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91 lines
3 KiB
C++
91 lines
3 KiB
C++
#include "PlayGoal.h"
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#include <limits>
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#include <optional>
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#include <vector>
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#include "java/Random.h"
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#include "minecraft/world/entity/Entity.h"
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#include "minecraft/world/entity/LivingEntity.h"
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#include "minecraft/world/entity/PathfinderMob.h"
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#include "minecraft/world/entity/ai/control/Control.h"
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#include "minecraft/world/entity/ai/navigation/PathNavigation.h"
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#include "minecraft/world/entity/ai/util/RandomPos.h"
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#include "minecraft/world/entity/npc/Villager.h"
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#include "minecraft/world/level/Level.h"
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#include "minecraft/world/phys/AABB.h"
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#include "minecraft/world/phys/Vec3.h"
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PlayGoal::PlayGoal(Villager* mob, double speedModifier) {
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followFriend = std::weak_ptr<LivingEntity>();
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wantedX = wantedY = wantedZ = 0.0;
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playTime = 0;
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this->mob = mob;
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this->speedModifier = speedModifier;
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setRequiredControlFlags(Control::MoveControlFlag);
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}
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bool PlayGoal::canUse() {
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if (mob->getAge() >= 0) return false;
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if (mob->getRandom()->nextInt(400) != 0) return false;
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AABB mob_bb = mob->bb.grow(6, 3, 6);
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std::vector<std::shared_ptr<Entity> >* children =
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mob->level->getEntitiesOfClass(typeid(Villager), &mob_bb);
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double closestDistSqr = std::numeric_limits<double>::max();
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// for (Entity c : children)
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for (auto it = children->begin(); it != children->end(); ++it) {
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std::shared_ptr<Entity> c = *it;
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if (c.get() == mob) continue;
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std::shared_ptr<Villager> friendV =
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std::dynamic_pointer_cast<Villager>(c);
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if (friendV->isChasing()) continue;
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if (friendV->getAge() >= 0) continue;
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double distSqr = friendV->distanceToSqr(mob->shared_from_this());
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if (distSqr > closestDistSqr) continue;
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closestDistSqr = distSqr;
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followFriend = std::weak_ptr<LivingEntity>(friendV);
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}
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delete children;
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if (followFriend.lock() == nullptr) {
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auto pos = RandomPos::getPos(
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std::dynamic_pointer_cast<PathfinderMob>(mob->shared_from_this()),
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16, 3);
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if (!pos.has_value()) return false;
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}
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return true;
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}
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bool PlayGoal::canContinueToUse() {
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return playTime > 0 && followFriend.lock() != nullptr;
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}
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void PlayGoal::start() {
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if (followFriend.lock() != nullptr) mob->setChasing(true);
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playTime = 1000;
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}
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void PlayGoal::stop() {
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mob->setChasing(false);
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followFriend = std::weak_ptr<LivingEntity>();
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}
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void PlayGoal::tick() {
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--playTime;
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if (followFriend.lock() != nullptr) {
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if (mob->distanceToSqr(followFriend.lock()) > 2 * 2)
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mob->getNavigation()->moveTo(followFriend.lock(), speedModifier);
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} else {
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if (mob->getNavigation()->isDone()) {
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auto pos =
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RandomPos::getPos(std::dynamic_pointer_cast<PathfinderMob>(
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mob->shared_from_this()),
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16, 3);
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if (!pos.has_value()) return;
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mob->getNavigation()->moveTo(pos->x, pos->y, pos->z, speedModifier);
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}
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}
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}
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