@Override
public List<DiscreteGameState> availableStates() {
List<Position> availableMoves = board.getOpenPositions();
List<DiscreteGameState> availableStates =
new ArrayList<DiscreteGameState>(availableMoves.size());
for (Position move : availableMoves) {
TicTacToeGameState newState = new TicTacToeGameState(this);
newState.play(move.getRow(), move.getCol());
newState.switchPlayer();
availableStates.add(newState);
}
return availableStates;
}
public boolean step(Position to) {
if (to.isNull()) {
return false;
}
int tmpRow = super.position.getRow() - to.getRow();
int tmpColumn = super.position.getColumn() - to.getColumn();
boolean flag = (tmpRow == 0 || tmpColumn == 0);
if (!Board.isEmpty(to)) {
return flag && (Board.getColour(to) != super.getColour());
}
return flag;
}
public int toDOT(FileWriter fr, boolean redColored, int i) throws IOException {
String red, format, val, blue;
int me = i, aux;
if (redColored) {
red = "color=red, style=filled, ";
} else {
red = "";
}
if (value == Integer.MAX_VALUE || value == Integer.MIN_VALUE) {
val = "";
blue = "color=blue, style=filled, ";
} else {
val = "" + value;
blue = "";
}
format = getDOTFormat();
fr.append(me + " [" + red + blue + format + "label=\"" + pos.toString() + " " + val + "\"];\n");
boolean redSon, selected = true;
for (Node son : childs) {
if (selected && son.value == value) {
selected = false;
redSon = true;
} else {
redSon = false;
}
aux = i + 1;
i = son.toDOT(fr, redSon, ++i);
fr.append(me + " -> " + aux + ";\n");
}
return i;
}