Kids on swings remix "weeee!" by danny@hille.dk

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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danny@hille.dk

remix of d/23343 by u/danny@hille.dk

function u(t) {

for(c.width=i=192;i--;)for(p=9;p--;)('༏ఃࠁࠁϼݮ୭෻ง෻ਅ۶ࡡඛ๧'.charCodeAt(Y=i%16)>>(X=i>>4))%2||x.fillRect(p*18+X+18,Y*(s=2*S(3*t+p))+s*9+60,1,s)

Jul 17 2021 2:46 PM UTC

}// 138/140

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Kids on swings remix "weeee!"

Show more comments…
u/danny@hille.dk

I was trawling the interwebs for fun and leisure and found this sprite sheet http://legacy.gamebuino.com/forum/viewtopic.… and of course i thought of dwitter :-)
u/donbright

wow amazing encoding
u/danny@hille.dk

Thanks mate, I didn't really know how the encoding was done, so i came up with this solution function makeMagicString(data, width){ let buf = ''; let str = '' data.forEach((o,i)=>{ if(i%width===0 && i){ str += String.fromCharCode(parseInt(buf,2)); buf = ''; } buf += o?1:0; }) str += String.fromCharCode(parseInt(buf,2)) return str; }
u/danny@hille.dk

where data is an array of 1 and 0 ex: [0,0,0,0,0,1,1,1,1,1,0,0,0,0,0, 0,0,0,1,1,1,0,0,0,1,1,1,0,0,0, 0,0,1,1,1,1,0,0,0,0,1,1,1,0,0, 0,1,1,1,1,0,0,1,1,1,0,1,1,1,0, 0,1,0,0,0,0,1,1,1,1,1,0,1,1,0, 1,0,1,1,0,0,0,1,1,1,0,0,0,0,1, 1,1,1,1,1,0,0,0,0,0,0,0,0,1,1, 1,0,1,1,0,0,0,0,0,0,0,0,1,1,1, 1,0,0,0,1,1,1,1,1,1,1,0,0,1,1, 0,1,1,1,0,0,1,0,1,0,0,1,1,1,0, 0,0,1,0,0,0,1,0,1,0,0,0,1,0,0, 0,0,0,1,0,0,0,0,0,0,0,1,0,0,0, 0,0,0,0,1,1,1,1,1,1,1,0,0,0,0]
u/danny@hille.dk

I know it's not the most elegant solution, but I stick to the mantra "If it works, it aint stupid" :-)
u/danny@hille.dk

#pixelart


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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