@Override
public boolean removeOptionsAtCoords(int[] options, Collection<Coord> coords) {
boolean removedany = false;
for (Coord coord : coords) {
for (Integer option : options) {
Tile tile = getTileAt(coord);
if (tile.removeOption(option)) {
removedany = true;
}
}
}
return removedany;
}
private void setup(int[] setup) {
areaMap = new LinkedHashMap<Enum<Areas>, List<Area>>();
List<Area> boxes = new LinkedList<Area>();
List<Area> hlists = new LinkedList<Area>();
List<Area> vlists = new LinkedList<Area>();
List<Area> board = new LinkedList<Area>();
List<Area> zero = new LinkedList<Area>();
int side_boxcount = (DIMENSION / TILES_PER_BOX); // 3 when DIMENSION =
// 9;
int total_boxcount = side_boxcount * side_boxcount; // 9 when DIMENSION
// = 9;
tiles = new Tile[DIMENSION][DIMENSION];
/*
* instanciate and add all needed Areas to lists
*/
for (int i = 0; i < total_boxcount; i++) {
boxes.add(new StandardArea());
}
for (int i = 1; i <= DIMENSION; i++) {
hlists.add(new StandardArea());
vlists.add(new StandardArea());
}
int h = 0;
int v = 0;
for (Integer value : setup) {
/*
* prepare the double array with Tiles and hlist, vlist and boxes
* with Coord objects
*/
Coord currentCoord = new Coord(v, h);
tiles[v][h] = new StandardTile(currentCoord, value);
hlists.get(h).addCoord(currentCoord);
vlists.get(v).addCoord(currentCoord);
// the index to the box this iteration has reached
int currentboxnumber = (h / TILES_PER_BOX * side_boxcount + (v / TILES_PER_BOX + 1));
int currentboxindex = currentboxnumber - 1;
boxes.get(currentboxindex).addCoord(new Coord(v, h));
// update coords
v++;
if (v == DIMENSION) {
v = 0;
h++;
}
}
Area boardArea = new StandardArea();
for (Tile[] tilearray : tiles) {
for (Tile tile : tilearray) {
boardArea.addCoord(tile.getCoordinate());
}
}
board.add(boardArea);
Area zeroarea = new StandardArea();
zeroarea.addCoord(new Coord(0, 0));
zero.add(zeroarea);
areaMap.put(Areas.BOX, boxes);
areaMap.put(Areas.ROW, hlists);
areaMap.put(Areas.COL, vlists);
areaMap.put(Areas.BOARD, board);
areaMap.put(Areas.ZERO, zero);
}
@Override
public boolean validMove() {
List<Board.Areas> areas_of_interest = new ArrayList<Areas>();
areas_of_interest.add(Board.Areas.ROW);
areas_of_interest.add(Board.Areas.COL);
areas_of_interest.add(Board.Areas.BOX);
/*
* for all areas defined in Board.Areas
*/
for (Enum<Board.Areas> area : areas_of_interest) {
/*
* improves performance based on what area we are looking at.
*/
int vcondition = Board.DIMENSION;
int hcondition = Board.DIMENSION;
int inc = 1;
if (area.equals(Board.Areas.ROW)) {
vcondition = 1;
}
if (area.equals(Board.Areas.COL)) {
hcondition = 1;
}
if (area.equals(Board.Areas.BOX)) {
inc = Board.TILES_PER_BOX;
}
/*
* run over all possible Coords
*/
for (int h = 0; h < hcondition; h += inc) {
for (int v = 0; v < vcondition; v += inc) {
Coord current_coord = new Coord(v, h);
Options optionschecklist = new Options();
List<Integer> valuechecklist = new ArrayList<Integer>();
for (Coord rowcoord : getAreaAt(area, current_coord).getCoords()) {
Tile tile = getTileAt(rowcoord);
if (tile.getValue() != 0) {
if (!valuechecklist.contains(tile.getValue())) {
valuechecklist.add(tile.getValue());
optionschecklist.removeOption(tile.getValue());
} else {
// System.out
// .println("INVALID MOVE - 2X VALUES IN SAME HROW - VALUE "
// + tile.getValue() + " AT " + rowcoord);
return false;
}
}
Options to = tile.getOptions();
optionschecklist.removeOptions(to.copyList());
}
if (!optionschecklist.copyList().isEmpty()) {
// System.out
// .println("INVALID MOVE - THESE OPTIONS ARE NO LONGER REACHABLE: "
// + optionschecklist + " AT " + bc);
return false;
}
}
}
}
return true;
}