public void RunGameLoop()
{
List <string> verbsRequiringObjects = new List <string>()
{
"go", "read", "drop", "take", "throw"
};
while (true)
{
Console.Write("\nWhat do you want to do? ");
string response = Console.ReadLine().ToLower();
Console.WriteLine();
// Split the user's input into a verb and another word
string[] words = response.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (words.Length > 2)
{
Console.WriteLine("The most I can cope with is two words at a time!");
continue;
}
string theVerb = words[0];
string theObject = "";
bool verbNeedsAnObject = verbsRequiringObjects.Contains(theVerb);
if (verbNeedsAnObject && words.Length == 1)
{
Console.WriteLine("{0} what or where?", theVerb);
continue;
}
if (!verbNeedsAnObject && words.Length == 2)
{
Console.WriteLine("I don't know how to do that.");
continue;
}
if (verbNeedsAnObject)
{
theObject = words[1];
}
try
{
switch (theVerb)
{
case "die":
case "exit":
case "quit": return; // leave the game.
case "go":
theFSM.DoTransition(theObject);
describeSituation();
break;
case "help":
Console.WriteLine("Valid verbs are go, drop, take, look, help, throw, read, quit, ");
Console.WriteLine("and perhaps some others. Some verbs must be followed by another");
Console.WriteLine("object word to make sense, e.g. 'go west', or 'read book'.");
break;
case "drop":
thePlayer.RemoveThing(theObject);
theFSM.CurrentState.AddThing(theObject);
Console.WriteLine("OK.");
break;
case "take":
theFSM.CurrentState.RemoveThing(theObject);
thePlayer.AddThing(theObject);
Console.WriteLine("OK.");
break;
case "look":
describeSituation();
break;
case "read":
if (theObject == "book" || theObject == "ipad")
{
if (thePlayer.HasThing(theObject) || theFSM.CurrentState.HasThing(theObject))
{
if (theObject == "book")
{
Console.WriteLine("The title is 'Think Sharply with C#'. It looks boring!");
}
else
{
Console.WriteLine("The iPad is locked, and you don't know the PIN code.");
}
}
else
{
Console.WriteLine("There is no {0} here to read.", theObject);
}
}
else
{
Console.WriteLine("Nobody can read a {0}.", theObject);
}
break;
default:
Console.WriteLine("Huh?");
break;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
