Dweets awesomed by u/xem

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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xem

function u(t) {

x.fillRect(t,t,t,t)

Dec 27 2017 7:02 PM UTC

}// 19/140

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quest for the smallest aimated dweet, top 2: 19b

u/BuRRak

x.fillText(t,t,t)
u/joeytwiddle

#challenge

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snail

function u(t) {

x.transform(540,0,0,540,(c.width=1920)/2,540);
for(i=-t,n=20;n--;i+=t/8)
x.lineTo(C(i), S(i));
x.fill("evenodd");

Dec 26 2017 10:19 PM UTC

}// 113/140

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u/sigveseb

starts of basic then gets pretty cool
u/lionleaf

It gets cooler and cooler the longer you wait!
u/vain

i love it

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xem

remix of d/3508 by u/Xen

function u(t) {

t||(U=Y=1);for(i=1e4;i--;)x.fillStyle=R(0,0,0,.01),x.fillRect(999+99*(X=-6.56*S(1.4*U)-S(1.56*Y)),500+99*(Y=1.4*C(1.4*U)+C(1.56*Y)),1,1),U=X

Nov 12 2017 9:08 PM UTC

}// 140/140

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u/Xen

Donut!!!!! :D

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Xen

function u(t) {

x.font='600px X',Z=590,x.fillText('👽',Z,Z),x.globalCompositeOperation='xor'
x.drawImage(c,C(t*Z)*t*t%Z,S(t*Z)*t*t%Z)

Nov 10 2017 11:48 PM UTC

}// 116/140

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Your Mind Is Mine!

u/cantelope

D:
u/joeytwiddle

On my Mac, 256px is the largest font size that works. Spooky mystery.

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wiledal

function u(t) {

c.width=1920;
['🍎','🐛'].map((s,i)=>{y=200-i*100;x.font=`${y}px sans-serif`;x.fillText(s,900+S(t-i/2)*450,640+C(t-i/2)*450)})

Nov 8 2017 3:25 PM UTC

}// 124/140

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u/magna

LOL
u/f8f82804

#emoji

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Xen

remix of d/1201 by u/bligglenuber

function u(t) {

x.fillStyle=`hsl(${(t*=5e2)/2},80%,50%)`
x.globalCompositeOperation='difference'
x.fillRect(t%1920,t%1080,9,9)
x.drawImage(c,0,9)

Nov 3 2017 8:09 PM UTC

}// 129/140

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it's raining rainbow sierpinski triangles!

u/zanella

I just did https://www.dwitter.net/d/4677, but yours kicked the hell out of mine. :D
u/Xen

thank you :-)
u/f8f82804

#rainbow #fractal

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mmastrac

remix of d/3451 by u/mmastrac

function u(t) {

f=e=>300*Math.asin(C(t*e))+480;for(e=c.width|=onmousemove=e=>A=e.y/innerHeight*1e3;e--;)x.fillRect([f(5),0,944][e]*2,e^1?f(3):A,32,e?256:30)

Nov 2 2017 10:07 PM UTC

}// 140/140

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Move the mouse over the canvas to start!

u/magna

Fix for the "A is not defined" error: Use an existing var like T instead of A: https://www.dwitter.net/d/3455
u/Cloud

Cool! :D

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cantelope

remix of d/3392 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=(w=1e3)*2,i);i--;x.clearRect(w+(i%1e3-w/2)/120/(Z=3+C(p))*w,540+S(p)/Z*w,s=250/Z/Z,s))p=i/80+C(t/2)*12+(i>1e3?3.1:0)

Oct 28 2017 6:48 AM UTC

}// 137/140

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cantelope

function u(t) {

for(w=(c.width|=i=2e3)/2;i--;x.fillRect(w+(i%1e3-500)/120/(Z=3+C(p))*w,540+S(p)/Z*w,s=250/Z/Z,s))p=i/79.6+C(t/2)*12+(i>1e3?3.1:0);x.stroke()

Oct 28 2017 5:57 AM UTC

}// 140/140

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doh. left x.stroke() in there by mistake.

u/katkip

#curve

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Xen

function u(t) {

for(X=i=400;i--;x.fillRect(899+C(i^t)*i*i,X+S(i*t)*i*i,1,i))x.fillStyle=R(frame*2%X,0,S(t)*X);x.drawImage(c,-1,-1,1922-C(t*2),1082+S(t))/XEN

Oct 25 2017 6:26 PM UTC

}// 140/140

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Cosmical!!!

u/mmastrac

<3 this
u/sigveseb

very space oddessey
u/Xen

Thanks :)

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