Top dweets by u/zanella

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: #ScaryMovies

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zanella

remix of d/6048 by u/staberinde

function u(t) {

x.fillStyle='#fff1'
x.fillRect(0,0,2e3,1e3)
x.fillStyle=R()
for(i=361;i--;)
x.fillRect(C(i)*i*C(t*i/360)+960,S(i)*i*C(t*i/360)+540,10,10)

Jan 17 2018 12:41 PM UTC

}// 137/140

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Adding some trail effect. ;)

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zanella

remix of d/5860 by u/zanella

function u(t) {

m=h=960;n=v=540;s=0;for(i=2e3;i--;){s=(s+1+4*Math.random()|0)%5;o=1.26*s;m=(m+h+v*C(o))/2;n=(n+v+v*S(o))/2;x.fillRect(m,n,1,1)}

Jan 10 2018 8:39 PM UTC

}// 127/140

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Chaos games are fun! https://en.wikipedia.org/wiki/Chaos_game

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zanella

function u(t) {

c.width|=0;t=t/30%1;k=1-t;m=n=0;for(i=1e4;i--;){o=(6*Math.random()|0)*1.047;m=m*t+540*C(o)*k;n=n*t+540*S(o)*k;x.fillRect(m+960,n+540,10,10)}

Jan 11 2018 9:31 PM UTC

}// 140/140

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More fractlas! More chaos games!! Yay!!!

u/zanella

*fractals
u/ETHproductions

Pretty cool. Wait, what's it doing now--oH GOD ITS CONSUMING ME PLEASE HELP
u/donbright

this is so amazing
u/iverjo

Well done

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zanella

remix of d/6152 by u/zanella

function u(t) {

c.width|=0;m=n=0;for(i=2e4;i--;){s=8*Math.random()|0;o=s*t/2;r=s%2?540:381;m=m/3+r*C(o)*2/3;n=n/3+r*S(o)*2/3;x.fillRect(m+960,n+540,5,5)}

Jan 17 2018 9:44 PM UTC

}// 137/140

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u/Qwitter

Fantastic. Love the fact or that 6 passes through three and sepinski peeks through the carpet
u/donbright

dude that is amazing.
u/zanella

donbright thanks!

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zanella

function u(t) {

m=h=960;n=v=540;s=0;for(i=4e3;i--;){s=(s+1+5*Math.random()|0)%6;o=1.045*s;m=(m+h+3*v*C(o))/2;n=(n+v+3*v*S(o))/2;x.fillRect(m,n,1,1)}

Jan 10 2018 8:49 PM UTC

}// 132/140

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Chaos games are fun! https://en.wikipedia.org/wiki/Chaos_game

u/joeytwiddle

#chaos_game

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zanella

remix of d/5861 by u/zanella

function u(t) {

c.width|=0;m=h=960;n=v=540;s=0;for(i=4e3;i--;){s=(s+3+3*Math.random()|0)%4;o=1.57*s;m=(m+h+v*C(o))/2;n=(n+v+v*S(o))/2;x.fillRect(m,n,9,9)}

Jan 10 2018 8:35 PM UTC

}// 138/140

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Chaos games are fun! https://en.wikipedia.org/wiki/Chaos_game

u/Xen

nice!
u/zanella

Thanks!!
u/Xen

done you a remix d/5871

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zanella

function u(t) {

w=1920;x.fillRect(0,0,5,5);x.globalCompositeOperation='xor';x.drawImage(c,0,0,w,5,5,0,w,5);x.putImageData(x.getImageData(0,0,w,1080),0,5)

Dec 29 2017 3:50 PM UTC

}// 137/140

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u/Xen

i love that trick! check out #3458

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zanella

function u(t) {

m=n=0;for(i=1e4;i--;){s=8*Math.random()|0;o=s*Math.PI/4;r=s%2?763:540;m=m/3+r*C(o)*2/3;n=n/3+r*S(o)*2/3;x.fillRect(m+960,n+540,1,1)}

Jan 17 2018 5:09 PM UTC

}// 132/140

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Sierpinski carpet (a.k.a. 2D Menger sponge) as a chaos game. https://en.wikipedia.org/wiki/Sierpinski_car…

u/donbright

woohoo!

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zanella

function u(t) {

c.width|=0;x.font='90px arial';!t&&(A=[]);A.forEach(a=>x.fillText(a.t,a.x,a.y+=9));window.onkeypress=e=>A.push({t:e.key,x:t*t*500%1920,y:0})

Jan 22 2018 1:53 PM UTC

}// 140/140

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Click on the canvas and then type things!

u/joeytwiddle

Super!
u/sigveseb

super cool!
u/donbright

:)
u/iverjo

#interactive
u/Friend

I took off 5 characters by moving the Array initialization to the end: c.width|=0;x.font='90px arial';A.forEach(a=>x.fillText(a.t,a.x,a.y+=9));window.onkeypress=e=>A.push({t:e.key,x:t*t*500%1920,y:0})}{A=[]

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zanella

function u(t) {

c.width=1920;x.beginPath();for(i=40;i;i--){x.arc(960+800*C(t*i*.01),540+800*S(t*i*.01),800,0,7);}x.fill('evenodd')

Jan 9 2018 8:59 PM UTC

}// 114/140

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u/donbright

exquisite

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