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Is it possible to make it so that when a hero enters a region for the first time, one function is executed, and upon subsequent entries, a different function is executed?
And also, regarding this code:
```
if GetSavedCombatArmyHero(a1,0)=="Giovanni" then
Loose();
end;
if (GetSavedCombatArmyHero(a1,1)=="Giovanni") and (GetSavedCombatArmyHero(a1,0)=="Zehir") then
MessageBox(GetMapDataPath().."talk_of_grigorio_6.txt");
SetObjectiveState("kill_pl5", OBJECTIVE_COMPLETED, PLAYER_1 );
SetPlayerResource(PLAYER_1 ,GOLD, GetPlayerResource(PLAYER_1 , GOLD)+20000);
end;
```
What do (a1,0/1) represent here?
