Minesweeper Flood Fill bug

Unity Engine
1

Hey there again, I’m writing minesweeper in Unity for educational purposes and I’ve got a specific case in which my flood fill algorithm is not uncovering blocks that it should. Here’s a screenshot to illustrate:

In traditional windows minesweeper, under the same circumstances, the block circled is revealed.

My function:

    public void floodFill(int x, int y, bool[,] visited){
        // Stay in bounds
        if (x >= 0 && y >= 0 && x < GameManager.boardScript.columns && y < GameManager.boardScript.rows) {
            if (visited [x, y]) {
                return;
            }

            // Reveal block with appropriate count
            elements[x, y].loadTexture(adjacentMines(x, y));

            // Close to a mine? Stop
            if (adjacentMines(x, y) > 0){
                return;
            }

            // One down
            visited [x, y] = true;

            // Go go go
            floodFill (x - 1, y, visited);
            floodFill (x + 1, y, visited);
            floodFill (x, y - 1, visited);
            floodFill (x, y + 1, visited);
        }
    }

Any help greatly appreciated! I’m still very new to unity and programming. :frowning:

2

Welp I think I just fixed it myself. xD

// Go go go!
            floodFill (x - 1, y, visited);
            floodFill (x + 1, y, visited);
            floodFill (x - 1, y - 1, visited);
            floodFill (x - 1, y + 1, visited);
            floodFill (x + 1, y + 1, visited);
            floodFill (x + 1, y - 1, visited);
            floodFill (x, y - 1, visited);
            floodFill (x, y + 1, visited);