historical/toontown-classic.git/panda/include/ringEmitter.h
2024-01-16 11:20:27 -06:00

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 &copy);
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