libgender/entity.C

#include <algorithm>
#include <cmath>

using namespace std;

#include "entity.h"
#include "oct.h"

void entity_base::update_bbox ()
{
  if (parent)
    parent->update_bbox ();
}

void entity_base::hide ()
{
  for (vector<octant *>::iterator i = o.end (); i-- != o.begin (); )
    (*i)->remove (this);

  o.clear ();
}

void entity_filter::update_bbox ()
{
  bbox = e->bbox;
  entity_base::update_bbox ();
}

void entity_filter::show (const sector &sec)
{
  world.add (sec, this);

  e->show (sec);
}

void entity_filter::draw (const draw_context &ctx)
{
  e->draw (ctx);
}

entity_filter::~entity_filter ()
{
  delete e;
}

void entity::show (const sector &sec)
{
  show ();
}

void entity::show ()
{
  e->show (this->sec);
}

void entity::draw (const draw_context &ctx)
{
  glPushMatrix ();
  glTranslated (-sec.x, -sec.y, -sec.z);
  e->draw (ctx);
  glPopMatrix ();
}

void entity_container::update_bbox ()
{
  bbox.reset ();

  for (iterator i = end (); i-- != begin (); )
    {
      (*i)->update_bbox ();
      bbox.add ((*i)->bbox);
    }
}

void entity_container::show (const sector &sec)
{
  world.add (sec, this);

  for (iterator i = end (); i-- != begin (); )
    (*i)->show (sec);
}

void entity_container::draw (const draw_context &ctx)
{
  for (iterator i = end (); i-- != begin (); )
    (*i)->draw (ctx);
}

entity_container::~entity_container ()
{
  hide ();

  for (iterator i = end (); i-- != begin (); )
    delete *i;
 
  clear ();
}

template entity_opengl1d<GL_POINTS>;
template entity_opengl1d<GL_LINES>;
template entity_opengl1d<GL_LINE_STRIP>;
template entity_opengl1d<GL_LINE_LOOP>;
template entity_opengl2d<GL_TRIANGLES>;
template entity_opengl2d<GL_TRIANGLE_STRIP>;
template entity_opengl2d<GL_TRIANGLE_FAN>;
template entity_opengl2d<GL_QUADS>;
template entity_opengl2d<GL_QUAD_STRIP>;
template entity_opengl2d<GL_POLYGON>;

template<GLenum type>
void entity_opengl1d<type>::update_bbox ()
{
  bbox.reset ();

  for (vector<vertex1d>::iterator i = end (); i-- != begin (); )
    bbox.add (i->p);

  entity_base::update_bbox ();
}

template<GLenum type>
void entity_opengl2d<type>::update_bbox ()
{
  for (vector<vertex2d>::iterator i = end (); i-- != begin (); )
    bbox.add (i->p);

  entity_base::update_bbox ();
}

template<GLenum type>
void entity_opengl1d<type>::draw (const draw_context &ctx)
{
  glBegin (type);

  for (iterator i = begin (); i < end (); ++i)
    {
      if (ctx.mode == draw_context::LIGHTED)
        glColor3fv ((GLfloat *)&i->c);

      glVertex3fv ((GLfloat *)&i->p);
    }

  glEnd ();
}

template<GLenum type>
void entity_opengl2d<type>::draw (const draw_context &ctx)
{
  glBegin (type);

  if (ctx.mode == draw_context::LIGHTED)
    {
      glMaterialfv (GL_FRONT, GL_DIFFUSE,  (GLfloat *)&m.diffuse);
      glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *)&m.specular);
      glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *)&m.emission);
      glMaterialf  (GL_FRONT, GL_SHININESS, m.shininess);
    }
     
  for (iterator i = begin (); i < end (); ++i)
    {
      if (ctx.mode == draw_context::LIGHTED)
        {
          glTexCoord2fv ((GLfloat *)&i->t);
          glNormal3fv ((GLfloat *)&i->n);
        }

      glVertex3fv ((GLfloat *)&i->p);
    }

  glEnd ();
}

template<GLenum type>
void entity_opengl1d<type>::show (const sector &sec)
{
  world.add (sec, this);
}

template<GLenum type>
void entity_opengl2d<type>::show (const sector &sec)
{
  world.add (sec, this);
}

void view::draw (const draw_context &ctx)
{
  glViewport (0, 0, w, h);

  glMatrixMode (GL_PROJECTION);
  glLoadIdentity ();

  GLdouble aspect = (GLdouble)w/h;
  GLdouble zNear = 0.0001;
  GLdouble zFar = 1000.;

  {
    GLdouble ymax = zNear * tan (fov * (M_PI / 360.0));

    glFrustum (-ymax * aspect, ymax * aspect, -ymax, ymax, zNear, zFar);
  }

  vec3 rz = -d;
  vec3 rx = cross (u, rz);
  vec3 ry = cross (rz, rx);

  GLfloat m[4][4];
  m[0][0] = rx.x; m[0][1] = rx.y; m[0][2] = rx.z; m[0][3] = 0;
  m[1][0] = ry.x; m[1][1] = ry.y; m[1][2] = ry.z; m[1][3] = 0;
  m[2][0] = rz.x; m[2][1] = rz.y; m[2][2] = rz.z; m[2][3] = 0;
  m[3][0] =    0; m[3][1] =    0; m[3][2] =    0; m[3][3] = 1;
  glMultMatrixf ((GLfloat *)m);

  glTranslatef (-p.x, -p.y, -p.z);

  glMatrixMode (GL_MODELVIEW);
  glLoadIdentity ();

  world.draw (ctx);
}


Revision:	1.10
Committed:	Sun Oct 3 04:14:13 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.9:	+5 -10 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#include <algorithm>
2	root	1.2	#include <cmath>
3	root	1.1
4			using namespace std;
5
6			#include "entity.h"
7	root	1.4	#include "oct.h"
8	root	1.1
9			void entity_base::update_bbox ()
10			{
11			if (parent)
12			parent->update_bbox ();
13			}
14
15			void entity_base::hide ()
16			{
17			for (vector<octant *>::iterator i = o.end (); i-- != o.begin (); )
18			(*i)->remove (this);
19
20			o.clear ();
21			}
22
23			void entity_filter::update_bbox ()
24			{
25			bbox = e->bbox;
26			entity_base::update_bbox ();
27			}
28
29			void entity_filter::show (const sector &sec)
30			{
31	root	1.8	world.add (sec, this);
32
33	root	1.1	e->show (sec);
34			}
35
36	root	1.4	void entity_filter::draw (const draw_context &ctx)
37	root	1.1	{
38	root	1.4	e->draw (ctx);
39	root	1.1	}
40
41			entity_filter::~entity_filter ()
42			{
43			delete e;
44			}
45
46			void entity::show (const sector &sec)
47			{
48	root	1.2	show ();
49			}
50
51			void entity::show ()
52			{
53	root	1.1	e->show (this->sec);
54			}
55
56	root	1.4	void entity::draw (const draw_context &ctx)
57	root	1.1	{
58	root	1.2	glPushMatrix ();
59	root	1.4	glTranslated (-sec.x, -sec.y, -sec.z);
60			e->draw (ctx);
61	root	1.2	glPopMatrix ();
62	root	1.1	}
63
64			void entity_container::update_bbox ()
65			{
66			bbox.reset ();
67
68			for (iterator i = end (); i-- != begin (); )
69			{
70			(*i)->update_bbox ();
71			bbox.add ((*i)->bbox);
72			}
73			}
74
75			void entity_container::show (const sector &sec)
76			{
77	root	1.8	world.add (sec, this);
78
79	root	1.1	for (iterator i = end (); i-- != begin (); )
80			(*i)->show (sec);
81			}
82
83	root	1.4	void entity_container::draw (const draw_context &ctx)
84	root	1.1	{
85			for (iterator i = end (); i-- != begin (); )
86	root	1.4	(*i)->draw (ctx);
87	root	1.1	}
88
89			entity_container::~entity_container ()
90			{
91			hide ();
92
93			for (iterator i = end (); i-- != begin (); )
94			delete *i;
95
96			clear ();
97	root	1.2	}
98
99			template entity_opengl1d<GL_POINTS>;
100			template entity_opengl1d<GL_LINES>;
101			template entity_opengl1d<GL_LINE_STRIP>;
102			template entity_opengl1d<GL_LINE_LOOP>;
103			template entity_opengl2d<GL_TRIANGLES>;
104			template entity_opengl2d<GL_TRIANGLE_STRIP>;
105			template entity_opengl2d<GL_TRIANGLE_FAN>;
106			template entity_opengl2d<GL_QUADS>;
107			template entity_opengl2d<GL_QUAD_STRIP>;
108			template entity_opengl2d<GL_POLYGON>;
109
110			template<GLenum type>
111			void entity_opengl1d<type>::update_bbox ()
112			{
113	root	1.6	bbox.reset ();
114
115			for (vector<vertex1d>::iterator i = end (); i-- != begin (); )
116			bbox.add (i->p);
117
118	root	1.2	entity_base::update_bbox ();
119			}
120
121			template<GLenum type>
122			void entity_opengl2d<type>::update_bbox ()
123			{
124	root	1.7	for (vector<vertex2d>::iterator i = end (); i-- != begin (); )
125	root	1.6	bbox.add (i->p);
126
127	root	1.2	entity_base::update_bbox ();
128			}
129
130			template<GLenum type>
131	root	1.4	void entity_opengl1d<type>::draw (const draw_context &ctx)
132	root	1.2	{
133			glBegin (type);
134
135			for (iterator i = begin (); i < end (); ++i)
136			{
137	root	1.4	if (ctx.mode == draw_context::LIGHTED)
138			glColor3fv ((GLfloat *)&i->c);
139
140	root	1.2	glVertex3fv ((GLfloat *)&i->p);
141			}
142
143			glEnd ();
144			}
145
146			template<GLenum type>
147	root	1.4	void entity_opengl2d<type>::draw (const draw_context &ctx)
148	root	1.2	{
149			glBegin (type);
150
151	root	1.5	if (ctx.mode == draw_context::LIGHTED)
152			{
153			glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *)&m.diffuse);
154			glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *)&m.specular);
155			glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *)&m.emission);
156	root	1.9	glMaterialf (GL_FRONT, GL_SHININESS, m.shininess);
157	root	1.5	}
158
159	root	1.2	for (iterator i = begin (); i < end (); ++i)
160			{
161	root	1.4	if (ctx.mode == draw_context::LIGHTED)
162			{
163			glTexCoord2fv ((GLfloat *)&i->t);
164			glNormal3fv ((GLfloat *)&i->n);
165			}
166
167	root	1.2	glVertex3fv ((GLfloat *)&i->p);
168			}
169
170			glEnd ();
171			}
172
173			template<GLenum type>
174			void entity_opengl1d<type>::show (const sector &sec)
175			{
176	root	1.8	world.add (sec, this);
177	root	1.2	}
178
179			template<GLenum type>
180			void entity_opengl2d<type>::show (const sector &sec)
181			{
182	root	1.8	world.add (sec, this);
183	root	1.2	}
184
185	root	1.4	void view::draw (const draw_context &ctx)
186	root	1.2	{
187			glViewport (0, 0, w, h);
188
189			glMatrixMode (GL_PROJECTION);
190			glLoadIdentity ();
191
192	root	1.10	GLdouble aspect = (GLdouble)w/h;
193			GLdouble zNear = 0.0001;
194			GLdouble zFar = 1000.;
195	root	1.2
196			{
197	root	1.10	GLdouble ymax = zNear * tan (fov * (M_PI / 360.0));
198	root	1.2
199	root	1.10	glFrustum (-ymax * aspect, ymax * aspect, -ymax, ymax, zNear, zFar);
200	root	1.2	}
201
202			vec3 rz = -d;
203			vec3 rx = cross (u, rz);
204			vec3 ry = cross (rz, rx);
205
206			GLfloat m[4][4];
207			m[0][0] = rx.x; m[0][1] = rx.y; m[0][2] = rx.z; m[0][3] = 0;
208			m[1][0] = ry.x; m[1][1] = ry.y; m[1][2] = ry.z; m[1][3] = 0;
209			m[2][0] = rz.x; m[2][1] = rz.y; m[2][2] = rz.z; m[2][3] = 0;
210			m[3][0] = 0; m[3][1] = 0; m[3][2] = 0; m[3][3] = 1;
211			glMultMatrixf ((GLfloat *)m);
212
213			glTranslatef (-p.x, -p.y, -p.z);
214
215			glMatrixMode (GL_MODELVIEW);
216			glLoadIdentity ();
217
218	root	1.4	world.draw (ctx);
219	root	1.1	}
220
221