koobas.hobune.stream
Returning Multiple Variables From a Function
I'm new to unity and trying to use a Vector2 as an index position for a 2D array. I've done a lot of searching but haven't found a solution yet. I tried something like this
int[,] intArray;
Vector2 pos = new Vector2(7, 6);
intArray[vectToInt(pos)] = 3;
int vectToInt(Vector2 i) {
dualInt j;
j.x = Mathf.RoundToInt (i.x);
j.y = Mathf.RoundToInt (i.y);
return j;
}
public struct dualInt {
public int x;
public int y;
}
to return two integers, but that didn't work. How else could I do it in an efficient way, I was using
intArray[Mathf.RoundToInt (vector2.x), Mathf.RoundToInt (vector2.y)] = int;
but I want something simpler.
$$anonymous$$any things:
You cant set array elements in C# outside a method, you can only initialize the entire array.
A bidimensional need 2 values coma separated not a struct.< br> You need initialize the array before use it.
You aren't quite there. You need the comma separated value, and you returned int ins$$anonymous$$d of dual int. Fixing your method:
int[,] intArray;
Vector2 pos = new Vector2(7, 6);
intArray[vectToInt(pos).x, vectToInt(pos).y] = 3;
dualint vectToInt(Vector2 i) {
dualInt j;
j.x = $$anonymous$$athf.RoundToInt (i.x);
j.y = $$anonymous$$athf.RoundToInt (i.y);
return j;
}
public struct dualInt {
public int x;
public int y;
}
I created a struct similar to dualint in james2238's more recent post, which I named int2. It has extension methods for 2D arrays to use the int2 as an index, as well as easy conversion from Vector2's.
