Panda3D
|
00001 // Filename: tangentRingEmitter.h 00002 // Created by: charles (25Jul00) 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 TANGENTRINGEMITTER_H 00016 #define TANGENTRINGEMITTER_H 00017 00018 #include "baseParticleEmitter.h" 00019 00020 //////////////////////////////////////////////////////////////////// 00021 // Class : TangentRingEmitter 00022 // Description : Describes a planar ring region in which 00023 // tangent particles are generated, and particles 00024 // fly off tangential to the ring. 00025 //////////////////////////////////////////////////////////////////// 00026 class EXPCL_PANDAPHYSICS TangentRingEmitter : public BaseParticleEmitter { 00027 PUBLISHED: 00028 TangentRingEmitter(); 00029 TangentRingEmitter(const TangentRingEmitter ©); 00030 virtual ~TangentRingEmitter(); 00031 00032 virtual BaseParticleEmitter *make_copy(); 00033 00034 INLINE void set_radius(PN_stdfloat r); 00035 INLINE void set_radius_spread(PN_stdfloat spread); 00036 00037 INLINE PN_stdfloat get_radius() const; 00038 INLINE PN_stdfloat get_radius_spread() const; 00039 00040 virtual void output(ostream &out) const; 00041 virtual void write(ostream &out, int indent=0) const; 00042 00043 private: 00044 PN_stdfloat _radius; 00045 PN_stdfloat _radius_spread; 00046 00047 // CUSTOM EMISSION PARAMETERS 00048 // none 00049 00050 /////////////////////////////// 00051 // scratch variables that carry over from position calc to velocity calc 00052 PN_stdfloat _x; 00053 PN_stdfloat _y; 00054 /////////////////////////////// 00055 00056 virtual void assign_initial_position(LPoint3& pos); 00057 virtual void assign_initial_velocity(LVector3& vel); 00058 }; 00059 00060 #include "tangentRingEmitter.I" 00061 00062 #endif // TANGENTRINGEMITTER_H