partial void InitGlobals(GameState state)
{
RegisterMethod(
state,
"Abs",
"AddToSet",
"ChoosePiece",
"Contains",
"Count",
"DebugBreak",
"DebugPrint",
"GetMatching",
"ForEach",
"IsEmpty",
"Lose",
"Match",
"Max",
"Min",
"NextPlayer",
"PieceAt",
"Place",
"RemovePiece",
"Win"
);
}
public object Call(GameState state, Context ctx, params object[] p)
{
var l = new List<object>();
l.Add(ctx);
l.AddRange(p);
return method.Invoke(null, l.ToArray());
}
/// <summary>
/// Clones an existing context, except for the associated game state
/// </summary>
/// <param name="oldContext"></param>
/// <param name="newState"></param>
protected Context(Context oldContext, GameState newState)
{
this.parent = oldContext.parent; // FIXME: only works if we don't save any contexts into state
this.Game = oldContext.Game;
this.GameState = newState;
this.vars = new Dictionary<string, object>(oldContext.vars); // TODO: make sure there are only value types
}
public static GameState PerformMove(Game game, GameState state, string fromString, string toString)
{
GameState newState;
if (fromString[0] == '#' && toString[0] == '#')
{
Coords from = ParseCoords(fromString.Substring(1));
Coords to = ParseCoords(toString.Substring(1));
if ((newState = game.TryMakeMove(state, from, to)) == null)
{
Console.WriteLine("Invalid move!");
return state;
}
return newState;
}
else if (toString[0] == '#')
{
Coords to = ParseCoords(toString.Substring(1));
Piece p = FindOffboardPiece(state, fromString);
if (p == null)
{
Console.WriteLine("No such piece offboard!");
return state;
}
else if ((newState = game.TryMakeMoveFromOffboard(state, p, to)) == null) {
Console.WriteLine("Invalid move!");
return state;
}
return newState;
}
else {
Console.WriteLine("Invalid or unsupported move!");
return state;
}
}
public object GetVariable(GameState state, string name)
{
if (name == "x" || name == "y" || name == "z")
{
Coords c = GetPosition(state, state.CurrentPlayer);
if (c == null) return 0;
if (name == "x") return c[0];
else if (name == "y") return c[1];
else if (name == "z") return c[2];
else return -1; // WTF?
}
else if (name == "Position")
{
return GetPosition(state, state.CurrentPlayer);
}
else if (name == "Owner")
{
return Owner;
}
else if (name == "Type")
{
return Type;
}
else
{
return null;
}
}
internal void RunAction(GameState state, Context ctx)
{
if (action != null)
{
action.Run(state, ctx);
}
}
private void RegisterMethod(GameState state, params string[] names)
{
foreach (var name in names)
{
state.GlobalContext.SetVariable(name, new PredefinedFunction(typeof(M).GetMethod(name)));
}
}
public static Piece FindOffboardPiece(GameState state, string type)
{
foreach (Piece p in state.CurrentPlayer.GetOffboard(state))
{
if (p.Type == type) return p;
}
return null;
}
public virtual object GetVariable(GameState state, string name)
{
object ret;
if (!vars.TryGetValue(name, out ret))
{
if (parent != null) return parent.GetVariable(state, name);
else return null;
}
return ret;
}
internal Coords GetPosition(GameState state, Player asker)
{
foreach (var kvp in Game.GetPieces(state, asker))
{
if (this == kvp.Value)
{
return kvp.Key;
}
}
return null; // Piece is not on the board
}
object ICallable.Call(GameState state, Context ctx, params object[] args)
{
if (argList.Length != args.Length) throw new InvalidGameException("Invalid parameter count!");
Context local = new Context(ctx);
for (int i = 0; i < argList.Length; i++)
{
local.SetVariable(argList[i], args[i]);
}
body.Run(state, local);
return local.GetVariable(state, "_Return");
}
public MultiParentContext(GameState g, params IReadContext[] parents)
: base(g)
{
this.parents = new IWriteContext[parents.Length];
for (int i = 0; i < parents.Length; i++)
{
var p = parents[i];
if (p is IWriteContext) this.parents[i] = (IWriteContext)p;
else { this.parents[i] = new ReadonlyContextWrapper(p); }
}
}
public override object GetVariable(GameState state, string name)
{
object ret = base.GetVariable(state, name);
if (ret != null) return ret;
foreach (var c in parents)
{
ret = c.GetVariable(state, name);
if (ret != null) return ret;
}
return null;
}
private GameState(GameState gs)
{
this.game = gs.game;
this.CurrentPlayerID = gs.CurrentPlayerID;
this.Board = new Dictionary<Coords, Piece>(gs.Board);
this.OverrideNextPlayer = gs.OverrideNextPlayer;
this.GlobalContext = (Game.GlobalContext)gs.GlobalContext.Clone(this);
foreach (var player in game.EnumeratePlayers())
{
offboard.Add(player, new HashSet<Piece>(gs.GetOffboard(player)));
}
}
public static void PrintBoard(Game game, GameState state)
{
Console.WriteLine("Board size: {0}", game.Size);
Console.WriteLine("Player Count: {0}", game.PlayerCount);
Console.WriteLine("Current player: {0}", state.CurrentPlayer);
Console.WriteLine();
Console.WriteLine("Onboard pieces:");
foreach (KeyValuePair<Coords, Piece> kvp in game.GetPieces(state))
{
Console.WriteLine(" {0} - {1}", kvp.Key, kvp.Value);
}
Console.WriteLine("Offboard pieces for current player:");
Console.WriteLine(" " + string.Join(", ", state.CurrentPlayer.GetOffboard(state)));
}
public object GetVariable(GameState state, string name)
{
switch (name)
{
case "label":
return Label;
case "from":
return Game.Transform(From, state.CurrentPlayer);
case "to":
return Game.Transform(To, state.CurrentPlayer);
default:
return null;
}
}
public bool Equals(GameState other)
{
// States are considered equal, if the same pieces are at the same position
if (Board.Count != other.Board.Count) return false;
foreach (var kvp in Board)
{
Piece value;
if (!other.Board.TryGetValue(kvp.Key, out value)) return false;
if (!value.Equals(kvp.Value)) return false;
}
// TODO: compare offboard pieces
return true;
}
object IReadContext.GetVariable(GameState state, string name)
{
switch (name)
{
case "Self":
return this;
default:
return null;
}
}
public object GetVariable(GameState state, string name)
{
return readContext.GetVariable(state, name);
}
public Coords GetPosition(GameState state)
{
return GetPosition(state, null);
}
public bool IsValidPlace(GameState state, Coords c)
{
if (c.IsPlaceHolder) throw new ArgumentOutOfRangeException("Non-placeholder coords needed.");
for (int i = 0; i < c.Dimension; i++)
{
if (c[i] < 1 || c[i] > Size[i]) return false;
}
return IsValidByRules(state, c);
}
private bool TenPredicate(GameState state, Coords coords)
{
return coords[1] == 10;
}
private Piece SelectPiece(GameState state, IEnumerable<Piece> pieces)
{
selectState = SelectState.Special;
this.mustSelectFrom = pieces;
offBoard.ClearHighlight();
gamePanel.ClearHighlight();
foreach (var p in mustSelectFrom)
{
offBoard.AddHighlight(p);
gamePanel.AddHighlight(p);
}
offBoard.InvalidateVisual();
gamePanel.InvalidateVisual();
selectionFrame = new DispatcherFrame();
Dispatcher.PushFrame(selectionFrame);
selectionFrame = null;
selectState = SelectState.From;
this.mustSelectFrom = null;
return selectedPiece;
}
private void MakeMove()
{
if (fromOffboard != null && toCoord != null)
{
// From offboard to board
var newGameState = game.TryMakeMoveFromOffboard(gameState, FromOffboard, toCoord);
if (newGameState != null) gameState = newGameState;
offBoard.Refresh();
gamePanel.InvalidateVisual();
}
else if (fromCoord != null && toCoord != null)
{
// From coords to coords
var newGameState = game.TryMakeMove(gameState, FromCoord, toCoord);
if (newGameState != null) gameState = newGameState;
offBoard.Refresh();
gamePanel.InvalidateVisual();
}
if (game.GameOver)
{
if (game.PlayerCount == 1)
{
if (game.Winners.Count() == 1)
{
System.Windows.MessageBox.Show("You won!");
}
else
{
System.Windows.MessageBox.Show("You lost!");
}
}
else
{
if (game.Winners.Count() == 0)
{
System.Windows.MessageBox.Show("Game over!\nThe game ended in a tie!");
}
else if (game.Winners.Count() == 1)
{
System.Windows.MessageBox.Show("Game over!\nThe winner is: " + game.Winners.First().ToString());
}
else
{
System.Windows.MessageBox.Show("Game over!\nThe winners are: " + string.Join(", ", game.Winners));
}
}
NewGame();
}
selectState = SelectState.From;
FromCoord = null;
FromOffboard = null;
toCoord = null;
currentPlayerLabel.Content = gameState.CurrentPlayer.ToString();
}
private void NewGame()
{
if (rulebook == null) return;
GameState state;
this.game = new Game(rulebook, out state);
gameState = state;
game.SetSelectPieceFunction(SelectPiece);
var cache = new ImageCache(game, gamename);
SetCoordTransformation(game);
gamePanel.Game = game;
gamePanel.GetGameState = () => gameState;
gamePanel.ImageCache = cache;
offBoard.Game = game;
offBoard.GetGameState = () => gameState;
offBoard.ImageCache = cache;
gamePanel.InvalidateVisual();
offBoard.Refresh();
currentPlayerLabel.Content = gameState.CurrentPlayer.ToString();
}
public IEnumerable<Coords> EnumerateCoords(GameState state, Player asker)
{
var coords = new List<Coords>();
PossibleCoordsToArray(state, new int[0], 0, asker, coords);
return coords;
}
private bool TargetPredicate(GameState state, Coords coords)
{
return Coords.Match(coords, new Coords(5, 7));
}
public IEnumerable<KeyValuePair<Coords, Piece>> GetPieces(GameState state, Player asker)
{
var newDict = state.Board.Select(kvp => new KeyValuePair<Coords, Piece>(Transformation(asker, kvp.Key), kvp.Value));
return newDict;
}
private bool TruePredicate(GameState state, Coords coords)
{
return true;
}
public IEnumerable<Piece> GetPiecesWithoutCoords(GameState state)
{
return state.Board.Values.AsEnumerable();
}