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/10019 by u/katkip

function u(t) {

c.width^=0;for(i=0;i<77;i++)for(j=0;j<44;j++)x.fillStyle=`hsla(${i*S(i)/j*C(j)*t*5},99%,50%)`,x.fillRect(i*25,j*25,25,25)

Sep 22 2018 4:54 PM UTC

}// 121/140

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This pattern is evolving #waitforit

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katkip

remix of d/10018 by u/katkip

function u(t) {

c.width^=0;for(i=0;i<77;i++)for(j=0;j<44;j++)x.fillStyle=`hsla(${(i*j*t/999|0)%2?0:200},99%,50%)`,x.fillRect(i*25,j*25,25,25)

Sep 22 2018 4:53 PM UTC

}// 125/140

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I don't know why but I like this kind of dweets.

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katkip

remix of d/10017 by u/katkip

function u(t) {

c.width^=0;for(i=0;i<77;i++)for(j=0;j<44;j++)x.fillStyle=`hsla(${S(i)*S(j)*S(t)*500},99%,50%)`,x.fillRect(i*25,j*25,25,25)

Sep 22 2018 4:51 PM UTC

}// 122/140

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Beautiful

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katkip

function u(t) {

c.width^=0;for(i=0;i<77;i++)for(j=0;j<44;j++)x.fillStyle=`hsla(${i+t*99+j},99%,50%)`,x.fillRect(i*25,j*25,25,25)

Sep 22 2018 4:50 PM UTC

}// 112/140

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#rainbow

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katkip

function u(t) {

t|x.translate(960,540);if(!t)for(f=0;f++<5e2;)x.fillStyle=`hsl(${100*f},99%,${(f*3)%100}%)`,x.fillRect(S(f)*960,0,20,1080),x.rotate(1)

Sep 21 2018 12:43 PM UTC

}// 134/140

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katkip

function u(t) {

c.width*=1;
for(i=0;i<400;i++)x.fillRect(i*(5+t/99),0,S(t*i/99)*3,2000)
for(i=0;i<400;i++)x.fillRect(0,i*(5+t/100),2000,S(t*i/99)*3)

Sep 21 2018 11:28 AM UTC

}// 132/140

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Black and white illusion. Don't see the #illusion ? Fullscreen

u/metamero

#ScintillatingGridIllusion

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katkip

remix of d/9966 by u/katkip

function u(t) {

if(!t){p=n=>[...Array(n).keys()].slice(2).map(i=>!(n%i)).includes(!0);for(i=0;i++<21201;)p(i)?0:x.fillRect((i%190)*10,(i%112)*10,20,20)}

Sep 20 2018 5:13 PM UTC

}// 136/140

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Perfectly golfed by u/anotherkitten

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katkip

function u(t) {

eval(unescape(escape`楦⠡琩筰㵮㴾⅛⸮⹁牲慹⡮⤮步祳⠩崮獬楣攨㈩⹭慰⡩㴾ℨ渥椩⤮楮捬畤敳⠡ℱ⤦☡⠡湼籮㴽ㄩ㭺㴰㭦潲⡩㴰㭩⬫㰲ㄲ〱㬩稫⬬瀨稩㽸⹦楬汒散琨⡩┱㤰⤪㄰Ⱘ椥ㄱ㈩⨱〬㈰ⰲ〩㨰紻`.replace(/u(..)/g,"$1%")))

Sep 20 2018 4:43 PM UTC

}// 128/140

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Visualizing prime numbers looks like ancient letters! #primes #slowrender #text

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katkip

remix of d/9964 by u/katkip

function u(t) {

x.lineWidth=0.01;x.arc(960+S(t*1.9217759919284157192857918275019275876192876596565161162058752)*550,540+C(t)*550,550,2,frame/360);x.stroke()

Sep 20 2018 3:50 PM UTC

}// 140/140

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katkip

function u(t) {

c.width^=1,x.lineWidth=1;for(r=0;r<336;r++)x.arc(m=960+S(r+t)*200,n=540+C(r+t*2)*200,300,0,7);x.stroke()

Sep 20 2018 3:40 PM UTC

}// 104/140

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Example of recursion in natural spatial shapes (see that smaller second circle in the donut? )

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