public Grid(String puzzle) {
String[] initRows = puzzle.split("[\\n\\r]");
List<String> rowList = new ArrayList<String>();
for (String row : initRows) {
if (row.trim().length() > 0) {
rowList.add(row);
}
}
String[] rows = rowList.toArray(new String[rowList.size()]);
init(rows.length, true);
for (int row = 0; row < rows.length; row++) {
String cols = rows[row];
int col = 0;
for (int idx = 0; idx < cols.length(); idx++) {
char c = cols.charAt(idx);
if (c == ' ') {
continue;
}
int value = Integer.parseInt(String.valueOf(c));
if (value != 0) {
setValue(row, col, value);
}
col++;
}
if (col != rows.length) {
throw new IllegalArgumentException(puzzle);
}
}
}
public void setValues(int row, int[] values) {
for (int col = 0; col < size; col++) {
if (values[col] != 0) {
setValue(row, col, values[col]);
}
}
}
public Grid(Grid grid) {
this(grid.size, true);
for (int col = 0; col < size; col++) {
for (int row = 0; row < size; row++) {
if (grid.squares[row][col].hasValue()) {
setValue(row, col, grid.squares[row][col].getValue());
}
}
}
}
public void executeMove(Grid grid) {
grid.setValue(this.row, this.col, this.value);
remainingSquares = grid.getRemainingSquares();
remainingCandidates = grid.getRemainingCandidates();
}
public void setValue(int row, int col, int value) {
if (value < 1 || value > this.size) {
throw new IllegalArgumentException("Illegal value: " + value);
}
setValue(this.squares[row][col], value);
}