Заклинание "Fear" - одна из первых тем в Героях 3, которая меня заинтересовала настолько, что я начал копаться в коде игры. Вот объяснение бага:
In RoE 1.0 and 1.1 you couldn't get spells with odd IDs from pyramids because of a bug. So you couldn't get Earth Elemental (#67) and Air Elemental (#69) there. Instead of Earth Elemental you always learned Fire Elemental, and instead of Air Elemental - Water Elemental. Thus those two spells (Fire Elemental and Water Elemental) had double chances to appear in a pyramid.
Moreover, in RoE 1.0 and 1.1 from pyramids you could get spells which didn't belong to any magic school (those spells with magic school not set in sptraits.txt). The only spell in sptraits.txt, which magic school wasn't set, was "Fear ( disabled )" (#57), but, because of the aforementioned bug, instead of Fear you learned Frenzy (#56).
In RoE 1.2 the bug with odd spell IDs was fixed. Finally you could get Earth Elemental and Air Elemental from pyramids, but you still could get spell #57 (Fear), which had no longer been replaced with Frenzy (thanks to the fix introduced by patch 1.2).
In RoE 1.3 the bug with Fear was finally fixed. So, the only version of RoE, where you can see Fear, is 1.2.
AlexSpl, In AB 2.0 is it also appear from pyramids, but not add to magic book
2Roman2211: You are right. You can also see Fear in AB 2.0. As far as I know, patch 1.3 for RoE and 2.1 for AB were twins and both were released in March 2000.
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