Dweets awesomed by u/bepisTM

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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Current theme challenge: #Opposites

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nystrand

function u(t) {

with(x)for(translate(t?S(t):m=993,t?0:540),i=m;i--;fillRect(-m,i+z,3e3,8+z/22))fillStyle=R(z=m/((i*i-t*9)%m),z*3,rotate(-T+(T=i+S(t/9))),.3)

Sep 1 2017 10:41 PM UTC

}// 140/140

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Show more comments…
u/Xen

reminds me of spiderman intro, nice one!
u/cantelope

whaaaaaa
u/sigveseb

Really cool
u/magna

Wow!
u/joeytwiddle

Great!
u/iverjo

Wow!
u/Xen

had to have a play, done remix :)
u/alien

Can some one explain what the with(x) is doing ? please :)
u/lionleaf

Wow! That looks amazing. Love what looks like a white cube that vanishes in the beginning too.
u/nystrand

@alien: with(x) puts x in the scope so that you don't have to write the "x." part of x.fillRect, x.translate etc. So, it only saves bytes if you have more than 3 functions in x you want to call.
u/N0va

Very nice!
u/joeytwiddle

Cyber Fibers
u/katkip

wait wot
u/marc8

Really 3D on a large screen

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cantelope

remix of d/3008 by u/New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(X=Y=0,i=d=350;i--;x.clearRect(X*Z+960,Y*Z+540,Z*4,Z*4))Z=d/(9+d-t*i%d),X+=6*C(a=i/50-9*S(t/8)*S(i/9)),Y+=6*S(a)

Aug 5 2017 5:55 AM UTC

}// 139/140

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just made a few small changes.. loved this one and wanted to see it with colors inverted :D

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New_Core

function u(t) {

for(i=84;i--;)x.fillStyle='hsl('+i*t/9+',99%,50%)',x.rotate(.5173),x.translate(150,-540),x.fillRect(-600+i,-i*11,i*18,i*20)

May 7 2017 7:25 PM UTC

}// 123/140

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lol, Dont look at it to long.. you'll go crazy! ;)

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magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

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Pair programming nightmare

Show more comments…
u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

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scottglz

remix of d/2282 by u/scottglz

function u(t) {

with(Math)for(X=22;X--;)for(Y=16;Y--;x.fillRect(X*67,Y*67,67,67))D=min(abs(X-7.5),abs(Y-7.5)),x.fillStyle=D<1?'#002664':D<2?'#fff':'#ED2939'

Mar 24 2017 10:37 PM UTC

}// 140/140

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This one has the correct proportions of everything and also the exact colors (at least accoring to https://en.wikipedia.org/wiki/Flag_of_Norway)

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thespite

remix of d/2280 by u/thespite

function u(t) {

w=1920,h=1080,c.width=w,d=.5;for(a=-d;a<d;a+=.02)for(b=-d;b<d;b+=.02){x.fillRect((d+a)*w,(d+b+.15*C(10*Math.sqrt(a*a+b*b)-2*t))*h,40,10)}

Mar 23 2017 6:43 PM UTC

}// 137/140

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jczimm

function u(t) {

c.width=1920;for(i=0;i<200;x.fillStyle=R(0,150,i++,1))x.fillRect(960+100*C(t+i)*3,540+100*S(20*t+i)*C(t),20,10+30*T(t/-i))

Mar 13 2017 6:19 PM UTC

}// 122/140

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u/joeytwiddle

#whatisit

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recursive

function u(t) {

t||(g=h=[])
for(n=i=960;--i+n;x.fillRect(i/d+n,(4-g)*99/d,9,99))h[i]=g=(g+h[i-1]+S(n*g)/9)/2||1,x.fillStyle=R(q=3*(t+9)*g,q,q*q>>7),d=1-t/30

Mar 13 2017 4:23 AM UTC

}// 140/140

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Rough surface

u/IV

It's like watching Bob Ross: 'happy little trees; anywhere you feel like...'

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kchplr

remix of d/2012 by u/kchplr

function u(t) {

for(i=99;i--;A=T%6.35,r=30+((T/6.35|0))**1.05*15,r+=S(A+S(T*6))*(r/9+C(T)*5),x.fillRect(960+S(A)*r,540+C(A)*r,2+r/99,2+r/99))T=t*9+i/99

Mar 10 2017 8:31 AM UTC

}// 135/140

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u/jsizzle

Cool!
u/DataMeta

#hiddengem #spiral #topology

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donbright

remix of d/1969 by u/jes5199

function u(t) {

c.width=2e3;g=new Float32Array(1);for(a=192;a;a--)for(b=99;b;b--){C=(a-96)*t;d=(b-54)*t;v=C*C+d*d;g[0]=v;v-g[0]>0?x.fillRect(a*9,b*9,9,9):0}

Mar 9 2017 12:43 AM UTC

}// 140/140

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animating some of jes5199 's circles-and-squares -ish patterns.

u/jes5199

cool! This particular pattern is based on this paper: http://www.cgl.uwaterloo.ca/csk/projects/ali…
u/donbright

thanks for linking that, very very interesting.
u/donbright

#Aliasing

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