65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file ringEmitter.h
|
|
* @author charles
|
|
* @date 2000-06-22
|
|
*/
|
|
|
|
#ifndef RINGEMITTER_H
|
|
#define RINGEMITTER_H
|
|
|
|
#include "baseParticleEmitter.h"
|
|
|
|
/**
|
|
* Describes a planar ring region in which particles are generated.
|
|
*/
|
|
class EXPCL_PANDA_PARTICLESYSTEM RingEmitter : public BaseParticleEmitter {
|
|
PUBLISHED:
|
|
RingEmitter();
|
|
RingEmitter(const RingEmitter ©);
|
|
virtual ~RingEmitter();
|
|
|
|
virtual BaseParticleEmitter *make_copy();
|
|
|
|
INLINE void set_radius(PN_stdfloat r);
|
|
INLINE void set_angle(PN_stdfloat angle);
|
|
INLINE void set_radius_spread(PN_stdfloat spread);
|
|
INLINE void set_uniform_emission(int uniform_emission);
|
|
|
|
INLINE PN_stdfloat get_radius() const;
|
|
INLINE PN_stdfloat get_angle() const;
|
|
INLINE PN_stdfloat get_radius_spread() const;
|
|
INLINE int get_uniform_emission() const;
|
|
|
|
virtual void output(std::ostream &out) const;
|
|
virtual void write(std::ostream &out, int indent=0) const;
|
|
|
|
protected:
|
|
PN_stdfloat _radius;
|
|
PN_stdfloat _radius_spread;
|
|
|
|
// CUSTOM EMISSION PARAMETERS
|
|
PN_stdfloat _aoe; // angle of elevation
|
|
|
|
// viariables used for uniform particle emission
|
|
int _uniform_emission;
|
|
PN_stdfloat _theta;
|
|
|
|
// scratch variables that carry over from position calc to velocity calc
|
|
PN_stdfloat _sin_theta;
|
|
PN_stdfloat _cos_theta;
|
|
|
|
private:
|
|
virtual void assign_initial_position(LPoint3& pos);
|
|
virtual void assign_initial_velocity(LVector3& vel);
|
|
};
|
|
|
|
#include "ringEmitter.I"
|
|
|
|
#endif // RINGEMITTER_H
|