Dweets awesomed by u/scottglz

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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_nderscore

function u(t) {

x.strokeStyle=`hsl(${r=t*20%360},99%,50%)`,x.lineWidth=15,x.lineTo(S(t)*t*5+960,C(t)*t*5+540),x.stroke(),c.style.transform=`rotate(${r}deg)`

Mar 1 2017 2:34 AM UTC

}// 140/140

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bligglenuber

function u(t) {

c.width=198;a=6+C(t/9)
for(i=-99;i<99;i+=a)for(j=-56;j<56;j+=a)k=i*j,f=k*k*(1+C(t)),x.fillStyle=R(f,f/9),x.fillRect(99+i,56+j,a*S(k),a*C(k))

Feb 28 2017 2:00 PM UTC

}// 140/140

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I prefer this with a slower cycle by having t/99 instead of 9, but I couldn't find another place to drop a character

u/iverjo

You could move f= inside R, like this: c.width=198;a=6+C(t/9) for(i=-99;i<99;i+=a)for(j=-56;j<56;j+=a)k=i*j,x.fillStyle=R(f=k*k*(1+C(t)),f/9),x.fillRect(99+i,56+j,a*S(k),a*C(k))
u/bligglenuber

Ah, good shout, thanks

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scottglz

remix of d/1516 by u/scottglz

function u(t) {

w=c.width=255;h=144;d=c.d=t&&c.d||x.getImageData(0,0,w,h);for(i=0;i<w;i++)d.data[~~(i*t*t)]=i;x.putImageData(d,0,0)

Feb 27 2017 11:57 PM UTC

}// 115/140

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scottglz

function u(t) {

w=c.width=255;h=144;d=x.getImageData(0,0,w,h);b=d.data;for(i=3;i<w*h*4;i+=4,b[i]=C(i/(t%6+29))*w+h,b[i-2]=C(t)*i/w );x.putImageData(d,0,0)

Feb 27 2017 10:36 PM UTC

}// 138/140

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mfk

function u(t) {

c.width=1920;for(i=1;i++<10;){z=S(i*t);y=C(i*t);x.arc(960+100*z,540+100*y,(20*t+S(t)),0,2*Math.PI);x.stroke()}

Feb 27 2017 9:13 PM UTC

}// 110/140

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u/donbright

clever!

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SpecialAgent

function u(t) {

w=200,c.width=w,x.C=x.C||x.getImageData(0,0,w,w),x.Q=x.Q||.5;x.Q+=1e-5
for(i=w*w*3;i--;)x.C.data[i]=255*S(t+i*x.Q);x.putImageData(x.C,0,0)

Feb 27 2017 6:09 AM UTC

}// 138/140

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scottglz

function u(t) {

x.transform(1.01,-.001,.001, 1.01,-.5,-.5);b=(S(t*4)*50)+99; x.fillStyle=R(b,b,b);(''+u).split(' ').forEach((v,i)=>x.fillText(v,16,58+i*10))

Feb 24 2017 11:53 PM UTC

}// 140/140

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u/Lazy1337

#quine

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

W=c.width=255;for(i=9<<12;a=i&W,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(W*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Feb 24 2017 12:35 AM UTC

}// 140/140

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Based on some of 3b3lgamer's stuff (remix link got broken).

Show more comments…
u/donbright

dude you are the king,.. O M GOSH
u/Renaud___

Fantastic :S
u/lionleaf

Fixed the remix link for ya :)
u/nashcat

holy sh*t
u/Kalanchoe

H...how? This is so impressive.
u/magna

Needs more music.
u/xem

inhuman
u/donbright

still the one that blew my mind the most.
u/lionleaf

#wobble #wobbly #water #mirror #checkerboard #refraction #sphere
u/Xaotic

wtf
u/firegodjr

#raytracing #best
u/stiaje

#witchcraft
u/sigveseb

This one used to be fast, wonder why it is slow now?

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andy

function u(t) {

a=b=>S(t*b)*128+128
x.fillStyle=R(a(1.3),a(3),a(2))
x.fillRect(S(t*3)*960+960,C(t*2.5)*539+539,10,10)
x.drawImage(c,S(t)-2,C(t)-2,1924,1084)

Feb 23 2017 10:30 AM UTC

}// 140/140

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Show more comments…
u/magicmarc

First line as "a=b=>128*(S(t*b)+1)" brings this to 140.
u/andy

Thanks, that's right. Didn't even realize i was over 140 :)
u/lionleaf

Are you seeing over 140 characters? On chrome it says 140/140 at least.
u/andy

weird, yesterday it said 143.
u/michelinux

It's probably because on Windows the new line takes 2 characters ('\n\r'). Use ';' instead of new line and you should have a more consistent behaviour.
u/andy

still weird, i don't have any windows machines.
u/SpecialAgent

the simplicity of that zoom blows my mind, great work!

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