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source: orxonox.OLD/trunk/src/world_entities/skybox.cc @ 7143

Last change on this file since 7143 was 7125, checked in by bensch, 19 years ago

try fix

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
16#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD_ENTITY
17
18#include "skybox.h"
19
20#include "load_param.h"
21#include "factory.h"
22#include "static_model.h"
23
24#include "material.h"
25#include "texture.h"
26
27#include "network_game_manager.h"
28#include "converter.h"
29#include "resource_manager.h"
30
31
32using namespace std;
33
34CREATE_FACTORY(SkyBox, CL_SKYBOX);
35
36/**
37 * Constructs a SkyBox and takes fileName as a map.
38 * @param fileName the file to take as input for the SkyBox
39*/
40SkyBox::SkyBox(const char* fileName)
41{
42  this->preInit();
43  if (fileName)
44    this->setTextureAndType(fileName, ".jpg");
45  this->postInit();
46}
47
48/**
49 *  initializes a skybox from a XmlElement
50*/
51SkyBox::SkyBox(const TiXmlElement* root)
52{
53  this->preInit();
54
55  if( root != NULL)
56    this->loadParams(root);
57
58  this->postInit();
59}
60
61void SkyBox::loadParams(const TiXmlElement* root)
62{
63  WorldEntity::loadParams(root);
64
65  LoadParam(root, "Materialset", this, SkyBox, setTexture)
66      .describe("Sets the material on the SkyBox. The string must be the path relative to the data-dir, and without a trailing .jpg");
67
68  LoadParam(root, "Size", this, SkyBox, setSize)
69      .describe("Sets the Size of the SkyBox (normally this should be 90% of the maximal viewing Distance).");
70}
71
72void SkyBox::preInit()
73{
74  this->setClassID(CL_SKYBOX, "SkyBox");
75  this->toList(OM_ENVIRON_NOTICK);
76  //this->size = 100.0;
77  this->textureSize = 1024.0f;
78
79  for (int i = 0; i < 6; i++)
80    {
81      this->material[i] = new Material();
82      this->material[i]->setIllum(3);
83      this->material[i]->setDiffuse(0.0,0.0,0.0);
84      this->material[i]->setSpecular(0.0,0.0,0.0);
85      this->material[i]->setAmbient(2.0, 2.0, 2.0);
86
87      this->cubeTexture[i] = NULL;
88    }
89  this->setParentMode(PNODE_MOVEMENT);
90
91  this->textureName = NULL;
92}
93
94void SkyBox::postInit()
95{
96  this->rebuild();
97}
98
99
100/**
101 *  default destructor
102*/
103SkyBox::~SkyBox()
104{
105  PRINTF(5)("Deleting SkyBox\n");
106  for (int i = 0; i < 6; i++)
107  {
108    if( this->material[i])
109      delete this->material[i];
110    if( this->cubeTexture[i])
111      ResourceManager::getInstance()->unload(this->cubeTexture[i]);
112  }
113}
114
115/**
116 *  sets A set of textures when just giving a Name and an extension:
117
118   usage: give this function an argument like
119   setTexture("skybox", "jpg");
120   and it will convert this to
121   setTextures("skybox_top.jpg", "skybox_bottom.jpg", "skybox_left.jpg",
122               "skybox_right.jpg", "skybox_front.jpg", "skybox_back.jpg");
123*/
124void SkyBox::setTextureAndType(const char* name, const char* extension)
125{
126  char* top    = new char[strlen(name)+strlen(extension)+ 10];
127  char* bottom = new char[strlen(name)+strlen(extension)+ 10];
128  char* left   = new char[strlen(name)+strlen(extension)+ 10];
129  char* right  = new char[strlen(name)+strlen(extension)+ 10];
130  char* front  = new char[strlen(name)+strlen(extension)+ 10];
131  char* back   = new char[strlen(name)+strlen(extension)+ 10];
132
133  sprintf(top, "%s_top.%s", name, extension);
134  sprintf(bottom, "%s_bottom.%s", name, extension);
135  sprintf(left, "%s_left.%s", name, extension);
136  sprintf(right, "%s_right.%s", name, extension);
137  sprintf(front, "%s_front.%s", name, extension);
138  sprintf(back, "%s_back.%s", name, extension);
139
140  this->setTextures(top, bottom, left, right, front, back);
141
142  // deleted alocated memory of this function
143  delete []top;
144  delete []bottom;
145  delete []left;
146  delete []right;
147  delete []front;
148  delete []back;
149}
150
151/**
152 *  Defines which textures should be loaded onto the SkyBox.
153 * @param top the top texture.
154 * @param bottom the bottom texture.
155 * @param left the left texture.
156 * @param right the right texture.
157 * @param front the front texture.
158 * @param back the back texture.
159*/
160void SkyBox::setTextures(const char* top, const char* bottom, const char* left,
161                          const char* right, const char* front, const char* back)
162{
163  this->material[0]->setDiffuseMap(top);
164  this->material[1]->setDiffuseMap(bottom);
165  this->material[2]->setDiffuseMap(left);
166  this->material[3]->setDiffuseMap(right);
167  this->material[4]->setDiffuseMap(front);
168  this->material[5]->setDiffuseMap(back);
169  if (GLEW_EXT_texture_cube_map)
170    this->loadCubeMapTextures(top, bottom, left, right, front, back);
171}
172
173void SkyBox::loadCubeMapTextures(const char* top, const char* bottom, const char* left,
174                                  const char* right, const char* front, const char* back)
175{
176  this->cubeTexture[0] = (Texture*)ResourceManager::getInstance()->load(top, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_POSITIVE_Y_EXT);
177  this->cubeTexture[1] = (Texture*)ResourceManager::getInstance()->load(bottom, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT);
178  this->cubeTexture[2] = (Texture*)ResourceManager::getInstance()->load(left, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT);
179  this->cubeTexture[3] = (Texture*)ResourceManager::getInstance()->load(right, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_POSITIVE_Z_EXT);
180  this->cubeTexture[4] = (Texture*)ResourceManager::getInstance()->load(front, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_POSITIVE_X_EXT);
181  this->cubeTexture[5] = (Texture*)ResourceManager::getInstance()->load(back, RP_LEVEL, IMAGE, GL_TEXTURE_CUBE_MAP_NEGATIVE_X_EXT);
182}
183
184void SkyBox::enableCubeMap()
185{
186  glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
187  glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
188  glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
189
190  glEnable(GL_TEXTURE_CUBE_MAP_EXT);
191
192  glEnable(GL_TEXTURE_GEN_S);
193  glEnable(GL_TEXTURE_GEN_T);
194  glEnable(GL_TEXTURE_GEN_R);
195
196}
197
198void SkyBox::disableCubeMap()
199{
200  glDisable(GL_TEXTURE_CUBE_MAP);
201  glDisable(GL_TEXTURE_2D);
202  glDisable(GL_TEXTURE_GEN_S);
203  glDisable(GL_TEXTURE_GEN_T);
204  glDisable(GL_TEXTURE_GEN_R);
205
206  glDisable(GL_TEXTURE_GEN_S);
207  glDisable(GL_TEXTURE_GEN_T);
208  glDisable(GL_TEXTURE_GEN_R);
209}
210
211
212
213/**
214 * @param size The new size of the SkyBox
215
216 * do not forget to rebuild the SkyBox after this.
217*/
218void SkyBox::setSize(float size)
219{
220  this->size = size;
221}
222
223
224
225void SkyBox::draw()
226{
227  glPushAttrib(GL_ENABLE_BIT);
228//   glPushAttrib(GL_LIGHTING_BIT);
229  glDisable(GL_LIGHTING);
230
231  glPushAttrib(GL_ENABLE_BIT);
232  glDisable(GL_FOG);
233
234  WorldEntity::draw();
235
236  glPopAttrib();
237  glPopAttrib();
238
239}
240
241
242/**
243 *  rebuilds the SkyBox
244
245   this must be done, when changing the Size of the Skybox (runtime-efficency)
246*/
247void SkyBox::rebuild()
248{
249  StaticModel* model = new StaticModel();
250
251  model->addVertex (-0.5*size, -0.5*size, 0.5*size);
252  model->addVertex (0.5*size, -0.5*size, 0.5*size);
253  model->addVertex (-0.5*size, 0.5*size, 0.5*size);
254  model->addVertex (0.5*size, 0.5*size, 0.5*size);
255  model->addVertex (-0.5*size, 0.5*size, -0.5*size);
256  model->addVertex (0.5*size, 0.5*size, -0.5*size);
257  model->addVertex (-0.5*size, -0.5*size, -0.5*size);
258  model->addVertex (0.5*size, -0.5*size, -0.5*size);
259
260//   model->addVertexTexture (0.0, 1.0);
261//   model->addVertexTexture (1.0, 1.0);
262//   model->addVertexTexture (1.0, 0.0);
263//   model->addVertexTexture (0.0, 0.0);
264
265  model->addVertexTexture (1.0/this->textureSize, (this->textureSize - 1.0)/this->textureSize);
266  model->addVertexTexture ((this->textureSize - 1.0)/this->textureSize, (this->textureSize - 1.0)/this->textureSize);
267  model->addVertexTexture ((this->textureSize - 1.0)/this->textureSize, 1.0/this->textureSize);
268  model->addVertexTexture (1.0/this->textureSize, 1.0/this->textureSize);
269
270
271  model->addVertexNormal (0.0, 0.0, 1.0);
272  model->addVertexNormal (0.0, 1.0, 0.0);
273  model->addVertexNormal (0.0, 0.0, -1.0);
274  model->addVertexNormal (0.0, -1.0, 0.0);
275  model->addVertexNormal (1.0, 0.0, 0.0);
276  model->addVertexNormal (-1.0, 0.0, 0.0);
277
278  model->setMaterial(material[0]);
279  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 2,0,3, 3,1,3, 5,2,3, 4,3,3); // top
280  model->setMaterial(material[1]);
281  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 6,0,1, 7,1,1, 1,2,1, 0,3,1); // bottom
282  model->setMaterial(material[2]);
283  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 4,2,2, 5,3,2, 7,0,2, 6,1,2); // left
284  model->setMaterial(material[3]);
285  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 0,0,0, 1,1,0, 3,2,0, 2,3,0); // right
286  model->setMaterial(material[4]);
287  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 1,0,5, 7,1,5, 5,2,5, 3,3,5); // front
288  model->setMaterial(material[5]);
289  model->addFace (4, VERTEX_TEXCOORD_NORMAL, 6,0,4, 0,1,4, 2,2,4, 4,3,4); // back
290
291  model->finalize();
292
293  this->setModel(model);
294}
295
296int SkyBox::writeBytes( const byte * data, int length, int sender )
297{
298  setRequestedSync( false );
299  setIsOutOfSync( false );
300
301  SYNCHELP_READ_BEGIN();
302
303  SYNCHELP_READ_FKT( WorldEntity::writeState, NWT_SB_WE_STATE );
304
305  SYNCHELP_READ_FLOAT( size, NWT_SB_SIZE );
306  if ( textureName )
307  {
308    delete[] textureName;
309    textureName = NULL;
310  }
311  SYNCHELP_READ_STRINGM( textureName, NWT_SB_TEXTURENAME );
312
313  this->setSize( size );
314  this->setTextureAndType( textureName, "jpg" );
315  this->rebuild();
316
317  return SYNCHELP_READ_N;
318}
319
320
321
322int SkyBox::readBytes( byte * data, int maxLength, int * reciever )
323{
324  if ( isOutOfSync() && !requestedSync() && this->getHostID()!=this->getOwner() )
325  {
326    (NetworkGameManager::getInstance())->sync( this->getUniqueID(), this->getOwner() );
327    setRequestedSync( true );
328  }
329
330  int rec = this->getRequestSync();
331  if ( rec > 0 )
332  {
333    *reciever = rec;
334
335    SYNCHELP_WRITE_BEGIN();
336
337    SYNCHELP_WRITE_FKT( WorldEntity::readState, NWT_SB_WE_STATE );
338
339    SYNCHELP_WRITE_FLOAT(this->size, NWT_SB_SIZE);
340    SYNCHELP_WRITE_STRING(this->textureName, NWT_SB_TEXTURENAME);
341
342    return SYNCHELP_WRITE_N;
343  }
344
345  *reciever = 0;
346  return 0;
347}
348
349void SkyBox::writeDebug( ) const
350{
351}
352
353void SkyBox::readDebug( ) const
354{
355}
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