Problems with the Keyboard class

[ryiden]

I want to rotate an object from two different classes when a keyboard event is fired. When the key Keyboard.KEY_R is down, the object should rotate to the left. And when the keys Keyboard.KEY_R and Keyboard.KEY_LCONTROL are down, the object should rotate to the right:

if (Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateLeft();
}

if (Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateRight();
}

Now my problem is, both events are fired on Keyboard.KEY_LCONTROL and Keyboard.KEY_R.
I tried the following without any success, because the function getNumKeyboardEvents() is incrementing until infinity:

if (getNumKeyboardEvents() == 1 && Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateLeft();
}

[bobjob]

in the class containing the rotate function without the left control button add

if (!Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_R))

add a "!" in front of  left Control there for leftcontrol cant b down while r is down.

is this wot u ment

[Fool Running]

Try:

if (Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateRight();
}
else if (Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateLeft();
}

Hope that helps

[ryiden]

It doesnt help, because I access the Keyboard from different objects/classes, for example multiple Rotation objects:

int angle;
int[] keys;

angle = 2
keys = new int[]{Keyboard.KEY_R};
Rotation rotateLeft = new Rotation(angle, keys);

angle  = -2;
keys = new int[]{Keyboard.KEY_LCONTROL, Keyboard.KEY_R};
Rotation rotateRight = new Rotation(angle, keys);

This is my current algorithm inside the class Rotation:

boolean hit = true;
for (int index = 0; index < keys.length; index++)
{
  if (!Keyboard.isKeyDown(keys[index]))
  {
    hit = false;
  }
}
if (hit)
{
  System.out.println("do something");
}

With this algorithm both rotations would be fired when Keyboard.KEY_LCONTROL and Keyboard.KEY_R has been hit.
I need a member function of the Keyboard class which gives me the exact amount of keys which are currently down, so I can do something like this inside the class:

if (Keyboard.currentNumberOfKeysDown() == keys.length))
{
  boolean hit = true;
  for (int index = 0; index < keys.length; index++)
  {
    if (!Keyboard.isKeyDown(keys[index]))
    {
      hit = false;
    }
  }
  if (hit)
  {
    System.out.println("do something");
  }
}

[bobjob]

so wot i said didnt work??
First class keycheck

if (Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateRight();
}

Second class keycheck

if (!Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) && Keyboard.isKeyDown(Keyboard.KEY_R))
{
  rotateLeft();
}

only dif is the "!" not symble in the secound class with the control button

[ryiden]

It didn't work, because the key assignment is not static. The keys will be assigned in the constructor of the class. I can not do

!Keyboard.isKeyDown(Keyboard.KEY_...)

for all the rest of the keys on my keyboard. Look at the code snippets above.
I can check for the given keys which are assigned in the constructor, but I have to be sure that no other key of the keyboard has been pressed.

[bobjob]

ok ok ok, interesting, dont get y or wot ur doing but 1 way is.. btw is this betalord? cuz he was askn the same question on irc

i dont understand at which key u dont want 2 allow any other key 2 b pressed

but as soon as the key or combo of key is pressed, make an  int = Keyboard.getNumKeyboardEvents();
so that...
button triggered:
int lastKeyState = Keyboard.getNumKeyBoardEvents();
if at any point (Keyboard.getNumKeyBoardEvents() > lastKeyState) then another key has been fired.
dont allow the action from the button trigger 2 take place.
then loop
int lastKeyState = Keyboard.getNumKeyBoardEvents();
if at any point (Keyboard.getNumKeyBoardEvents() > lastKeyState) ....

if u want 2 know specifically which key im not sure how 2 help, if no key is allowed then try that

[ryiden]

In this case I need an extra class with a static key counter, that could work.