Random dweets | Dwitter

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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Finianb1

function u(t) {

c.width|=0
for(i=0;i<20*4;i++){x.fillStyle=`hsl(${i+t*100},100%,50%)`
x.fillRect((i/3)*100+C(4*t+i%4)*10,50*S((i/4)-t)+(500*(i%3)),50,200)}

Oct 18 2018 6:51 PM UTC

}// 139/140

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One character under

u/pavel

-25 with a bunch of tricks for(c.width|=i=80;i--;x.fillRect(i*33+C(4*t+i%4)*9,50*S(i/4-t)+i%3*500,50,200))x.fillStyle=hsl(${i+t*99},99%,50%)
u/Finianb1

Oh, thanks!

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Xen

remix of d/17608 by u/DaSpider

function u(t) {

for(i=z=c.width|=0;i--;c.style.filter="blur(2vh)sepia()invert(")x.fillRect(z/2+C((w=i/t))*w*4,z/4+S(w)*w*3,w,9)

Feb 13 2020 5:52 PM UTC

}// 111/140

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Halftone Hippie

u/Xen

#waitforit

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kchplr

function u(t) {

for(c.width|=0,i=3142,n=500;i--;Y=S(i/n*(2-(.5+S(t+V)|0))),X=C(S(t)+t+i/n),x.fillRect(960+X*n+V/X,550+Y*n+V*Y,4+V*X,5))V=(T(C(i+t)))**7

Aug 4 2017 10:05 AM UTC

}// 135/140

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ThirdEstate

function u(t) {

c.width=1920;
for(i=0;i<8e2;i++){a=S(t+i*4);b=C(t+i*3);
x.fillStyle=R(0,200+a,150+90*b);
  x.fillRect(955+C(i)*a*800,580+b*900,200*b,900*b)}

Dec 27 2017 4:27 PM UTC

}// 140/140

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u/Xen

the motion feels right, demoscene style...

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iznax

function u(t) {

for(c.width|=i=12;x.font="9em'",i--;)x.fillText([..."👞🥿🥾👠👟👡👢"][a=i>>1],(a>>1)*600+(1+S(t+a)+a%2+i%2)*99,550+(S(a*5)+1)*200+S(t*6+i*27)*20)

Apr 2 2020 2:38 AM UTC

}// 138/140

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Invisible Couples #Dancing Naked

u/joeytwiddle

Imaginative!

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pavel

function u(t) {

c.width|=f=(X,Y,r)=>r>1&&x.moveTo(X+r,Y)+x.arc(X,Y,r,0,7)+f(X+r*C(a=(S(b=5*t)-b)/4),Y,r/2)+f(X,Y+r*S(a),r/2)
f(960,540,270)
x.fill`evenodd`

Oct 13 2021 9:44 PM UTC

}// 139/140

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Some nice math for the 270 initial radius: The half-height is 540, this must equal r+r/2+r/4+r/8+...=r(1+1/2+1/4+1/8+...). Think about the bit in the brackets in terms of pizzas. You have a whole pizza, plus half a pizza, plus a quarter (half the remaining half), plus an eighth (half the remaining), etc. You have two pizzas! So 540=r*2.

u/pavel

Remix of d/11587. I remixed my other remix but that one was boring so I deleted it.
u/ciaccodavide

nice!
u/cantelope

i think about everything in terms of pizzas

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Xen

remix of d/22137 by u/BackendForth

function u(t) {

t/=199
for(c.width|=i=1e3;i--;x.lineTo(960+i*C(Z=z+t-i),540+i*S(Z)))x.beginPath(x.stroke()),x.moveTo(960+i*C(z=i*t),540+i*S(z))

Mar 25 2021 4:19 PM UTC

}// 127/140

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quick play

u/Xen

As with most things, Feed it time.

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nix

function u(t) {

x.fillStyle=R(t*t,(t)+200,S(t)*99)
x.fillRect(200+60*S(t)+t*20,C(t)*100+400+C(t),C(2*t),S(t)*100+S(2*t))

May 7 2018 10:05 PM UTC

}// 105/140

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username

remix of d/12432 by u/username

function u(t) {

s=(t%3)**2
for(Y=9;Y--;x.font="99in'")for(X=Y+1;X--;x.fillStyle=`hsl(${(X+Y+t)**2},66%,71%`)x.fillText('.',738+(X*48-Y*24)*s,(Y-4)*s**2+571)

Feb 20 2019 5:04 PM UTC

}// 140/140

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bencoveney

function u(t) {

for(c.width|=i=j=k=0;i<99;i++,j=i*13,k=S(i/2-t)*i+99,x.fillStyle=R(k))x.fillRect(960-j/2,j-k,j,99)

Nov 3 2019 12:35 AM UTC

}// 98/140

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Ribbon