Random dweets | Dwitter

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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andrea270872

function u(t) {

c.width|=c.onmouseup=_=>{B=-B}
if(t==0)A=B=1
A+=B*.033
for(i=1e3;i--;)x.fillRect((A*2+i)%40*40,~~(i/40)*43,20,i%9)

Mar 24 2019 11:55 AM UTC

}// 114/140

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click to rewind

u/andrea270872

#interactive

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xem

function u(t) {

c.width^=0;for(i=0;i<10;i+=.5)for(j=0;j<10;j+=.5)x.arc(900+400*S((i+t/9)*3.14)*C(j*1.57),500+400*S(j*1.57),5,0,6);x.fill()

Oct 21 2017 7:12 AM UTC

}// 122/140

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This is totally not what I wanted to do :)

u/xem

Sphere<3
u/xem

(see remix https://www.dwitter.net/d/3325)
u/iverjo

#sphere

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magna

function u(t) {

quine





= 1
x.font='6em"'
x.textAlign='center'
x.fillText('quine',960,560)

Jan 5 2024 6:12 AM UTC

}// 77/140

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#quine

u/lewdev

Ha, I see what you did there

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ciaccodavide

remix of d/20700 by u/ciaccodavide

function u(t) {

c.width|=1
P=C(t*4)*99
for(i=0;i<9;i++)
x.fillRect(400+i*100+(i===0&&P>0?-P:i===8&&P<0?-P:0),400,50,200)

Nov 19 2020 8:34 AM UTC

}// 104/140

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Newton's cradle #default

u/ciaccodavide

#newtonscradle

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fredwulei

function u(t) {

c.width|=0;for(k=0;k<8;k++)for(i=0;i<15;i++)if('筯቉珧珏寉秏积牉篯篏'.charCodeAt((t+'').charCodeAt(k)-48)&1<<14-i)x.fillRect(k*36+i%3*9,(i/3|0)*9,8,8)

Feb 23 2017 3:54 AM UTC

}// 140/140

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u/donbright

can i guess how? did you pack the shapes for numerical digits into UTF8?
u/fredwulei

yes, digits are in 3 by 5, so I use unicode to represent the shape
u/aemkei

Nice! Did something like that here: https://gist.github.com/aemkei/1272408

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BriSeven

function u(t) {

c.width=1920;for(i=0;i<16;i++){x.fillStyle=(i*0x775511).toString(16).slice(-6);x.fillRect(i*160+S(t)*300-300,0,160,12000)}

Dec 20 2016 2:28 AM UTC

}// 123/140

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zensaiyuki: I found this trick for generating a 16 color palette: i*0x775511. i wonder if it can be made smaller in javascript.

u/iverjo

Neat. To begin with, you can replace 0x775511 with 7820561. Further, you can look into bit operations or modulo to truncate/slice the string

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sawaxon

function u(t) {

c.width|=0;x.fillRect(99,410,1739,400);x.fillStyle='#fff';x.font='290px a';h=Date();i=15;while(i--)x.fillText(h[i+15],i*200,740+T(t/2*-i/2))

Mar 10 2018 12:04 PM UTC

}// 140/140

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veubeke

remix of d/8381 by u/andc2600

function u(t) {

c.width=W=1920
for(i=0;i<3;x.fillStyle=i<2?'#c00':'#fc0')
x.fillRect(0,i++*360,W,360)
x.font='250px"'
x.fillText('💩',W/2-120,640)

Jun 4 2018 10:30 AM UTC

}// 129/140

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u/andc2600

fixed very well

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Yogeshp3

remix of d/6174 by u/jy1989

function u(t) {

r=(x)=>(5*x*t%255)

x.fillStyle=R(r(1),r(2),r(3))
x.fillRect(6*t+150*S(t),T(t)*150+540,10,10)
x.fillRect(T(t)*150+960,6*t+150*S(t),10,10)

Jan 19 2018 11:06 AM UTC

}// 137/140

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rodrigo.siqueira

remix of d/28011 by u/flockaroo

function u(t) {

for(i=c.width|=0;i--;x.lineTo(X-400,Y+w+3e4/i))for(X=Y=w=3;w<290;w*=3)A=(i+t*w)%w-w/2,X+=i/4+A*C(D=1-A*A/w/w*4)+Y*S(D)-A,Y-=A*S(D)
x.fill()

Jun 19 2023 2:27 PM UTC

}// 139/140

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#waves variation #uncompressed