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source: orxonox.OLD/trunk/src/world_entities/skybox.cc @ 5120

Last change on this file since 5120 was 4998, checked in by bensch, 19 years ago

orxonox/trunk: more optimizations of the Quaternion Class.
Now the 3D-rotation is much faster through this code:

Vector tmpRot = this→getAbsDir().getSpacialAxis();
glRotatef (this→getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z );

instead of the old Matrix-approach. furthermore glRotate is optimized much better in openGL as is clearly stated in the red book

also implemented some other really useless functions for Quaternion

File size: 6.2 KB
Line 
1
2/*
3   orxonox - the future of 3D-vertical-scrollers
4
5   Copyright (C) 2004 orx
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2, or (at your option)
10   any later version.
11
12   ### File Specific:
13   main-programmer: Benjamin Grauer
14   co-programmer: ...
15*/
16
17#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD_ENTITY
18
19
20#include "skybox.h"
21
22#include "stdincl.h"
23#include "factory.h"
24
25#include "material.h"
26#include "vector.h"
27#include "resource_manager.h"
28#include "model.h"
29//#include "world_entity.h"
30
31CREATE_FACTORY(SkyBox);
32
33using namespace std;
34
35/**
36 *  Constructs a SkyBox and takes fileName as a map.
37 * @param fileName the file to take as input for the SkyBox
38*/
39SkyBox::SkyBox(const char* fileName)
40{
41  this->preInit();
42  if (fileName)
43    this->setTextureAndType(fileName, ".jpg");
44  this->postInit();
45}
46
47/**
48 *  initializes a skybox from a XmlElement
49*/
50SkyBox::SkyBox(const TiXmlElement* root)
51{
52  this->preInit();
53
54  this->loadParams(root);
55
56  this->postInit();
57}
58
59void SkyBox::loadParams(const TiXmlElement* root)
60{
61  static_cast<WorldEntity*>(this)->loadParams(root);
62
63  LoadParam<SkyBox>(root, "Materialset", this, &SkyBox::setTexture)
64      .describe("Sets the material on the SkyBox. The string must be the path relative to the data-dir, and without a trailing .jpg");
65
66  LoadParam<SkyBox>(root, "Size", this, &SkyBox::setSize)
67      .describe("Sets the Size of the SkyBox (normally this should be 90% of the maximal viewing Distance).");
68}
69
70void SkyBox::preInit()
71{
72  this->setClassID(CL_SKYBOX, "SkyBox");
73
74  this->size = 100.0;
75
76  this->material = new Material*[6];
77  for (int i = 0; i < 6; i++)
78    {
79      this->material[i] = new Material();
80      this->material[i]->setIllum(3);
81      this->material[i]->setDiffuse(0.0,0.0,0.0);
82      this->material[i]->setSpecular(0.0,0.0,0.0);
83      this->material[i]->setAmbient(2.0, 2.0, 2.0);
84    }
85  this->setParentMode(PNODE_MOVEMENT);
86}
87
88void SkyBox::postInit()
89{
90  this->rebuild();
91}
92
93
94/**
95 *  default destructor
96*/
97SkyBox::~SkyBox()
98{
99  PRINTF(5)("Deleting SkyBox\n");
100  for (int i = 0; i < 6; i++)
101    delete this->material[i];
102  delete []this->material;
103}
104
105/**
106 *  sets A set of textures when just giving a Name and an extension:
107
108   usage: give this function an argument like
109   setTexture("skybox", "jpg");
110   and it will convert this to
111   setTextures("skybox_top.jpg", "skybox_bottom.jpg", "skybox_left.jpg",
112               "skybox_right.jpg", "skybox_front.jpg", "skybox_back.jpg");
113*/
114void SkyBox::setTextureAndType(const char* name, const char* extension)
115{
116  char* top    = new char[strlen(name)+strlen(extension)+ 10];
117  char* bottom = new char[strlen(name)+strlen(extension)+ 10];
118  char* left   = new char[strlen(name)+strlen(extension)+ 10];
119  char* right  = new char[strlen(name)+strlen(extension)+ 10];
120  char* front  = new char[strlen(name)+strlen(extension)+ 10];
121  char* back   = new char[strlen(name)+strlen(extension)+ 10];
122
123  sprintf(top, "%s_top.%s", name, extension);
124  sprintf(bottom, "%s_bottom.%s", name, extension);
125  sprintf(left, "%s_left.%s", name, extension);
126  sprintf(right, "%s_right.%s", name, extension);
127  sprintf(front, "%s_front.%s", name, extension);
128  sprintf(back, "%s_back.%s", name, extension);
129
130  this->setTextures(top, bottom, left, right, front, back);
131
132  // deleted alocated memory of this function
133  delete []top;
134  delete []bottom;
135  delete []left;
136  delete []right;
137  delete []front;
138  delete []back;
139}
140
141/**
142 *  Defines which textures should be loaded onto the SkyBox.
143 * @param top the top texture.
144 * @param bottom the bottom texture.
145 * @param left the left texture.
146 * @param right the right texture.
147 * @param front the front texture.
148 * @param back the back texture.
149*/
150void SkyBox::setTextures(const char* top, const char* bottom, const char* left, const char* right, const char* front, const char* back)
151{
152  this->material[0]->setDiffuseMap(top);
153  this->material[1]->setDiffuseMap(bottom);
154  this->material[2]->setDiffuseMap(left);
155  this->material[3]->setDiffuseMap(right);
156  this->material[4]->setDiffuseMap(front);
157  this->material[5]->setDiffuseMap(back);
158}
159
160/**
161 * @param size The new size of the SkyBox
162
163 * do not forget to rebuild the SkyBox after this.
164*/
165void SkyBox::setSize(float size)
166{
167  this->size = size;
168}
169
170/**
171 *  rebuilds the SkyBox
172
173   this must be done, when changing the Size of the Skybox (runtime-efficency)
174*/
175void SkyBox::rebuild()
176{
177  if (this->model)
178    delete this->model;
179  model = new Model();
180
181  this->model->addVertex (-0.5*size, -0.5*size, 0.5*size);
182  this->model->addVertex (0.5*size, -0.5*size, 0.5*size);
183  this->model->addVertex (-0.5*size, 0.5*size, 0.5*size);
184  this->model->addVertex (0.5*size, 0.5*size, 0.5*size);
185  this->model->addVertex (-0.5*size, 0.5*size, -0.5*size);
186  this->model->addVertex (0.5*size, 0.5*size, -0.5*size);
187  this->model->addVertex (-0.5*size, -0.5*size, -0.5*size);
188  this->model->addVertex (0.5*size, -0.5*size, -0.5*size);
189
190  this->model->addVertexTexture (0.0, 1.0);
191  this->model->addVertexTexture (1.0, 1.0);
192  this->model->addVertexTexture (1.0, 0.0);
193  this->model->addVertexTexture (0.0, 0.0);
194
195  this->model->addVertexNormal (0.0, 0.0, 1.0);
196  this->model->addVertexNormal (0.0, 1.0, 0.0);
197  this->model->addVertexNormal (0.0, 0.0, -1.0);
198  this->model->addVertexNormal (0.0, -1.0, 0.0);
199  this->model->addVertexNormal (1.0, 0.0, 0.0);
200  this->model->addVertexNormal (-1.0, 0.0, 0.0);
201
202  this->model->setMaterial(material[0]);
203  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 2,0,3, 3,1,3, 5,2,3, 4,3,3); // top
204  this->model->setMaterial(material[1]);
205  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 6,0,1, 7,1,1, 1,2,1, 0,3,1); // bottom
206  this->model->setMaterial(material[2]);
207  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 4,2,2, 5,3,2, 7,0,2, 6,1,2); // left
208  this->model->setMaterial(material[3]);
209  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 0,0,0, 1,1,0, 3,2,0, 2,3,0); // right
210  this->model->setMaterial(material[4]);
211  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 1,0,5, 7,1,5, 5,2,5, 3,3,5); // front
212  this->model->setMaterial(material[5]);
213  this->model->addFace (4, VERTEX_TEXCOORD_NORMAL, 6,0,4, 0,1,4, 2,2,4, 4,3,4); // back
214
215  this->model->finalize();
216}
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