Function loopi

source/src/physics.cpp:365–389

    float h = pl->eyeheightvel * speed / moveres;

    loopi(moveres)
    {
        pl->eyeheight += h;
        pl->o.z += h;
        if(collide(pl) && !(pl != player1 && player1->isspectating() && player1->spectatemode < SM_FLY))
        {
            pl->eyeheight -= h; // collided, revert mini-step
            pl->o.z -= h;
            break;
        }
        if(pl->eyeheight<min) // clamp to min
        {
            pl->o.z += min - pl->eyeheight;
            pl->eyeheight = min;
            pl->eyeheightvel = 0.0f;
            break;
        }
        if(pl->eyeheight>max)
        {
            pl->o.z -= pl->eyeheight - max;
            pl->eyeheight = max;
            pl->eyeheightvel = 0.0f;
            break;
        }
    }
}

// main physics routine, moves a player/monster for a curtime step