Panda3D
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zSpinParticle.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 zSpinParticle.h
10 * @author charles
11 * @date 2000-08-16
12 */
13
14#ifndef ZSPINPARTICLE_H
15#define ZSPINPARTICLE_H
16
17#include "baseParticle.h"
18
19/**
20 * describes a particle that spins along its z axis. this is kind of an
21 * intermediary class- if you're using a SpriteParticleRenderer and you want
22 * your sprites to spin without having them be full-blown oriented (i.e.
23 * angry quat math), use this.
24 */
25class EXPCL_PANDA_PARTICLESYSTEM ZSpinParticle : public BaseParticle {
26public:
28 ZSpinParticle(const ZSpinParticle &copy);
29 virtual ~ZSpinParticle();
30
31 virtual PhysicsObject *make_copy() const;
32
33 virtual void init();
34 virtual void update();
35 virtual void die();
36
37 virtual PN_stdfloat get_theta() const;
38
39 INLINE void set_initial_angle(PN_stdfloat t);
40 INLINE PN_stdfloat get_initial_angle() const;
41
42 INLINE void set_final_angle(PN_stdfloat t);
43 INLINE PN_stdfloat get_final_angle() const;
44
45 // 'set_final_angle' and 'angular_velocity' are mutually exclusive apis if
46 // angular-velocity is specified, final_angle is ignored
47 INLINE void set_angular_velocity(PN_stdfloat v);
48 INLINE PN_stdfloat get_angular_velocity() const;
49
50 INLINE void enable_angular_velocity(bool bEnabled);
51 INLINE bool get_angular_velocity_enabled() const;
52
53 virtual void output(std::ostream &out) const;
54 virtual void write(std::ostream &out, int indent=0) const;
55
56private:
57 PN_stdfloat _initial_angle;
58 PN_stdfloat _final_angle;
59 PN_stdfloat _cur_angle;
60 PN_stdfloat _angular_velocity;
61 bool _bUseAngularVelocity;
62};
63
64#include "zSpinParticle.I"
65
66#endif // ZSPINPARTICLE_H
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
An individual, physically-modelable particle abstract base class.
virtual void write(std::ostream &out, int indent=0) const
Write a string representation of this instance to <out>.
virtual PN_stdfloat get_theta() const
for spriteParticleRenderer
virtual void output(std::ostream &out) const
Write a string representation of this instance to <out>.
virtual PhysicsObject * make_copy() const =0
dynamic copy.
A body on which physics will be applied.
describes a particle that spins along its z axis.
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition indent.cxx:20
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.