1 files changed, 105 insertions, 0 deletions
diff --git a/Minecraft.World/RangedAttackGoal.cpp b/Minecraft.World/RangedAttackGoal.cpp
new file mode 100644
index 00000000..2923e011
--- /dev/null
+++ b/Minecraft.World/RangedAttackGoal.cpp
@@ -0,0 +1,105 @@
+#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 == NULL) 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() == NULL) 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);
+	}
+}
+\ No newline at end of file