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"Awareness" refers to an entity's view of the surrounding world with regards to how the entity could navigate. We use Recast/Detour to build a navmesh for the entity. However, since each world can have many NPCs, each one with their own mind, we don't want to keep a complete navmesh for each single mind. This will quickly become expensive. Therefore we want to share awarenesses between multiple entities of the same type. So, for example, all fishes handled by the same ai client will share one single awareness of the world. This to some degree involves some cheating, since AI minds now might get knowledge of the world they otherwise wouldn't have. We consider this to not be such a big issue. If this is unacceptable for some worlds these should then disable awareness sharing and take the resource hit.
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
/*
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Copyright (C) 2013 Erik Ogenvik
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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 General Public License as published by
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the Free Software Foundation; either version 2 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef POSSESSIONCLIENT_H_
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#define POSSESSIONCLIENT_H_
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#include "BaseClient.h"
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#include "LocatedEntityRegistry.h"
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#include "common/OperationsDispatcher.h"
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#include <map>
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#include <unordered_map>
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class MindKit;
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class PossessionAccount;
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/**
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* Manages possession requests from the server and spawns new AI clients.
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*/
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class PossessionClient: public BaseClient, public LocatedEntityRegistry
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{
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public:
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PossessionClient(MindKit& mindFactory);
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virtual ~PossessionClient();
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bool idle();
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double secondsUntilNextOp() const;
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bool isQueueDirty() const;
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void markQueueAsClean();
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void createAccount(const std::string& accountId);
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virtual void addLocatedEntity(LocatedEntity* mind);
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virtual void removeLocatedEntity(LocatedEntity* mind);
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protected:
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virtual void operation(const Operation & op, OpVector & res);
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void operationFromEntity(const Operation & op, LocatedEntity& locatedEntity);
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double getTime() const;
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MindKit& m_mindFactory;
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PossessionAccount* m_account;
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OperationsDispatcher m_operationsDispatcher;
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std::unordered_map<long, LocatedEntity*> m_minds;
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};
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#endif /* POSSESSIONCLIENT_H_ */
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