public boolean isValidMove(String moveTo) {
// TO-DO: add Exception out of the board scope
// throw new UnsupportedOperationException();
ChessMonitoringSystem CMS = ChessMonitoringSystem.getInstance();
if (CMS.getChessPiece(moveTo) == null || CMS.getChessPiece(moveTo).getPlayer() != this.player) {
int xPosDiff = moveTo.charAt(0) - position.charAt(0);
int yPosDiff = moveTo.charAt(1) - position.charAt(1);
if (Math.abs(xPosDiff) == 2 && Math.abs(yPosDiff) == 1) // vertical move
return true;
else if (Math.abs(xPosDiff) == 1 && Math.abs(yPosDiff) == 2) // horizontal move
return true;
}
return false;
}
@Override
public boolean isValidMove(String moveTo) {
// TO-DO: add Exception out of the board scope
// throw new UnsupportedOperationException();
// TO-DO: Exception own chess
if (position == moveTo) return false;
ChessMonitoringSystem CMS = ChessMonitoringSystem.getInstance();
if (CMS.getChessPiece(moveTo) == null || CMS.getChessPiece(moveTo).getPlayer() != this.player) {
int numOfMoves = 0;
ChessPiece tempChess = null;
boolean isBlocked = false;
// Character.toChars(x)
// Integer.toString(i)
// a1a2 vertical move
if (position.charAt(0) == moveTo.charAt(0)) {
// move down
if (position.charAt(1) - moveTo.charAt(1) > 0) {
numOfMoves = (position.charAt(1) - moveTo.charAt(1));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
"" + position.charAt(0) + (char) (position.charAt(1) - i)); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
// move up
if (position.charAt(1) - moveTo.charAt(1) < 0) {
numOfMoves = moveTo.charAt(1) - position.charAt(1);
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
"" + position.charAt(0) + (char) (position.charAt(1) + i)); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
if (isBlocked == false) return true;
else return false;
}
// a1b2 horizontal move
if (position.charAt(1) == moveTo.charAt(1)) {
// move left
if (position.charAt(0) - moveTo.charAt(0) > 0) {
numOfMoves = (position.charAt(0) - moveTo.charAt(0));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
"" + (char) (position.charAt(0) - i) + position.charAt(1)); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
// move right
if (position.charAt(0) - moveTo.charAt(0) < 0) {
numOfMoves = moveTo.charAt(0) - position.charAt(0);
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
"" + (char) (position.charAt(0) + i) + position.charAt(1)); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
if (isBlocked == false) return true;
else return false;
}
if (Math.abs(position.charAt(1) - moveTo.charAt(1))
== Math.abs(position.charAt(0) - moveTo.charAt(0))) {
// top left corner
if (position.charAt(0) - moveTo.charAt(0) > 0
&& position.charAt(1) - moveTo.charAt(1) < 0) {
numOfMoves = (position.charAt(0) - moveTo.charAt(0));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
""
+ (char) (position.charAt(0) - i)
+ (char) ((position.charAt(1) + i))); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
// lower left corner
if (position.charAt(0) - moveTo.charAt(0) > 0
&& position.charAt(1) - moveTo.charAt(1) > 0) {
numOfMoves = (position.charAt(0) - moveTo.charAt(0));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
""
+ (char) (position.charAt(0) - i)
+ (char) ((position.charAt(1) - i))); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
// top right corner
if (position.charAt(0) - moveTo.charAt(0) < 0
&& position.charAt(1) - moveTo.charAt(1) < 0) {
numOfMoves = (moveTo.charAt(0) - position.charAt(0));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
""
+ (char) (position.charAt(0) + i)
+ (char) ((position.charAt(1) + i))); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
// lower right corner
if (position.charAt(0) - moveTo.charAt(0) < 0
&& position.charAt(1) - moveTo.charAt(1) > 0) {
numOfMoves = (moveTo.charAt(1) - position.charAt(1));
// check any pieces in the middle (position to moveTo)
for (int i = 1; i < numOfMoves; i++) {
tempChess =
CMS.getChessPiece(
""
+ (char) (position.charAt(0) + i)
+ (char) ((position.charAt(1) - i))); // wrong formatting
if (tempChess != null) isBlocked = true;
}
}
if (isBlocked == false) return true;
else return false;
}
} // end of most outer loop
return false;
} // end of method