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/9425 by u/katkip

function u(t) {

if(!t){l=0;r=-1}while(l<22){x.fillStyle=`hsl(${r**r+t*25+l**l},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}}l=0

Aug 25 2018 12:11 PM UTC

}// 125/140

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Evolving

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katkip

remix of d/9424 by u/katkip

function u(t) {

if(!t){l=0;r=-1}while(l<22){x.fillStyle=`hsl(${t*r&l*t},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}}l=0

Aug 25 2018 12:06 PM UTC

}// 118/140

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Colored #sierpinski

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katkip

remix of d/9423 by u/katkip

function u(t) {

if(!t){l=0;r=-1}while(l<22){x.fillStyle=`hsl(${S(r*l*t/100)*100},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}}l=0

Aug 25 2018 12:05 PM UTC

}// 127/140

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katkip

remix of d/9422 by u/katkip

function u(t) {

if(!t){l=0;r=-1}while(l<22){x.fillStyle=`hsl(${S(r+l-t)*C(r-l+t)*t*25},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}}l=0

Aug 25 2018 12:03 PM UTC

}// 133/140

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katkip

remix of d/9421 by u/katkip

function u(t) {

if(!t){l=0;r=-1}x.fillStyle=`hsl(${S(r+t)*l*25},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}

Aug 25 2018 11:56 AM UTC

}// 106/140

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katkip

function u(t) {

if(!t){l=0;r=-1}x.fillStyle=`hsl(${l*50%r*t*t},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}

Aug 25 2018 11:54 AM UTC

}// 105/140

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2 columns - > 4 col -> 16 col -> ...

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katkip

function u(t) {

x.arc(960,540,40*+Math.abs(T(t)*t),t*t,t);x.fill()
x.globalCompositeOperation='xor';FPS=200

Aug 25 2018 11:33 AM UTC

}// 91/140

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Visual #illusion . Fullscreen and look in the center then look in the middle for 1 minute then look away. See that lines? lol

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katkip

function u(t) {

c.width=1920;
x.arc(990,y=980-Math.abs(C(t*5)/(t**t))*540,1e2,1e2,2e2);x.fill()

Aug 25 2018 7:59 AM UTC

}// 80/140

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#gravity #ball yaay

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katkip

remix of d/3178 by u/cantelope

function u(t) {

for(x.globalAlpha=.02,x.fillRect(0,0,q=i=2e3,q);i--;)x.clearRect(960+S(p=i/318)*(d=300+T(p*5+T(t/2)*9)*(140+S(t)*70)*T(t*9)),540+C(p)*d,1,1)

Aug 25 2018 7:45 AM UTC

}// 140/140

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katkip

remix of d/2298 by u/keithclark

function u(t) {

for(a=c.width^=0;d=C(--a+t)*S(b=a*1.2502),e=S(a+t)*S(b);x.fillRect(d*h+960,C(b)*h+540,i=h/40+10,i))h=900*(2+e*t)-2e3

Aug 25 2018 7:40 AM UTC

}// 116/140

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Black hole inside a sphere

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