dbKeyState - GameCreators Forum

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bjadams

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Posted: 3rd Jun 2008 20:22

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I am using dbKeyState() to get an input from the user.

however i would like the dbKeyState to be triggered ONLY when the user presses AND removes his finger from the key.

Right now if the user presses the key dbKeyState() is being triggered every loop and goes too fast. this is ok for pressing the arrow keys to move a game figure, but not good for toggling weapons, as it cycles too fast!

is there any other type of input I must use instead of dbKeyState() or I must write code to take care of this myself?

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Zuka

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Posted: 3rd Jun 2008 21:30

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I suggest you work out a timer. You should count the frames, and if its held for a certain amount of frames, it triggers the weapon cycle thing.

I AM THE ALL MIGHTY CORNHOLIO! Do you have TP for my bunghole?

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SunDawg

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Posted: 3rd Jun 2008 21:58 Edited at: 3rd Jun 2008 21:58

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You could do something like this:

+ Code Snippet

if (dbKeyState(scanCode)==1){
    while(dbKeyState(scanCode)==1){dbSync();}
    //Change weapons or whatever.
}

The only problem this presents the time the program will hang, updating the screen but nothing else, while the key is down. A better effect could be done using a boolean variable.

+ Code Snippet

//Outside of your loop
bool keyIsPressed;

//Inside the loop
if ((dbKeyState(key)==1)&&(!keyIsPressed)){keyIsPressed=1;}
if ((dbKeyState(key)==0)&&(keyIsPressed)){
    keyIsPressed=0;
    //Change weapons or whatever.
}

The second system is superior, because the game can continue to function while the key is down.