Panda3D

ringEmitter.h
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1 /**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file ringEmitter.h
10 * @author charles
11 * @date 2000-06-22
12 */
13
14 #ifndef RINGEMITTER_H
15 #define RINGEMITTER_H
16
17 #include "baseParticleEmitter.h"
18
19 /**
20 * Describes a planar ring region in which particles are generated.
21 */
22 class EXPCL_PANDA_PARTICLESYSTEM RingEmitter : public BaseParticleEmitter {
23 PUBLISHED:
24 RingEmitter();
25 RingEmitter(const RingEmitter &copy);
26 virtual ~RingEmitter();
27
28 virtual BaseParticleEmitter *make_copy();
29
30 INLINE void set_radius(PN_stdfloat r);
31 INLINE void set_angle(PN_stdfloat angle);
32 INLINE void set_radius_spread(PN_stdfloat spread);
33 INLINE void set_uniform_emission(int uniform_emission);
34
35 INLINE PN_stdfloat get_radius() const;
36 INLINE PN_stdfloat get_angle() const;
37 INLINE PN_stdfloat get_radius_spread() const;
38 INLINE int get_uniform_emission() const;
39
40 virtual void output(std::ostream &out) const;
41 virtual void write(std::ostream &out, int indent=0) const;
42
43 protected:
44 PN_stdfloat _radius;
45 PN_stdfloat _radius_spread;
46
47 // CUSTOM EMISSION PARAMETERS
48 PN_stdfloat _aoe; // angle of elevation
49
50 // viariables used for uniform particle emission
51 int _uniform_emission;
52 PN_stdfloat _theta;
53
54 // scratch variables that carry over from position calc to velocity calc
55 PN_stdfloat _sin_theta;
56 PN_stdfloat _cos_theta;
57
58 private:
59 virtual void assign_initial_position(LPoint3& pos);
60 virtual void assign_initial_velocity(LVector3& vel);
61 };
62
63 #include "ringEmitter.I"
64
65 #endif // RINGEMITTER_H
baseParticleEmitter.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
BaseParticleEmitter
Definition: baseParticleEmitter.h:25
BaseParticleEmitter::write
virtual void write(std::ostream &out, int indent=0) const
Write a string representation of this instance to <out>.
Definition: baseParticleEmitter.cxx:92
BaseParticleEmitter::output
virtual void output(std::ostream &out) const
Write a string representation of this instance to <out>.
Definition: baseParticleEmitter.cxx:82
RingEmitter
Describes a planar ring region in which particles are generated.
Definition: ringEmitter.h:22
indent
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition: indent.cxx:20
ringEmitter.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.