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Particles.h
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1 /* Project nGenEx
2  Destroyer Studios LLC
3  Copyright © 1997-2004. All Rights Reserved.
4 
5  SUBSYSTEM: nGenEx.lib
6  FILE: Particles.h
7  AUTHOR: John DiCamillo
8 
9 
10  OVERVIEW
11  ========
12  Particle burst class
13 */
14 
15 #ifndef Particles_h
16 #define Particles_h
17 
18 #include "Types.h"
19 #include "Geometry.h"
20 #include "Graphic.h"
21 #include "Sprite.h"
22 
23 // +--------------------------------------------------------------------+
24 
25 class Particles : public Graphic
26 {
27 public:
28  Particles(Bitmap* bitmap,
29  int np,
30  const Vec3& base_loc,
31  const Vec3& vel,
32  float base_speed = 500.0f,
33  float drag = 1.0f,
34  float scale = 1.0f,
35  float bloom = 0.0f,
36  float decay = 100.0f,
37  float release = 1.0f,
38  bool cont = false,
39  bool trail = true,
40  bool rise = false,
41  int blend = 3,
42  int nframes = 1);
43 
44  virtual ~Particles();
45 
46  virtual void Render(Video* video, DWORD flags);
47  virtual void ExecFrame(double seconds);
48  virtual void TranslateBy(const Point& ref) { offset = ref; loc = loc - ref; }
49  virtual bool CheckVisibility(Projector& projector);
50 
51  virtual bool IsEmitting() const { return emitting; }
52  virtual void StopEmitting() { emitting = false; }
53 
54 protected:
55  int nparts;
56  int nverts;
57  int blend;
58  bool continuous;
59  bool trailing;
60  bool rising;
61  bool emitting;
62 
63  float base_speed;
64  float max_speed;
65  float drag;
66  float release_rate;
67  float decay;
68  float min_scale;
69  float max_scale;
70  float extra;
71 
72  Point ref_loc;
73  Point offset;
74  Point* velocity;
75  Point* part_loc;
76  Point* release;
77  float* timestamp;
78  float* intensity;
79  float* scale;
80  float* angle;
81  BYTE* frame;
82 
83  Sprite* point_sprite;
84 };
85 
86 #endif Particles_h