6874c358ea
----- Co-authored-by: sfan5 <sfan5@live.de> Co-authored-by: SmallJoker <SmallJoker@users.noreply.github.com>
141 lines
3.9 KiB
C++
141 lines
3.9 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "serveractiveobject.h"
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#include "inventory.h"
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#include "inventorymanager.h"
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#include "constants.h" // BS
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ServerActiveObject::ServerActiveObject(ServerEnvironment *env, v3f pos):
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ActiveObject(0),
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m_env(env),
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m_base_position(pos)
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{
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}
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float ServerActiveObject::getMinimumSavedMovement()
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{
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return 2.0*BS;
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}
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ItemStack ServerActiveObject::getWieldedItem(ItemStack *selected, ItemStack *hand) const
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{
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*selected = ItemStack();
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if (hand)
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*hand = ItemStack();
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return ItemStack();
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}
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bool ServerActiveObject::setWieldedItem(const ItemStack &item)
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{
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return false;
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}
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std::string ServerActiveObject::generateUpdateInfantCommand(u16 infant_id, u16 protocol_version)
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{
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std::ostringstream os(std::ios::binary);
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// command
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writeU8(os, AO_CMD_SPAWN_INFANT);
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// parameters
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writeU16(os, infant_id);
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writeU8(os, getSendType());
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if (protocol_version < 38) {
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// Clients since 4aa9a66 so no longer need this data
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// Version 38 is the first bump after that commit.
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// See also: ClientEnvironment::addActiveObject
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os << serializeString32(getClientInitializationData(protocol_version));
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}
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return os.str();
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}
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void ServerActiveObject::dumpAOMessagesToQueue(std::queue<ActiveObjectMessage> &queue)
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{
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while (!m_messages_out.empty()) {
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queue.push(std::move(m_messages_out.front()));
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m_messages_out.pop();
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}
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}
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void ServerActiveObject::markForRemoval()
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{
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if (!m_pending_removal) {
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onMarkedForRemoval();
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m_pending_removal = true;
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}
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}
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void ServerActiveObject::markForDeactivation()
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{
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if (!m_pending_deactivation) {
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onMarkedForDeactivation();
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m_pending_deactivation = true;
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}
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}
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InventoryLocation ServerActiveObject::getInventoryLocation() const
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{
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return InventoryLocation();
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}
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void ServerActiveObject::invalidateEffectiveObservers()
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{
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m_effective_observers.reset();
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}
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using Observers = ServerActiveObject::Observers;
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const Observers &ServerActiveObject::getEffectiveObservers()
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{
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if (m_effective_observers) // cached
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return *m_effective_observers;
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auto parent = getParent();
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if (parent == nullptr)
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return *(m_effective_observers = m_observers);
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auto parent_observers = parent->getEffectiveObservers();
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if (!parent_observers) // parent is unmanaged
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return *(m_effective_observers = m_observers);
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if (!m_observers) // we are unmanaged
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return *(m_effective_observers = parent_observers);
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// Set intersection between parent_observers and m_observers
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// Avoid .clear() to free the allocated memory.
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m_effective_observers = std::unordered_set<std::string>();
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for (const auto &observer_name : *m_observers) {
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if (parent_observers->count(observer_name) > 0)
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(*m_effective_observers)->insert(observer_name);
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}
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return *m_effective_observers;
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}
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const Observers& ServerActiveObject::recalculateEffectiveObservers()
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{
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// Invalidate final observers for this object and all of its parents.
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for (auto obj = this; obj != nullptr; obj = obj->getParent())
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obj->invalidateEffectiveObservers();
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// getEffectiveObservers will now be forced to recalculate.
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return getEffectiveObservers();
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}
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bool ServerActiveObject::isEffectivelyObservedBy(const std::string &player_name)
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{
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auto effective_observers = getEffectiveObservers();
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return !effective_observers || effective_observers->count(player_name) > 0;
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}
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