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Multiple Keys (Read 2901 times)
psycovic23
Multiple Keys
May 27th, 2008, 1:36am  
Hey,
I'm actually using the JS version of Processing, but I ran into a problem with multiple keys being pressed. I tried the boolean array keeping track of what has been pressed etc (I'm making a block move around).  The problem occurs here:

keypress 1 -> keypress 2 -> keyrelease 2 -> keyrelease 1

In my array, the release of key 1 isn't updated (presumably because the key variable is only for key 2?)

Any advice would be helpful.  Thanks!
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JohnG
Re: Multiple Keys
Reply #1 - May 27th, 2008, 9:40am  
That sounds like it could be a bug in the JS version of processing. In the real version storing presses/releases per key works fine, e.g.

Code:
boolean keyUp,keyDown; //etc

void draw()
{
  if(keyUp)
    //do something...
  if(keyDown)
    //do something..
  //etc etc
}

void keyPressed()
{
  if(key==UP)
    keyUp=true;
  else if(key==DOWN)
    keyDown=true;
}

void keyReleased()
{
  if(key==UP)
    keyUp=false;
  else if(key==DOWN)
    keyDown=false;
}
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