private int controlBorders(int hv) {
int heurVal = hv;
for (int row = 2; row < Board.SIZE - 3; row++) {
if (board.getField()[row][0] == myTile) {
heurVal += 5;
}
if (board.getField()[row][Board.SIZE - 1] == myTile) {
heurVal += 5;
}
}
for (int col = 2; col < Board.SIZE - 3; col++) {
if (board.getField()[0][col] == myTile) {
heurVal += 5;
}
if (board.getField()[Board.SIZE - 1][col] == myTile) {
heurVal += 5;
}
}
return heurVal;
}
public int extraHV() {
int heurVal = board.getPossiblePositions(myTile).size() * 3;
if (heurVal == 0 && board.getPossiblePositions(myTile.getOpposite()).isEmpty()) {
int myCount = 0, otherCount = 0;
for (int row = 0; row < Board.SIZE; row++) {
for (int col = 0; col < Board.SIZE; col++) {
if (board.getField()[row][col] == myTile) {
myCount++;
} else if (board.getField()[row][col] == myTile.getOpposite()) {
otherCount++;
}
}
if (myCount - otherCount < 0) {
return -10000;
} else if (myCount - otherCount > 0) {
return 10000;
}
}
}
heurVal += controlCorners(heurVal) + controlBorders(heurVal);
return heurVal;
}
private int controlCorners(int hv) {
int heurVal = hv;
if (board.getField()[0][0] == Tile.EMPTY) {
if (board.getField()[0][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][0] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[0][0] == myTile) {
heurVal += 50;
}
if (board.getField()[Board.SIZE - 1][0] == Tile.EMPTY) {
if (board.getField()[Board.SIZE - 1][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][0] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[Board.SIZE - 1][0] == myTile) {
heurVal += 50;
}
if (board.getField()[0][Board.SIZE - 1] == Tile.EMPTY) {
if (board.getField()[1][Board.SIZE - 1] == myTile) {
heurVal -= 10;
}
if (board.getField()[0][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[0][Board.SIZE - 1] == myTile) {
heurVal += 50;
}
if (board.getField()[Board.SIZE - 1][Board.SIZE - 1] == Tile.EMPTY) {
if (board.getField()[Board.SIZE - 2][Board.SIZE - 1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 1][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[Board.SIZE - 1][Board.SIZE - 1] == myTile) {
heurVal += 50;
}
return heurVal;
}