Link Active Script, Flicker When Hit

link script FlickerWhenHit_Active
{
    void run()
    {
        int frame = 0;
        while(Link->HP > 0) //If Link was hurt by anything.
        {
            ++frame;  //frame 1 starts immediately.

            //every game loop, frame will increase by '1', and will eventually roll over.

            //do things base on the frame timer:
            if ( frame&1 && Game->DCounter[CR_LIFE] ) //if the frame is odd
            {
                //flicker Link
                Link->Invisible = true;
            }
            else //the frame is even
            {
                Link->Invisible = false;
            }

            if ( frame > 100000 ) //no need to constantly check
            {
                //reset to 1
                frame = 1;
                //now we won't roll over
            }

            Waitdraw();
            Waitframe();
        }
        Link->Invisible = false; //clear this status if he is dying, and we'll run his onDeath script.
    }
}