113 lines
3.0 KiB
C++
113 lines
3.0 KiB
C++
#include "stdafx.h"
|
|
#include "net.minecraft.world.entity.ai.navigation.h"
|
|
#include "net.minecraft.world.entity.ai.sensing.h"
|
|
#include "net.minecraft.world.entity.h"
|
|
#include "net.minecraft.world.entity.animal.h"
|
|
#include "net.minecraft.world.entity.player.h"
|
|
#include "net.minecraft.world.level.pathfinder.h"
|
|
#include "net.minecraft.world.phys.h"
|
|
#include "TargetGoal.h"
|
|
|
|
void TargetGoal::_init(Mob *mob, float within, bool mustSee, bool mustReach)
|
|
{
|
|
reachCache = EmptyReachCache;
|
|
reachCacheTime = 0;
|
|
unseenTicks = 0;
|
|
|
|
this->mob = mob;
|
|
this->within = within;
|
|
this->mustSee = mustSee;
|
|
this->mustReach = mustReach;
|
|
}
|
|
|
|
TargetGoal::TargetGoal(Mob *mob, float within, bool mustSee)
|
|
{
|
|
_init(mob, within, mustSee, false);
|
|
}
|
|
|
|
TargetGoal::TargetGoal(Mob *mob, float within, bool mustSee, bool mustReach)
|
|
{
|
|
_init(mob,within,mustSee,mustReach);
|
|
}
|
|
|
|
bool TargetGoal::canContinueToUse()
|
|
{
|
|
std::shared_ptr<Mob> target = mob->getTarget();
|
|
if (target == NULL) return false;
|
|
if (!target->isAlive()) return false;
|
|
if (mob->distanceToSqr(target) > within * within) return false;
|
|
if (mustSee)
|
|
{
|
|
if (mob->getSensing()->canSee(target))
|
|
{
|
|
unseenTicks = 0;
|
|
}
|
|
else
|
|
{
|
|
if (++unseenTicks > UnseenMemoryTicks) return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void TargetGoal::start()
|
|
{
|
|
reachCache = EmptyReachCache;
|
|
reachCacheTime = 0;
|
|
unseenTicks = 0;
|
|
}
|
|
|
|
void TargetGoal::stop()
|
|
{
|
|
mob->setTarget(nullptr);
|
|
}
|
|
|
|
bool TargetGoal::canAttack(std::shared_ptr<Mob> target, bool allowInvulnerable)
|
|
{
|
|
if (target == NULL) return false;
|
|
if (target == mob->shared_from_this()) return false;
|
|
if (!target->isAlive()) return false;
|
|
if (!mob->canAttackType(target->GetType())) return false;
|
|
|
|
std::shared_ptr<TamableAnimal> tamableAnimal = std::dynamic_pointer_cast<TamableAnimal>(mob->shared_from_this());
|
|
if (tamableAnimal != NULL && tamableAnimal->isTame())
|
|
{
|
|
std::shared_ptr<TamableAnimal> tamableTarget = std::dynamic_pointer_cast<TamableAnimal>(target);
|
|
if (tamableTarget != NULL && tamableTarget->isTame()) return false;
|
|
if (target == tamableAnimal->getOwner()) return false;
|
|
}
|
|
else if (std::dynamic_pointer_cast<Player>(target) != NULL)
|
|
{
|
|
if (!allowInvulnerable && (std::dynamic_pointer_cast<Player>(target))->abilities.invulnerable) return false;
|
|
}
|
|
|
|
if (!mob->isWithinRestriction(Mth::floor(target->x), Mth::floor(target->y), Mth::floor(target->z))) return false;
|
|
|
|
if (mustSee && !mob->getSensing()->canSee(target)) return false;
|
|
|
|
if (mustReach)
|
|
{
|
|
if (--reachCacheTime <= 0) reachCache = EmptyReachCache;
|
|
if (reachCache == EmptyReachCache) reachCache = canReach(target) ? CanReachCache : CantReachCache;
|
|
if (reachCache == CantReachCache) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool TargetGoal::canReach(std::shared_ptr<Mob> target)
|
|
{
|
|
reachCacheTime = 10 + mob->getRandom()->nextInt(5);
|
|
Path *path = mob->getNavigation()->createPath(target);
|
|
if (path == NULL) return false;
|
|
Node *last = path->last();
|
|
if (last == NULL)
|
|
{
|
|
delete path;
|
|
return false;
|
|
}
|
|
int xx = last->x - Mth::floor(target->x);
|
|
int zz = last->z - Mth::floor(target->z);
|
|
delete path;
|
|
return xx * xx + zz * zz <= 1.5 * 1.5;
|
|
} |