Help with adding to a multidimensional array.

I am making a minesweeper clone and I have an array which holds x and y coordinates along with a int variable acting as a boolean(0=False, 1=True). (Shown below)

Code (CSharp):

1. private int[,,] gridArray;
2. [SerializeField] [Range(10, 50)] private int xGridSize = 10;
3. [SerializeField] [Range(10, 50)] private int yGridSize = 15;
4. private int isBomb;
5. gridArray = new int[xGridSize, yGridSize, isBomb];

If I wanted to say that the tile on coordinates (2, 5) had a bomb I would have the array say: (2, 5, 1) but I am not sure how I would implement this as I am not sure how to add to parts arrays.

I am pretty new with C#

 

The easiest way, without complications, is using single dimension array 1D.

If your filed is 4x5 you use 20,elements in an array.
4 rows and 5 collums.
So cell 2,3 will be 2 + 3*4=14 index in array
Cell 1,1 will be 1 + 1*4 = 5 index in array
Etc.

 

I'd probably do this with a Dictionary. Dictionary can only contain unique "keys", but since every grid cell has a unique coordinate (0,0 1,1 etc) this is not a problem. I'd use the coordinates as the key and a boolean value for the bomb (true means the cells has a bomb:

Code (CSharp):

1.             Dictionary<string, bool> bombGridDictionary = new Dictionary<string, bool>();
2.             int gridWidth = 10;
3.             int gridHeight = 15;
4.  
5.             // initialize grid with no bombs
6.             for (int x = 0; x < gridWidth; x++)
7.             {
8.                 for (int y = 0; y < gridHeight ; y++)
9.                 {
10.                     bombGridDictionary.Add($"{x},{y}", false);
11.                 }
12.             }
13.  
14.             // set a bomb on grid x=0,y=3
15.             bombGridDictionary["0,3"] = true;

 

Using array, and class as data type, you can define different types of field, with same reference.
Yes, you can also use dictionary, 2D vector (x,y) as key and value as data type.
Now data type from class, can hold

Code (CSharp):

1. Class Cell
2. {
3.     bool isBomb ;
4.     enum markedByPlayer ; // that defining what type of marker is used
5.     int numberOfNeighbourBombs ; // optional.
6. }

 

Just wanna point out that the array

Code (CSharp):

1. new int[xGridSize, yGridSize, isBomb]

is actually a three-dimensional array filled with integer values (like a rubics cube where each block is assigned a number). If you want to go ahead with your multi-dimensional array approach, you would probably want an array like this

Code (CSharp):

1. new bool[xGridSize, yGridSize];

and if you want the position (2,5) to be a bomb, you would set

Code (CSharp):

1. gridArray[2,5] = true;

.

Not saying that this is the best approach, but its closest to what you were trying to go for.

 

A multidimensional array (int[,]) is a single block of memory (essentially a matrix). Try with jagged array, is an array-of-arrays, so an int[][] is an array of int[], each of which can be of different lengths and occupy their own block in memory.