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source: orxonox.OLD/orxonox/trunk/src/object.cc @ 2838

Last change on this file since 2838 was 2835, checked in by bensch, 20 years ago

orxonox/trunk/src: added the files again.
File size: 9.8 KB
Line 
1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer: Benjamin Grauer
13   co-programmer: ...
14*/
15
16int verbose = 0;
17
18#include "object.h"
19
20Object::Object ()
21{
22
23  initialize();
24
25  importFile ("reaphigh.obj");
26
27  finalize();
28}
29
30Object::Object(char* fileName)
31{
32  initialize();
33
34  importFile (fileName);
35
36  finalize();
37}
38
39Object::Object(char* fileName, float scaling)
40{
41  initialize();
42  scaleFactor = scaling;
43
44  importFile (fileName);
45
46  finalize();
47}
48
49bool Object::initialize (void)
50{
51  if (verbose >=3)
52    printf("new 3D-Object is being created\n"); 
53  faceMode = -1;
54  if ( (listNumber = glGenLists(1)) == 0 )
55    {
56      printf ("list could not be created for this Object\n");
57      return false;
58    }
59
60  mtlFileName = "";
61  scaleFactor = 1;
62  vertices = new Array();
63  normals = new Array();
64  vTexture = new Array();
65
66  glNewList (listNumber, GL_COMPILE);
67  glEnableClientState (GL_VERTEX_ARRAY);
68  glEnableClientState (GL_NORMAL_ARRAY);
69  //  glEnableClientState (GL_TEXTURE_COORD_ARRAY);
70
71  return true;
72}
73
74bool Object::importFile (char* fileName)
75{
76  if (verbose >=3)
77    printf("preparing to read in file: %s\n", fileName);   
78  objFileName = fileName;
79  this->readFromObjFile (objFileName);
80  return true;
81}
82
83bool Object::finalize(void)
84{
85  if (verbose >=3)
86    printf("finalizing the 3D-Object\n"); 
87  OBJ_FILE->close();
88  glEnd();
89  glEndList();
90  return true;
91}
92
93void Object::draw (void)
94{
95  if (verbose >=3)
96    printf("drawing the 3D-Object\n"); 
97  glCallList (listNumber);
98}
99
100
101bool Object::readFromObjFile (char* fileName)
102{
103  OBJ_FILE = new ifstream(fileName);
104  if (!OBJ_FILE->is_open())
105    {
106      if (verbose >=1)
107        printf ("unable to open .OBJ file: %s\n Loading Box Object instead.\n", fileName);
108      BoxObject();
109      return false;
110    }
111  objFileName = fileName;
112  char Buffer[500];
113  while(!OBJ_FILE->eof())
114    {
115      OBJ_FILE->getline(Buffer, 500);
116      if (verbose >=4)
117        printf ("Read input line: %s\n",Buffer);
118     
119
120      // case vertice
121      if (!strncmp(Buffer, "v ", 2))
122        {
123          readVertex(Buffer+2);
124        }
125
126      // case face
127      else if (!strncmp(Buffer, "f ", 2))
128        {
129          readFace (Buffer+2);
130        }
131     
132      else if (!strncmp(Buffer, "mtllib", 6))
133        {
134          readMtlLib (Buffer+7);
135        }
136
137      else if (!strncmp(Buffer, "usemtl", 6))
138        {
139          readUseMtl (Buffer+7);
140        }
141
142      // case VertexNormal
143      else if (!strncmp(Buffer, "vn ", 2))
144      {
145        readVertexNormal(Buffer+3);
146      }
147
148      // case vt
149      else if (!strncmp(Buffer, "vt ", 2))
150      {
151        readVertexTexture(Buffer+3);
152      }
153         
154
155    }
156 
157
158 
159 
160}
161
162
163bool Object::readVertex (char* vertexString)
164{
165  readVertices = true;
166  char subbuffer1[20];
167  char subbuffer2[20];
168  char subbuffer3[20];
169  sscanf (vertexString, "%s %s %s", subbuffer1, subbuffer2, subbuffer3);
170  if (verbose >= 3)
171    printf ("reading in a vertex: %s %s %s\n", subbuffer1, subbuffer2, subbuffer3);
172  vertices->addEntry(atof(subbuffer1)*scaleFactor, atof(subbuffer2)*scaleFactor, atof(subbuffer3)*scaleFactor);
173  return true;
174}
175
176bool Object::readFace (char* faceString)
177{
178  if (readVertices == true)
179    {
180      vertices->finalizeArray();
181      glVertexPointer(3, GL_FLOAT, 0, vertices->getArray());
182      normals->finalizeArray();
183      glNormalPointer(GL_FLOAT, 0, normals->getArray());
184      vTexture->finalizeArray();
185    }
186
187  readVertices = false;
188  char subbuffer1[20];
189  char subbuffer2[20];
190  char subbuffer3[20];
191  char subbuffer4[20] ="";
192  sscanf (faceString, "%s %s %s %s", subbuffer1, subbuffer2, subbuffer3, subbuffer4);
193  if (!strcmp(subbuffer4, ""))
194    {
195      if (faceMode != 3)
196        {
197          if (faceMode != -1)
198            glEnd();
199          glBegin(GL_TRIANGLES);
200        }
201     
202      faceMode = 3;
203      if (verbose >=3)
204        printf ("found triag: %s, %s, %s\n", subbuffer1, subbuffer2, subbuffer3);
205      addGLElement(subbuffer1);
206      addGLElement(subbuffer2);
207      addGLElement(subbuffer3);
208      return true;
209    }
210  else
211    {
212      if (faceMode != 4)
213        {
214          if (faceMode != -1)
215            glEnd();
216          glBegin(GL_QUADS);
217        }
218      faceMode = 4;
219      if (verbose >=3 )
220        printf ("found quad: %s, %s, %s, %s\n", subbuffer1, subbuffer2, subbuffer3, subbuffer4);
221      addGLElement(subbuffer1);
222      addGLElement(subbuffer2);
223      addGLElement(subbuffer3);
224      addGLElement(subbuffer4);
225      return true;
226    }
227}
228
229bool Object::addGLElement (char* elementString)
230{
231  if (verbose >=3)
232    printf ("importing grafical Element.... including to openGL\n");
233  char* vertex = elementString;
234
235  char* texture;
236  texture = strstr (vertex, "/");
237  texture[0] = '\0';
238  texture ++;
239  glTexCoord2fv(vTexture->getArray()+(atoi(texture)-1)*2);
240
241  char* normal;
242  if ((normal = strstr (texture, "/")) !=NULL)
243    {
244      normal[0] = '\0';
245      normal ++;
246      //glArrayElement(atoi(vertex)-1);
247      glNormal3fv(normals->getArray() +(atoi(normal)-1)*3);
248    }
249  glVertex3fv(vertices->getArray() +(atoi(vertex)-1)*3);
250
251}
252
253bool Object::readVertexNormal (char* normalString)
254{
255  readVertices = true;
256  char subbuffer1[20];
257  char subbuffer2[20];
258  char subbuffer3[20];
259  sscanf (normalString, "%s %s %s", subbuffer1, subbuffer2, subbuffer3);
260  if (verbose >=3 )
261    printf("found vertex-Normal %s, %s, %s\n", subbuffer1,subbuffer2,subbuffer3);
262  normals->addEntry(atof(subbuffer1), atof(subbuffer2), atof(subbuffer3));
263  return true;
264}
265
266bool Object::readVertexTexture (char* vTextureString)
267{
268  readVertices = true;
269  char subbuffer1[20];
270  char subbuffer2[20];
271  sscanf (vTextureString, "%s %s", subbuffer1, subbuffer2);
272  if (verbose >=3 )
273    printf("found vertex-Texture %s, %s\n", subbuffer1,subbuffer2);
274  vTexture->addEntry(atof(subbuffer1));
275  vTexture->addEntry(atof(subbuffer2));
276  return true;
277}
278
279
280bool Object::readMtlLib (char* mtlFile)
281{
282  MTL_FILE = new ifstream (mtlFile);
283  if (!MTL_FILE->is_open())
284    {
285      if (verbose >= 1)
286        printf ("unable to open file: %s\n", mtlFile);
287      return false;
288    }
289  mtlFileName = mtlFile;
290  if (verbose >=2)
291    printf ("Opening mtlFile: %s\n", mtlFileName);
292  char Buffer[500];
293  vertices = new Array();
294  material = new Material();
295  Material* tmpMat = material;
296  while(!MTL_FILE->eof())
297    {
298      MTL_FILE->getline(Buffer, 500);
299      if (verbose >= 4)
300        printf("found line in mtlFile: %s\n", Buffer);
301     
302
303      // create new Material
304      if (!strncmp(Buffer, "newmtl ", 2))
305        {
306          tmpMat = tmpMat->addMaterial(Buffer+7);
307          //      printf ("%s, %p\n", tmpMat->getName(), tmpMat);
308        }
309      // setting a illumMode
310      else if (!strncmp(Buffer, "illum", 5))
311        {
312          tmpMat->setIllum(Buffer+6);
313
314        }
315      // setting Diffuse Color
316      else if (!strncmp(Buffer, "Kd", 2))
317        {
318          tmpMat->setDiffuse(Buffer+3);
319        }
320      // setting Ambient Color
321      else if (!strncmp(Buffer, "Ka", 2))
322        {
323          tmpMat->setAmbient(Buffer+3);
324        }
325      // setting Specular Color
326      else if (!strncmp(Buffer, "Ks", 2))
327        {
328          tmpMat->setSpecular(Buffer+3);
329        }
330    }
331  return true;
332}
333
334bool Object::readUseMtl (char* matString)
335{
336  if (!strcmp (mtlFileName, ""))
337    {
338      if (verbose >= 1)
339        printf ("Not using new defined material, because no mtlFile found yet\n");
340      return false;
341    }
342     
343  if (faceMode != -1)
344    glEnd();
345  faceMode = 0;
346  if (verbose >= 2)
347    printf ("using material %s for coming Faces.\n", matString);
348  material->search(matString)->select();
349}
350
351
352void Object::BoxObject(void)
353{
354  readVertex ("-0.500000 -0.500000 0.500000");
355  readVertex ("0.500000 -0.500000 0.500000");
356  readVertex ("-0.500000 0.500000 0.500000");
357  readVertex ("0.500000 0.500000 0.500000");
358  readVertex ("-0.500000 0.500000 -0.500000");
359  readVertex ("0.500000 0.500000 -0.500000");
360  readVertex ("-0.500000 -0.500000 -0.500000");
361  readVertex ("0.500000 -0.500000 -0.500000");
362  readVertexTexture ("0.000000 0.000000");
363  readVertexTexture ("1.000000 0.000000");
364  readVertexTexture ("0.000000 1.000000");
365  readVertexTexture ("1.000000 1.000000");
366  readVertexTexture ("0.000000 2.000000");
367  readVertexTexture ("1.000000 2.000000");
368  readVertexTexture ("0.000000 3.000000");
369  readVertexTexture ("1.000000 3.000000");
370  readVertexTexture ("0.000000 4.000000");
371  readVertexTexture ("1.000000 4.000000");
372  readVertexTexture ("2.000000 0.000000");
373  readVertexTexture ("2.000000 1.000000");
374  readVertexTexture ("-1.000000 0.000000");
375  readVertexTexture ("-1.000000 1.000000");
376 
377  readVertexNormal ("0.000000 0.000000 1.000000");
378  readVertexNormal ("0.000000 0.000000 1.000000");
379  readVertexNormal ("0.000000 0.000000 1.000000");
380  readVertexNormal ("0.000000 0.000000 1.000000");
381  readVertexNormal ("0.000000 1.000000 0.000000");
382  readVertexNormal ("0.000000 1.000000 0.000000");
383  readVertexNormal ("0.000000 1.000000 0.000000");
384  readVertexNormal ("0.000000 1.000000 0.000000");
385  readVertexNormal ("0.000000 0.000000 -1.000000");
386  readVertexNormal ("0.000000 0.000000 -1.000000");
387  readVertexNormal ("0.000000 0.000000 -1.000000");
388  readVertexNormal ("0.000000 0.000000 -1.000000");
389  readVertexNormal ("0.000000 -1.000000 0.000000");
390  readVertexNormal ("0.000000 -1.000000 0.000000");
391  readVertexNormal ("0.000000 -1.000000 0.000000");
392  readVertexNormal ("0.000000 -1.000000 0.000000");
393  readVertexNormal ("1.000000 0.000000 0.000000");
394  readVertexNormal ("1.000000 0.000000 0.000000");
395  readVertexNormal ("1.000000 0.000000 0.000000");
396  readVertexNormal ("1.000000 0.000000 0.000000");
397  readVertexNormal ("-1.000000 0.000000 0.000000");
398  readVertexNormal ("-1.000000 0.000000 0.000000");
399  readVertexNormal ("-1.000000 0.000000 0.000000");
400  readVertexNormal ("-1.000000 0.000000 0.000000");
401
402  readFace ("1/1/1 2/2/2 4/4/3 3/3/4");
403  readFace ("3/3/5 4/4/6 6/6/7 5/5/8");
404  readFace ("5/5/9 6/6/10 8/8/11 7/7/12");
405  readFace ("7/7/13 8/8/14 2/10/15 1/9/16");
406  readFace ("2/2/17 8/11/18 6/12/19 4/4/20");
407  readFace ("7/13/21 1/1/22 3/3/23 5/14/24");
408}
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