1 files changed, 107 insertions, 0 deletions
diff --git a/src/com/itmill/toolkit/demo/gogame/Board.java b/src/com/itmill/toolkit/demo/gogame/Board.java
new file mode 100644
index 0000000000..db37d1262b
--- /dev/null
+++ b/src/com/itmill/toolkit/demo/gogame/Board.java
@@ -0,0 +1,107 @@
+package com.itmill.toolkit.demo.gogame;
+
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.StringTokenizer;
+
+import com.itmill.toolkit.terminal.PaintException;
+import com.itmill.toolkit.terminal.PaintTarget;
+import com.itmill.toolkit.ui.AbstractComponent;
+
+public class Board extends AbstractComponent implements Game.Listener {
+
+	// The game.
+	private Game game;
+	
+	// Players color.
+	private boolean playerPlaysBlack;
+	
+	// Last played coordinates.
+	private int lastX = -1;
+	private int lastY = -1;
+
+	/** Creates board for the specified game, assuming the player plays
+	 * the specified color.
+	 */
+	public Board(Game game, boolean playerPlaysBlack) {
+		this.game = game;
+		this.playerPlaysBlack = playerPlaysBlack;
+		game.addGameListener(this);
+	}
+
+	/** Called on variable change. If the 'move' variable is found, a stone
+	 * is placed for the player accordingly.
+	 */
+	public void changeVariables(Object source, Map variables) {
+		if (variables.containsKey("move")) {
+			StringTokenizer st =
+				new StringTokenizer((String) variables.get("move"), ",");
+			try {
+				int i = Integer.valueOf(st.nextToken()).intValue();
+				int j = Integer.valueOf(st.nextToken()).intValue();
+				game.addStone(i, j, playerPlaysBlack);
+			} catch (NumberFormatException ignore) {
+			} catch (NoSuchElementException ignore) {
+			}
+		}
+	}
+
+	/** Tag for XML output.
+	 */
+	public String getTag() {
+		return "goboard";
+	}
+
+
+	/** Paint the board to XML.
+	 */
+	public void paintContent(PaintTarget target) throws PaintException {
+		target.addAttribute("xmlns", "GO Sample Namespace");
+		target.addAttribute("whitename", game.getWhitePlayer());
+		target.addAttribute("blackname", game.getBlackPlayer());
+		target.addAttribute("moves", game.getMoves());
+		target.addAttribute("whitescaptured", game.getCapturedWhiteStones());
+		target.addAttribute("blackscaptured", game.getCapturedBlackStones());
+		int[][] state = game.getState();
+		for (int j = 0; j < state.length; j++) {
+			target.startTag("row");
+			for (int i = 0; i < state.length; i++) {
+				target.startTag("col");
+				if (state[i][j] == Game.EMPTY)
+					target.addAttribute("move", "" + i + "," + j);
+				else {
+					if (i == lastX && j == lastY)
+						target.addAttribute(
+							"stone",
+							state[i][j] == Game.BLACK
+								? "black-last"
+								: "white-last");
+					else
+						target.addAttribute(
+							"stone",
+							state[i][j] == Game.BLACK ? "black" : "white");
+				}
+				target.endTag("col");
+			}
+			target.endTag("row");
+		}
+
+		target.addVariable(this, "move", "");
+	}
+
+	/** Destructor.
+	 */
+	protected void finalize() throws Throwable {
+		super.finalize();
+		if (game != null)
+			game.removeGameListener(this);
+	}
+
+	/** Implementing the Game.Listener interface, called when a stone is added.
+	 */
+	public void stoneIsAdded(Game game, int i, int j, boolean isBlack) {
+		lastX = i;
+		lastY = j;
+		requestRepaint();
+	}
+}