/// Create places and their interconnections by taking place names, exit
/// data and descriptions from a text file.
/// Return a map of place names to places. File format for each place:
/// First line: place name (one word)
/// Second line: pairs of exit direction and neighbor place name
/// Remaining paragraph: place description, blank line terminated
public static Dictionary<string, Place> createPlaces(string fileName)
{
StreamReader reader = FIO.OpenReader(fileName);
// Map to return
Dictionary<string, Place> places = new Dictionary<string, Place> ();
// temporary Map to delay recording exits until all places exist
Dictionary<string, string> exitStrings =
new Dictionary<string, string> ();
while (!reader.EndOfStream) {
string name = reader.ReadLine ();
string exitPairs = reader.ReadLine ();
// You could also substitute your lab's ReadParagraph for the two
// lines below if you want to format each paragraph line yourself.
string description = TextUtil.LineWrap(reader);
reader.ReadLine(); // assume empty line after description
places [name] = new Place (description);
exitStrings [name] = exitPairs;
}
reader.Close ();
// need places before you can map exits
// go back and use exitPairs to map exits:
foreach (string name in places.Keys) {
Place place = places [name];
string[] parts = TextUtil.SplitWhite(exitStrings[name]);
for (int i = 0; i < parts.Length; i += 2) {
place.setExit (parts [i], places [parts [i + 1]]);
}
}
return places;
}
/// Create the game and initialise its internal map.
public Game()
{
places = Place.createPlaces("place_data.txt");
currentPlace = places["outside"];
quitter = new Quitter();
goer = new Goer(this);
Dictionary<string, string> helpDetails =
new Dictionary<string, string>();
helper = new Helper(helpDetails);
helpDetails["help"] = helper.Help();
helpDetails["go"] = goer.Help();
helpDetails["quit"] = quitter.Help();
}
/// Define an exit from this place.
/// Going to the exit in this direction
/// leads to neighbor place.
public void setExit(string direction, Place neighbor)
{
exits [direction] = neighbor;
}
public void SetCurrentPlace(Place place)
{
currentPlace = place;
}
/// Create the game and initialise its internal map.
public Game()
{
places = Place.createPlaces("place_data.txt");
CurrentPlace = places["outside"];
commandMapper = new CommandMapper(this);
}
public void SetCurrentPlace(Place place)
{
currentPlace = place;
}
/// Define an exit from this place.
/// Going to the exit in this direction
/// leads to neighbor place.
public void setExit(string direction, Place neighbor)
{
exits [direction] = neighbor;
}
