Dweets by u/Jenky

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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Jenky

function u(t) {

c.width=c.clientWidth;m=!t?[0,0]:m;c.onmousemove=e=>m=[e.layerX,e.layerY];x.font="1em A";x.fillText(m,...m)

Mar 23 2017 2:33 AM UTC

}// 107/140

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Compact-ish MousePos retrieval, fixed compatibility, golfed

u/recursive

ooh nice, no more 3.3

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Jenky

function u(t) {

c.onmousemove=e=>m=[e.x*3.4,e.y*3.4];x.drawImage(c,C(t)*.2-2,S(t)*.2-2,1924,1084);x.fillStyle=`hsl(${t*600},99%,50%)`;x.fillRect(...m,8,8);

Mar 22 2017 11:37 AM UTC

}// 139/140

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Move the mouse around over the canvas for rainbows~

u/donbright

finally looked at this one in Chrome... breahtaking
u/donbright

breath even

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Jenky

function u(t) {

r=210;X=Y=O=20;n=new Date/1e3
b=d=>{x.fillStyle=R(d?0:r);x.fillRect(X,Y,r,r);Y+=X<r*7?0:O+r;X=X<r*7?X+O+r:O}
for(i=2;i<5e9;i*=2)b(n%i>=i/2)

Mar 8 2017 1:17 PM UTC

}// 139/140

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Binary representation of number of seconds passed since 1 Jan 1970

u/donbright

super cool

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Jenky

function u(t) {

c.width=320;d=new Date/1e3;r=9
a=v=>{x.beginPath();x.lineWidth++;x.arc(160,90,9*r--,0,v*.1047);x.stroke()}
a(d%60);a(d/60%60);a(d/3600%12*5)

Feb 28 2017 7:10 AM UTC

}// 140/140

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OS-time Arc Clock

u/donbright

love it!

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Jenky

function u(t) {

n=512;r=6.28;for(i=t;i<t+r;i+=r/30){z=i+t;a=-S(i);b=-C(i);x.fillStyle=R(C(z)*n,C(z+r/3)*n,C(z+4.18)*n);x.fillRect(960+S(t)*a*n,n+b*n,9,9)}

Feb 26 2017 8:17 AM UTC

}// 138/140

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Rainbow experiment without 'hsv()'

u/donbright

this is really nice
u/sfz

purdy

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