How 2 implement keyboard controls for 2 players simultaneusly in java game?

Question

I ' m making this fighting game . 2 players can fight at a time. I got my 2 characters on the screen at the same time. The 1st player should be controlled with Arrow keys and number key pad.
The 2nd player should be controlled with Z for left C for RIGHT , S for UP( jump), X for duck. and then use BNM, GHJ and TYU to do the same as the number keys for the first player
When i tried this , it worked if i performed moves from player 1 , then trie d player 2,, but i noticed when i pushed buttons at the same time ( i pushed one key from player 1 's side of the keyboard and one key from player 2's side) it did't work because no move was executed. And i know it's because i'm pushing 2 keys at once . so one character sees that i'm pushing 2 keys, but he doesn't know what to do cause i didn't make a case of pushing 2 keys that would move him and another character.
So i have this in keyDown()
//THIS IS FOR 1 PLAYER MODE : you against enemy
switch( key){
case Even.UP:
if( player1 is michaelCharacter ){
michaelCharacter.jump()
else if( player1 is johnsonCharacter){
johnsonCharacter.jump();
break;
etcc... all player 1 keys in this way, acconrding to which character he chose to play with
//then i have this swich that supposedly is used if there is a second player
if( gameType = 2Player mode ){
switch( key ){
case 's':
if( player2 = michaelChacter)
michaelCharacter.jump():
if( player2 = johnsonCharacter)
johnsoncharacter.jump();
break;
//etc
So that works if each character does his move But there is no overlap of moves, that is you don't have player1 and player2 executing a move at the same time.
well, how would i do it? Is it possible ?

Answer 1

Hi,
It's bit tricky to do check keyboard simultaneously...
you need to check KeyPressed() and KeyReleased(), and do a "log key-event history" to find out what keys are still in pressed.
alternatively,
If you don't mind, you can use Fly game library...
initialisation part:
// initialisation & make game screen resolution to 800x600
Game g = new Game();
g.init(800,600,false);
...and then on your key trapping logic, just do a standard logic. I'm surely it will works:
if (g.getKeyboard().isKeyPressed(KeyEvent.VK_UP)) {
if (g.getKeyboard().isKeyPressed(KeyEvent.VK_DOWN)) {
}the library can be downloaded here:
[Fly Game Engine|http://fly.engine.googlepages.com]
Just follow the tutorial / download example for more info....
good luck