mirror of
https://github.com/overte-org/overte.git
synced 2025-08-04 03:43:33 +02:00
107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
//
|
|
// EntitySimulation.h
|
|
// libraries/entities/src
|
|
//
|
|
// Created by Andrew Meadows on 2014.11.24
|
|
// Copyright 2014 High Fidelity, Inc.
|
|
//
|
|
// Distributed under the Apache License, Version 2.0.
|
|
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
|
|
//
|
|
|
|
#ifndef hifi_EntitySimulation_h
|
|
#define hifi_EntitySimulation_h
|
|
|
|
#include <QtCore/QObject>
|
|
#include <QSet>
|
|
|
|
#include <PerfStat.h>
|
|
|
|
#include "EntityItem.h"
|
|
#include "EntityTree.h"
|
|
|
|
// the EntitySimulation needs to know when these things change on an entity,
|
|
// so it can sort EntityItem or relay its state to the PhysicsEngine.
|
|
const int DIRTY_SIMULATION_FLAGS =
|
|
EntityItem::DIRTY_POSITION |
|
|
EntityItem::DIRTY_VELOCITY |
|
|
EntityItem::DIRTY_MASS |
|
|
EntityItem::DIRTY_COLLISION_GROUP |
|
|
EntityItem::DIRTY_MOTION_TYPE |
|
|
EntityItem::DIRTY_SHAPE |
|
|
EntityItem::DIRTY_LIFETIME |
|
|
EntityItem::DIRTY_UPDATEABLE;
|
|
|
|
class EntitySimulation : public QObject {
|
|
Q_OBJECT
|
|
public:
|
|
EntitySimulation() : _mutex(QMutex::Recursive), _entityTree(NULL), _nextExpiry(quint64(-1)) { }
|
|
virtual ~EntitySimulation() { setEntityTree(NULL); }
|
|
|
|
void lock() { _mutex.lock(); }
|
|
void unlock() { _mutex.unlock(); }
|
|
|
|
/// \param tree pointer to EntityTree which is stored internally
|
|
void setEntityTree(EntityTree* tree);
|
|
|
|
/// \param[out] entitiesToDelete list of entities removed from simulation and should be deleted.
|
|
void updateEntities(QSet<EntityItem*>& entitiesToDelete);
|
|
|
|
/// \param entity pointer to EntityItem to add to the simulation
|
|
/// \sideeffect the EntityItem::_simulationState member may be updated to indicate membership to internal list
|
|
void addEntity(EntityItem* entity);
|
|
|
|
/// \param entity pointer to EntityItem to removed from the simulation
|
|
/// \sideeffect the EntityItem::_simulationState member may be updated to indicate non-membership to internal list
|
|
void removeEntity(EntityItem* entity);
|
|
|
|
/// \param entity pointer to EntityItem to that may have changed in a way that would affect its simulation
|
|
/// call this whenever an entity was changed from some EXTERNAL event (NOT by the EntitySimulation itself)
|
|
void entityChanged(EntityItem* entity);
|
|
|
|
void clearEntities();
|
|
|
|
virtual void bump(EntityItem* bumpEntity) {}
|
|
|
|
EntityTree* getEntityTree() { return _entityTree; }
|
|
|
|
signals:
|
|
void entityCollisionWithEntity(const EntityItemID& idA, const EntityItemID& idB, const Collision& collision);
|
|
|
|
protected:
|
|
|
|
// These pure virtual methods are protected because they are not to be called will-nilly. The base class
|
|
// calls them in the right places.
|
|
|
|
// NOTE: updateEntitiesInternal() should clear all dirty flags on each changed entity as side effect
|
|
virtual void updateEntitiesInternal(const quint64& now) = 0;
|
|
|
|
virtual void addEntityInternal(EntityItem* entity) = 0;
|
|
|
|
virtual void removeEntityInternal(EntityItem* entity) = 0;
|
|
|
|
virtual void entityChangedInternal(EntityItem* entity) = 0;
|
|
|
|
virtual void sortEntitiesThatMovedInternal() {}
|
|
|
|
virtual void clearEntitiesInternal() = 0;
|
|
|
|
void expireMortalEntities(const quint64& now);
|
|
void callUpdateOnEntitiesThatNeedIt(const quint64& now);
|
|
void sortEntitiesThatMoved();
|
|
|
|
QMutex _mutex;
|
|
|
|
// back pointer to EntityTree structure
|
|
EntityTree* _entityTree;
|
|
|
|
// We maintain multiple lists, each for its distinct purpose.
|
|
// An entity may be in more than one list.
|
|
QSet<EntityItem*> _mortalEntities; // entities that have an expiry
|
|
quint64 _nextExpiry;
|
|
QSet<EntityItem*> _updateableEntities; // entities that need update() called
|
|
QSet<EntityItem*> _entitiesToBeSorted; // entities that were moved by THIS simulation and might need to be resorted in the tree
|
|
QSet<EntityItem*> _entitiesToDelete;
|
|
};
|
|
|
|
#endif // hifi_EntitySimulation_h
|