4jcraft/Minecraft.World/AI/Goals/MeleeAttackGoal.cpp
2026-03-13 17:06:56 -05:00

95 lines
3.1 KiB
C++

#include "../../Platform/stdafx.h"
#include "../../Headers/net.minecraft.world.entity.h"
#include "../../Headers/net.minecraft.world.entity.monster.h"
#include "../../Headers/net.minecraft.world.level.h"
#include "../../Headers/net.minecraft.world.entity.ai.control.h"
#include "../../Headers/net.minecraft.world.entity.ai.navigation.h"
#include "../../Headers/net.minecraft.world.entity.ai.sensing.h"
#include "../../Headers/net.minecraft.world.phys.h"
#include "MeleeAttackGoal.h"
#include "../Navigation/Path.h"
void MeleeAttackGoal::_init(Mob* mob, float speed, bool trackTarget) {
this->attackType = eTYPE_NOTSET;
this->mob = mob;
this->level = mob->level;
this->speed = speed;
this->trackTarget = trackTarget;
setRequiredControlFlags(Control::MoveControlFlag |
Control::LookControlFlag);
attackTime = 0;
path = NULL;
timeToRecalcPath = 0;
}
MeleeAttackGoal::MeleeAttackGoal(Mob* mob, eINSTANCEOF attackType, float speed,
bool trackTarget) {
_init(mob, speed, trackTarget);
this->attackType = attackType;
}
MeleeAttackGoal::MeleeAttackGoal(Mob* mob, float speed, bool trackTarget) {
_init(mob, speed, trackTarget);
}
MeleeAttackGoal::~MeleeAttackGoal() {
if (path != NULL) delete path;
}
bool MeleeAttackGoal::canUse() {
std::shared_ptr<Mob> bestTarget = mob->getTarget();
if (bestTarget == NULL) return false;
if (!bestTarget->isAlive()) return false;
if (attackType != eTYPE_NOTSET &&
(attackType & bestTarget->GetType()) != attackType)
return false;
target = std::weak_ptr<Mob>(bestTarget);
delete path;
path = mob->getNavigation()->createPath(target.lock());
return path != NULL;
}
bool MeleeAttackGoal::canContinueToUse() {
std::shared_ptr<Mob> bestTarget = mob->getTarget();
if (bestTarget == NULL) return false;
if (target.lock() == NULL || !target.lock()->isAlive()) return false;
if (!trackTarget) return !mob->getNavigation()->isDone();
if (!mob->isWithinRestriction(Mth::floor(target.lock()->x),
Mth::floor(target.lock()->y),
Mth::floor(target.lock()->z)))
return false;
return true;
}
void MeleeAttackGoal::start() {
mob->getNavigation()->moveTo(path, speed);
path = NULL;
timeToRecalcPath = 0;
}
void MeleeAttackGoal::stop() {
target = std::weak_ptr<Mob>();
mob->getNavigation()->stop();
}
void MeleeAttackGoal::tick() {
mob->getLookControl()->setLookAt(target.lock(), 30, 30);
if (trackTarget || mob->getSensing()->canSee(target.lock())) {
if (--timeToRecalcPath <= 0) {
timeToRecalcPath = 4 + mob->getRandom()->nextInt(7);
mob->getNavigation()->moveTo(target.lock(), speed);
}
}
attackTime = std::max(attackTime - 1, 0);
double meleeRadiusSqr = (mob->bbWidth * 2) * (mob->bbWidth * 2);
if (mob->distanceToSqr(target.lock()->x, target.lock()->bb->y0,
target.lock()->z) > meleeRadiusSqr)
return;
if (attackTime > 0) return;
attackTime = 20;
mob->doHurtTarget(target.lock());
}