Play Hue Jumper! - https://killedbyapix… by KilledByAPixel

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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KilledByAPixel

remix of d/17007 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐳𜀰𛁸𛡴𬡡𫡳𫁡𭁥𚀹𞀰𛀹𚐻𪐭𛐻𮀮𩡩𫁬𥁥𮁴𚁲🱠𧱟𧰤𮱡𙐴𜰾𞐿𙱟𙰺𙰠𘀧𯑟𧱟𨀺𙱜𭐲𝑂𜠧𛁲🰭𜐹𞡓𚁡𚡡𚠱𞐹𚐪𝀹𛀸𚐩𮀮𬱣𨑬𩐨𜐮𜀲𛀱𛠰𜠴𚐬𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𚰨𚁲🐨𨐽𪐫𭀪𝠰𯀰𚐥𞐡🐰𚐫𭁼𜀩𚠶𜁽𘀶𞐥𝀰𙑠`.replace(/u../g,'')))

Feb 18 2020 8:44 PM UTC

}// 140/140

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Play Hue Jumper! - https://killedbyapixel.itch.io/hue-jumper

Show more comments…
u/KilledByAPixel

My #2kPlus jam entry. The entire game in #JavaScript is under 2048 bytes when zipped!
u/andrea270872

wow... I have to look into this 2kplus competition
u/rodrigo.siqueira

The game is great! Sound effects could also be generated in pure JS.
u/KilledByAPixel

Thank you! I released a tiny JS sound effect generator that I use for all my stuff. But couldn't fit it in this. https://github.com/KilledByAPixel/ZzFX
u/rodrigo.siqueira

Great JS sound effect library!! I'm playing a lot with it. If you put a Math.ceil around your main frequency (Math.cos), it will convert to square wave and sound like 8bit videogames. See here how it sounds: https://js.do/rsiqueira/audio-zzfx-square-wa…
u/rodrigo.siqueira

May be a small improvement that would bring good results would be to have "exponetial decay" option. And some sounds should not have decay (I implemented a simple decay_flag, if 0 there is no decay). Or may be it can be more generic, using the ADSR envelope model (Attack, Decay, Sustain, Release variables). I'm also trying to play a sequence of notes but the setTimeout for each sound/note does not bring reliable results.
u/KilledByAPixel

thanks rodrigo, i am planning on working on it more and adding a few more params, I want to keep it simple so still deciding!
u/rodrigo.siqueira

This #road game is featured in Hacker News (today's top): https://news.ycombinator.com/item?id=22524287


      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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