source: trunk/orbital/starfield.h @ 1363

Last change on this file since 1363 was 1363, checked in by sam, 9 years ago

orbital: add the two parallax starfields.

File size: 2.4 KB
Line 
1//
2// Orbital
3//
4// Copyright: (c) 2012 Various People
5//
6
7/* FIXME: this file is pure crap; it's only a test. */
8
9#if !defined __STARFIELD_H__
10#define __STARFIELD_H__
11
12class StarField : public WorldEntity
13{
14public:
15    StarField(int count3, int count4, float z3, float z4, float speed3, float speed4)
16      : m_ready(false)
17    {
18        m_star3_mesh.SendCommand("sc1,1,1,1,scb1,1,1,0,ad4,1.8,1");
19        m_star4_mesh.SendCommand("sc1,1,1,1,scb1,1,1,0,ad3,0.8,1");
20
21        for (int i = 0; i < count3; i++)
22            m_star3.Push(vec3(RandF(800.f) - 400.f, z3, RandF(600.f) - 300.f),
23                         vec3(0.f, 0.f, speed3),
24                         RandF(0.f, 10.f));
25
26        for (int i = 0; i < count4; i++)
27            m_star4.Push(vec3(RandF(800.f) - 400.f, z4, RandF(600.f) - 300.f),
28                         vec3(0.f, 0.f, speed4),
29                         RandF(0.f, 10.f));
30    }
31
32    ~StarField()
33    {
34    }
35
36    char const *GetName() { return "<particlesystem>"; }
37
38protected:
39    virtual void TickGame(float seconds)
40    {
41        WorldEntity::TickGame(seconds);
42
43        for (int i = 0; i < m_star3.Count(); i++)
44        {
45            m_star3[i].m3 += 10.f * seconds;
46            m_star3[i].m1 += seconds * m_star3[i].m2;
47            if (m_star3[i].m1.z > 300.f)
48                m_star3[i].m1.z = -300.f;
49        }
50
51        for (int i = 0; i < m_star4.Count(); i++)
52        {
53            m_star4[i].m3 += 10.f * seconds;
54            m_star4[i].m1 += seconds * m_star4[i].m2;
55            if (m_star4[i].m1.z > 300.f)
56                m_star4[i].m1.z = -300.f;
57        }
58    }
59
60    virtual void TickDraw(float seconds)
61    {
62        WorldEntity::TickDraw(seconds);
63
64        if (!m_ready)
65        {
66            m_star3_mesh.SendCommand("irb");
67            m_star4_mesh.SendCommand("irb");
68            m_ready = true;
69        }
70
71        for (int i = 0; i < m_star3.Count(); i++)
72        {
73            mat4 model = mat4::translate(m_star3[i].m1)
74                       * mat4::rotate(m_star3[i].m3, 0.f, 1.f, 0.f);
75
76            m_star3_mesh.Render(model);
77        }
78
79        for (int i = 0; i < m_star4.Count(); i++)
80        {
81            mat4 model = mat4::translate(m_star4[i].m1)
82                       * mat4::rotate(m_star4[i].m3, 0.f, 1.f, 0.f);
83
84            m_star4_mesh.Render(model);
85        }
86    }
87
88private:
89    Mesh m_star3_mesh, m_star4_mesh;
90    Array<vec3, vec3, float> m_star3, m_star4;
91    bool m_ready;
92};
93
94#endif /* __STARFIELD_H__ */
95
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