void clickTile(GameBoard *g, int row, int col) {
// if the tile has no neighbouring mines AND is covered (0 value)..
if ( g->board[row][col].numOfMines==0 && g->board[row][col].isVisible==FALSE)
{
if (row < g->rows-1 && g->board[row][col].numOfMines==0 && g->board[row+1][col].numOfMines>=0 && g->board[row+1][col].isVisible<=0) { //can go right
g->board[row][col].isVisible=1;
clickTile(g, row+1, col);
}
if (col < g->cols-1 && g->board[row][col].numOfMines==0 && g->board[row][col+1].numOfMines>=0 && g->board[row][col+1].isVisible==0) { //can go down
g->board[row][col].isVisible=1;
clickTile(g, row, col+1);
}
if (row > 0 && g->board[row][col].numOfMines==0 && g->board[row-1][col].numOfMines>=0 && g->board[row-1][col].isVisible<=0) { //can go left
g->board[row][col].isVisible=1;
clickTile(g, row-1, col);
}
if (col > 0 && g->board[row][col].numOfMines==0 && g->board[row][col-1].numOfMines>=0 && g->board[row][col-1].isVisible<=0) { //can go up
g->board[row][col].isVisible=1;
clickTile(g, row, col-1);
}
g->board[row][col].isVisible=TRUE;
}
// if the tile neighbours a mine and is covered (0 < value)..
if ( g->board[row][col].numOfMines>0 && g->board[row][col].isVisible==FALSE)
{
g->board[row][col].isVisible=TRUE;
}
// if the tile is uncovered then don't do anything
if (g->board[row][col].isVisible==TRUE) return;
// if the tile is flagged then it shouldn't be uncovered
else if (g->board[row][col].isFlagged==TRUE) return;
// if the tile is a mine, set the losing condition
else if (g->board[row][col].isMine==TRUE) {
g->board[row][col].isVisible = 1;
g->isMineClicked = 1;
}
// uncover the tile
else {
g->board[row][col].isVisible=1;
g->board[row][col].isFlagged=0;
}
}
void clickTile(GameBoard *g, int row, int col)
{
int i,j;
if( !(*(g->board+row)+col)->isVisible && !(*(g->board+row)+col)->isFlagged )
{
if( (*(g->board+row)+col)->isMine)
{
// clicked on mine, oops
(*(g->board+row)+col)->isVisible = TRUE;
g->isMineClicked = TRUE;
}
else
{
if( (*(g->board+row)+col)->numOfMines > 0)
{
(*(g->board+row)+col)->isVisible = TRUE;
g->hiddenTiles--;
}
else
{
// number of îeighbors mines = 0
// call this function for all neighbors
(*(g->board+row)+col)->isVisible = TRUE;
g->hiddenTiles--;
for(i=row-1; i<=row+1; i++)
{
for(j=col-1; j<=col+1; j++)
{
if( i>=0 && i<(g->rows) && j>=0 && j<(g->cols) && !(i==row && j==col) )
clickTile(g, i, j);
}
}
}
}
}
}