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Can you tell me if the script is written correctly?
```
function Fight(heroname)
if heroname == 'Ish' then
if HasArtefact(Fight, ARTIFACT_HELM_OF_ENLIGHTENMENT) then
SetObjectPosition('rav', 105, 74, floor = -1);
Trigger(REGION_ENTER_AND_STOP_TRIGGER, 'art', nil);
end;
end;
end;
Trigger(REGION_ENTER_AND_STOP_TRIGGER, 'art', 'Fight');
```
I need it so that when a hero enters a specific area and has the Helm of Enlightenment in their inventory, the enemy is moved.