<1080;j+=19)
for(i=0;i<1920;i+=10)
x.fillRect(960+j*S(i)/T(t),540+i*C(j)*T(t),8,8);

Dec 28 2019 11:00 AM UTC

}// 113/140

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Testing

u/joeytwiddle

Squidgy

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viberfoner

remix of d/16876 by u/katkip

function u(t) {

with(x)for(i=j=360;i--;beginPath(fill(arc(
960+C(t+i*6)*j,
540+S(t+i*6)*j,
Math.abs(C(t+i*9)*100),0,7))))fillStyle=R(i*i,i)

Dec 25 2019 5:33 PM UTC

}// 123/140

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bleb

u/Xen

hail blebs!
u/joeytwiddle

#bleb

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LimeLaser

function u(t) {

for(i=768;i--;){p=(61*window.p+53)%2304+1||1
X=--p%64
Y=p/64|0
x.fillStyle=`HSL(${180*S(X)*S(Y)+t*t},75%,50%)`
x.fillRect(30*X,30*Y,30,30)}

Dec 26 2019 7:13 AM UTC

}// 139/140

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64x36 20FPS Random Sampling Renderer

u/LimeLaser

My attempt to implement per-pixel rendering at interactive rates. Using a Linear Congruential Generator, the pixels to render are chosen psuedo-randomly. It takes 3 frames to render all 2304 pixels, so the actual FPS is 20.

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McNoodle

function u(t) {

x.font="40px a";x.fillText(arguments.callee,40,40);

Dec 26 2019 1:43 PM UTC

}// 51/140

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A quine

u/Xen

mulled quine? ;-)
u/katkip

interesting

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tomxor

remix of d/16192 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀽𝠰𛁩🐲𩐳𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𤠽𪐥𭰬𥀽𪐯𭰬𜐬𛠴𛑚𛱷𚐩𩡯𬠨𪠽𞀬𦠽𭰻𪠭𛐻𚑚𛐽𣑡𭁨𛡭𪑮𚀮𛠮𦱛𭀪𭰬𛠲𧐬𦰲𜀬𝑝𛁛𞐬𜱝𛁛𞐱𛁷𧑝𛡭𨑰𚀨𦱹𛁲𧐬𪐩🐾𣑡𭁨𛡨𮑰𫱴𚁩🱒𛐳𜀺𚁔𚱒𛑹𚐥𜰲𚰹𛁩🱔𛑹𞠨𥀭𤠭𮐩𙐴𞀫𞐬𦠩𛑲𚐩`.replace(/u../g,'')))

Dec 24 2019 1:40 AM UTC

}// 140/140

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Merry Dwittermass Everyone :)

Show more comments…
u/tomxor

Better shading + faster in firefox
u/KilledByAPixel

👍
u/Xen

now thats sexy..., thats a sexy snowman! made me grab the DVD now! back shortly...
u/katkip

awesome!
u/katkip

#witchcraft
u/tomxor

#xmas

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viberfoner

remix of d/16876 by u/katkip

function u(t) {

a=67
with(x)for(fillRect(0,0,2e3,2e3),i=j=360;i--;beginPath(fill(arc(
960+C(t+i*a)*(j*2-i),
540+S(t+i*a)*(i),
i/12,0,7))))fillStyle=R(i*i,i)

Dec 25 2019 4:59 PM UTC

}// 140/140

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First dweet! One of many variations I came up with

u/joeytwiddle

Very nice #loop

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katkip

function u(t) {

eval(unescape(escape`𭁼𯀨𮀮𭁲𨑮𬱬𨑴𩐨𞐶𜀬𝐴𜀩𚐻𨠽𤰽🡻𩡯𬠨𪐽𜐰𞱩𛐭𞰩𩡯𬠨𪠽𜐰𞱪𛐭𞰩𮀮𩡩𫁬𤱴𮑬𩐽𚁩𙐲𚑞𚁪𙐲𚐿𘠣𜀰𜀢𞠢𘱦𩡦𘠬𮀮𩡩𫁬𤡥𨱴𚁩𚡓𛁪𚡓𛁓𛱴𛁓𛱴𚑽𞱢𚁃𚁴𚐪𝀰𚐻𨠨𤰨𭀪𝀩𚠲𜀩𞱸𛡲𫱴𨑴𩐨𛠰𜐩`.replace(/uD./g,'')))

Dec 26 2019 2:38 PM UTC

}// 125/140

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just playing

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katkip

function u(t) {

c.width=200;c.style.background=R();x.fillStyle='lime';x.fillText("> "+(q="throw`merry xmas`").slice(0,(z=frame)%42),20,20);eval(q)//ho ho ho

Dec 25 2019 8:00 AM UTC

}// 140/140

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#console #terminal #xmas

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cem

remix of d/16972 by u/yonatan

function u(t) {

c.width*=1;x.font='17cm"';x.fillText('🤓',650,800);x.font='2cm"';for(j=99;j--;)x.fillText('🍔',930+700*C(j+t/8),600+S(t+C(t+t/9+j-t)-j)*300)

Dec 26 2019 1:17 PM UTC

}// 138/140

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Hello Dwitter

u/Xen

Ayup dude...