Thread: GLUT Keyboard Reaction Help

Hey there!

I finally got GLUT working, and am currently on my way to a complete program. But right now I just have a square that you can move around the screen.

But I noticed that with the glutKeyboardFunc(), in order for you to move, you have to wait for the keyboard repeat delay. Is there anyway to fix this?

Thanks!
~Matt

Try something like this:

Code:

bool key_state[256] = { false };

void update_func()
{
    if(key_state['a'] == true) {
        // move left
    }

    if(key_state['d'] == true) {
        // move right
    }

    if(key_state['w'] == true) {
        // move up
    }

    if(key_state['s'] == true) {
        // move down
    }
}

void key_down_func(unsigned char key, int x, int y)
{
    key_state[key] = true;
}

void key_up_func(unsigned char key, int x, int y)
{
    key_state[key] = false;
}



int main(int argc, char *argv[])
{
    glutInit(&argc, argv);

    glutInitWindowSize(800, 600);
    glutInitWindowPosition(0, 0);

    glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE);
    glutCreateWindow("Foobar");

    glutDisplayFunc(update_func);
    glutIdleFunc(update_func);

    glutKeyboardFunc(key_down_func);
    glutKeyboardUpFunc(key_up_func);

    glutIgnoreKeyRepeat(true);

    glutMainLoop();

    return 0;
}

Try something like this:

Yeah, that's what I do. It works so well, I have to ADD a delay sometimes because the repeat rate is way too fast.