OpenGL tic tac toe

i am making a OpenGL tic tac toe game and i would like to make a menu screen where you could us the arrow keys to move a start(*) beside the option.

eg.

* Play a Single Player Game

--Play a Multi-Player Game

--Quit

and the star(*) would move down when you pressed the down arrow key or up when you press the up arrow key.

any suggestions would be nice thank you

EDIT:
the dashes are there just to stop it from going back

Quote:

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Originally Posted by asbo60

i am making a OpenGL tic tac toe game and i would like to make a menu screen where you could us the arrow keys to move a start(*) beside the option.

eg.

* Play a Single Player Game

--Play a Multi-Player Game

--Quit

and the star(*) would move down when you pressed the down arrow key or up when you press the up arrow key.

any suggestions would be nice thank you

EDIT:
the dashes are there just to stop it from going back

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Well, if you know how to draw text to the screen, then it's simple. Have the up/down arrow keys decrease/increase the y displacement of the '*' on the screen on the screen to meet up with each of the options, then based on those displacement coordinates, you can figure out what option is being chosen. If I recall correctly, the function is glRasterPos2f(), but personally, I think it would look much neater of you highlighted the color of the selected option instead.

lol i didnt think of highlighting, i guess that would look better. but how would i go in doing that?

Depends on your implementation, but you may have something along these lines in your code:

Code:

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bool  isSelected[3] = { TRUE, FALSE, FALSE };
short int selection = 0;

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Code:

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int DrawGLScene(GLvoid)
{
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        glLoadIdentity();
        glTranslatef(0.0f,0.0f,-1.0f);
       
        glColor3f(0.0f, 0.0f, isSelected[0] ? 1.0f : 0.5f);
        glRasterPos2f(-0.1f, 0.1f);
        glPrint("New Game");
       
        glColor3f(0.0f, 0.0f, isSelected[1] ? 1.0f : 0.5f);
        glRasterPos2f(-0.1f, 0.0f);
        glPrint("Load Game");
       
        glColor3f(0.0f, 0.0f, isSelected[2] ? 1.0f : 0.5f);
        glRasterPos2f(-0.1f, -0.1f);
        glPrint("Exit Game");
        return TRUE;
}

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...and psudocode for you keypresses may be

Code:

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if (UP is pressed) {
  isSelected[selection] = !isSelected[selection];
  if (selection > 0)
    selection = selection - 1;
  else
    selection = 2;
  isSelected[selection] = !isSelected[selection];
}
if (DOWN is pressed) {
  isSelected[selection] = !isSelected[selection];
  if (selection < 2)
    selection = selection + 1;
  else
    selection = 0;
  isSelected[selection] = !isSelected[selection];
}
if (ENTER is pressed) {
  switch (selection) {
      case 0:
        NewGame();
      case 1:
        LoadGame();
      case 2:
        return 0;
  }
}

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Just to give you an idea of what would be going on.

that worked perfectly with a little Sleep Function in each if statements

thanks for the help

Avoid using sleep functions to slow it down. Try thinking of a logical way of making holding a key no different than tapping it.