Dweets awesomed by u/Smiley1000

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: #ScaryMovies

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davidsover

function u(t) {

for(c.width|=0,x.font="100px A",i=256;i--;)for(j=7;j--;)x.fillText(String.fromCharCode(10240+i),100*(i-j*19-t*2),163*j+75)

Jun 2 2021 6:01 PM UTC

}// 122/140

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Braille Characters

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atgz

remix of d/10010 by u/atgz

function u(t) {

c.width|=i=768;x.transform(1,0,0,1,960,540)
for(i;i--;x.rotate(t/64))x.fillRect(i-=3,i,i/8,i)
x.font=`5em"`
x.fillText((70-t|0)%60,-15,35)

Aug 29 2019 8:15 AM UTC

}// 138/140

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Make this dweet fullscreen, wait for counter to go from 10 to 0, then focus your eyes on the number counting from 60. When the counter goes down to 0, look off from your screen and you will be disoriented

u/joeytwiddle

#illusion

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atgz

remix of d/10578 by u/ersagun

function u(t) {

for(i=j=0,f=24;f--;i+=d("⛤₫⋙⍨⍀⌶⋮⊹⋾⌡⋿⍌⎚⌁⌉⋲⍓⍏⍗⌲⌚⌞⌮⌭"),j+=d(
"◯⊌⋸⋠⋦⌝⌭⍱⌥⍅⌞⊔⋩⌙⌐⌘⌖⌦⌾⌶⌝⌖⌣⌮"))d=a=>C(t*f)*(a.charCodeAt(f)-9e3)
x.fillRect(i,j,9,9)

Aug 27 2019 2:47 PM UTC

}// 140/140

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zanella

remix of d/12556 by u/Ath0r

function u(t) {

c.width|=0
f=(i,j)=>{x.beginPath(),x.lineWidth=j,x.ellipse(960,560,...i),x.stroke()}
f([r=300,r,0,0,7],9)
f([780,99,9+t,1.945,1.195],35)

Feb 28 2019 10:16 PM UTC

}// 136/140

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u/donbright

wheeeeeeee

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zanella

remix of d/10234 by u/Purpzie

function u(t) {

c.width|=0
r=[0,1];for(i=2;i<1e3;i++)r.push(r[i-1]+r[i-2])
x.font='99px"'
x.fillText(r.join(' '),-200*t,500)

Oct 4 2018 5:41 PM UTC

}// 108/140

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Bring back the marquee tag!! #90s

u/donbright

i really like this one for some reason i cant quite put my finger on

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zanella

remix of d/10073 by u/joeytwiddle

function u(t) {

c.width=1920,x.font='20em"'
for(i=-300;i<2e3;i+=99+t)x.fillText('🍹',i,625+200*T(i/15-4*t))

Sep 25 2018 2:58 PM UTC

}// 90/140

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A TANg wave. #rimshot

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zanella

remix of d/6624 by u/Jezza

function u(t) {

c.width|=0;x.font='10em"';!t&&(m=0,n=0);for(i=8e3;i--;){k=(r=Math.random)();l=r();if(k*k+l*l<1)m+=4;n++}x.fillText((m/n).toFixed(15),30,200)

Feb 1 2018 11:56 AM UTC

}// 140/140

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I'm getting slightly obsessed with u/Jezza 's idea. :) Now calculating Pi through a Monte Carlo method: http://mathfaculty.fullerton.edu/mathews/n20…

u/donbright

lol

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zanella

remix of d/6624 by u/Jezza

function u(t) {

c.width|=0;x.font='10em"';!t&&(π=4,k=1,s=1);k+=2;s*=-1;π+=s*4/k;x.fillText(π.toFixed(15),30,200)

Feb 1 2018 11:13 AM UTC

}// 96/140

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Remix of u/Jezza 's cool idea, but using the Gregory-Leibniz Series, just to show how it converges much more slowly.

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zanella

function u(t) {

c.width|=0;x.font='90px arial';!t&&(A=[]);A.forEach(a=>x.fillText(a.t,a.x,a.y+=9));window.onkeypress=e=>A.push({t:e.key,x:t*t*500%1920,y:0})

Jan 22 2018 1:53 PM UTC

}// 140/140

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Click on the canvas and then type things!

u/joeytwiddle

Super!
u/sigveseb

super cool!
u/donbright

:)
u/iverjo

#interactive
u/Friend

I took off 5 characters by moving the Array initialization to the end: c.width|=0;x.font='90px arial';A.forEach(a=>x.fillText(a.t,a.x,a.y+=9));window.onkeypress=e=>A.push({t:e.key,x:t*t*500%1920,y:0})}{A=[]

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