int id;

int x, y;

int length = 2;

Block(int id, int x, int y) {

this.id = id;

this.x = x;

this.y = y;

}

public Board createNeighbour(Board board, int x, int y) {

Board neighbour = new Board(board);

neighbour.move = new int[][]{{this.x, this.y}, {x, y}};

for (Block block : neighbour.blocks.values()) {

if (block.id == id) {

block.x = x;

block.y = y;

}

}

return neighbour;

}

public abstract ArrayList<Board> getNeighbours(Board board);

public abstract boolean covers(int x, int y);

@Override

public abstract Block clone();

@Override

public boolean equals(Object obj) {

if (obj instanceof Block) {

Block other = (Block) obj;

if (getClass() == other.getClass() && id == other.id && x == other.x && y == other.y && length == other.length) {

return true;

}

}

return false;

}