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/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.browser.demos.views;
import org.eclipse.jface.action.Action;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.browser.LocationListener;
import org.eclipse.swt.examples.browser.demos.BrowserDemoPlugin;
import org.eclipse.swt.examples.browser.demos.Pawns;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.TabItem;
public class PawnTab {
Action pawnAction;
Action editAction;
Browser browser = null;
ReversiListener reversiListener;
final static int TYPE_WELCOME = 1;
final static int TYPE_START = 2;
final static int TYPE_BOARD = 3;
final static int TYPE_BOARD_OVER = 4;
final static String URL = "http://www.org.eclipse.swt.examples.browser.demos.pawns/";
static String PLUGIN_PATH = BrowserDemoPlugin.PLUGIN_PATH;
static String CSS_FOLDER = "css2";
static String URL_CSS = PLUGIN_PATH+CSS_FOLDER+"/style.css";
static String URL_WELCOME =PLUGIN_PATH+CSS_FOLDER+"/welcome.html";
final static String ACTION_START_2_PLAYERS = "actionstart2players";
final static String ACTION_START_1_PLAYER = "actionstart1player";
final static String ACTION_WHITE = "actionwhite";
final static String ACTION_BLACK = "actionblack";
final static String ACTION_THEME = "actiontheme";
static byte[][] game = null;
static boolean isWhite = true;
static int cntWhite = 0, cntBlack = 0;
static boolean computer = false;
static int cx, cy;
final static byte EMPTY = 0;
final static byte WHITE = 1;
final static byte BLACK = 2;
final static byte WALL = 3;
static Pawns ttr = null;
static int[] move = new int[2];
public PawnTab(TabItem item) {
try {
browser = new Browser(item.getParent(), SWT.NONE);
} catch (SWTError e) {
e.printStackTrace();
return;
}
item.setText("Pawns");
item.setControl(browser);
Menu menu = new Menu(browser.getShell(), SWT.POP_UP);
MenuItem item2 = new MenuItem(menu, SWT.PUSH);
item2.setText("End Game");
item2.addListener(SWT.Selection, e -> {
game = null;
isWhite = true;
cntWhite = 0; cntBlack = 0;
ttr = null;
browser.setUrl(URL_WELCOME);
});
browser.setMenu(menu);
reversiListener = new ReversiListener();
browser.addLocationListener(reversiListener);
browser.setUrl(URL_WELCOME);
}
static String getHtml(int type) {
String html = null;
switch (type) {
case TYPE_BOARD:
case TYPE_BOARD_OVER: {
html = "<html><header><link rel=\"stylesheet\" type=\"text/css\" href=\""+URL_CSS+"\"></header><body><div class=\"board\"><table><tbody>";
String classPlayerWhite = "playerwhite", classPlayerBlack = "playerblack";
if (type == TYPE_BOARD_OVER) {
if (cntWhite > cntBlack) {
classPlayerWhite += " winner";
classPlayerBlack += " loser";
} else {
classPlayerWhite += " loser";
classPlayerBlack += " winner";
}
}
String white = "<td class=\"white\"/>";
String black = "<td class=\"black\"/>";
String wall = "<td class=\"wall\"/>";
for (int i = 0; i < game.length; i++) {
html += "<tr>";
for (int j = 0; j < game[0].length; j++) {
switch (game[i][j]) {
case EMPTY: {
String empty = "<td class=\""+(isWhite ? "whitelink" : "blacklink")+"\">"+ (isWhite || (!isWhite && !computer) ? "<a href=\""+URL+(isWhite ? ACTION_WHITE : ACTION_BLACK)+"/xx"+i+"yy"+j+"\" class=\"empty\"/>" : "<div class=\"empty\"/>")+"</td>";
html += empty; break;
}
case WHITE: html += white; break;
case BLACK: html += black; break;
case WALL: html += wall; break;
}
}
html +="</tr>";
}
html += "</tbody></table></div>";
html += "<div class=\""+classPlayerWhite+"\">"+cntWhite+"</div>";
html += "<div class=\""+classPlayerBlack+"\">"+cntBlack+"</div>";
html += "</body></html>";
break;
}
}
return html;
}
public class ReversiListener implements LocationListener {
@Override
public void changed(LocationEvent e) {
}
@Override
public void changing(LocationEvent e) {
try {
final Browser browser = (Browser)e.widget;
if (e.location.indexOf(ACTION_START_1_PLAYER) != -1 || e.location.indexOf(ACTION_START_2_PLAYERS) != -1) {
computer = e.location.indexOf(ACTION_START_1_PLAYER) != -1;
game = new byte[8][8];
if (computer) ttr = new Pawns();
for (int i = 0; i < 5; i++) game[(int)(Math.random()*game.length)][(int)(Math.random()*game[0].length)] = WALL;
e.display.asyncExec(() -> browser.setText(getHtml(TYPE_BOARD)));
e.doit = false;
return;
}
if (e.location.indexOf(ACTION_THEME) != -1) {
int index = e.location.indexOf(ACTION_THEME) + ACTION_THEME.length() + 1;
CSS_FOLDER = e.location.substring(index, index + 4);
URL_CSS = PLUGIN_PATH+CSS_FOLDER+"/style.css";
URL_WELCOME = PLUGIN_PATH+CSS_FOLDER+"/welcome.html";
e.display.asyncExec(() -> browser.setUrl(URL_WELCOME));
e.doit = false;
return;
}
byte player = EMPTY;
if (e.location.indexOf(ACTION_WHITE) != -1) player = WHITE;
else if (e.location.indexOf(ACTION_BLACK) != -1) player = BLACK;
if (player != EMPTY) {
int index = e.location.indexOf("xx") + 2;
int x = Integer.parseInt(e.location.substring(index, index + 1));
index = e.location.indexOf("yy") + 2;
int y = Integer.parseInt(e.location.substring(index, index + 1));
boolean hasMore = add(x, y, player);
isWhite = player != WHITE;
browser.setText(getHtml(hasMore ? TYPE_BOARD : TYPE_BOARD_OVER));
if (computer && hasMore && !isWhite) play(e.display, browser, 5000);
e.doit = false;
}
}catch (Exception e1 ) {
e1.printStackTrace();
}
}
}
public static boolean add(int x, int y, byte color) {
game[x][y] = color;
int cnt = Math.min(x, y), n = 0;
int other_color = color == WHITE ? BLACK : WHITE;
for (int d = 1; d <= cnt; d++) {
if (game[x-d][y-d] == other_color) n++;
else if (game[x-d][y-d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x-d][y-d] = color; break; }
}
cnt = Math.min(game.length - 1 - x, game[0].length - 1 - y); n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x+d][y+d] == other_color) n++;
else if (game[x+d][y+d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x+d][y+d] = color; break; }
}
cnt = Math.min(game.length - 1 - x, y); n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x+d][y-d] == other_color) n++;
else if (game[x+d][y-d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x+d][y-d] = color; break; }
}
cnt = Math.min(x, game[0].length - 1 - y); n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x-d][y+d] == other_color) n++;
else if (game[x-d][y+d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x-d][y+d] = color; break; }
}
cnt = y; n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x][y-d] == other_color) n++;
else if (game[x][y-d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x][y-d] = color; break; }
}
cnt = game[0].length - 1 - y; n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x][y+d] == other_color) n++;
else if (game[x][y+d] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x][y+d] = color; break; }
}
cnt = x; n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x-d][y] == other_color) n++;
else if (game[x-d][y] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x-d][y] = color; break; }
}
cnt = game.length - 1 - x; n = 0;
for (int d = 1; d <= cnt; d++) {
if (game[x+d][y] == other_color) n++;
else if (game[x+d][y] != color) break;
else { if (n > 0) for (d = 1; d <= n; d++) game[x+d][y] = color; break; }
}
boolean hasMore = false;
cntWhite = 0; cntBlack = 0;
for (int i = 0; i < game.length; i++)
for (int j = 0; j < game[0].length; j++) {
switch (game[i][j]) {
case EMPTY: hasMore = true; break;
case WHITE: cntWhite++; break;
case BLACK: cntBlack++; break;
}
}
return hasMore;
}
public static void play(final Display display, final Browser browser, int delay) {
ttr.playRequest(game, BLACK);
display.timerExec(3000, () -> {
ttr.getBestMove(move);
boolean hasMore = add(move[0], move[1], BLACK);
isWhite = true;
browser.setText(getHtml(hasMore ? TYPE_BOARD : TYPE_BOARD_OVER));
});
}
public static void main(String[] args) {
}
}
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