source: flair-src/trunk/lib/FlairSimulator/src/Parser.cpp@ 8

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

simulator
File size: 7.4 KB
Line 
1// created: 2013/08/02
2// filename: Parser.cpp
3//
4// author: César Richard
5// Copyright Heudiasyc UMR UTC/CNRS 7253
6//
7// version: $Id: $
8//
9// purpose: classe chargeant un XML decrivant une map
10//
11/*********************************************************************/
12#ifdef GL
13
14#include "Parser.h"
15#include "Simulator.h"
16#include "GenericObject.h"
17#include <vector3d.h>
18#include <irrlicht.h>
19#include "GenericObject.h"
20
21
22using namespace irr;
23using namespace irr::core;
24using namespace irr::scene;
25using namespace irr::video;
26using namespace flair::core;
27using namespace flair::simulator;
28
29//todo: getMeshVect doit plutot donner point3D et euler
30//adaptr le xml et la dtd
31
32namespace flair
33{
34namespace simulator
35{
36Parser::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)
37{
38 this->media_path = media_path;
39 this->parent = parent;
40 xmlNode *root_element = NULL;
41 doc = xmlReadFile(xmlFile.c_str(), NULL, 0);
42 xmlDtdPtr dtd = NULL;
43 dtd = xmlParseDTD(NULL, (const xmlChar *)(media_path.append("/scene.dtd").c_str()));
44
45 if (dtd == NULL)
46 {
47 //xmlGenericError(xmlGenericErrorContext,
48 Err("Could not parse DTD scene.dtd\n");
49 }
50 else
51 {
52 xmlValidCtxt cvp;
53 cvp.userData = (void *) stderr;
54 cvp.error = (xmlValidityErrorFunc) fprintf;
55 cvp.warning = (xmlValidityWarningFunc) fprintf;
56 if (!xmlValidateDtd(&cvp, doc, dtd))
57 {
58 //xmlGenericError(xmlGenericErrorContext,
59 Err("Document does not validate against scene.dtd\n");
60 }
61 }
62
63 if (doc == NULL)
64 {
65 Err("error: could not parse file %s\n", xmlFile.c_str());
66 }
67 else
68 {
69 /*
70 * Get the root element node
71 */
72 root_element = xmlDocGetRootElement(doc);
73 processElements(root_element);
74 }
75
76}
77
78Parser::~Parser()
79{
80 if(doc!=NULL)
81 {
82 /*
83 * free the document
84 */
85 xmlFreeDoc(doc);;
86 }
87 /*
88 *Free the global variables that may
89 *have been allocated by the parser.
90 */
91 xmlCleanupParser();
92}
93
94/* Recursive function that prints the XML structure */
95void Parser::processElements(xmlNode * a_node)
96{
97 xmlNode *cur_node = NULL;
98 for (cur_node = a_node; cur_node; cur_node = cur_node->next)
99 {
100 if(cur_node->type == XML_ELEMENT_NODE)
101 {
102 if(xmlStrEqual(cur_node->name, (xmlChar*) "params"))
103 {
104 processParams(cur_node->children);
105 }
106 else if(xmlStrEqual(cur_node->name, (xmlChar*) "objects"))
107 {
108 processObjects(cur_node->children);
109 }
110 else
111 {
112 processElements(cur_node->children);
113 }
114 }
115 }
116}
117
118void Parser::processObjects(xmlNode * a_node)
119{
120 FILE* fp;
121 std::string fileName;
122 xmlNode *cur_node = NULL;
123
124 const IGeometryCreator *geo;
125
126 geo=getGui()->getSceneManager()->getGeometryCreator();
127
128 for (cur_node = a_node; cur_node; cur_node = cur_node->next)
129 {
130 if(xmlStrEqual(cur_node->name, (xmlChar*) "mesh"))
131 {
132 fileName=this->media_path;
133 fp = NULL;
134 fp = fopen( fileName.append((char*)xmlGetProp(cur_node,(xmlChar*)"model")).c_str(), "rb" );
135 if(fp!=NULL){
136 GenericObject* object = new GenericObject(parent,"Object", getSceneManager());
137 object->setMesh(getGui()->getMesh((char*)xmlGetProp(cur_node,(xmlChar*)"model")));
138 object->setPosition(getMeshVect(cur_node->children,(xmlChar*)"position"));
139 object->setRotation(getMeshVect(cur_node->children,(xmlChar*)"rotation"));
140 object->setScale(getMeshVect(cur_node->children,(xmlChar*)"scale"));
141 object->render();
142 }else{
143 Err("FATAL ERROR : File %s doesn't exist !\r\n",(char*)xmlGetProp(cur_node,(xmlChar*)"model"));
144 }
145 }else if(xmlStrEqual(cur_node->name, (xmlChar*) "cylinder")){
146 GenericObject* object = new GenericObject(parent,"Object", getSceneManager());
147 object->setMesh(geo->createCylinderMesh(ToIrrlichtScale(atof((char*)xmlGetProp(cur_node,(xmlChar*)"radius"))),
148 ToIrrlichtScale(atof((char*)xmlGetProp(cur_node,(xmlChar*)"length"))),
149 atof((char*)xmlGetProp(cur_node,(xmlChar*)"tesselation")),
150 SColor(100, 255, 100, 100)));
151 object->setPosition(getMeshVect(cur_node->children,(xmlChar*)"position"));
152 object->setRotation(getMeshVect(cur_node->children,(xmlChar*)"rotation"));
153 object->setScale(getMeshVect(cur_node->children,(xmlChar*)"scale"));
154 //object->setMaterialTexture(0,getTexture("/home/apeiron/igep/uav_dev_svn/trunk/media/nskinbl.jpg"));
155 object->setMaterialType( video::EMT_SOLID );
156 object->render();
157 }else if(xmlStrEqual(cur_node->name, (xmlChar*) "eight")){
158 GenericObject* object = new GenericObject(parent,"Object", getSceneManager());
159 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")))));
160 object->setPosition(getMeshVect(cur_node->children,(xmlChar*)"position"));
161 object->setRotation(getMeshVect(cur_node->children,(xmlChar*)"rotation"));
162 object->setScale(getMeshVect(cur_node->children,(xmlChar*)"scale"));
163 object->setMaterialType( video::EMT_TRANSPARENT_ALPHA_CHANNEL );
164 //object->getMaterial(0).Textures[0] = getTexture("/home/apeiron/igep/uav_dev_svn/trunk/media/nskinbl.jpg");
165 object->setMaterialFlag(EMF_LIGHTING, false);
166 object->render();
167 }
168 }
169}
170
171void Parser::processParams(xmlNode * a_node)
172{
173
174 xmlNode *cur_node = NULL;
175 for (cur_node = a_node; cur_node; cur_node = cur_node->next)
176 {
177 if(xmlStrEqual(cur_node->name, (xmlChar*) "archive"))
178 {
179 std::string file=media_path + "/" + (char*)xmlGetProp(cur_node,(xmlChar*)"path");
180 getDevice()->getFileSystem()->addFileArchive(file.c_str());
181 }
182 else if(xmlStrEqual(cur_node->name, (xmlChar*) "mesh"))
183 {
184 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));
185
186 }
187 }
188}
189//todo rendre un vector3D framework
190//retirer irr::core::vector3df ToIrrlichtCoordinates(irr::core::vector3df vect);
191vector3df Parser::getMeshVect(xmlNode * mesh_node, xmlChar * param)
192{
193 xmlNode *cur_node = NULL;
194 for (cur_node = mesh_node; cur_node; cur_node = cur_node->next)
195 {
196 if(xmlStrEqual(cur_node->name, param)){
197 return vector3df(atof((char*)xmlGetProp(cur_node,(xmlChar*)"x")),atof((char*)xmlGetProp(cur_node,(xmlChar*)"y")),atof((char*)xmlGetProp(cur_node,(xmlChar*)"z")));
198 }
199 }
200 return vector3df(0,0,0);
201}
202
203vector3df Parser::getSceneVect(xmlNode * mesh_node, xmlChar * param, bool isScale)
204{
205 xmlNode *cur_node = NULL;
206 for (cur_node = mesh_node; cur_node; cur_node = cur_node->next)
207 {
208 if(xmlStrEqual(cur_node->name, param)){
209 if(isScale){
210 return vector3df(atof((char*)xmlGetProp(cur_node,(xmlChar*)"x")),atof((char*)xmlGetProp(cur_node,(xmlChar*)"z")),atof((char*)xmlGetProp(cur_node,(xmlChar*)"y")));
211 }
212 return vector3df(atof((char*)xmlGetProp(cur_node,(xmlChar*)"x")),-atof((char*)xmlGetProp(cur_node,(xmlChar*)"z")),atof((char*)xmlGetProp(cur_node,(xmlChar*)"y")));
213 }
214 }
215 return vector3df(0,0,0);
216}
217
218} // end namespace simulator
219} // end namespace flair
220#endif //GL
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