📝 check_surroundings

This function checks the surroundings of a map to ensure that all open spaces and player positions are properly enclosed using a flood-fill algorithm.

⚙️ Parameters

Parameter	Type	Description
map	t_map*	A pointer to the map structure containing the map data and temporary flags.

🔁 Returns

Return value	Description
bool	Returns true if all surroundings are valid (properly enclosed), or false if an error or invalid area is detected.

📖 Description

The check_surroundings function iterates through each cell of the map to verify that all empty spaces ('0') and player positions are enclosed and accessible. The function uses a flood-fill algorithm implemented in flood_fill_map to mark visited positions in map->temp_map.

• If the input map is NULL, the function immediately returns false.
• For each cell in the map, it checks if the cell is an empty space ('0') or a valid player position and whether it has already been visited.
• If a cell meets these conditions, the function calls flood_fill_map to recursively mark the connected area. If flood_fill_map fails, an error message is printed and the function returns false.
• The function returns true if all areas are valid and properly enclosed.

💡 Example Usage

t_map map = initialize_map(); // Assume this function sets up the map structure

if (check_surroundings(&map)) {
    printf("All map surroundings are valid!\n");
} else {
    printf("Invalid map surroundings detected.\n");
}