Panda3D
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discEmitter.h
00001 // Filename: discEmitter.h
00002 // Created by:  charles (22Jun00)
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 DISCEMITTER_H
00016 #define DISCEMITTER_H
00017 
00018 #include "baseParticleEmitter.h"
00019 
00020 ////////////////////////////////////////////////////////////////////
00021 //       Class : DiscEmitter
00022 // Description : Describes a planar disc region from which particles
00023 //               are generated
00024 ////////////////////////////////////////////////////////////////////
00025 class EXPCL_PANDAPHYSICS DiscEmitter : public BaseParticleEmitter {
00026 PUBLISHED:
00027   DiscEmitter();
00028   DiscEmitter(const DiscEmitter &copy);
00029   virtual ~DiscEmitter();
00030 
00031   virtual BaseParticleEmitter *make_copy();
00032 
00033   INLINE void set_radius(PN_stdfloat r);
00034   INLINE void set_outer_angle(PN_stdfloat o_angle);
00035   INLINE void set_inner_angle(PN_stdfloat i_angle);
00036   INLINE void set_outer_magnitude(PN_stdfloat o_mag);
00037   INLINE void set_inner_magnitude(PN_stdfloat i_mag);
00038   INLINE void set_cubic_lerping(bool clerp);
00039 
00040   INLINE PN_stdfloat get_radius() const;
00041   INLINE PN_stdfloat get_outer_angle() const;
00042   INLINE PN_stdfloat get_inner_angle() const;
00043   INLINE PN_stdfloat get_outer_magnitude() const;
00044   INLINE PN_stdfloat get_inner_magnitude() const;
00045   INLINE bool get_cubic_lerping() const;
00046 
00047   virtual void output(ostream &out) const;
00048   virtual void write(ostream &out, int indent=0) const;
00049 
00050 private:
00051   PN_stdfloat _radius;
00052 
00053   // CUSTOM EMISSION PARAMETERS
00054   PN_stdfloat _inner_aoe;
00055   PN_stdfloat _outer_aoe;
00056   PN_stdfloat _inner_magnitude;
00057   PN_stdfloat _outer_magnitude;
00058   bool _cubic_lerping;
00059 
00060   ///////////////////////////////
00061   // scratch variables that carry over from position calc to velocity calc
00062   PN_stdfloat _distance_from_center;
00063   PN_stdfloat _sinf_theta;
00064   PN_stdfloat _cosf_theta;
00065   ///////////////////////////////
00066 
00067   virtual void assign_initial_position(LPoint3& pos);
00068   virtual void assign_initial_velocity(LVector3& vel);
00069 };
00070 
00071 #include "discEmitter.I"
00072 
00073 #endif // DISCEMITTER_H
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