if (g_keys->keyDown["U"] || g_keys->keyDown["J"])
//do sth. here
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two keys pressed together
May 08, 2008 03:46 PM
Hi guys. In my program, i want to allow user to use two keys to control the same thing. Say use both "U" and "J" to fire. So I wrote this in my code. But it does seem to work Any suggestions?
/*----------------------------------------------------------------------------------------------------------------------------------*/Enthusiastic and wild about game development. Any opportunity would get me sink into any fantastic game-revolution era.
334
May 08, 2008 03:53 PM
Does it work if you just press U and not work when you press J? Or it doesn't work for neither? And do you want the user to press both U and J at the same time to fire or either pressing U or J will fire?
May 08, 2008 04:01 PM
I think it only worked when i pressed the former key, in this case U.
Sorry. It should be single quote in the code. 'U' not "U".
I want to use either key to control the fire, which means U can fire a bullet and so does J.
Sorry. It should be single quote in the code. 'U' not "U".
I want to use either key to control the fire, which means U can fire a bullet and so does J.
/*----------------------------------------------------------------------------------------------------------------------------------*/Enthusiastic and wild about game development. Any opportunity would get me sink into any fantastic game-revolution era.
May 09, 2008 06:58 AM
Quote:
Original post by DrakeThe
Have you tried using && instead of ||?
I haven't tried. I don't think it would work, because I want the keys work when either of them are pressed.
/*----------------------------------------------------------------------------------------------------------------------------------*/Enthusiastic and wild about game development. Any opportunity would get me sink into any fantastic game-revolution era.
973
May 10, 2008 07:40 AM
Your code line is correct for the result you want to achieve, perhaps the problem lies within g_keys?
Member of the NeHe team | PhD Student at Heidelberg Collaboratory for Image Processing | ProCamera Developer
1,538
May 10, 2008 08:09 AM
It looks like the code is correct but you're testing against only the UPPERCASE letters.
so try this instead:
When you press a key you're probably getting the lowercase version through.... maybe.
Andy
if (g_keys->keyDown["U"] || g_keys->keyDown["J"]) //do sth. hereso try this instead:
if (g_keys->keyDown['u'] || g_keys->keyDown['j'] || g_keys->keyDown['U'] || g_keys->keyDown['J']) //do sth. hereWhen you press a key you're probably getting the lowercase version through.... maybe.
Andy
"Ars longa, vita brevis, occasio praeceps, experimentum periculosum, iudicium difficile"
"Life is short, [the] craft long, opportunity fleeting, experiment treacherous, judgement difficult."
May 12, 2008 09:18 PM
1st of all, thanks for the reply.
My code was correct. Actually the reason it didn't work was because of this
Because the second if actually made the fire to be always false, unless u and i were pressed together.
Solution: change the second if to if( u is not press AND i is not pressed).
My code was correct. Actually the reason it didn't work was because of this
if( u pressed or i pressed) fire = true;if( u is not pressed or i is not pressed) fire = false;Because the second if actually made the fire to be always false, unless u and i were pressed together.
Solution: change the second if to if( u is not press AND i is not pressed).
/*----------------------------------------------------------------------------------------------------------------------------------*/Enthusiastic and wild about game development. Any opportunity would get me sink into any fantastic game-revolution era.
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