[7819] | 1 | /*! |
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| 2 | * @file cr_engine.h |
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| 3 | * @brief The collision reaction engine, defining generic collision reactions to collision events |
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[7964] | 4 | * |
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| 5 | * some parts of this module are tuned for efficiency. They are probably not self-explenatory anymore :D |
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| 6 | * - Collision/ CollisionEvent objects recycling: This class contains a class of precached objects of these types |
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| 7 | * they are used for fast registration of collision events: These objects can be get by the interface functions and |
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| 8 | * are returned after one cycle automaticly by reseting the cached lists to its initial state. So do not wonder :D |
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| 9 | */ |
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[7819] | 10 | |
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| 11 | #ifndef _CR_ENGINE_ |
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| 12 | #define _CR_ENGINE_ |
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| 13 | |
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| 14 | #include "base_object.h" |
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[7937] | 15 | |
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[7865] | 16 | #include <vector> |
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[7819] | 17 | |
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| 18 | // FORWARD DECLARATION |
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[7839] | 19 | class CollisionHandle; |
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| 20 | class Collision; |
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[7964] | 21 | class CollisionEvent; |
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[7865] | 22 | class WorldEntity; |
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[7819] | 23 | |
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| 24 | //! A default singleton class. |
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[7839] | 25 | class CREngine : public BaseObject |
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| 26 | { |
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[7865] | 27 | |
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[7927] | 28 | public: |
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[7839] | 29 | typedef enum CRType { |
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[7927] | 30 | CR_PHYSICS_MOMENTUM = 0, |
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| 31 | CR_PHYSICS_GROUND, |
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| 32 | CR_PHYSICS_GROUND_WALK, |
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[7839] | 33 | |
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| 34 | CR_OBJECT_DAMAGE, |
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| 35 | CR_OBJECT_PICKUP, |
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| 36 | |
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| 37 | CR_VERTEX_TRAFO, |
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| 38 | |
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[7927] | 39 | CR_SPECIAL_CALLBACK, |
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[7839] | 40 | |
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| 41 | CR_NUMBER |
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| 42 | }; |
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| 43 | |
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[7927] | 44 | virtual ~CREngine(void); |
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[7865] | 45 | |
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[7819] | 46 | /** @returns a Pointer to the only object of this Class */ |
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[7937] | 47 | inline static CREngine* getInstance() { if (!singletonRef) singletonRef = new CREngine(); return singletonRef; }; |
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[7819] | 48 | |
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[7940] | 49 | void reset(); |
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| 50 | |
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| 51 | |
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[7932] | 52 | CollisionHandle* subscribeReaction(WorldEntity* worldEntity, CRType type); |
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[7865] | 53 | |
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[7839] | 54 | bool unsubscribeReaction(CollisionHandle* collisionHandle); |
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| 55 | |
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[7841] | 56 | void handleCollisions(); |
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| 57 | |
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[7839] | 58 | /** @returns an instance to a collision object. instead of creating new object this ones can be resycled */ |
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[7964] | 59 | inline Collision* popCollisionObject() { |
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| 60 | if( !this->collisionsUnused.empty()) { |
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| 61 | this->collisionsUsed.push_back(this->collisionsUnused.back()); this->collisionsUnused.pop_back(); return this->collisionsUsed.back(); } else return NULL; } |
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[7839] | 62 | |
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[7964] | 63 | /** @return an instanco of a CollisionEvent object. instead of creating a new object this ones can be used and resycled */ |
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| 64 | inline CollisionEvent* popCollisionEventObject() { |
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| 65 | if( !this->collisionEventsUnused.empty()) { |
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| 66 | this->collisionEventsUsed.push_back(this->collisionEventsUnused.back()); this->collisionEventsUnused.pop_back(); return this->collisionEventsUsed.back(); } else return NULL; } |
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[7839] | 67 | |
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[7933] | 68 | void debug(); |
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| 69 | |
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[7945] | 70 | |
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[7839] | 71 | private: |
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[7937] | 72 | CREngine(); |
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[7945] | 73 | void init(); |
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[7839] | 74 | |
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[7966] | 75 | void flushCollisions(); |
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[7927] | 76 | |
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[7966] | 77 | |
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[7865] | 78 | private: |
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[7839] | 79 | std::vector<CollisionHandle*> collisionHandles; //!< list with the collision handles |
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[7865] | 80 | |
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[7960] | 81 | std::vector<Collision*> collisionsUsed; //!< a list of used, cached collisions |
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| 82 | std::vector<Collision*> collisionsUnused; //!< a list of unused, cached collisions |
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| 83 | |
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[7964] | 84 | std::vector<CollisionEvent*> collisionEventsUsed; //!< a list of used, cached collision events |
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| 85 | std::vector<CollisionEvent*> collisionEventsUnused; //!< a list of unused, cached collision events |
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[7960] | 86 | |
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[7843] | 87 | static CREngine* singletonRef; //!< the reference to the CREngine object (singleton) |
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[7819] | 88 | }; |
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| 89 | |
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| 90 | #endif /* _CR_ENGINE_ */ |
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