Trying to index a list, gives error.

Questions & Answers
1

So, I did a void here that is used to change the gameObject’s material:

void ChangeTextureViaTerrain(int xx, int yy)
    {
        float thistile = gM.world[xx + yy * gM.worldWide]; //here
        if (thistile == 2f)
        {
            material = materials[0];
        }
        else
        {
            if (thistile > 0.8f)
            {
                material = materials[2];
            }
            else
            {
                material = materials[1];
            }
        }
    }

So, there is an error where it says //here.
It says:
“ArgumentOutOfRangeException: Argument is out of range.
Parameter name: index”
However, the list HAS the item that is trying to index. Why it doesn’t and gives an error?

2

Changed float thistile = gM.world[xx + yy * gM.worldWide] for float thistile = gM.world.BinarySearch(xx + yy * gM.worldWide) And it works perfectly.