Dweets awesomed by u/sfz

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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max

function u(t) {

var i=new Image();i.src="https://goo.gl/skWdJw";i.onload=()=>{var p=x.createPattern(i,'repeat');x.fillStyle=p;x.fillRect(0,0,1920,1080)}

Feb 23 2017 6:18 PM UTC

}// 136/140

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iverjo

remix of d/464 by u/iverjo

function u(t) {

for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}

Feb 23 2017 5:10 PM UTC

}// 126/140

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Burning ship fractal. Feel free to play with the parameters to find other interesting locations in the fractal

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SingingGoat

remix of d/1023 by u/SingingGoat

function u(t) {

x.fillStyle=R(300*C(t),300*S(t),200+S(t));x.fillRect(935+400*S(2*t),540+225*C(t),20,200);x.shadowBlur=20;x.shadowColor="#000";σγ

Feb 23 2017 4:22 PM UTC

}// 128/140

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travis

remix of d/962 by u/travis

function u(t) {

for(i=0;i<23;i++) { //fun2
x.fillStyle=R(i*10,S(t)*50+100,C(t)*50+100,0.69);
x.fillRect(51+i*75+C(t)*300, (C(t*i*0.29)*500)+550, 47, 47);
}

Feb 23 2017 3:44 PM UTC

}// 139/140

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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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walsh9

function u(t) {

O=[],Z=z=>R(y=255*S(z/32),y,y+128);for(i=1e4;i--;)d=i%128*15,e=i/128|0,x.fillStyle=Z((S(d/64)+S(e/4)+t)*99),x.fillRect(d,e*16,16,16)

Feb 23 2017 2:55 AM UTC

}// 132/140

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u/donbright

love the color scheme
u/walsh9

whoops left some junk at the beginning. not even using that array.
u/iverjo

Beautiful
u/sigveseb

Very pretty
u/Kalanchoe

Trippy yet so relaxing

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sfz

function u(t) {

for(l=0,a=t*5e2,z=9,j=1e3,k=2e3,d=a%z,v='stroke';l<9e2;l+=7){x.beginPath();x[v+'Style']=R(l/d,l,l*d);x.arc(S(l)*a%k,C(l)*a%j,l,0,7);x[v]()}

Feb 23 2017 12:44 AM UTC

}// 139/140

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Oops, could have saved 8 more chars

u/iverjo

Playful :)
u/Qwitter

that is a stable style

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Ameo

remix of d/933 by u/p01

function u(t) {

for(d=2e3;d--;x.fillRect(970+d*C(a),540+d*S(a),18,6))a=Math.random()*7,x.fillStyle=R(e=4e3*C(t-16e2/d*S(t-a-C(a/d))),99*S(a-e/d),6e4/d)

Feb 23 2017 12:05 AM UTC

}// 135/140

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u/iverjo

Cool!

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jczimm

function u(t) {

c.width=1920;for(i=0;i++<300;)for(j=0;j++<6;x.fillStyle=R(0,0,0,j/8))x.fillRect(960+200*C(i)*S(T(t/-1.1)+j/i),540+200*S(i),10,10);

Feb 22 2017 11:49 PM UTC

}// 130/140

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added opacity

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p01

function u(t) {

for(d=2e3;d--;x.fillRect(960+d*C(a),540+d*S(a),24,24))a=Math.random()*6.3,x.fillStyle=R(e=255*C(t-1e3/d*S(t-a-C(a*99/d))),99*S(a-e/d),6e4/d)

Feb 22 2017 11:45 PM UTC

}// 140/140

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u/sigveseb

Nice!
u/ninerdelta

wow!
u/p01

Thanks :)
u/ArtsyBiker1

Awesome!
u/TheGreatRambler

Messing with my brain!
u/lionleaf

#tunnel

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