package vrampal.connectfour.webjsp.view;
import javax.servlet.http.HttpSession;
import vrampal.connectfour.core.Board;
import vrampal.connectfour.core.Game;
import vrampal.connectfour.core.GameStatus;
import vrampal.connectfour.core.Player;
import vrampal.connectfour.webjsp.SessionKeys;
/**
* Used by main-display.jsp to print the board.
*/
public class BoardPrinter implements SessionKeys {
public String printBoard(HttpSession session) {
String retVal = "";
Object candidate = session.getAttribute(SESSION_GAME_KEY);
// Protects against null and ClassCastException
if (candidate instanceof Game) {
retVal = printBoard((Game) candidate);
}
return retVal;
}
String printBoard(Game game) {
Board board = game.getBoard();
int height = board.getHeight();
int width = board.getWidth();
GameStatus status = game.getStatus();
StringBuilder buff = new StringBuilder(1300);
if (status == GameStatus.ONGOING) {
buff.append("<tr>");
for (int colIdx = 1; colIdx <= width; colIdx++) {
buff.append("<td class=\"cfh\"><a href=\"?col=");
buff.append(colIdx);
buff.append("\">V</a></td>");
}
buff.append("</tr>");
}
for (int rowIdx = height; rowIdx > 0; rowIdx--) {
buff.append("<tr>");
for (int colIdx = 1; colIdx <= width; colIdx++) {
Player content = board.getCell(colIdx - 1, rowIdx - 1);
char c = content.getLetter();
String clazz = "cfe";
if (c == 'R') {
clazz = "cfr";
} else if (c == 'Y') {
clazz = "cfy";
}
buff.append("<td class=\"");
buff.append(clazz);
buff.append("\"></td>");
}
buff.append("</tr>");
}
return buff.toString();
}
}