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  Holding down keys, such as for movement  (Read 1678 times)
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Offline Glass

Senior Newbie





« Posted 2012-06-16 00:45:39 »

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while(Keyboard.next()){
         if(Keyboard.getEventKey() == Keyboard.KEY_W){
            if(Keyboard.getEventKeyState()){
               setMoving(true,0);
               }
                         //...etc for A, S, D


This is the code that I use that is supposed to register the key press a single time, and then not anymore. It prevents the action from repeating even if your keys are held down. For an action like movement, however, repeated action from holding down a button is necessary. I have tried screwing around with the code(changing if to while, but that always freezes it up, and removing some of the loops) but none of it is working. What is the code that one needs to allow holding down keys yielding a repeated action?
Offline ra4king

JGO Kernel


Medals: 345
Projects: 3
Exp: 5 years


I'm the King!


« Reply #1 - Posted 2012-06-16 00:48:16 »

Are you looking for Keyboard.isKeyDown(Keyboard.KEY_<key>) ?

Offline Glass

Senior Newbie





« Reply #2 - Posted 2012-06-16 00:54:14 »

I've tried the following, and it still only registers once.

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while(Keyboard.next()){
         if(Keyboard.isKeyDown(Keyboard.KEY_W)){
            if(Keyboard.getEventKeyState()){
               setMoving(true,0);
               }

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while(Keyboard.next()){
         if(Keyboard.isKeyDown(Keyboard.KEY_W)){
               setMoving(true,0);
         }

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while(Keyboard.next()){
         if(Keyboard.getEventKey() == Keyboard.KEY_W){
            if(Keyboard.isKeyDown(Keyboard.KEY_W)){
               setMoving(true,0);
               }
         }


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Offline ra4king

JGO Kernel


Medals: 345
Projects: 3
Exp: 5 years


I'm the King!


« Reply #3 - Posted 2012-06-16 00:57:19 »

Keyboard.next() is for events. Keyboard.isKeyDown(...) is polling. Both are to be used separately for different reasons.

Polling:
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if(Keyboard.isKeyDown(Keyboard.KEY_A))
    moveLeft();


Event:
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while(Keyboard.next()) {
    if(Keyboard.getKeyEvent() == Keyboard.KEY_A)
        if(Keyboard.getEventKeyState())
            System.out.println("You hit the A key!"); //only printed once on initial keypress.
}

Offline Glass

Senior Newbie





« Reply #4 - Posted 2012-06-16 01:00:58 »

Simply amazing. Thanks again.
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