source: flair-src/trunk/lib/FlairSimulator/src/Parser.cpp@ 84

Last change on this file since 84 was 69, checked in by Sanahuja Guillaume, 8 years ago

refonte camera simu
File size: 8.3 KB
Line 
1// %flair:license{
2// This file is part of the Flair framework distributed under the
3// CECILL-C License, Version 1.0.
4// %flair:license}
5// created: 2013/08/02
6// filename: Parser.cpp
7//
8// author: César Richard
9// Copyright Heudiasyc UMR UTC/CNRS 7253
10//
11// version: $Id: $
12//
13// purpose: classe chargeant un XML decrivant une map
14//
15/*********************************************************************/
16#ifdef GL
17
18#include "Parser.h"
19#include "Simulator.h"
20#include "GenericObject.h"
21#include <vector3d.h>
22#include <IrrlichtDevice.h>
23#include <IFileSystem.h>
24#include "GenericObject.h"
25
26using namespace irr;
27using namespace irr::core;
28using namespace irr::scene;
29using namespace irr::video;
30using namespace flair::core;
31using namespace flair::simulator;
32
33// todo: getMeshVect doit plutot donner point3D et euler
34// adaptr le xml et la dtd
35
36namespace flair {
37namespace simulator {
38Parser::Parser(Simulator *parent, int app_width, int app_height,
39 int scene_width, int scene_height, std::string media_path,
40 std::string xmlFile)
41 : Gui(parent, "Parser", app_width, app_height, scene_width, scene_height,
42 media_path) {
43 this->media_path = media_path;
44 this->parent = parent;
45 xmlNode *root_element = NULL;
46 doc = xmlReadFile(xmlFile.c_str(), NULL, 0);
47 xmlDtdPtr dtd = NULL;
48 dtd = xmlParseDTD(NULL,
49 (const xmlChar *)(media_path.append("/scene.dtd").c_str()));
50
51 if (dtd == NULL) {
52 // xmlGenericError(xmlGenericErrorContext,
53 Err("Could not parse DTD scene.dtd\n");
54 } else {
55 xmlValidCtxt cvp;
56 cvp.userData = (void *)stderr;
57 cvp.error = (xmlValidityErrorFunc)fprintf;
58 cvp.warning = (xmlValidityWarningFunc)fprintf;
59 if (!xmlValidateDtd(&cvp, doc, dtd)) {
60 // xmlGenericError(xmlGenericErrorContext,
61 Err("Document does not validate against scene.dtd\n");
62 }
63 }
64
65 if (doc == NULL) {
66 Err("error: could not parse file %s\n", xmlFile.c_str());
67 } else {
68 /*
69 * Get the root element node
70 */
71 root_element = xmlDocGetRootElement(doc);
72 processElements(root_element);
73 }
74}
75
76Parser::~Parser() {
77 if (doc != NULL) {
78 /*
79 * free the document
80 */
81 xmlFreeDoc(doc);
82 ;
83 }
84 /*
85 *Free the global variables that may
86 *have been allocated by the parser.
87 */
88 xmlCleanupParser();
89}
90
91/* Recursive function that prints the XML structure */
92void Parser::processElements(xmlNode *a_node) {
93 xmlNode *cur_node = NULL;
94 for (cur_node = a_node; cur_node; cur_node = cur_node->next) {
95 if (cur_node->type == XML_ELEMENT_NODE) {
96 if (xmlStrEqual(cur_node->name, (xmlChar *)"params")) {
97 processParams(cur_node->children);
98 } else if (xmlStrEqual(cur_node->name, (xmlChar *)"objects")) {
99 processObjects(cur_node->children);
100 } else {
101 processElements(cur_node->children);
102 }
103 }
104 }
105}
106
107void Parser::processObjects(xmlNode *a_node) {
108 FILE *fp;
109 std::string fileName;
110 xmlNode *cur_node = NULL;
111
112 const IGeometryCreator *geo;
113
114 geo = getGui()->getSceneManager()->getGeometryCreator();
115
116 for (cur_node = a_node; cur_node; cur_node = cur_node->next) {
117 if (xmlStrEqual(cur_node->name, (xmlChar *)"mesh")) {
118 fileName = this->media_path;
119 fp = NULL;
120 fp = fopen(fileName.append((char *)xmlGetProp(
121 cur_node, (xmlChar *)"model")).c_str(),
122 "rb");
123 if (fp != NULL) {
124 GenericObject *object =
125 new GenericObject(parent, "Object", getSceneManager());
126 object->setMesh(getGui()->getMesh(
127 (char *)xmlGetProp(cur_node, (xmlChar *)"model")));
128 object->setPosition(
129 getMeshVect(cur_node->children, (xmlChar *)"position"));
130 object->setRotation(
131 getMeshVect(cur_node->children, (xmlChar *)"rotation"));
132 object->setScale(getMeshVect(cur_node->children, (xmlChar *)"scale"));
133 object->render();
134 } else {
135 Err("FATAL ERROR : File %s doesn't exist !\r\n",
136 (char *)xmlGetProp(cur_node, (xmlChar *)"model"));
137 }
138 } else if (xmlStrEqual(cur_node->name, (xmlChar *)"cylinder")) {
139 GenericObject *object =
140 new GenericObject(parent, "Object", getSceneManager());
141 object->setMesh(geo->createCylinderMesh(
142 ToIrrlichtScale(
143 atof((char *)xmlGetProp(cur_node, (xmlChar *)"radius"))),
144 ToIrrlichtScale(
145 atof((char *)xmlGetProp(cur_node, (xmlChar *)"length"))),
146 atof((char *)xmlGetProp(cur_node, (xmlChar *)"tesselation")),
147 SColor(100, 255, 100, 100)));
148 object->setPosition(
149 getMeshVect(cur_node->children, (xmlChar *)"position"));
150 object->setRotation(
151 getMeshVect(cur_node->children, (xmlChar *)"rotation"));
152 object->setScale(getMeshVect(cur_node->children, (xmlChar *)"scale"));
153 // object->setMaterialTexture(0,getTexture("/home/apeiron/igep/uav_dev_svn/trunk/media/nskinbl.jpg"));
154 object->setMaterialType(video::EMT_SOLID);
155 object->render();
156 } else if (xmlStrEqual(cur_node->name, (xmlChar *)"eight")) {
157 GenericObject *object =
158 new GenericObject(parent, "Object", getSceneManager());
159 object->setMesh(geo->createCubeMesh(
160 vector3df(atof((char *)xmlGetProp(cur_node, (xmlChar *)"length")),
161 atof((char *)xmlGetProp(cur_node, (xmlChar *)"width")),
162 atof((char *)xmlGetProp(cur_node, (xmlChar *)"eight")))));
163 object->setPosition(
164 getMeshVect(cur_node->children, (xmlChar *)"position"));
165 object->setRotation(
166 getMeshVect(cur_node->children, (xmlChar *)"rotation"));
167 object->setScale(getMeshVect(cur_node->children, (xmlChar *)"scale"));
168 object->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL);
169 // object->getMaterial(0).Textures[0] =
170 // getTexture("/home/apeiron/igep/uav_dev_svn/trunk/media/nskinbl.jpg");
171 object->setMaterialFlag(EMF_LIGHTING, false);
172 object->render();
173 }
174 }
175}
176
177void Parser::processParams(xmlNode *a_node) {
178
179 xmlNode *cur_node = NULL;
180 for (cur_node = a_node; cur_node; cur_node = cur_node->next) {
181 if (xmlStrEqual(cur_node->name, (xmlChar *)"archive")) {
182 std::string file =
183 media_path + "/" + (char *)xmlGetProp(cur_node, (xmlChar *)"path");
184 getDevice()->getFileSystem()->addFileArchive(file.c_str());
185 } else if (xmlStrEqual(cur_node->name, (xmlChar *)"mesh")) {
186 setMesh((char *)xmlGetProp(cur_node, (xmlChar *)"model"),
187 getSceneVect(cur_node->children, (xmlChar *)"position"),
188 getSceneVect(cur_node->children, (xmlChar *)"rotation"),
189 getSceneVect(cur_node->children, (xmlChar *)"scale", true));
190 }
191 }
192}
193// todo rendre un vector3D framework
194// retirer irr::core::vector3df ToIrrlichtCoordinates(irr::core::vector3df
195// vect);
196vector3df Parser::getMeshVect(xmlNode *mesh_node, xmlChar *param) {
197 xmlNode *cur_node = NULL;
198 for (cur_node = mesh_node; cur_node; cur_node = cur_node->next) {
199 if (xmlStrEqual(cur_node->name, param)) {
200 return vector3df(atof((char *)xmlGetProp(cur_node, (xmlChar *)"x")),
201 atof((char *)xmlGetProp(cur_node, (xmlChar *)"y")),
202 atof((char *)xmlGetProp(cur_node, (xmlChar *)"z")));
203 }
204 }
205 return vector3df(0, 0, 0);
206}
207
208vector3df Parser::getSceneVect(xmlNode *mesh_node, xmlChar *param,
209 bool isScale) {
210 xmlNode *cur_node = NULL;
211 for (cur_node = mesh_node; cur_node; cur_node = cur_node->next) {
212 if (xmlStrEqual(cur_node->name, param)) {
213 if (isScale) {
214 return vector3df(atof((char *)xmlGetProp(cur_node, (xmlChar *)"x")),
215 atof((char *)xmlGetProp(cur_node, (xmlChar *)"z")),
216 atof((char *)xmlGetProp(cur_node, (xmlChar *)"y")));
217 }
218 return vector3df(atof((char *)xmlGetProp(cur_node, (xmlChar *)"x")),
219 -atof((char *)xmlGetProp(cur_node, (xmlChar *)"z")),
220 atof((char *)xmlGetProp(cur_node, (xmlChar *)"y")));
221 }
222 }
223 return vector3df(0, 0, 0);
224}
225
226} // end namespace simulator
227} // end namespace flair
228#endif // GL
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