public void execute(Player p, Item origin, Item target)
{
if (p.inventory.Contains(origin))
throw new InvalidDataException("You already have this item in your inventory.");
p.addItem(origin);
p.room.removeItem(origin);
}
public World(string file)
{
player = new Player();
List<Node> nodes = WorldParser.parseFile(file);
worldName = nodes[0].name;
rooms = WorldBuilder.build(player, nodes[0].children);
Command look = s =>
{
if (s.StartsWith("at ", StringComparison.OrdinalIgnoreCase))
player.commands["examine"](s.Substring(3).Trim());
else if (DirectionUtils.isDirection(s))
Console.WriteLine(player.room.getWall(s).look());
else
Console.WriteLine(player.room.look());
};
Command move = s =>
{
Direction d;
try
{
d = DirectionUtils.parse(s);
}
catch
{
Console.WriteLine("I don't think that is a valid direction :P");
return;
}
Wall wall = player.room.getWall(d);
if (wall == null || wall.door == null || !wall.door.visible)
Console.WriteLine("You have nowhere to go.");
else if (wall.door.locked)
Console.WriteLine("This door is locked. Find a key.");
else
{
player.room = wall.door.room;
look("");
}
};
Command take = s =>
{
if (s == "")
{
Console.WriteLine("Take what?");
return;
}
Item i = player.room.getItem(s);
if (i == null)
{
if (player.getItem(s) != null)
Console.WriteLine("This item is already equipped.");
else
Console.WriteLine("You can't see such an item.");
return;
}
if (!i.visible)
{
Console.WriteLine("You can't see such an item.");
return;
}
if (!i.takeable)
{
Console.WriteLine("Sorry you can't take this.");
return;
}
player.addItem(i);
player.room.removeItem(i);
Console.WriteLine(char.ToUpper(i.name[0]) + i.name.Substring(1) + " taken.");
};
Command examine = s =>
{
if (s == "")
{
Console.WriteLine("Examine what?");
return;
}
Item i = player.getItem(s);
if (i == null)
{
i = player.room.getItem(s);
if (i == null || !i.visible)
{
Console.WriteLine("You can't see such an item.");
return;
}
}
if (!i.visible)
{
Console.WriteLine("You can't see such an item.");
return;
}
Command c = i.getCommand("examine");
if (c != null)
c("");
Console.WriteLine(i.examine());
};
Command inventory = s =>
{
if (player.inventory.Count == 0)
{
Console.WriteLine("Your inventory is empty.");
return;
}
Console.WriteLine("Your inventory:");
foreach (Item i in player.inventory)
Console.WriteLine(" - " + i.name);
};
Command use = s =>
{
string[] ps = s.Split(new string[] { " on " }, StringSplitOptions.RemoveEmptyEntries);
if (ps.Length == 0)
{
Console.WriteLine("Use what?");
return;
}
Item i = player.getItem(ps[0].Trim());
if (i == null)
{
i = player.room.getItem(ps[0].Trim());
if (i == null || !i.visible)
{
Console.WriteLine("You can't see such an item.");
return;
}
if (!i.useIfNotEquipped)
{
Console.WriteLine("This item is not equipped.");
return;
}
}
if (!i.visible)
{
Console.WriteLine("You can't see such an item.");
return;
}
Command c = i.getCommand("use");
if (c == null)
{
Console.WriteLine("You can't use this item.");
return;
}
string p = "";
for (int a = 1; a < ps.Length; a++)
p += ps[a].Trim();
c(p);
};
Command help = s =>
{
foreach (string c in player.commands.Keys)
{
if (c == "?" || c == "help")
continue;
Console.WriteLine(c);
}
foreach (Item i in player.inventory)
{
foreach (string c in i.commands.Keys)
{
if (!player.commands.ContainsKey(c))
Console.WriteLine(c);
}
}
};
player.commands.Add("look", look);
player.commands.Add("move", move);
player.commands.Add("go", move);
player.commands.Add("take", take);
player.commands.Add("examine", examine);
player.commands.Add("inventory", inventory);
player.commands.Add("use", use);
player.commands.Add("help", help);
player.commands.Add("?", help);
}
