1 files changed, 157 insertions, 0 deletions
diff --git a/Minecraft.World/LeashFenceKnotEntity.cpp b/Minecraft.World/LeashFenceKnotEntity.cpp
new file mode 100644
index 00000000..21f98a6a
--- /dev/null
+++ b/Minecraft.World/LeashFenceKnotEntity.cpp
@@ -0,0 +1,157 @@
+#include "stdafx.h"
+#include "net.minecraft.world.entity.player.h"
+#include "net.minecraft.world.item.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.phys.h"
+#include "LeashFenceKnotEntity.h"
+
+void LeashFenceKnotEntity::_init()
+{
+	defineSynchedData();
+}
+
+LeashFenceKnotEntity::LeashFenceKnotEntity(Level *level) : HangingEntity(level)
+{
+	_init();
+}
+
+LeashFenceKnotEntity::LeashFenceKnotEntity(Level *level, int xTile, int yTile, int zTile) : HangingEntity(level, xTile, yTile, zTile, 0)
+{
+	_init();
+	setPos(xTile + .5, yTile + .5, zTile + .5);
+}
+
+void LeashFenceKnotEntity::defineSynchedData()
+{
+	HangingEntity::defineSynchedData();
+}
+
+void LeashFenceKnotEntity::setDir(int dir)
+{
+	// override to do nothing, knots don't have directions
+}
+
+int LeashFenceKnotEntity::getWidth()
+{
+	return 9;
+}
+
+int LeashFenceKnotEntity::getHeight()
+{
+	return 9;
+}
+
+bool LeashFenceKnotEntity::shouldRenderAtSqrDistance(double distance)
+{
+	return distance < 32 * 32;
+}
+
+void LeashFenceKnotEntity::dropItem(shared_ptr<Entity> causedBy)
+{
+
+}
+
+bool LeashFenceKnotEntity::save(CompoundTag *entityTag)
+{
+	// knots are not saved, they are recreated by the entities that are tied
+	return false;
+}
+
+void LeashFenceKnotEntity::addAdditonalSaveData(CompoundTag *tag)
+{
+}
+
+void LeashFenceKnotEntity::readAdditionalSaveData(CompoundTag *tag)
+{
+}
+
+bool LeashFenceKnotEntity::interact(shared_ptr<Player> player)
+{
+	shared_ptr<ItemInstance> item = player->getCarriedItem();
+
+	bool attachedMob = false;
+	if (item != NULL && item->id == Item::lead_Id)
+	{
+		if (!level->isClientSide)
+		{
+			// look for entities that can be attached to the fence
+			double range = 7;
+			vector<shared_ptr<Entity> > *mobs = level->getEntitiesOfClass(typeid(Mob), AABB::newTemp(x - range, y - range, z - range, x + range, y + range, z + range));
+			if (mobs != NULL)
+			{
+				for(AUTO_VAR(it, mobs->begin()); it != mobs->end(); ++it)
+				{
+					shared_ptr<Mob> mob = dynamic_pointer_cast<Mob>( *it );
+					if (mob->isLeashed() && mob->getLeashHolder() == player)
+					{
+						mob->setLeashedTo(shared_from_this(), true);
+						attachedMob = true;
+					}
+				}
+				delete mobs;
+			}
+		}
+	}
+	if (!level->isClientSide && !attachedMob)
+	{
+		remove();
+
+		if (player->abilities.instabuild)
+		{
+			// if the player is in creative mode, attempt to remove all leashed mobs without dropping additional items
+			double range = 7;
+			vector<shared_ptr<Entity> > *mobs = level->getEntitiesOfClass(typeid(Mob), AABB::newTemp(x - range, y - range, z - range, x + range, y + range, z + range));
+			if (mobs != NULL)
+			{
+				for(AUTO_VAR(it, mobs->begin()); it != mobs->end(); ++it)
+				{
+					shared_ptr<Mob> mob = dynamic_pointer_cast<Mob>( *it );
+					if (mob->isLeashed() && mob->getLeashHolder() == shared_from_this())
+					{
+						mob->dropLeash(true, false);
+					}
+				}
+				delete mobs;
+			}
+		}
+	}
+	return true;
+}
+
+bool LeashFenceKnotEntity::survives()
+{
+	// knots are placed on top of fence tiles
+	int tile = level->getTile(xTile, yTile, zTile);
+	if (Tile::tiles[tile] != NULL && Tile::tiles[tile]->getRenderShape() == Tile::SHAPE_FENCE)
+	{
+		return true;
+	}
+	return false;
+}
+
+shared_ptr<LeashFenceKnotEntity> LeashFenceKnotEntity::createAndAddKnot(Level *level, int x, int y, int z)
+{
+	shared_ptr<LeashFenceKnotEntity> knot = shared_ptr<LeashFenceKnotEntity>( new LeashFenceKnotEntity(level, x, y, z) );
+	knot->forcedLoading = true;
+	level->addEntity(knot);
+	return knot;
+}
+
+shared_ptr<LeashFenceKnotEntity> LeashFenceKnotEntity::findKnotAt(Level *level, int x, int y, int z)
+{
+	vector<shared_ptr<Entity> > *knots = level->getEntitiesOfClass(typeid(LeashFenceKnotEntity), AABB::newTemp(x - 1.0, y - 1.0, z - 1.0, x + 1.0, y + 1.0, z + 1.0));
+	if (knots != NULL)
+	{
+		for(AUTO_VAR(it, knots->begin()); it != knots->end(); ++it)
+		{
+			shared_ptr<LeashFenceKnotEntity> knot = dynamic_pointer_cast<LeashFenceKnotEntity>( *it );
+			if (knot->xTile == x && knot->yTile == y && knot->zTile == z)
+			{
+				delete knots;
+				return knot;
+			}
+		}
+		delete knots;
+	}
+	return nullptr;
+}
+\ No newline at end of file