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#include "stdafx.h"
#include "net.minecraft.world.entity.ai.control.h"
#include "net.minecraft.world.entity.ai.navigation.h"
#include "net.minecraft.world.entity.h"
#include "net.minecraft.world.entity.animal.h"
#include "net.minecraft.world.level.h"
#include "net.minecraft.world.phys.h"
#include "FollowOwnerGoal.h"
FollowOwnerGoal::FollowOwnerGoal(TamableAnimal *tamable, double speedModifier, float startDistance, float stopDistance)
{
owner = weak_ptr<Mob>();
timeToRecalcPath = 0;
oldAvoidWater = false;
this->tamable = tamable;
level = tamable->level;
this->speedModifier = speedModifier;
navigation = tamable->getNavigation();
this->startDistance = startDistance;
this->stopDistance = stopDistance;
setRequiredControlFlags(Control::MoveControlFlag | Control::LookControlFlag);
}
bool FollowOwnerGoal::canUse()
{
shared_ptr<LivingEntity> owner = dynamic_pointer_cast<LivingEntity>( tamable->getOwner() );
if (owner == nullptr) return false;
if (tamable->isSitting()) return false;
if (tamable->distanceToSqr(owner) < startDistance * startDistance) return false;
this->owner = weak_ptr<LivingEntity>(owner);
return true;
}
bool FollowOwnerGoal::canContinueToUse()
{
return owner.lock() != nullptr && !navigation->isDone() && tamable->distanceToSqr(owner.lock()) > stopDistance * stopDistance && !tamable->isSitting();
}
void FollowOwnerGoal::start()
{
timeToRecalcPath = 0;
oldAvoidWater = tamable->getNavigation()->getAvoidWater();
tamable->getNavigation()->setAvoidWater(false);
}
void FollowOwnerGoal::stop()
{
owner = weak_ptr<Mob>();
navigation->stop();
tamable->getNavigation()->setAvoidWater(oldAvoidWater);
}
void FollowOwnerGoal::tick()
{
tamable->getLookControl()->setLookAt(owner.lock(), 10, tamable->getMaxHeadXRot());
if (tamable->isSitting()) return;
if (--timeToRecalcPath > 0) return;
timeToRecalcPath = 10;
if (navigation->moveTo(owner.lock(), speedModifier)) return;
if (tamable->isLeashed()) return;
if (tamable->distanceToSqr(owner.lock()) < TeleportDistance * TeleportDistance) return;
// find a good spawn position nearby the owner
int sx = Mth::floor(owner.lock()->x) - 2;
int sz = Mth::floor(owner.lock()->z) - 2;
int y = Mth::floor(owner.lock()->bb->y0);
for (int x = 0; x <= 4; x++)
{
for (int z = 0; z <= 4; z++)
{
if (x >= 1 && z >= 1 && x <= 3 && z <= 3)
{
continue;
}
if (level->isTopSolidBlocking(sx + x, y - 1, sz + z) && !level->isSolidBlockingTile(sx + x, y, sz + z) && !level->isSolidBlockingTile(sx + x, y + 1, sz + z))
{
tamable->moveTo(sx + x + .5f, y, sz + z + .5f, tamable->yRot, tamable->xRot);
navigation->stop();
return;
}
}
}
}
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