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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yonatan

function u(t) {

for(i=1e3;t<3&&i--;x.fillRect(960+S(i)*q,(1200/t)+C(i)*q,9,9))q=(2+S(i*6)**3)*t**4.5,x.fillStyle=R(a=t**1.6*55,a*1.5,t*t*15)

Aug 28 2018 11:00 PM UTC

}// 124/140

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Show more comments…
u/joeytwiddle

Excellent! Angel's trumpet. #flower #organic
u/yonatan

Thanks! I was wondering what's that tree's name was
u/katkip

This is so beautiful
u/magna

OMFG
u/aleamb

OH MY!!!!
u/DataMeta

#wizardry
u/13thptr

#witchcraft

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f8f82804

remix of d/9542 by u/f8f82804

function u(t) {

for(U=V=0,z=i=64;i--;)for(j=z;j--;x.fillRect(16*i+448,16*j,16,16))U+=i+S(t),V+=j+C(t)/9,x.fillStyle=R(U>z?(U-=z,255):0,V>z?(V-=z,255):0,255)

Aug 31 2018 5:05 PM UTC

}// 140/140

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#outrun #palette #dithering #animated

u/f8f82804

the palette that's being rendered in 4 colors: for(z=i=64;i--;)for(j=z;j--;x.fillRect(16*i+448,16*j,16,16))x.fillStyle=R(i*4,j*4,255)

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anotherkitten

function u(t) {

for(i=0;i<5e3;i+=63){e=t+i/t
o=990+C(e)*i/3
p=550+S(e)*i/5
x[w="fillStyle"]="#e4b6"
x[q="fillRect"](o,p,20,60)
x[w]="#2ff8"
x[q](o,p,20,30)}

Aug 31 2018 10:01 PM UTC

}// 140/140

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#waitforit

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yokljo

function u(t) {

c.width|=g=400
x.translate(g,g)
for(i=40;i--;)x[f="fillRect"](190,i*50+t*g%40,9,9)
for(;i++<g;x[f](30,0,7,350+(i%22)*2))x.rotate(i?1/63:t*2)

Aug 31 2018 1:32 PM UTC

}// 140/140

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I played Half Life 2 recently...

u/aleamb

lol! cool
u/joeytwiddle

#blood #saw #tribute

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Exca

function u(t) {

for(i=0;i<5184;i++){q=i%96,w=i/96|0
y=S(q*C(t)/5+w*S(t)/6)*t*9
o=S(q/7+w/4)*t*9
x.fillStyle=R(y^o,y|o,y+o+199)
x.fillRect(q*20,w*20,20,20)}

Aug 31 2018 12:12 PM UTC

}// 139/140

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Fixed previous one. Wait for a few seconds for effect to start.

u/magna

#waitforit

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katkip

function u(t) {

c.width^=0;for(i=0;i<9;i++)
x.transform(1,0.5,-0.5,1,30,10),x.fillRect(0+i*2+S(t)*300,400,50,200)

Sep 1 2018 12:07 PM UTC

}// 97/140

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Hide and seek #default

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katkip

function u(t) {

for(i=0;i<1080;i++)x.fillStyle=`hsl(${(i)**2+i},99%,50%)`,x.fillRect(0,i,T(t*i)/250,T(t*i)/250)
x.drawImage(c,1,T(frame*i)/2)

Sep 1 2018 11:37 AM UTC

}// 125/140

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glitched

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username

function u(t) {

c.width-=0
for(i=0;i<40;i++)with(x)shadowBlur=99,shadowColor=`hsl(${(i+C(t)/9)**3*3},99%,50%`,fillRect(i*100+S(t)*999-992,400*C(t),51,999)

Aug 31 2018 9:39 PM UTC

}// 138/140

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#default glow sticks

u/joeytwiddle

They twinkle a bit on the far right, and a lot on the far left

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BirdsTweetCodersDweet

function u(t) {

for(i=0;i<9;i++)x.fillStyle=R(a=S(t)*127+127,a,a),x.fillRect(400+i*100+S(t)*300,400,50,200)

Sep 1 2018 8:11 PM UTC

}// 91/140

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Ghost#

u/BirdsTweetCodersDweet

Ghost #default

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katkip

function u(t) {

c.width=500-t*40;p=0
for(i=0;i++<500;)for(j=0;j++<500;)x.fillStyle=`hsla(${p%i+p%j},99%,50%)`,x.fillRect(i-1,j-1,1,1),p++

Aug 31 2018 12:03 PM UTC

}// 121/140

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#3D #infinite #scrolling floor. may be slow on cheap pcs. on mine works perfect lol