This is such a strange problem…
Basically i have created a key listener connected to my JPanel… And sometimes when i compile and run it it does work realy good and no problems what so ever…
But then sometimes when i compile it wont work. It doesn’t recognise keypresses.
Here is the code i used for key listener in my JPanels update method:
if(keyListener.getMovingRight() == KeyEvent.VK_RIGHT){
player.playerMoveRight();
}
if(keyListener.getMovingLeft() == KeyEvent.VK_LEFT){
player.playerMoveLeft();
}
if(keyListener.getMovingUp() == KeyEvent.VK_UP){
player.playerMoveUp();
}
if(keyListener.getMovingDown() == KeyEvent.VK_DOWN){
player.playerMoveDown();
}
And the above code knows if keys was pressed from this class:
public class KeyBoard implements KeyListener {
private int playerMoveUp;
private int playerMoveDown;
private int playerMoveLeft;
private int playerMoveRight;
public KeyBoard(){
playerMoveUp = 0;
playerMoveDown = 0;
playerMoveLeft = 0;
playerMoveRight = 0;
}
@Override
public void keyTyped(KeyEvent keyEvent) {
}
@Override
public void keyPressed(KeyEvent keyEvent) {
//Switch statement to get which keys were pressed
switch(keyEvent.getKeyCode()){
case KeyEvent.VK_UP:
playerMoveUp = keyEvent.getKeyCode();
break;
case KeyEvent.VK_DOWN:
playerMoveDown = keyEvent.getKeyCode();
break;
case KeyEvent.VK_LEFT:
playerMoveLeft = keyEvent.getKeyCode();
break;
case KeyEvent.VK_RIGHT:
playerMoveRight = keyEvent.getKeyCode();
break;
}
}
@Override
public void keyReleased(KeyEvent keyEvent) {
//Switch statement to get which keys were released
switch(keyEvent.getKeyCode()){
case KeyEvent.VK_UP:
playerMoveUp = 0;
break;
case KeyEvent.VK_DOWN:
playerMoveDown = 0;
break;
case KeyEvent.VK_LEFT:
playerMoveLeft = 0;
break;
case KeyEvent.VK_RIGHT:
playerMoveRight = 0;
break;
}
}
public int getMovingUp(){
return playerMoveUp;
}
public int getMovingDown(){
return playerMoveDown;
}
public int getMovingLeft(){
return playerMoveLeft;
}
public int getMovingRight(){
return playerMoveRight;
}
}
And i ofcourse added the key listener to the JPanel by doing this:
panel.addKeyListener(KeyBoardClasshere);
Since it wasnt working regularly i tried something else called Key Bindigs since i heard that would increase my chances…
I added this in my JPanel class and commented out the key listener in the update method:
public void keyBindingsInitialize(ActionMap am, InputMap im){
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0), "Right");
am.put("Right", RightBind);
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0), "Left");
am.put("Left", LeftBind);
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), "Up");
am.put("Up", UpBind);
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), "Down");
am.put("Down", DownBind);
}
Action RightBind = new AbstractAction(){
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
player.playerMoveRight();
}
};
Action LeftBind = new AbstractAction(){
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
player.playerMoveLeft();
}
};
Action UpBind = new AbstractAction(){
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
player.playerMoveUp();
}
};
Action DownBind = new AbstractAction(){
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
player.playerMoveDown();
}
};
This also works but sometimes when i compile and run the project it just doesnt work and then it works if i terminate the project and then run it again… Its soo strange in my oppinion… Anyone have suggestions?
