How to rotate a triangle?

Hello,

I have drawn a 3D triangle and I would like the user to be able to rotate the triangle by pressing the left, right, up or down buttons.
I have succeeded with the rotation by using the following code, but if the user rotates the triangle to, let´s say, the left (by pressing the left button) and then rotate it upwards (by pressing the up button), the rotation starts over, which means the triangle´s position is getting the start values, but I want the triangle to continue the rotation from where it last stopped. The rotation continues from where it last stoppep if I just rotate it with the left and right buttons OR just rotate it with the up and down buttons, but if I mix the rotation by rotating it up and then rotate it to left, then it starts over. Here comes the code:

``````if(keyDirectionLeftRight)
{
gl.glRotatef(cameraView, 0.0f, 1.0f, 0.0f);
gl.glRotatef(cameraView, 0.0f, 1.0f, 0.0f);
gl.glRotatef(cameraView, 0.0f, 1.0f, 0.0f);
gl.glRotatef(cameraView, 0.0f, 1.0f, 0.0f);
}
else // if the user has pressed up och down button, then keyDirectionLeftRight = false
{
gl.glRotatef(cameraView, 1.0f, 0.0f, 0.0f);
gl.glRotatef(cameraView, 1.0f, 0.0f, 0.0f);
gl.glRotatef(cameraView, 1.0f, 0.0f, 0.0f);
gl.glRotatef(cameraView, 1.0f, 0.0f, 0.0f);
}
``````

And here goes the KeyListener:

``````public void keyPressed(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
cameraView += 3.0f;
System.out.println(cameraView);
keyDirectionLeftRight = true;
}
else if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
cameraView -= 3.0f;
System.out.println(cameraView);
keyDirectionLeftRight = true;
}
else if(e.getKeyCode() == KeyEvent.VK_UP)
{
cameraView += 3.0f;
System.out.println(cameraView);
keyDirectionLeftRight = false;
}
else if(e.getKeyCode() == KeyEvent.VK_DOWN)
{
cameraView -= 3.0f;
System.out.println(cameraView);
keyDirectionLeftRight = false;
}
}]
``````

Are you using static variables in your code??? They should help you out as they retain values.

Actually, I got it working yesterday. I have no clue what change I made or what it was that made it working. I guess it was something about the updating of the rotate-variable values, but I´m not sure.