bool load_scene( Scene* scene, const char* filename )
{
TiXmlDocument doc( filename );
const TiXmlElement* root = 0;
const TiXmlElement* elem = 0;
MaterialMap materials;
MeshMap meshes;
TriVertMap triverts;
assert( scene );
// load the document
if ( !doc.LoadFile() ) {
std::cout << "ERROR, " << doc.ErrorRow() << ":" << doc.ErrorCol() << "; "
<< "parse error: " << doc.ErrorDesc() << "\n";
return false;
}
// check for root element
root = doc.RootElement();
if ( !root ) {
std::cout << "No root element.\n";
return false;
}
// reset the scene
scene->reset();
try {
// parse the camera
elem = get_unique_child( root, true, STR_CAMERA );
parse_camera( elem, &scene->camera );
// parse background color
parse_elem( root, true, STR_BACKGROUND, &scene->background_color );
// parse refractive index
parse_elem( root, true, STR_REFRACT, &scene->refractive_index );
// parse ambient light
parse_elem( root, false, STR_AMLIGHT, &scene->ambient_light );
// parse the lights
elem = root->FirstChildElement( STR_PLIGHT );
while ( elem ) {
PointLight pl;
parse_point_light( elem, &pl );
scene->add_light( pl );
elem = elem->NextSiblingElement( STR_PLIGHT );
}
// parse the materials
elem = root->FirstChildElement( STR_MATERIAL );
while ( elem ) {
Material* mat = new Material();
check_mem( mat );
scene->add_material( mat );
const char* name = parse_material( elem, mat );
assert( name );
// place each material in map by it's name, so we can associate geometries
// with them when loading geometries
// check for repeat name
if ( !materials.insert( std::make_pair( name, mat ) ).second ) {
print_error_header( elem );
std::cout << "Material '" << name << "' multiply defined.\n";
throw std::exception();
}
elem = elem->NextSiblingElement( STR_MATERIAL );
}
// parse the meshes
elem = root->FirstChildElement( STR_MESH );
while ( elem ) {
Mesh* mesh = new Mesh();
check_mem( mesh );
scene->add_mesh( mesh );
const char* name = parse_mesh( elem, mesh );
assert( name );
// place each mesh in map by it's name, so we can associate geometries
// with them when loading geometries
if ( !meshes.insert( std::make_pair( name, mesh ) ).second ) {
print_error_header( elem );
std::cout << "Mesh '" << name << "' multiply defined.\n";
throw std::exception();
}
elem = elem->NextSiblingElement( STR_MESH );
}
// parse vertices (used by triangles)
elem = root->FirstChildElement( STR_VERTEX );
while ( elem ) {
Triangle::Vertex v;
const char* name = parse_triangle_vertex( materials, elem, &v );
assert( name );
// place each vertex in map by it's name, so we can associate triangles
// with them when loading geometries
if ( !triverts.insert( std::make_pair( name, v ) ).second ) {
print_error_header( elem );
std::cout << "Triangle vertex '" << name << "' multiply defined.\n";
throw std::exception();
}
elem = elem->NextSiblingElement( STR_VERTEX );
}
// parse the geometries
// spheres
elem = root->FirstChildElement( STR_SPHERE );
while ( elem ) {
Sphere* geom = new Sphere();
check_mem( geom );
scene->add_geometry( geom );
parse_geom_sphere( materials, elem, geom );
elem = elem->NextSiblingElement( STR_SPHERE );
}
// triangles
elem = root->FirstChildElement( STR_TRIANGLE );
while ( elem ) {
Triangle* geom = new Triangle();
check_mem( geom );
scene->add_geometry( geom );
parse_geom_triangle( materials, triverts, elem, geom );
elem = elem->NextSiblingElement( STR_TRIANGLE );
}
// models
elem = root->FirstChildElement( STR_MODEL );
while ( elem ) {
Model* geom = new Model();
check_mem( geom );
scene->add_geometry( geom );
parse_geom_model( materials, meshes, elem, geom );
elem = elem->NextSiblingElement( STR_MODEL );
}
// TODO add you own geometries here
} catch ( std::bad_alloc const& ) {
std::cout << "Out of memory error while loading scene\n.";
scene->reset();
return false;
} catch ( ... ) {
scene->reset();
return false;
}
return true;
}
int parse_data_module( DATAModule *module ) {
int data_count;
bool fatalError = TRUE; // if true, catch leads to exit(-1)
try {
data_count = module->datas_count;
for ( int i = 0; i < module->datas_count; i++ ) {
DataContext ctx; data_context = &ctx;
const char *tagName = module->datas[i]->tag->image;
const int tagId = find_tag( tagName );
if ( DATA_VERBOSE > 4 ) {
printf("tagName: %s tagId: %d\n\r", tagName, tagId );
}
switch ( tagId ) {
case TAG_Prereq: parse_prerequisite( module->datas[i] ); break;
case TAG_BrewFormula:
create_brew_formula_table( module->datas_count );
parse_brew_formula( module->datas[i] );
break;
case TAG_Ban: parse_ban( module->datas[i] ); break;
case TAG_Command:
create_command_table( module->datas_count );
parse_command( module->datas[i] );
break;
case TAG_Unique: parse_unique( module->datas[i] ); break;
case TAG_Disable: parse_disabled( module->datas[i] ); break;
case TAG_Material:
create_material_table( module->datas_count );
parse_material( module->datas[i] );
break;
case TAG_Liquid:
create_liquid_table( module->datas_count );
parse_liquid( module->datas[i] );
break;
case TAG_God:
create_god_table( module->datas_count );
parse_god( module->datas[i] );
break;
case TAG_Clan: parse_clan( module->datas[i] ); break;
case TAG_Faction:
create_faction_table( module->datas_count, module );
parse_faction( module->datas[i] );
break;
case TAG_Race:
create_races_table( module->datas_count );
parse_race( module->datas[i] );
break;
case TAG_PCRace:
create_pcraces_table( module->datas_count );
parse_pcrace( module->datas[i] );
break;
case TAG_Sphere:
create_spheres_table( module->datas_count );
parse_sphere( module->datas[i] );
break;
case TAG_Group:
create_groups_table( module->datas_count );
parse_groups( module->datas[i] );
break;
case TAG_Ability: parse_abilities( module->datas[i] ); break;
case TAG_Class:
create_classes_table( module->datas_count );
parse_classes( module->datas[i] );
break;
case TAG_Player:
fatalError = FALSE;
parse_player( module->datas[i] );
fatalError = TRUE;
break;
case TAG_Area: parse_area( module->datas[i] ); break;
case TAG_Config:
if ( parse_config( module->datas[i] ) ) // once we have found the right config: skip others
return data_count;
break;
case TAG_AreaState: parse_area_state( module->datas[i] ); break;
case TAG_Time: parse_time( module->datas[i] ); break;
case TAG_Hometown:
create_hometown_table( module->datas_count );
parse_hometown( module->datas[i] );
break;
case TAG_School:
create_school_table( module->datas_count );
parse_school( module->datas[i] );
break;
case TAG_Super_Race:
create_super_race_table( module->datas_count );
parse_super_race( module->datas[i] );
break;
default: p_error("Invalid Tag: %s", tagName ); break;
}
}
} catch (ScriptException e) {
bug("Error while parsing datas. %s", e.msg );
if ( fatalError ) {
bug("FATAL error. Bye!");
exit(-1);
}
else
return -1;
}
dump_GC_info();
return data_count;
}
