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)
{
  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)
{
  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)
{
}

template<GLenum type>
void entity_opengl2d<type>::show (const sector &sec)
{
}

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

  glMatrixMode (GL_PROJECTION);
  glLoadIdentity ();

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

  {
    GLdouble xmin, xmax, ymin, ymax;

    ymax = zNear * tan (fov * (M_PI / 360.0));
    ymin = -ymax;
    xmin = ymin * aspect;
    xmax = ymax * aspect;

    glFrustum(xmin, xmax, ymin, 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:	1.7
Committed:	Sun Oct 3 03:20:22 2004 UTC (21 years, 11 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.6:	+1 -1 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			e->show (sec);
32			}
33
34	root	1.4	void entity_filter::draw (const draw_context &ctx)
35	root	1.1	{
36	root	1.4	e->draw (ctx);
37	root	1.1	}
38
39			entity_filter::~entity_filter ()
40			{
41			delete e;
42			}
43
44			void entity::show (const sector &sec)
45			{
46	root	1.2	show ();
47			}
48
49			void entity::show ()
50			{
51	root	1.1	e->show (this->sec);
52			}
53
54	root	1.4	void entity::draw (const draw_context &ctx)
55	root	1.1	{
56	root	1.2	glPushMatrix ();
57	root	1.4	glTranslated (-sec.x, -sec.y, -sec.z);
58			e->draw (ctx);
59	root	1.2	glPopMatrix ();
60	root	1.1	}
61
62			void entity_container::update_bbox ()
63			{
64			bbox.reset ();
65
66			for (iterator i = end (); i-- != begin (); )
67			{
68			(*i)->update_bbox ();
69			bbox.add ((*i)->bbox);
70			}
71			}
72
73			void entity_container::show (const sector &sec)
74			{
75			for (iterator i = end (); i-- != begin (); )
76			(*i)->show (sec);
77			}
78
79	root	1.4	void entity_container::draw (const draw_context &ctx)
80	root	1.1	{
81			for (iterator i = end (); i-- != begin (); )
82	root	1.4	(*i)->draw (ctx);
83	root	1.1	}
84
85			entity_container::~entity_container ()
86			{
87			hide ();
88
89			for (iterator i = end (); i-- != begin (); )
90			delete *i;
91
92			clear ();
93	root	1.2	}
94
95			template entity_opengl1d<GL_POINTS>;
96			template entity_opengl1d<GL_LINES>;
97			template entity_opengl1d<GL_LINE_STRIP>;
98			template entity_opengl1d<GL_LINE_LOOP>;
99			template entity_opengl2d<GL_TRIANGLES>;
100			template entity_opengl2d<GL_TRIANGLE_STRIP>;
101			template entity_opengl2d<GL_TRIANGLE_FAN>;
102			template entity_opengl2d<GL_QUADS>;
103			template entity_opengl2d<GL_QUAD_STRIP>;
104			template entity_opengl2d<GL_POLYGON>;
105
106			template<GLenum type>
107			void entity_opengl1d<type>::update_bbox ()
108			{
109	root	1.6	bbox.reset ();
110
111			for (vector<vertex1d>::iterator i = end (); i-- != begin (); )
112			bbox.add (i->p);
113
114	root	1.2	entity_base::update_bbox ();
115			}
116
117			template<GLenum type>
118			void entity_opengl2d<type>::update_bbox ()
119			{
120	root	1.7	for (vector<vertex2d>::iterator i = end (); i-- != begin (); )
121	root	1.6	bbox.add (i->p);
122
123	root	1.2	entity_base::update_bbox ();
124			}
125
126			template<GLenum type>
127	root	1.4	void entity_opengl1d<type>::draw (const draw_context &ctx)
128	root	1.2	{
129			glBegin (type);
130
131			for (iterator i = begin (); i < end (); ++i)
132			{
133	root	1.4	if (ctx.mode == draw_context::LIGHTED)
134			glColor3fv ((GLfloat *)&i->c);
135
136	root	1.2	glVertex3fv ((GLfloat *)&i->p);
137			}
138
139			glEnd ();
140			}
141
142			template<GLenum type>
143	root	1.4	void entity_opengl2d<type>::draw (const draw_context &ctx)
144	root	1.2	{
145			glBegin (type);
146
147	root	1.5	if (ctx.mode == draw_context::LIGHTED)
148			{
149			glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *)&m.diffuse);
150			glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *)&m.specular);
151			glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *)&m.emission);
152			glMaterialf (GL_FRONT, GL_SHININESS, m.shininess);
153			}
154
155	root	1.2	for (iterator i = begin (); i < end (); ++i)
156			{
157	root	1.4	if (ctx.mode == draw_context::LIGHTED)
158			{
159			glTexCoord2fv ((GLfloat *)&i->t);
160			glNormal3fv ((GLfloat *)&i->n);
161			}
162
163	root	1.2	glVertex3fv ((GLfloat *)&i->p);
164			}
165
166			glEnd ();
167			}
168
169			template<GLenum type>
170			void entity_opengl1d<type>::show (const sector &sec)
171			{
172			}
173
174			template<GLenum type>
175			void entity_opengl2d<type>::show (const sector &sec)
176			{
177			}
178
179	root	1.4	void view::draw (const draw_context &ctx)
180	root	1.2	{
181			glViewport (0, 0, w, h);
182
183			glMatrixMode (GL_PROJECTION);
184			glLoadIdentity ();
185
186			double aspect = (double)w/h;
187	root	1.4	double zNear = 0.0001;
188	root	1.2	double zFar = 1000.;
189
190			{
191			GLdouble xmin, xmax, ymin, ymax;
192
193			ymax = zNear * tan (fov * (M_PI / 360.0));
194			ymin = -ymax;
195			xmin = ymin * aspect;
196			xmax = ymax * aspect;
197
198			glFrustum(xmin, xmax, ymin, ymax, zNear, zFar);
199			}
200
201			vec3 rz = -d;
202			vec3 rx = cross (u, rz);
203			vec3 ry = cross (rz, rx);
204
205			GLfloat m[4][4];
206			m[0][0] = rx.x; m[0][1] = rx.y; m[0][2] = rx.z; m[0][3] = 0;
207			m[1][0] = ry.x; m[1][1] = ry.y; m[1][2] = ry.z; m[1][3] = 0;
208			m[2][0] = rz.x; m[2][1] = rz.y; m[2][2] = rz.z; m[2][3] = 0;
209			m[3][0] = 0; m[3][1] = 0; m[3][2] = 0; m[3][3] = 1;
210			glMultMatrixf ((GLfloat *)m);
211
212			glTranslatef (-p.x, -p.y, -p.z);
213
214			glMatrixMode (GL_MODELVIEW);
215			glLoadIdentity ();
216
217	root	1.4	world.draw (ctx);
218	root	1.1	}
219
220