Scripts

Thanks, I'll try it now.
Of course, this is only half of the script — for the attacker — I decided not to clutter the forum and your feed with extra unreadable scripts. I'll make the defender's one based on the attacker's template.

Added 1 hour 31 minutes later
Something isn't working.
MapScript is complaining (Script) ERROR: Parameter lost: function name.

path = '/'..GetMapDataPath()
main_hero = 'Raelag'
print("Main Hero named");

SetHeroCombatScript('Raelag', path.."CombatScript.xdb#xpointer(/Script)");
print("Combat script launched");

LevR = GetHeroLevel('Raelag');
print("LevR set as Raelag's level determiner");

function HeroLevelSaveF()
SetGameVar("LevR", GetGameVar("LevR")+1); --Increment the hero level variable by 1
print("Set that LevR is SetGameVar");
end

SetGameVar("LevR", 1)
Trigger(HERO_LEVELUP_TRIGGER, "Raelag")

I tried changing the function name — nothing changes.

 

I tried removing LevR = GetHeroLevel('Raelag'); (it seemed to me that Trigger(HERO_LEVELUP_TRIGGER, "Raelag") is quite sufficient, and maybe that's the case. Should I remove LevR = GetHeroLevel('Raelag') or not?) — nothing changed either, (Script) ERROR: Parameter lost: function name.

The combat script seems correct, but Raelag still casts Rock, and the game doesn't see that he is level 20. Here is the script, just in case:

function Start()

Level_R = GetGameVar("LevR") + 0;
print("Level_R óñòàíîâëåí êàê îïðåäåëèòåëü óðîâíÿ Ðàèëàãà ìàòü åãî â áîþ è çàâèñèò îò LevR");

    if GetHeroName(GetAttackerHero()) == 'Raelag' then
        print("åñëè ÃÃ àãðåññîð");
        local mana = GetUnitManaPoints(GetAttackerHero());
        SetUnitManaPoints(GetAttackerHero(), 200);
        repeat sleep(1) until GetUnitManaPoints(GetAttackerHero())==200;
        sleep(1);
         if Level_R < 20 then
          print("åñëè óðîâåíü ìåíüøå 20, òî");
           for i, creature in GetDefenderCreatures() do
             startThread(UnitCastAimedSpell, GetAttackerHero(), 4, creature);
              print("êàñòóåì ãëûáó");
                 end;
               SetUnitManaPoints(GetAttackerHero(), mana);
                print("âîçâðàùàåì ìàíó");
            else
            print("åñëè óðîâåíü 20 è áîëüøå, òî");
              for i, creature in GetDefenderCreatures() do
               startThread(UnitCastAimedSpell, GetAttackerHero(), 5, creature);
                print("êàñòóåì øàð");
                end
                 SetUnitManaPoints(GetAttackerHero(), mana);
                  print("âîçâðàùàåì ìàíó");
                   end
    else
    if GetHeroName(GetDefenderHero()) == 'Raelag' then
        print("åñëè ÃÃ àãðåññîð");
        local mana = GetUnitManaPoints(GetDefenderHero())
        SetUnitManaPoints(GetDefenderHero(), 200);
        repeat sleep(1) until GetUnitManaPoints(GetDefenderHero())==200
        sleep(1);
         if Level_R < 20 then
          print("åñëè óðîâåíü ìåíüøå 20, òî");
           for i, creature in GetAttackerCreatures() do
            startThread(UnitCastAimedSpell, GetDefenderHero(), 4, creature);
             print("êàñòóåì ãëûáó");
             end;
              SetUnitManaPoints(GetDefenderHero(), mana);
             else
             print("åñëè óðîâåíü 20 è áîëüøå, òî");
               for i, creature in GetAttackerCreatures() do
                startThread(UnitCastAimedSpell, GetDefenderHero(), 5, creature);
                 print("êàñòóåì øàð");
                  end;
                  SetUnitManaPoints(GetDefenderHero(), mana);
                   print("âîçâðàùàåì ìàíó");
                     end
                   end;
                  end;
                end;

Sorry if the Russian text doesn't display, but everything seems clear anyway.

Added 3 minutes later
Maybe there's a mistake in the Map script here? Or some extra brackets or quotes?

SetGameVar("LevR", GetGameVar("LevR")+1);