Panda3D
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00001 // Filename: baseParticle.h 00002 // Created by: charles (14Jun00) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef BASEPARTICLE_H 00016 #define BASEPARTICLE_H 00017 00018 #include "pandabase.h" 00019 #include "physicsObject.h" 00020 00021 //////////////////////////////////////////////////////////////////// 00022 // Class : BaseParticle 00023 // Description : An individual, physically-modelable particle 00024 // abstract base class. 00025 //////////////////////////////////////////////////////////////////// 00026 class EXPCL_PANDAPHYSICS BaseParticle : public PhysicsObject { 00027 public: 00028 // local methods 00029 INLINE void set_age(PN_stdfloat age); 00030 INLINE void set_lifespan(PN_stdfloat lifespan); 00031 INLINE void set_alive(bool alive); 00032 INLINE void set_index(int index); 00033 00034 00035 INLINE PN_stdfloat get_age() const; 00036 INLINE PN_stdfloat get_lifespan() const; 00037 INLINE bool get_alive() const; 00038 INLINE int get_index() const; 00039 00040 INLINE PN_stdfloat get_parameterized_age() const; 00041 INLINE PN_stdfloat get_parameterized_vel() const; 00042 00043 // child methods 00044 virtual void init() = 0; 00045 virtual void die() = 0; 00046 virtual void update() = 0; 00047 00048 // for spriteParticleRenderer 00049 virtual PN_stdfloat get_theta() const; 00050 00051 // from PhysicsObject 00052 virtual PhysicsObject *make_copy() const = 0; 00053 00054 virtual void output(ostream &out) const; 00055 virtual void write(ostream &out, int indent=0) const; 00056 00057 protected: 00058 BaseParticle(PN_stdfloat lifespan = 1.0f, bool alive = false); 00059 BaseParticle(const BaseParticle ©); 00060 virtual ~BaseParticle(); 00061 00062 private: 00063 // NOTE: age and lifespan are in seconds. 00064 PN_stdfloat _age; 00065 PN_stdfloat _lifespan; 00066 bool _alive; 00067 int _index; 00068 00069 LPoint3 _last_position; 00070 }; 00071 00072 #include "baseParticle.I" 00073 00074 #endif // BASEPARTICLE_H