source: flair-src/trunk/lib/FlairSimulator/src/Parser.cpp@ 10

Last change on this file since 10 was 10, checked in by Sanahuja Guillaume, 8 years ago

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