Top dweets by u/katkip

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: #Food

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katkip

remix of d/11744 by u/katkip

function u(t) {

c.width^=0;for(i=200;i--;)x.lineTo(960+S(i-S(t*2+i*2))*500,540+C(i-C(t*3+i*2))*500);x.fill()

Jan 11 2019 2:55 PM UTC

}// 92/140

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The organic square #loop

u/katkip

#abstract

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katkip

remix of d/11743 by u/katkip

function u(t) {

c.width^=0;for(i=400;i--;)x.lineTo(960+S(i+C(i+t))*500,540+C(i-S(i-t))*500);x.fill()

Jan 11 2019 2:50 PM UTC

}// 84/140

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That organic black

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭦潲⡡㴹㭡ⴭ㬩砮晩汬剥捴⠴〰⭡⨱〰⭓⡴⤪㌰〬㐰〭匨琩⨵〬㔰ⰳ〰⤬砮晩汬剥捴⠰ⰵ〰ⰲ攳ⰹ〰⤻砮晩汬却祬攽✣晦昧㭦潲⡢㴹㭢ⴭ㬩砮晩汬剥捴⠴〰⭢⨱〰⭓⡴⤪㌰〬㔰〬㔰ⰱ〰ⵓ⡴⤪㔰⤻`.replace(/u(..)/g,"$1%")))

Jan 11 2019 2:18 PM UTC

}// 139/140

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#invert default

u/katkip

c.width^=0;for(a=9;a--;)x.fillRect(400+a*100+S(t)*300,400-S(t)*50,50,300),x.fillRect(0,500,2e3,900);x.fillStyle='#fff';for(b=9;b--;)x.fillRect(400+b*100+S(t)*300,500,50,100-S(t)*50);

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katkip

function u(t) {

c.width*=1;t*=t/4;for(i=96;i--;)x.fillRect(i*20,540+S(t+i/6)*300+S(i/3+t)*150+S(i/1.5+t)*75+S(i/.75+t)*37.5+S(i/.375+t)*18.75,20,50)

Jan 9 2019 8:50 AM UTC

}// 132/140

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Fourier Series speeding up #math

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katkip

remix of d/11624 by u/metamero

function u(t) {

t||x.translate(960,540);for(i=360;i--;x.fillStyle=`hsl(${frame} 99%50%)`)x.fillRect(i*6,9,9,9);x.drawImage(c,0,1);x.rotate(C(t/15)/50+3.14)

Jan 3 2019 1:34 PM UTC

}// 139/140

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Pretty old method but...

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katkip

remix of d/11621 by u/metamero

function u(t) {

for(i=720;i--;x.fillStyle=`hsl(${frame*S(i+C(frame&i)*frame/i)},100%,50%)`)x.fillRect(i*3,0,3,9);x.drawImage(c,0,9)

Jan 3 2019 1:06 PM UTC

}// 115/140

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thanos

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katkip

function u(t) {

// HAPPY NEW YEAR
c.width^=0;x.font='20em"';for(i=10;i--;)x.fillText(`🎆🎇🎆🎇🎆🎇🎆`,-99+S(t*3+i*i)*99,100+i*200)

Dec 31 2018 10:22 PM UTC

}// 107/140

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katkip

function u(t) {

r=(X,Y,s)=>{if(s>1)x.beginPath(),x.arc(X,Y,s*2,0,7),x.stroke(),r(X-s,Y,s/2),r(X+s,Y,s/2)}
r(960,540,480)

Dec 31 2018 11:56 AM UTC

}// 104/140

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#recursive circles #recursion #circle #arc #fractal

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katkip

function u(t) {

c.width^=0
f=(X,Y,d,a=C(d)*d,b=d/2)=>{if(d>20)x.strokeRect(X-b,Y-b,d,d),f(X+a,Y,b),f(X,Y+a,b),f(X-a,Y,b),f(X,Y-a,b)};f(960,540,700-t)

Dec 30 2018 1:06 PM UTC

}// 133/140

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#recursive squares. Thanks to u/BirdsTweetCodersDweet for golfing

u/katkip

It's better on fullscreen, there are different patterns

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katkip

remix of d/11572 by u/Xen

function u(t) {

t||x.translate(960,540)
x.fillRect(0,0,9,99)
x.drawImage(c,C(t),S(t))
x.fillStyle=`hsl(${99/t},80%,50%)`
x.rotate(1.57+C(t)/99)

Dec 28 2018 2:47 PM UTC

}// 127/140

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