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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fons

function u(t) {

c.width|=0
x.translate(950,70)
x.lineWidth=500
x.arc(S(t)*00,S(t)*400,t/100,80,9)
x.stroke()

Feb 8 2018 9:38 PM UTC

}// 92/140

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Tic tac

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Ghoust

function u(t) {

c.width*=1
for(j=500;j;j--){a=Math.floor(t*300)+j
for(i=a;i>a-99;i--){i/a==Math.floor(i/a)?x.fillRect(960+S(a)*j*1.5,540+C(a)*j*1.5,9,9):0}}

Jul 29 2022 10:23 AM UTC

}// 140/140

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Prime Number Spiral

u/384.cz

#prime

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KilledByAPixel

function u(t) {

c.width+=0;x.beginPath();for(i=356;i--;)X=S(2*i+t),Y=S(2*i+X),x.lineTo(960+900*X,540+500*Y);x.stroke()

Apr 11 2019 2:31 PM UTC

}// 102/140

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Tweaked to make it fatter and cleaned it up a bit. Anyone know if there is a name for this thing?

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DataMeta

remix of d/21026 by u/ntsutae

function u(t) {

f=(X,Y,n=5)=>n?f(S(X**3-Y**2),3*S(1+X*Y)+1,n-1):t?Y**4:c.width=1e3
for(X=1e3;X--;x.fillRect(X,t*60,1,1))x.fillStyle=R(g=f(X/2e3,22/t%1),g,g)

Dec 21 2020 5:03 AM UTC

}// 140/140

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ripples on a lake

u/magna

Amazing!

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mchll.bd

remix of d/4627 by u/E-Mouse

function u(t) {

c.width=1920;for(i=0;i<33;i++)x.fillRect(i*30,500+C(4*S(t)+i*3)*300,57,100)

Dec 30 2017 4:53 AM UTC

}// 75/140

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demidrugo

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 */

Feb 25 2017 9:20 AM UTC

}// 122/140

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rodrigo.siqueira

remix of d/25546 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=5)=>y<X+x?f(2*x*y+.16,x*x/5-y*y+.5,n+1):C(n/19)
for(i=1e4;i--;x.fillRect(X=u&2047,u>>11,f(X/2000-1,u/8e6-.7),1))u=-~u

May 30 2022 1:58 PM UTC

}// 126/140

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Deep spiral #fractal #spiral

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iverjo

function u(t) {

A=Math.abs;c.width=1920;for(i=24;i--;)x.fillRect(A(1900-(500*t-i*90)%3800),1060-900*A(C(t*2-i/5)),20,20)

Feb 21 2016 8:31 PM UTC

}// 104/140

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#bounce

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ciaccodavide

remix of d/24116 by u/ciaccodavide

function u(t) {

c.width|=1
for(Y=68;Y--;)
for(X=120;X--;)
d=Math.hypot(X-58,Y-34),
x.fillRect(
X*16+C(d*d+t*9)*9,
Y*16+C(d*d+t*9)*9,
9+2*C(t*.8),
9+2*S(t)
)

Oct 14 2021 9:49 PM UTC

}// 140/140

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Xor

function u(t) {

x.font="200px A"
x.fillText('Will the theme ever change?',0,600,1920)

Jun 16 2021 4:26 PM UTC

}// 69/140

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u/Xen

yes, remind on discord