using System; using System.Drawing; using Gtk; using Gdk; using Gnome; using GtkSharp; public class Fifteen { const int SCRAMBLE_MOVES = 256; static Gtk.Window window = null; static Canvas canvas = null; static BoardPiece [] board; static void Main (string [] args) { if (args.Length > 0 && args [0] == "debug") BoardPiece.Debug = true; Program fifteen = new Program ("Fifteen", "0.1", Modules.UI, args); window = new Gtk.Window ("Fifteen #"); VBox box = new VBox (false, 0); window.Add (box); window.DefaultSize = new Size (300, 300); VBox vbox = new VBox (false, 4); vbox.BorderWidth = 4; MenuBar menu = Create_Menu (); box.PackStart (menu, false, false, 0); box.PackStart (vbox, false, false, 0); window.DeleteEvent += new DeleteEventHandler (Window_Delete); Alignment alignment = new Alignment (0.5f, 0.5f, 0.0f, 0.0f); vbox.PackStart (alignment, true, true, 4); Frame frame = new Frame (null); frame.ShadowType = ShadowType.In; alignment.Add (frame); canvas = new Canvas (); canvas.SetSizeRequest (BoardPiece.PIECE_SIZE * 4 + 1, BoardPiece.PIECE_SIZE * 4 + 1); canvas.SetScrollRegion (0, 0, BoardPiece.PIECE_SIZE * 4 + 1, BoardPiece.PIECE_SIZE * 4 + 1); frame.Add (canvas); board = new BoardPiece [16]; for (int i = 0; i < 15; i ++) { int y = i /4; int x = i % 4; board [i] = new BoardPiece (canvas.Root (), board, x, y, i); } box.PackStart (new HSeparator (), false, false, 0); HBox hbox = new HBox (false, 4); box.PackStart (hbox, true, false, 4); // Scramble button here. Button scramble = new Button ("_Scramble"); scramble.BorderWidth = 8; scramble.Clicked += new EventHandler (Scramble); scramble.CanDefault = true; hbox.PackStart (scramble, true, true, 4); scramble.GrabDefault (); // Close button Button close = new Button ("_Close"); close.BorderWidth = 8; close.Clicked += new EventHandler (Quit); hbox.PackStart (close, true, true, 4); window.ShowAll (); fifteen.Run (); } static void Quit (object o, EventArgs args) { Application.Quit (); } static Gtk.MenuBar Create_Menu () { MenuBar mb = new MenuBar (); Menu file_menu = new Menu (); ImageMenuItem scramble_item = new ImageMenuItem ("_Scramble"); scramble_item.Image = new Gtk.Image (Gtk.Stock.Refresh, IconSize.Menu); scramble_item.Activated += new EventHandler (Scramble); ImageMenuItem quit_item = new ImageMenuItem ("_Quit"); quit_item.Image = new Gtk.Image (Gtk.Stock.Quit, IconSize.Menu); quit_item.Activated += new EventHandler (Quit); file_menu.Append (scramble_item); file_menu.Append (new SeparatorMenuItem ()); file_menu.Append (quit_item); MenuItem file_item = new MenuItem ("_File"); file_item.Submenu = file_menu; mb.Append (file_item); Menu help_menu = new Menu (); MenuItem help_item = new MenuItem ("_Help"); help_item.Submenu = help_menu; ImageMenuItem about = new ImageMenuItem (Gnome.Stock.About, new AccelGroup ()); about.Activated += new EventHandler (About_Box); help_menu.Append (about); mb.Append (help_item); return mb; } static void About_Box (object o, EventArgs args) { string [] authors = new string [] { "Duncan Mak (duncan@ximian.com)", }; string [] documenters = new string [] {}; string translaters = null; Pixbuf pixbuf = new Pixbuf ("pixmaps/gnome-color-browser.png"); Gnome.About about = new Gnome.About ("Fifteen #", "0.1", "Copyright (C) 2002, Ximian Inc.", "A C# port of Fifteen, a gnomecanvas demo", authors, documenters, translaters, pixbuf); about.Show (); } static void Scramble (object o, EventArgs args) { Random rand = new Random (); int blank; int position; // find blank spot for (position = 0; position < 16; position ++) if (board [position] == null) break; for (int i = 0; i < SCRAMBLE_MOVES; i++) { retry: int dir = rand.Next (4); int x = 0, y = 0; if ((dir == 0) && (position > 3)) // up y = -1; else if ((dir == 1) && (position < 12)) // down y = 1; else if ((dir == 2) && ((position % 4) != 0)) // left x = -1; else if ((dir == 3) && ((position % 4) != 3)) // right x = 1; else goto retry; int old_position = position + y * 4 + x; board [position] = board [old_position]; board [position].Position = position; board [old_position] = null; board [position].Move (-x * BoardPiece.PIECE_SIZE, -y * BoardPiece.PIECE_SIZE); canvas.UpdateNow (); position = old_position; } } static void Window_Delete (object o, DeleteEventArgs args) { Application.Quit (); args.RetVal = true; } } public class BoardPiece : Gnome.CanvasGroup { public static int PIECE_SIZE = 50; public int Number; int position; public CanvasText Text; public BoardPiece [] Board; public static bool Debug = false; public BoardPiece (CanvasGroup group, BoardPiece [] board, int x, int y, int i) : base (group, CanvasGroup.GType) { this.X = (x * PIECE_SIZE); this.Y = (y * PIECE_SIZE); this.Board = board; this.Number = i; this.Position = i; CanvasRect rect = new CanvasRect (this); rect.X1 = 0.0; rect.Y2 = 0.0; rect.X2 = PIECE_SIZE; rect.Y2 = PIECE_SIZE; rect.FillColor = Color; rect.OutlineColor = "black"; rect.WidthPixels = 0; CanvasText text = new CanvasText (this); text.Text = (i + 1).ToString (); text.X = PIECE_SIZE / 2.0; text.Y = PIECE_SIZE / 2.0; text.Font = "Sans Bold 24"; text.Anchor = AnchorType.Center; text.FillColor = "black"; this.Text = text; this.CanvasEvent += new GnomeSharp.CanvasEventHandler (Piece_Event); } public string Color { get { int y = Number / 4; int x = Number % 4; int r = ((4 - x) * 255) / 4; int g = ((4 - y) * 255) / 4; int b = 128; return String.Format ("#{0:x2}{1:x2}{2:x2}", r, g, b); } } public int Position { get { return position; } set { Board [value] = this; position = value; } } static void Piece_Event (object o, GnomeSharp.CanvasEventArgs args) { BoardPiece piece = (BoardPiece) o; Canvas canvas = piece.Canvas; double dx = 0.0, dy = 0.0; switch (args.Event.Type) { case EventType.EnterNotify: piece.Text.FillColor = "white"; break; case EventType.LeaveNotify: piece.Text.FillColor = "black"; break; case EventType.ButtonPress: int y = piece.Position / 4; int x = piece.Position % 4; Print_Position ("from", piece.Position, true); bool toMove = true; if ((y > 0) && (piece.Board [(y - 1) * 4 + x] == null)) { dx = 0.0; dy = -1.0; y --; } else if ((y < 3) && (piece.Board [(y + 1) * 4 + x] == null)) { dx = 0.0; dy = 1.0; y ++; } else if ((x > 0) && (piece.Board [y * 4 + x - 1] == null)) { dx = -1.0; dy = 0.0; x --; } else if ((x < 3) && (piece.Board [y * 4 + x + 1] == null)) { dx = 1.0; dy = 0.0; x ++; } else toMove = false; if (toMove) { int new_position = y * 4 + x; Print_Position ("to", new_position, false); piece.Board [piece.Position] = null; piece.Position = new_position; piece.Move (dx * PIECE_SIZE, dy * PIECE_SIZE); } else Print_Position ("to", piece.Position, false); break; default: break; } args.RetVal = false; } static void Print_Position (string text, int position, bool newLine) { if (!Debug) return; else { int x = position / 4; int y = position % 4; string output = String.Format (" {0} ({1}, {2})", text, x + 1, y + 1); if (newLine) Console.Write (output); else Console.WriteLine (output); } } }