Update README with new example code

README.md

@@ -36,14 +36,15 @@ And, when running from a terminal,
 #
 # Game of Thai 21 example
 #
-# decription: Twenty one flags are placed on a beach. Each player takes a turn
+# Description: Twenty one flags are placed on a beach. Each player takes a turn
 # removing between 1 and 3 flags. The player that removes the last remaining flag wins.
 #
-# this game was introduced by an episode of Survivor: http://survivor-org.wikia.com/wiki/21_Flags
+# This game was introduced by an episode of Survivor: http://survivor-org.wikia.com/wiki/21_Flags
 #
 
 import strutils
 import turn_based_game
+import tables
 
 #
 # 1. define our game object
@@ -57,20 +58,20 @@ type
 # 2. add our rules (methods)
 #
 
-method setup*(self: GameOfThai21, players: seq[GenericPlayer]) =
+method setup*(self: GameOfThai21, players: seq[Player]) =
  self.default_setup(players)
  self.pile = 21
 
-method possible_moves(self: GameOfThai21): seq[string] =
- var limit = 2
- if self.pile < 3:
- limit = self.pile - 1
- @["1", "2", "3"][0..limit]
+method possible_moves(self: GameOfThai21): OrderedTable[string, string] =
+ if self.pile==1:
+ return {"1": "Take One"}.toOrderedTable
+ elif self.pile==2:
+ return {"1": "Take One", "2": "Take Two"}.toOrderedTable
+ return {"1": "Take One", "2": "Take Two", "3": "Take Three"}.toOrderedTable
 
 method make_move(self: GameOfThai21, move: string): string =
  var count = move.parseInt()
  self.pile -= count # remove bones.
- self.determine_winner()
  return "$# flags removed.".format([count])
 
 method determine_winner(self: GameOfThai21) =
@@ -80,6 +81,10 @@ method determine_winner(self: GameOfThai21) =
  self.winner_player_number = self.current_player_number
  return
 
+# the following method is not _required_, but makes it nicer to read
+method status(self: GameOfThai21): string =
+ "$# flags available.".format([self.pile])
+
 #
 # 3. invoke the new game object
 #

examples/thai21.nim

@@ -1,10 +1,10 @@
 #
 # Game of Thai 21 example
 #
-# description: Twenty one flags are placed on a beach. Each player takes a turn
+# Description: Twenty one flags are placed on a beach. Each player takes a turn
 # removing between 1 and 3 flags. The player that removes the last remaining flag wins.
 #
-# this game was introduced by an episode of Survivor: http://survivor-org.wikia.com/wiki/21_Flags
+# This game was introduced by an episode of Survivor: http://survivor-org.wikia.com/wiki/21_Flags
 #
 
 import strutils
@@ -27,13 +27,6 @@ method setup*(self: GameOfThai21, players: seq[Player]) =
  self.default_setup(players)
  self.pile = 21
 
-# method possible_moves(self: GameOfThai21): seq[string] =
-# if self.pile==1:
-# return @["1"]
-# elif self.pile==2:
-# return @["1", "2"]
-# return @["1", "2", "3"]
-
 method possible_moves(self: GameOfThai21): OrderedTable[string, string] =
  if self.pile==1:
  return {"1": "Take One"}.toOrderedTable
@@ -53,6 +46,7 @@ method determine_winner(self: GameOfThai21) =
  self.winner_player_number = self.current_player_number
  return
 
+# the following method is not _required_, but makes it nicer to read
 method status(self: GameOfThai21): string =
  "$# flags available.".format([self.pile])