libgender/entity.h

#ifndef ENTITY_H
#define ENTITY_H

#include <GL/gl.h>

#include <vector>

#include "util.h"
#include "oct.h"
#include "view.h"

using namespace std;

struct entity_base {
  struct entity_base *parent;
  vector<octant *> o;
  box bbox;

  virtual void update_bbox ();
  virtual void show (const sector &sec) { };
  void hide ();
  virtual void draw (draw_context &ctx) = 0;
  void try_draw (draw_context &ctx) { if (ctx.may_draw (this)) draw (ctx); }
  virtual ~entity_base ()
  {
    hide ();
  };
};

struct entity_container : entity_base, protected vector<entity_base *> {
  void add (entity_base *e) { push_back (e); e->parent = this; }
  void update_bbox ();
  void show (const sector &sec);
  void draw (draw_context &ctx);
  ~entity_container ();
};

struct entity_filter : entity_base {
protected:
  entity_base *e;
public:

  void set (entity_base *e)
  {
    this->e = e;
    e->parent = this;
  }

  void remove ()
  {
    this->e->parent = 0;
    this->e = 0;
  }

  entity_base *content () { return e; };

  void update_bbox ();
  void show (const sector &sec);
  void draw (draw_context &ctx);
  ~entity_filter ();
};

struct entity : entity_filter {
  sector sec;

  void show (const sector &sec);
  void show ();
  void draw (draw_context &ctx);
};

#if 0
struct entity_affine : entity_filter {
  GLfloat m[4][4];

  void draw (draw_context &ctx);
};
#endif

struct vertex1d {
  colour c; // colour
  point  p; // vertex
};

struct vertex2d {
  point p; // vertex
  vec3  n; // normal
  texc  t; // texture

  vertex2d () { };
  vertex2d (point p, vec3 n, texc t = texc()) : p(p), n(n), t(t) { };
};

struct entity_opengl : entity_base {
};

template<GLenum type>
struct entity_opengl1d : entity_opengl, vector<vertex1d> {
  void update_bbox ();
  void show (const sector &sec);
  void draw (draw_context &ctx);
};

template<GLenum type>
struct entity_opengl2d : entity_opengl, vector<vertex2d> {
  material m;

  void update_bbox ();
  void show (const sector &sec);
  void draw (draw_context &ctx);
};

typedef entity_opengl1d<GL_POINTS>         entity_points;
typedef entity_opengl1d<GL_LINES>          entity_lines;
typedef entity_opengl1d<GL_LINE_STRIP>     entity_line_strip;
typedef entity_opengl1d<GL_LINE_LOOP>      entity_line_loop;
typedef entity_opengl2d<GL_TRIANGLES>      entity_triangles;
typedef entity_opengl2d<GL_TRIANGLE_STRIP> entity_triangle_strip;
typedef entity_opengl2d<GL_TRIANGLE_FAN>   entity_triangle_fan;
typedef entity_opengl2d<GL_QUADS>          entity_quads;
typedef entity_opengl2d<GL_QUAD_STRIP>     entity_quad_strip;
typedef entity_opengl2d<GL_POLYGON>        entity_polygon;

#endif


Revision:	1.8
Committed:	Sun Oct 3 05:10:45 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+9 -16 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#ifndef ENTITY_H
2			#define ENTITY_H
3
4			#include <GL/gl.h>
5
6			#include <vector>
7
8	root	1.5	#include "util.h"
9	root	1.1	#include "oct.h"
10	root	1.8	#include "view.h"
11	root	1.1
12			using namespace std;
13
14			struct entity_base {
15			struct entity_base *parent;
16			vector<octant *> o;
17			box bbox;
18
19			virtual void update_bbox ();
20			virtual void show (const sector &sec) { };
21			void hide ();
22	root	1.8	virtual void draw (draw_context &ctx) = 0;
23			void try_draw (draw_context &ctx) { if (ctx.may_draw (this)) draw (ctx); }
24	root	1.1	virtual ~entity_base ()
25			{
26			hide ();
27			};
28			};
29
30			struct entity_container : entity_base, protected vector<entity_base *> {
31	root	1.4	void add (entity_base *e) { push_back (e); e->parent = this; }
32	root	1.1	void update_bbox ();
33			void show (const sector &sec);
34	root	1.8	void draw (draw_context &ctx);
35	root	1.1	~entity_container ();
36			};
37
38			struct entity_filter : entity_base {
39			protected:
40			entity_base *e;
41			public:
42
43			void set (entity_base *e)
44			{
45			this->e = e;
46			e->parent = this;
47			}
48
49			void remove ()
50			{
51			this->e->parent = 0;
52			this->e = 0;
53			}
54
55			entity_base *content () { return e; };
56
57			void update_bbox ();
58			void show (const sector &sec);
59	root	1.8	void draw (draw_context &ctx);
60	root	1.1	~entity_filter ();
61			};
62
63			struct entity : entity_filter {
64			sector sec;
65
66			void show (const sector &sec);
67	root	1.3	void show ();
68	root	1.8	void draw (draw_context &ctx);
69	root	1.1	};
70
71	root	1.7	#if 0
72	root	1.1	struct entity_affine : entity_filter {
73	root	1.7	GLfloat m[4][4];
74
75	root	1.8	void draw (draw_context &ctx);
76	root	1.1	};
77	root	1.7	#endif
78	root	1.1
79			struct vertex1d {
80	root	1.3	colour c; // colour
81	root	1.2	point p; // vertex
82	root	1.1	};
83
84			struct vertex2d {
85	root	1.6	point p; // vertex
86			vec3 n; // normal
87			texc t; // texture
88	root	1.3
89			vertex2d () { };
90	root	1.6	vertex2d (point p, vec3 n, texc t = texc()) : p(p), n(n), t(t) { };
91			};
92
93			struct entity_opengl : entity_base {
94	root	1.1	};
95
96			template<GLenum type>
97	root	1.6	struct entity_opengl1d : entity_opengl, vector<vertex1d> {
98	root	1.1	void update_bbox ();
99			void show (const sector &sec);
100	root	1.8	void draw (draw_context &ctx);
101	root	1.1	};
102
103			template<GLenum type>
104	root	1.6	struct entity_opengl2d : entity_opengl, vector<vertex2d> {
105			material m;
106
107	root	1.1	void update_bbox ();
108			void show (const sector &sec);
109	root	1.8	void draw (draw_context &ctx);
110	root	1.1	};
111
112			typedef entity_opengl1d<GL_POINTS> entity_points;
113			typedef entity_opengl1d<GL_LINES> entity_lines;
114	root	1.2	typedef entity_opengl1d<GL_LINE_STRIP> entity_line_strip;
115			typedef entity_opengl1d<GL_LINE_LOOP> entity_line_loop;
116	root	1.1	typedef entity_opengl2d<GL_TRIANGLES> entity_triangles;
117	root	1.2	typedef entity_opengl2d<GL_TRIANGLE_STRIP> entity_triangle_strip;
118			typedef entity_opengl2d<GL_TRIANGLE_FAN> entity_triangle_fan;
119	root	1.1	typedef entity_opengl2d<GL_QUADS> entity_quads;
120			typedef entity_opengl2d<GL_QUAD_STRIP> entity_quad_strip;
121			typedef entity_opengl2d<GL_POLYGON> entity_polygon;
122
123			#endif
124
125
126