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VCAI: safety checks to avoid crashes with boat objects

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Probably we should rewrite boat-related code to make AI boat handling easier.
This commit is contained in:
Arseniy Shestakov 2016-09-14 03:44:35 +03:00
parent f623865991
commit 7ec9601acd
1 changed files with 20 additions and 5 deletions
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19
AI/VCAI/VCAI.cpp
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@ -115,15 +115,16 @@ void VCAI::heroMoved(const TryMoveHero & details)
NET_EVENT_HANDLER;
validateObject(details.id); //enemy hero may have left visible area
auto hero = cb->getHero(details.id);
cachedSectorMaps.clear();
if(details.result == TryMoveHero::TELEPORTATION)
{
const int3 from = CGHeroInstance::convertPosition(details.start, false),
to = CGHeroInstance::convertPosition(details.end, false);
const CGObjectInstance *o1 = vstd::frontOrNull(cb->getVisitableObjs(from)),
*o2 = vstd::frontOrNull(cb->getVisitableObjs(to));
if(details.result == TryMoveHero::TELEPORTATION)
{
auto t1 = dynamic_cast<const CGTeleport *>(o1);
auto t2 = dynamic_cast<const CGTeleport *>(o2);
if(t1 && t2)
@ -139,6 +140,17 @@ void VCAI::heroMoved(const TryMoveHero & details)
}
}
}
else if(details.result == TryMoveHero::EMBARK && hero)
{
//make sure AI not attempt to visit used boat
validateObject(hero->boat);
}
else if(details.result == TryMoveHero::DISEMBARK && o1)
{
auto boat = dynamic_cast<const CGBoat *>(o1);
if(boat)
addVisitableObj(boat);
}
}
void VCAI::stackChagedCount(const StackLocation &location, const TQuantity &change, bool isAbsolute)
@ -405,6 +417,9 @@ void VCAI::objectRemoved(const CGObjectInstance *obj)
{
vstd::erase_if_present(visitableObjs, hero->boat);
vstd::erase_if_present(alreadyVisited, hero->boat);
for (auto h : cb->getHeroesInfo())
unreserveObject(h, hero->boat);
}
}