1 files changed, 258 insertions, 0 deletions
diff --git a/Minecraft.World/Bat.cpp b/Minecraft.World/Bat.cpp
new file mode 100644
index 00000000..d3bd3521
--- /dev/null
+++ b/Minecraft.World/Bat.cpp
@@ -0,0 +1,258 @@
+#include "stdafx.h"
+#include "net.minecraft.world.entity.h"
+#include "net.minecraft.world.entity.ai.attributes.h"
+#include "net.minecraft.world.entity.monster.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.tile.h"
+#include "net.minecraft.world.phys.h"
+#include "Bat.h"
+
+Bat::Bat(Level *level) : AmbientCreature(level)
+{
+	// 4J Stu - This function call had to be moved here from the Entity ctor to ensure that
+	// the derived version of the function is called
+	this->defineSynchedData();
+	registerAttributes();
+	setHealth(getMaxHealth());
+
+	targetPosition = NULL;
+
+	setSize(.5f, .9f);
+	setResting(true);
+}
+
+void Bat::defineSynchedData()
+{
+	AmbientCreature::defineSynchedData();
+
+	entityData->define(DATA_ID_FLAGS, (char) 0);
+}
+
+float Bat::getSoundVolume()
+{
+	return 0.1f;
+}
+
+float Bat::getVoicePitch()
+{
+	return AmbientCreature::getVoicePitch() * .95f;
+}
+
+int Bat::getAmbientSound()
+{
+	if (isResting() && random->nextInt(4) != 0)
+	{
+		return -1;
+	}
+	return eSoundType_MOB_BAT_IDLE; //"mob.bat.idle";
+}
+
+int Bat::getHurtSound()
+{
+	return eSoundType_MOB_BAT_HURT; //"mob.bat.hurt";
+}
+
+int Bat::getDeathSound()
+{
+	return eSoundType_MOB_BAT_DEATH; //"mob.bat.death";
+}
+
+bool Bat::isPushable()
+{
+	// bats can't be pushed by other mobs
+	return false;
+}
+
+void Bat::doPush(shared_ptr<Entity> e)
+{
+	// bats don't push other mobs
+}
+
+void Bat::pushEntities()
+{
+	// bats don't push other mobs
+}
+
+void Bat::registerAttributes()
+{
+	AmbientCreature::registerAttributes();
+
+	getAttribute(SharedMonsterAttributes::MAX_HEALTH)->setBaseValue(6);
+}
+
+bool Bat::isResting()
+{
+	return (entityData->getByte(DATA_ID_FLAGS) & FLAG_RESTING) != 0;
+}
+
+void Bat::setResting(bool value)
+{
+	char current = entityData->getByte(DATA_ID_FLAGS);
+	if (value)
+	{
+		entityData->set(DATA_ID_FLAGS, (char) (current | FLAG_RESTING));
+	}
+	else
+	{
+		entityData->set(DATA_ID_FLAGS, (char) (current & ~FLAG_RESTING));
+	}
+}
+
+bool Bat::useNewAi()
+{
+	return true;
+}
+
+void Bat::tick()
+{
+
+	AmbientCreature::tick();
+
+	if (isResting())
+	{
+		xd = yd = zd = 0;
+		y = Mth::floor(y) + 1.0 - bbHeight;
+	}
+	else
+	{
+		yd *= .6f;
+	}
+
+}
+
+inline int signum(double x) { return (x > 0) - (x < 0); }
+
+void Bat::newServerAiStep()
+{
+	AmbientCreature::newServerAiStep();
+
+	if (isResting())
+	{
+		if (!level->isSolidBlockingTile(Mth::floor(x), (int) y + 1, Mth::floor(z)))
+		{
+			setResting(false);
+			level->levelEvent(nullptr, LevelEvent::SOUND_BAT_LIFTOFF, (int) x, (int) y, (int) z, 0);
+		}
+		else
+		{
+
+			if (random->nextInt(200) == 0)
+			{
+				yHeadRot = random->nextInt(360);
+			}
+
+			if (level->getNearestPlayer(shared_from_this(), 4.0f) != NULL)
+			{
+				setResting(false);
+				level->levelEvent(nullptr, LevelEvent::SOUND_BAT_LIFTOFF, (int) x, (int) y, (int) z, 0);
+			}
+		}
+	}
+	else
+	{
+
+		if (targetPosition != NULL && (!level->isEmptyTile(targetPosition->x, targetPosition->y, targetPosition->z) || targetPosition->y < 1))
+		{
+			delete targetPosition;
+			targetPosition = NULL;
+		}
+		if (targetPosition == NULL || random->nextInt(30) == 0 || targetPosition->distSqr((int) x, (int) y, (int) z) < 4)
+		{
+			delete targetPosition;
+			targetPosition = new Pos((int) x + random->nextInt(7) - random->nextInt(7), (int) y + random->nextInt(6) - 2, (int) z + random->nextInt(7) - random->nextInt(7));
+		}
+
+		double dx = (targetPosition->x + .5) - x;
+		double dy = (targetPosition->y + .1) - y;
+		double dz = (targetPosition->z + .5) - z;
+
+		xd = xd + (signum(dx) * .5f - xd) * .1f;
+		yd = yd + (signum(dy) * .7f - yd) * .1f;
+		zd = zd + (signum(dz) * .5f - zd) * .1f;
+
+		float yRotD = (float) (atan2(zd, xd) * 180 / PI) - 90;
+		float rotDiff = Mth::wrapDegrees(yRotD - yRot);
+		yya = .5f;
+		yRot += rotDiff;
+
+		if (random->nextInt(100) == 0 && level->isSolidBlockingTile(Mth::floor(x), (int) y + 1, Mth::floor(z)))
+		{
+			setResting(true);
+		}
+
+	}
+}
+
+bool Bat::makeStepSound()
+{
+	return false;
+}
+
+void Bat::causeFallDamage(float distance)
+{
+}
+
+void Bat::checkFallDamage(double ya, bool onGround)
+{
+	// this method is empty because flying creatures should
+	// not trigger the "fallOn" tile calls (such as trampling crops)
+}
+
+bool Bat::isIgnoringTileTriggers()
+{
+	return true;
+}
+
+bool Bat::hurt(DamageSource *source, float dmg)
+{
+	if (isInvulnerable()) return false;
+	if (!level->isClientSide)
+	{
+		if (isResting())
+		{
+			setResting(false);
+		}
+	}
+
+	return AmbientCreature::hurt(source, dmg);
+}
+
+void Bat::readAdditionalSaveData(CompoundTag *tag)
+{
+	AmbientCreature::readAdditionalSaveData(tag);
+
+	entityData->set(DATA_ID_FLAGS, tag->getByte(L"BatFlags"));
+}
+
+void Bat::addAdditonalSaveData(CompoundTag *entityTag)
+{
+	AmbientCreature::addAdditonalSaveData(entityTag);
+
+	entityTag->putByte(L"BatFlags", entityData->getByte(DATA_ID_FLAGS));
+}
+
+
+bool Bat::canSpawn()
+{
+	int yt = Mth::floor(bb->y0);
+	if (yt >= level->seaLevel) return false;
+
+	int xt = Mth::floor(x);
+	int zt = Mth::floor(z);
+
+	int br = level->getRawBrightness(xt, yt, zt);
+	int maxLight = 4;
+
+	if ((Calendar::GetDayOfMonth() + 1 == 10 && Calendar::GetDayOfMonth() >= 20) || (Calendar::GetMonth() + 1 == 11 && Calendar::GetMonth() <= 3))
+	{
+		maxLight = 7;
+	}
+	else if (random->nextBoolean())
+	{
+		return false;
+	}
+
+	if (br > random->nextInt(maxLight)) return false;
+
+	return AmbientCreature::canSpawn();
+}
+\ No newline at end of file