public void setChilds() { int myRow, myCol; for (int row = 0; row < Board.SIZE; row++) { for (int col = 0; col < Board.SIZE; col++) { if (board.getTile(row, col) == myTile.getOpposite()) { for (Direction dir : Direction.values()) { myRow = row + dir.getRow(); myCol = col + dir.getCol(); if (!(myRow < 0 || myCol < 0 || myRow >= Board.SIZE || myCol >= Board.SIZE) && board.getTile(myRow, myCol) == Tile.EMPTY) { if (board.possibleChange(myRow, myCol, myTile, dir.getOpposite())) { childs.add( getNewChild( board.putTile(myRow, myCol, myTile.getOpposite()), new Position(myRow, myCol), myTile.getOpposite())); } } } } } } }