Java-Gaming.org
Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
Featured games (78)
games approved by the League of Dukes
Games in Showcase (406)
games submitted by our members
Games in WIP (293)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Holding down keys, such as for movement  (Read 902 times)
0 Members and 1 Guest are viewing this topic.
Offline Glass

Senior Newbie





« Posted 2012-06-16 02:45:39 »

1  
2  
3  
4  
5  
6  
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: 264
Projects: 2


I'm the King!


« Reply #1 - Posted 2012-06-16 02:48:16 »

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

Offline Glass

Senior Newbie





« Reply #2 - Posted 2012-06-16 02:54:14 »

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

1  
2  
3  
4  
5  
while(Keyboard.next()){
         if(Keyboard.isKeyDown(Keyboard.KEY_W)){
            if(Keyboard.getEventKeyState()){
               setMoving(true,0);
               }

1  
2  
3  
4  
while(Keyboard.next()){
         if(Keyboard.isKeyDown(Keyboard.KEY_W)){
               setMoving(true,0);
         }

1  
2  
3  
4  
5  
6  
while(Keyboard.next()){
         if(Keyboard.getEventKey() == Keyboard.KEY_W){
            if(Keyboard.isKeyDown(Keyboard.KEY_W)){
               setMoving(true,0);
               }
         }


Games published by our own members! Check 'em out!
Play the free demo of Revenge of the Titans!
Offline ra4king

JGO Kernel


Medals: 264
Projects: 2


I'm the King!


« Reply #3 - Posted 2012-06-16 02:57:19 »

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

Polling:
1  
2  
if(Keyboard.isKeyDown(Keyboard.KEY_A))
    moveLeft();


Event:
1  
2  
3  
4  
5  
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 03:00:58 »

Simply amazing. Thanks again.
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
 
Browse for soundtracks for your game!

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

The invasion has landed! On Mars! And you're there to beat 'em!
cubemaster21 (84 views)
2013-05-17 21:29:12

alaslipknot (92 views)
2013-05-16 21:24:48

gouessej (123 views)
2013-05-16 00:53:38

gouessej (117 views)
2013-05-16 00:17:58

theagentd (127 views)
2013-05-15 15:01:13

theagentd (114 views)
2013-05-15 15:00:54

StreetDoggy (158 views)
2013-05-14 15:56:26

kutucuk (180 views)
2013-05-12 17:10:36

kutucuk (180 views)
2013-05-12 15:36:09

UnluckyDevil (187 views)
2013-05-12 05:09:57
Complex number cookbook
by Roquen
2013-04-24 12:47:31

2D Dynamic Lighting
by Oskuro
2013-04-17 16:46:12

2D Dynamic Lighting
by Oskuro
2013-04-17 16:45:57

2D Dynamic Lighting
by Oskuro
2013-04-17 16:23:20

Noise (bandpassed white)
by Roquen
2013-04-05 17:36:01

Noise (bandpassed white)
by Roquen
2013-04-03 16:17:38

Java Data structures
by Roquen
2013-03-29 13:21:12

Topic Request
by kutucuk
2013-03-22 21:42:01
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!
Page created in 0.111 seconds with 21 queries.