Get position relative to unit

// left = 90 | right = -90
{
        Unit* unit;
        float dist;
        int deg;

        float o = unit->GetOrientation() + (deg*M_PI/180);
        o = Position::NormalizeOrientation(o);
        float x = unit->GetPositionX()+(dist*cosf(o));
        float y = unit->GetPositionY()+(dist*sinf(o));
        float z = unit->GetMap()->GetHeight(unit->GetPhaseMask(), x, y, MAX_HEIGHT);
        if(z == INVALID_HEIGHT)
            z = unit->GetPositionZ();
}