Check neighbours in current position using:

int[] neighbours = robot.checkNeighbours(robot.current_x, robot.current_y);

This will return and array called neighbours with 4 elements, neighbours[?, ?, ?, ?].

• neighbours[0] will store a 0, 1, 2 or 3 depending on the cell to the North
• neighbours[1] will store a 0, 1, 2 or 3 depending on the cell to the South
• neighbours[2] will store a 0, 1, 2 or 3 depending on the cell to the East
• neighbours[3] will store a 0, 1, 2 or 3 depending on the cell to the West

The 0, 1, 2, or 3 stored in the array represent the following:

• 0 - Unoccupied
• 1 - Occupied
• 2 - Starting cell
• 3 - Goal