1

Is there a way to find out an array index when you click on a game object that is stored in that array? I'm not interested in the value in this case just it's index.

2

If you have access to both the game object and the array in which it's stored, you should be able to search the array for the game object in question; this will give you the corresponding index.

If that doesn't answer your question, perhaps you could provide some more information about the problem.

4

Here's a C# method (untested) that should return the j & k of the object you are searching for:

bool FindIndicesOfObject(GameObject objectToLookFor, out int j, out int k)
{
    for (j = 0; j < blockRow; j++)
    {
        for (k = 0; k < blockCol; k++)
        {
            // Is this the one?
            if (blockLocations[j,k] == objectToLookFor)
            {
                return true;
            }
        }
    }
    j = k = -1;
    return false;
}

You would call it with code that looks something like this

int jFound;
int kFound;
if ( FindIndicesOfObject(objectClickedOn, out jFound, out kFound) )
{
   // do something with jFound & kFound
}

First of course you need to know which GameObject was clicked on. I'm assuming you know how to do that; if not, there have been other questions asked on that topic, for instance this one.

3

Yea, I can't use findbytag or something to that extent. I'm generating a 6*7 2d array equaling 42 random blocks from 5 different prefabs so, name and tag are there multiple times. Here is my code that generates my blocks so you can see what I'm doing. This is why I'm having a hard time figuring out how to find what array index the object I'm clicking on is in so I can start to compare it to blocks around it for matches.

    void Start()
{
    // Instantiate game blocks and load them in array for later
    for (int j = 0; j < blockRow; j++)
    {
        for (int k = 0; k < blockCol; k++)
        {
            // Setup vector3 for our block
            prefabPosition = (Vector3)blockLocations[index];

            // Setup random number for block colors and create block
            System.Random randomNumber = new System.Random();
            blockColor = randomNumber.Next(0, 5);
            Thread.Sleep(rndDelay);

            switch (blockColor)
            {
                case 0:
                    blocks[j, k] = (GameObject)Instantiate(BlueBlockPrefab, prefabPosition, Quaternion.identity);
                    break;
                case 1:
                    blocks[j, k] = (GameObject)Instantiate(RedBlockPrefab, prefabPosition, Quaternion.identity);
                    break;
                case 2:
                    blocks[j, k] = (GameObject)Instantiate(OrangeBlockPrefab, prefabPosition, Quaternion.identity);
                    break;
                case 3:
                    blocks[j, k] = (GameObject)Instantiate(GreenBlockPrefab, prefabPosition, Quaternion.identity);
                    break;
                case 4:
                    blocks[j, k] = (GameObject)Instantiate(PurpleBlockPrefab, prefabPosition, Quaternion.identity);
                    break;
            }
            // Go to next value in coordinates array
            index++;
        }
    }
}