}

			}
		}
		//如果點擊的是“創建游戲”按鈕，設定用戶狀態、按鈕狀態，然后與服務器通訊。
		if (e.getSource() == controlpad.creatGameButton) {
			try {
				//未建立連接時的操作。
				if (!isGameConnected) {
					if (chesspad.connectServer(chesspad.host, chesspad.port)) {
						isGameConnected = true;
						isOnChess = true;
						isServer = true;
						controlpad.creatGameButton.setEnabled(false);
						controlpad.joinGameButton.setEnabled(false);
						controlpad.cancelGameButton.setEnabled(true);
						chesspad.chessthread.sendMessage("/creatgame "
								+ "[inchess]" + chessClientName);
					}
				}
				//建立連接時的操作。
				else {
					isOnChess = true;
					isServer = true;
					controlpad.creatGameButton.setEnabled(false);
					controlpad.joinGameButton.setEnabled(false);
					controlpad.cancelGameButton.setEnabled(true);
					chesspad.chessthread.sendMessage("/creatgame "
							+ "[inchess]" + chessClientName);
				}
			} catch (Exception ec) {
				isGameConnected = false;
				isOnChess = false;
				isServer = false;
				controlpad.creatGameButton.setEnabled(true);
				controlpad.joinGameButton.setEnabled(true);
				controlpad.cancelGameButton.setEnabled(false);
				ec.printStackTrace();
				chatpad.chatLineArea.setText("chesspad.connectServer無法連接 \n"
						+ ec);
			}

		}
		//如果點擊的是“取消游戲”按鈕，同樣要修改按鈕狀態。
		if (e.getSource() == controlpad.cancelGameButton) {
			//如果棋局正在進行，判定退出游戲的一方輸
			if (isOnChess) {
				chesspad.chessthread.sendMessage("/giveup " + chessClientName);
				chesspad.chessVictory(-1 * chesspad.chessColor);
				controlpad.creatGameButton.setEnabled(true);
				controlpad.joinGameButton.setEnabled(true);
				controlpad.cancelGameButton.setEnabled(false);
				chesspad.statusText.setText("請建立游戲或者加入游戲");
			}
			if (!isOnChess) {
				controlpad.creatGameButton.setEnabled(true);
				controlpad.joinGameButton.setEnabled(true);
				controlpad.cancelGameButton.setEnabled(false);
				chesspad.statusText.setText("請建立游戲或者加入游戲");
			}
			isClient = isServer = false;
		}
		//如果點擊的是“改變顏色”按鈕，則彈出“顏色選擇”對話框供用戶選擇界面顏色。
		if (e.getSource() == controlpad.colorChangeButton) {
			JColorChooser nextColor = new JColorChooser();
			Color selectedColor = JColorChooser.showDialog(this, "選擇背景顏色",
					Color.BLACK);
			chesspad.setBackground(selectedColor);
			inputpad.setBackground(selectedColor);
			controlpad.setBackground(selectedColor);
			chesspad.statusLabel.setBackground(selectedColor);
			inputpad.chatLabel.setBackground(selectedColor);
			controlpad.IPlabel.setBackground(selectedColor);
			westPanel.setBackground(selectedColor);
			centerPanel.setBackground(selectedColor);
			southPanel.setBackground(selectedColor);
		}

	}

	/**
	 * 鍵盤監聽器，響應“回車按下”事件.
	 */
	public void keyPressed(KeyEvent e) {
		TextField inputWords = (TextField) e.getSource();
		//如果選擇向所有人發消息，則將所發消息直接發給服務器
		if (e.getKeyCode() == KeyEvent.VK_ENTER) {
			if (inputpad.userChoice.getSelectedItem().equals("所有人")) {
				try {
					out.writeUTF(inputWords.getText());
					inputWords.setText("");
				} catch (Exception ea) {
					chatpad.chatLineArea
							.setText("chessClient:KeyPressed無法連接,建議重新連接 \n");
					userpad.userList.removeAll();
					inputpad.userChoice.removeAll();
					inputWords.setText("");
					controlpad.connectButton.setEnabled(true);
				}
			}
			//如果選擇向一個人發消息，則將所發消息封裝成一定格式發給服務器
			else {
				try {
					out.writeUTF("/" + inputpad.userChoice.getSelectedItem()
							+ " " + inputWords.getText());
					inputWords.setText("");
				} catch (Exception ea) {
					chatpad.chatLineArea
							.setText("chessClient:KeyPressed無法連接,建議重新連接 \n");
					userpad.userList.removeAll();
					inputpad.userChoice.removeAll();
					inputWords.setText("");
					controlpad.connectButton.setEnabled(true);
				}
			}
		}

	}

	public void keyTyped(KeyEvent e) {
	}

	public void keyReleased(KeyEvent e) {
	}

	public static void main(String args[]) {
		chessClient chessClient = new chessClient();
	}
}
/**
 * 客戶端線程
 */

class clientThread extends Thread {
	chessClient chessclient;

	clientThread(chessClient chessclient) {
		this.chessclient = chessclient;
	}

	/**
	 * 客戶端線程對接收到的信息進行處理的函數
	 */
	public void acceptMessage(String recMessage) {
		if (recMessage.startsWith("/userlist ")) {
			//如果接收到的信息以"/userlist "開頭，將其后的用戶名提取出來，添加到
			//輸入信息Panel左邊的用戶列表中。
			StringTokenizer userToken = new StringTokenizer(recMessage, " ");
			int userNumber = 0;

			chessclient.userpad.userList.removeAll();
			chessclient.inputpad.userChoice.removeAll();
			chessclient.inputpad.userChoice.addItem("所有人");
			while (userToken.hasMoreTokens()) {
				String user = (String) userToken.nextToken(" ");
				if (userNumber > 0 && !user.startsWith("[inchess]")) {
					chessclient.userpad.userList.add(user);
					chessclient.inputpad.userChoice.addItem(user);
				}

				userNumber++;
			}
			chessclient.inputpad.userChoice.select("所有人");
		}
		//如果如果接收到的信息以"/yourname "開頭,將用戶名顯示在客戶端對話框標題欄。
		else if (recMessage.startsWith("/yourname ")) {
			chessclient.chessClientName = recMessage.substring(10);
			chessclient.setTitle("五子棋客戶端 " + "當前用戶名:"
					+ chessclient.chessClientName);
		}
		//如果如果接收到的信息以"/reject"開頭，在狀態欄顯示拒絕加入游戲。
		else if (recMessage.equals("/reject")) {
			try {
				chessclient.chesspad.statusText.setText("不能加入游戲");
				chessclient.controlpad.cancelGameButton.setEnabled(false);
				chessclient.controlpad.joinGameButton.setEnabled(true);
				chessclient.controlpad.creatGameButton.setEnabled(true);
			} catch (Exception ef) {
				chessclient.chatpad.chatLineArea
						.setText("chessclient.chesspad.chessSocket.close無法關閉");
			}
			chessclient.controlpad.joinGameButton.setEnabled(true);
		}
		//如果如果接收到的信息以"/peer"開頭,則記下對方的名字，然后進入等待狀態
		else if (recMessage.startsWith("/peer ")) {
			chessclient.chesspad.chessPeerName = recMessage.substring(6);
			if (chessclient.isServer) {
				chessclient.chesspad.chessColor = 1;
				chessclient.chesspad.isMouseEnabled = true;
				chessclient.chesspad.statusText.setText("請黑棋下子");
			} else if (chessclient.isClient) {
				chessclient.chesspad.chessColor = -1;
				chessclient.chesspad.statusText.setText("已加入游戲，等待對方下子...");
			}

		} else if (recMessage.equals("/youwin")) {
			chessclient.isOnChess = false;
			chessclient.chesspad.chessVictory(chessclient.chesspad.chessColor);
			chessclient.chesspad.statusText.setText("對方退出，請點放棄游戲退出連接");
			chessclient.chesspad.isMouseEnabled = false;
		} else if (recMessage.equals("/OK")) {
			chessclient.chesspad.statusText.setText("創建游戲成功，等待別人加入...");
		} else if (recMessage.equals("/error")) {
			chessclient.chatpad.chatLineArea.append("傳輸錯誤：請退出程序，重新加入 \n");
		} else {
			chessclient.chatpad.chatLineArea.append(recMessage + "\n");
			chessclient.chatpad.chatLineArea
					.setCaretPosition(chessclient.chatpad.chatLineArea
							.getText().length());
		}
	}

	public void run() {
		String message = "";
		try {
			while (true) {
				message = chessclient.in.readUTF();
				acceptMessage(message);
			}
		} catch (IOException es) {
		}
	}

}