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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.ai.sensing.h"
#include "net.minecraft.world.entity.h"
#include "net.minecraft.world.entity.monster.h"
#include "net.minecraft.world.phys.h"
#include "RangedAttackGoal.h"
void RangedAttackGoal::_init(RangedAttackMob *rangedMob, Mob *mob, double speedModifier, int attackIntervalMin, int attackIntervalMax, float attackRadius)
{
//if (!(mob instanceof LivingEntity))
//{
//throw new IllegalArgumentException("ArrowAttackGoal requires Mob implements RangedAttackMob");
//}
rangedAttackMob = rangedMob;
this->mob = mob;
this->speedModifier = speedModifier;
this->attackIntervalMin = attackIntervalMin;
this->attackIntervalMax = attackIntervalMax;
this->attackRadius = attackRadius;
attackRadiusSqr = attackRadius * attackRadius;
setRequiredControlFlags(Control::MoveControlFlag | Control::LookControlFlag);
target = weak_ptr<LivingEntity>();
attackTime = -1;
seeTime = 0;
}
RangedAttackGoal::RangedAttackGoal(RangedAttackMob *rangedMob, Mob *mob, double speedModifier, int attackInterval, float attackRadius)
{
_init(rangedMob, mob, speedModifier, attackInterval, attackInterval, attackRadius);
}
RangedAttackGoal::RangedAttackGoal(RangedAttackMob *rangedMob, Mob *mob, double speedModifier, int attackIntervalMin, int attackIntervalMax, float attackRadius)
{
_init(rangedMob, mob, speedModifier, attackIntervalMin, attackIntervalMax, attackRadius);
}
bool RangedAttackGoal::canUse()
{
shared_ptr<LivingEntity> bestTarget = mob->getTarget();
if (bestTarget == nullptr) return false;
target = weak_ptr<LivingEntity>(bestTarget);
return true;
}
bool RangedAttackGoal::canContinueToUse()
{
return canUse() || !mob->getNavigation()->isDone();
}
void RangedAttackGoal::stop()
{
target = weak_ptr<LivingEntity>();
seeTime = 0;
attackTime = -1;
}
void RangedAttackGoal::tick()
{
// 4J: It's possible the target has gone since canUse selected it, don't do tick if target is null
if (target.lock() == nullptr) return;
double targetDistSqr = mob->distanceToSqr(target.lock()->x, target.lock()->bb->y0, target.lock()->z);
bool canSee = mob->getSensing()->canSee(target.lock());
if (canSee)
{
seeTime++;
}
else
{
seeTime = 0;
}
if (targetDistSqr > attackRadiusSqr || seeTime < 20)
{
mob->getNavigation()->moveTo(target.lock(), speedModifier);
}
else
{
mob->getNavigation()->stop();
}
mob->getLookControl()->setLookAt(target.lock(), 30, 30);
if (--attackTime == 0)
{
if (targetDistSqr > attackRadiusSqr || !canSee) return;
float dist = Mth::sqrt(targetDistSqr) / attackRadius;
float power = dist;
if (power < 0.1f) power = 0.1f;
if (power > 1) power = 1;
rangedAttackMob->performRangedAttack(target.lock(), power);
attackTime = Mth::floor(dist * (attackIntervalMax - attackIntervalMin) + attackIntervalMin);
}
else if (attackTime < 0)
{
float dist = Mth::sqrt(targetDistSqr) / attackRadius;
attackTime = Mth::floor(dist * (attackIntervalMax - attackIntervalMin) + attackIntervalMin);
}
}
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