private GameReply RunParser(string command)
{
var reply = new GameReply();
// Run the natural language parser.
var parsedCommand = Parser.ParseCommand(command);
_commandQueue.AddCommand(parsedCommand);
reply.State = GameStateEnum.Playing;
reply.Reply = TextSubstitute.PerformSubstitution(CurrentRoom.ProcessCommand(parsedCommand));
return(reply);
}
/// <summary>
/// The ProcessCommand method is the primary way in which the player interacts with the game. When they type a command
/// into the game, it is fed into this method which executes the parser to interpret what has been types which
/// then results in a GameReply object that contains the broken down command ready for the game logic to use.
/// </summary>
/// <param name="command">The typed in command from the player.</param>
/// <returns>The GameReply object that contains the interpreted command ready for the game to use.</returns>
public GameReply ProcessCommand(string command)
{
var reply = new GameReply();
if (!string.IsNullOrEmpty(command))
{
// Check for game specific override commands
reply = CheckGameSpecificCommandOverrides(command);
if (string.IsNullOrEmpty(reply.Reply))
{
reply = RunParser(command);
}
return(reply);
}
reply.State = GameStateEnum.Playing;
reply.Reply = string.Empty;
return(reply);
}
private static GameReply CheckGameSpecificCommandOverrides(string command)
{
var reply = new GameReply();
var lowerCase = command.ToLower();
switch (lowerCase)
{
case "clear":
case "cls":
case "clearscreen":
case "clear screen":
{
reply.State = GameStateEnum.Clearscreen;
reply.Reply = lowerCase;
return(reply);
}
case "quit":
case "exit":
case "run away":
case "kill yourself":
case "kill your self":
{
reply.State = GameStateEnum.Exit;
reply.Reply = lowerCase;
return(reply);
}
case "show score":
case "score":
case "view score":
case "see score":
case "what is my score":
{
reply.State = GameStateEnum.Score;
reply.Reply = lowerCase;
return(reply);
}
case "inventory":
case "view inventory":
{
reply.State = GameStateEnum.Inventory;
reply.Reply = lowerCase;
return(reply);
}
case "help":
case "help me":
case "instructions":
case "read manual":
case "read the manual":
case "manual":
case "man":
{
reply.State = GameStateEnum.Help;
reply.Reply = lowerCase;
return(reply);
}
case "locations":
case "visited":
case "visited locations":
{
reply.State = GameStateEnum.Visited;
reply.Reply = lowerCase;
return(reply);
}
}
reply.State = GameStateEnum.Playing;
reply.Reply = "";
return(reply);
}