Sets specific health level. It will use the cutoff value as returned by 'GetHealthLevelValue' as the health value for the given health level, which means it will always be set to the max health as allowed by the given health level.
См. определение в файле Object.c строка 1096
Перекрестные ссылки GetHealthLevelValue() и SetHealth01().
Используется в AddHealthLevel().