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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veubeke

remix of d/10932 by u/veubeke

function u(t) {

for(c.width|=i=128;i--;x.fillText('🐟',0,0))$=1-i%2*2,x.setTransform($*(_=5+i%5),0,0,_,2000-(i*19+$*t)*i%2080,i*i%1080)

Nov 11 2018 12:13 AM UTC

}// 118/140

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u/f8f82804

#emoji
u/Xen

are they all baby sharks?
u/joeytwiddle

If so, you'd better count your fingers!
u/joeytwiddle

Save the whales :-/ https://twitter.com/RT_com/status/1060321001…

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taupelink

remix of d/22825 by u/taupelink

function u(t) {

for(i=q=250;--i;x.fillRect(q*X*X-i,i*i/9/g-q,q*.6**t,i*.7**t))f=97*i*t,X=f*f%3,Y=X*f%3+1,x.fillStyle=R(q^=i*S(X),i,q=q%(g=3+t+S(Y))*i,.5)

May 22 2021 2:50 PM UTC

}// 137/140

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d/22846

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afs

function u(t) {

x.rotate(.00001);d=t<40&&-t*200*t;x.strokeRect(860+(S(t)*(-100+C(t)))*-3,700+(C(t/6)*(50+C(t)*30+S(t)*30))*.2,d*200,d*200);x.rotate(t/40000)

Oct 3 2019 10:07 AM UTC

}// 140/140

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sigveseb

function u(t) {

s=S(t);r=a=>Math.random()*3|0;for(n=c.width=i=2e3;i--;x.lineTo(n*X/Z,n*U/Z))F=r(),U=1+r(),V=r(),Z=V*C(t)-F*s+9,X=4+s+V*s+F*C(t);x.stroke()

Aug 6 2016 10:31 PM UTC

}// 138/140

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u/iverjo

I admire your mad skills

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taupelink

remix of d/25100 by u/taupelink

function u(t) {

for(m=t?0:2e4;m--;x.fill())r=5e5/m,i=m/30,x.beginPath(x.fillStyle=R(j=m/5%250,h=i*j/(i+j),i/4)),x.arc(960+C(m)/r,540+S(m)/r,(m-h)/r,r,r+3)

Mar 18 2022 1:04 AM UTC

}// 138/140

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d/25142

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magna

function u(t) {

for(c.width|=i=11;i--;x.fillRect(0,y=540+i*50,2e3,y+50))x.fillStyle=R(0,0,0,((t*4e2|0)-i)/99)

Oct 22 2017 6:22 PM UTC

}// 93/140

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[IG] White to black half swipe

u/magna

#ig

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lifthrasiir

function u(t) {

x.fillRect(0,0,2e3,c.height*=.99,x.fillStyle='#800')

Jun 15 2020 2:06 PM UTC

}// 52/140

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The curtain rises

u/lifthrasiir

It should be noted that the negative width or height resets to the default (300x150) but zero is retained.

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pangolin

function u(t) {

t||(a=[9,9],c.onclick=e=>{a=[e.pageX,e.pageY];});c.width=568;z=(S(t)+1)*90;x.strokeStyle=`hsl(${2*z},99%,50%)`;x.arc(...a,z,0,7);x.stroke();

Mar 11 2017 3:49 PM UTC

}// 140/140

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Click.

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katkip

function u(t) {

t||(x.translate(960,540));x.clearRect(0,0,300*C(t),300*C(t));x.fillRect(10,10,300,300);x.rotate(3.1415*2/4)

Apr 25 2019 10:54 AM UTC

}// 107/140

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andrea270872

function u(t) {

for(c.width|=K=k=1e3;k--;z>0&&x.fillRect(K+(k*97/60%11-5)*K/(99-z),500+(k*89/60%13-6)*K/(99-z),8,8))z=(60*t-k)%99

Mar 16 2019 2:32 PM UTC

}// 113/140

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star field (using the forLoop suggestion)

u/Xen

nice