dwitter.net | ElisionFR (32)

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function u(t) {
} //
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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.
Theme challenge of the month: #pumpkin
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function u(t) {

}//
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function u(t) {

}//
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  • New particle system (fullscreen only)

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function u(t) {

}//
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  • Generate particles from pointer

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function u(t) {

}//
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  • u/ElisionFR
    Any idea why if I replace "R" by "j" in this script I get a "j is not defined" error ?
  • u/ElisionFR
    God I'm an idiot R is defined as a function by Dwitter....
  • u/tomxor
    nah, i led you down that rabbit hole... using a predefined object (in this case a function, doesn't really matter), is a way to not have to check the object exists to access properties. But you've discovered the new nullish collescing operators :D I can't run this yet cos chrome 80 hasn't landed in debian. looks like it still requires more chars than using existing objects though.
  • u/tomxor
    Hmm, getting a syntax error for browsers who don't support the syntax seems to permantently break the dweet, I have to copy paste to manipulate it.

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function u(t) {

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  • Getting mouse position. Can someone make it in less characters ?
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  • u/tomxor
    If you are happy without full screen you could also ommit the width/height and multiply by an appropriate constant: c.width|=onmousemove=e=>R=e;x.fillRect(R.x*3.4-25,R.y*3.4-25,50,50) that's -73, now you have some space to do something.
  • u/tomxor
    hah, i did this before but forgot: https://www.dwitter.net/d/12717
  • u/tomxor
    #mouse
  • u/ElisionFR
    Nice ! Thanks !

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remix of d/17692 by u/iznax

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  • CLICK IT !

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  • My first Dwitt :)

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