77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file baseParticleEmitter.h
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* @author charles
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* @date 2000-06-14
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*/
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#ifndef BASEPARTICLEEMITTER_H
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#define BASEPARTICLEEMITTER_H
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#include "pandabase.h"
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#include "referenceCount.h"
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#include "luse.h"
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#include "particleCommonFuncs.h"
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#include "mathNumbers.h"
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class EXPCL_PANDA_PARTICLESYSTEM BaseParticleEmitter : public ReferenceCount {
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PUBLISHED:
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enum emissionType {
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ET_EXPLICIT, // all particles are emitted in parallel along the same vector
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ET_RADIATE, // all particles radiate away from a single point
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ET_CUSTOM // particle launch vectors are dependent on particular derived emitter
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};
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virtual ~BaseParticleEmitter();
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virtual BaseParticleEmitter *make_copy() = 0;
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void generate(LPoint3& pos, LVector3& vel);
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INLINE void set_emission_type(emissionType et);
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INLINE void set_amplitude(PN_stdfloat a);
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INLINE void set_amplitude_spread(PN_stdfloat as);
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INLINE void set_offset_force(const LVector3& of); // this is a constant force applied to all particles
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INLINE void set_explicit_launch_vector(const LVector3& elv);
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INLINE void set_radiate_origin(const LPoint3& ro);
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INLINE emissionType get_emission_type() const;
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INLINE PN_stdfloat get_amplitude() const;
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INLINE PN_stdfloat get_amplitude_spread() const;
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INLINE LVector3 get_offset_force() const;
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INLINE LVector3 get_explicit_launch_vector() const;
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INLINE LPoint3 get_radiate_origin() const;
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virtual void output(std::ostream &out) const;
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virtual void write(std::ostream &out, int indent=0) const;
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protected:
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BaseParticleEmitter();
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BaseParticleEmitter(const BaseParticleEmitter ©);
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emissionType _emission_type;
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LVector3 _explicit_launch_vector;
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LPoint3 _radiate_origin;
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PN_stdfloat _amplitude;
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PN_stdfloat _amplitude_spread;
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private:
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// these should be called in sequence (pos, then vel)
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virtual void assign_initial_position(LPoint3& pos) = 0;
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virtual void assign_initial_velocity(LVector3& vel) = 0;
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LVector3 _offset_force;
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};
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#include "baseParticleEmitter.I"
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#endif // BASEPARTICLEEMITTER_H
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