void
Game::LoadMap( const std::string & filename )
{
XMLDocument doc;
doc.LoadFile(filename.c_str());
if ( doc.ErrorID() != XML_NO_ERROR )
{
ostringstream ss;
ss << "Loadfile:" << g_TinyXmlErrors[doc.ErrorID()] << " " << doc.GetErrorStr1() << " " << doc.GetErrorStr2();
throw XmlParsingException(ss.str());
}
// Load rooms
XMLElement *pElem = doc.FirstChildElement( "Room");
while( pElem != NULL )
{
g_Log << "loading..." << pElem->Attribute("id");
Room *pRoom = NULL;
// Custom rooms
if ( pElem->Attribute("class"))
{
std::string classID = pElem->Attribute("class");
pRoom = RoomFactory::Create(classID);
}
else
{
pRoom = new Room();
}
pRoom->Load( *pElem );
if ( m_Rooms.find(pRoom->GetId()) != m_Rooms.end())
{
throw DuplicateRoomIdException(pRoom->GetId());
}
m_Rooms[pRoom->GetId()] = pRoom;
pElem = pElem->NextSiblingElement("Room");
}
// Load transitions
pElem = doc.FirstChildElement( "Transitions");
if ( pElem != NULL )
{
pElem = pElem->FirstChildElement("Transition");
while( pElem != NULL )
{
const char * from = pElem->Attribute("from");
const char * to = pElem->Attribute("to");
const char * direction = pElem->Attribute("direction");
const char * oneway = pElem->Attribute("oneway");
if ( direction == NULL ) throw AttributeMissingException("Direction is missing from transition");
if ( from == NULL ) throw AttributeMissingException("From attribute is missing from transition!");
if ( to == NULL ) throw AttributeMissingException("To attribute is missing from transition!");
// check is from a proper id
if ( m_Rooms.find(from) == m_Rooms.end() )
{
ostringstream ss;
ss << from << " is not a proper room id";
throw InvalidAttributeException(ss.str());
}
// check is to a proper id
if ( m_Rooms.find(to) == m_Rooms.end() )
{
ostringstream ss;
ss << to << " is not a proper room id";
throw InvalidAttributeException(ss.str());
}
string tmp = direction;
transform(tmp.begin(),tmp.end(), tmp.begin(), [] (char c){ return tolower(c);});
Direction dir = kNumDirs;
if ( tmp == "east" ) dir = East;
else if ( tmp == "north" ) dir = North;
else if ( tmp == "south" ) dir = South;
else if ( tmp == "west" ) dir = West;
else throw InvalidAttributeException("Direction is not properly set");
m_Rooms[from]->SetNextRoom(dir, m_Rooms[to]);
if ( !oneway )
{
m_Rooms[to]->SetNextRoom(g_Opposite[dir], m_Rooms[from]);
}
pElem = pElem->NextSiblingElement("Transition");
}
}
else
{
throw ElementMissingException("Transitions is missing!");
}
// set current room
pElem = doc.FirstChildElement("OnStart");
if ( pElem == NULL ) throw ElementMissingException("No OnStart defined");
pElem = pElem->FirstChildElement("CurrentRoom");
if ( pElem == NULL )
{
cout << "No current room set, problems might arise\n";
}
else
{
const char *szRoomId = pElem->Attribute("id");
if ( szRoomId == NULL) throw InvalidAttributeException("Bad format CurrentRoom");
string tmp = szRoomId;
if ( m_Rooms.find(tmp) == m_Rooms.end() )
{
ostringstream ss;
ss << "No room " << tmp << " found!";
throw ElementMissingException(ss.str());
}
SetCurrentRoom(m_Rooms[tmp]);
}
pElem = doc.FirstChildElement("OnStart");
pElem = pElem->FirstChildElement("Story");
if ( pElem == NULL ) throw ElementMissingException("Story");
m_Story = (pElem->GetText() == NULL) ? "" : pElem->GetText();
pElem = doc.FirstChildElement("Player");
if ( !pElem ) throw new ElementMissingException("Player");
m_Player.Load(*pElem);
}
void
Game::Save( const std::string & filename )
{
FILE *file = fopen(filename.c_str(), "w+");
if ( !file )
{
stringstream ss;
ss << "Cannot open file '" << filename << "' for writing";
throw runtime_error( ss.str() );
}
XMLPrinter printer(file);
printer.PushHeader(true,true);
// store rooms with properties and items
for(auto elem : m_Rooms )
{
elem.second->Save(printer);
}
// store transitions
map<pair<Direction,Room *>, Room * > savedTransitions;
printer.OpenElement("Transitions");
for(auto elem : m_Rooms )
{
Room * from = elem.second;
for( int dir = (int)North; dir<kNumDirs; dir++)
{
Direction d = static_cast<Direction>(dir);
Room * to = from->GetNextRoom(d);
if ( to != NULL )
{
// if two-way
if( from == to->GetNextRoom(g_Opposite[d]))
{
// store our transition
savedTransitions[make_pair<>(d,from)] = to;
// remove link between rooms
from->SetNextRoom(d,NULL);
to->SetNextRoom(g_Opposite[d], NULL);
printer.OpenElement("Transition");
printer.PushAttribute("from", from->GetId().c_str());
printer.PushAttribute("to", to->GetId().c_str());
printer.PushAttribute("direction", g_DirStr[d].c_str());
printer.CloseElement();
}
else // one-way
{
printer.OpenElement("Transition");
printer.PushAttribute("from", from->GetId().c_str());
printer.PushAttribute("to", to->GetId().c_str());
printer.PushAttribute("direction", g_DirStr[d].c_str());
printer.PushAttribute("oneway", "true");
printer.CloseElement();
}
}
}
}
printer.CloseElement();
// restore links between actual rooms
for( auto e : savedTransitions )
{
// for readabilty
Room * from = e.first.second;
Room * to = e.second;
Direction dir = e.first.first;
g_Log << "adding transition " << from->GetId() << " <-> " << to->GetId() << " via " << g_DirStr[dir] << "\n";
from->SetNextRoom( dir, to );
to->SetNextRoom( g_Opposite[dir], from );
}
// Store player's current location.
printer.OpenElement("OnStart");
printer.OpenElement("CurrentRoom");
printer.PushAttribute("id", GetCurrentRoom()->GetId().c_str());
printer.CloseElement();
printer.OpenElement("Story");
printer.PushText(m_Story.c_str());
printer.CloseElement();
printer.CloseElement();
m_Player.Save(printer);
}
void Configuration::ReadDatabase() {
_professors.clear();
_studentGroups.clear();
_courses.clear();
_rooms.clear();
_courseClasses.clear();
mapid.clear();
PGconn *conn;
PGresult *res, *resgr;
int rec_count, rec_countgr;
int row,row1,col;
conn = PQconnectdb("dbname=gaschedule_development host=localhost user=alex password=alex");
if (PQstatus(conn) == CONNECTION_BAD)
{ puts("We were unable to connect to the database");}
res = PQexec(conn,"select * from rooms order by id");
if (PQresultStatus(res) != PGRES_TUPLES_OK) {puts("We did not get any data!");}
rec_count = PQntuples(res);
for (row=0; row<rec_count; row++) {
int id = atoi(PQgetvalue(res, row , 0));
char* name = PQgetvalue(res, row , 1) ;
bool lab = !strcmp ( PQgetvalue(res, row , 2), "t" );
int size = atoi(PQgetvalue(res, row , 3));
Room* r = new Room(name, lab, size );
int a = row;
a = a + 1;
mapid.insert(pair <int,int> (a,id));
if( r ) {
_rooms.insert( pair<int, Room*>( r->GetId(), r ) );
}
}
PQclear(res);
res = PQexec(conn, "select * from courses order by id");
if (PQresultStatus(res) != PGRES_TUPLES_OK) { puts("We did not get any data!");}
rec_count = PQntuples(res);
for (row=0; row<rec_count; row++) {
int id = atoi(PQgetvalue(res, row , 0));
char* name = PQgetvalue(res, row , 1) ;
Course* r = new Course(id, name );
if( r )
_courses.insert( pair<int, Course*>( r->GetId(), r ) );
}
PQclear(res);
res = PQexec(conn,"select * from professors order by id");
if (PQresultStatus(res) != PGRES_TUPLES_OK) { puts("We did not get any data!");}
rec_count = PQntuples(res);
for (row=0; row<rec_count; row++) {
int id = atoi(PQgetvalue(res, row , 0));
char* name = PQgetvalue(res, row , 1) ;
Professor* r = new Professor(id, name );
if( r )
_professors.insert( pair<int, Professor*>( r->GetId(), r ) );
}
PQclear(res);
res = PQexec(conn,"select * from groups order by id");
if (PQresultStatus(res) != PGRES_TUPLES_OK) { puts("We did not get any data!");}
rec_count = PQntuples(res);
for (row=0; row<rec_count; row++) {
int id = atoi(PQgetvalue(res, row , 0));
char* name = PQgetvalue(res, row , 1) ;
int size = atoi(PQgetvalue(res, row , 2));
StudentsGroup* r = new StudentsGroup(id, name , size );
if( r ) {
_studentGroups.insert( pair<int, StudentsGroup*>( r->GetId(), r ) );
}
}
PQclear(res);
list<StudentsGroup*> groups;
res = PQexec(conn, "select * from clas order by id");
if (PQresultStatus(res) != PGRES_TUPLES_OK) {puts("We did not get any data!");}
rec_count = PQntuples(res);
resgr = PQexec(conn,
"select clas.id, cla_groups.group_id from cla_groups INNER JOIN clas ON cla_groups.cla_id = clas.id");
if (PQresultStatus(resgr) != PGRES_TUPLES_OK) {puts("We did not get any data!"); }
rec_countgr = PQntuples(resgr);
for (row=0; row<rec_count; row++) {
int claid = atoi(PQgetvalue(res, row , 0));
int pid = atoi(PQgetvalue(res, row , 1));
int cid = atoi(PQgetvalue(res, row , 2));
int dur = atoi(PQgetvalue(res, row , 4));
bool lab = !strcmp ( PQgetvalue(res, row , 5), "t" );
Professor* p = GetProfessorById( pid );
Course* c = GetCourseById( cid );
for (row1=0; row1<rec_countgr; row1++) {
if (claid ==atoi(PQgetvalue(resgr, row1 , 0))) {
StudentsGroup* g = GetStudentsGroupById( atoi(PQgetvalue(resgr, row1 , 1)));
if( g ) {
groups.push_back( g );
}
}
}
CourseClass* cc = new CourseClass( p, c, groups, lab, dur );
if( cc )
_courseClasses.push_back( cc );
groups.clear();
}
PQclear(resgr);
PQclear(res);
PQfinish(conn);
_isEmpty = false;
}