Puzzling question

Hello to the Unity community first time poster here! I have been going through the Walker Boys tutorials learning Unity development and I am kind of stumped as to why this is happening. I am on the tool development tutorial and during step 6 of the ani tool spreadsheet creating a 2d array offset and this is my code(C#) which works fine.;

public class step62darrayoffset : MonoBehaviour
{

public int column; //u coordinate
public int row; //v coordinate
public float framesPerSecond = 8.0f;


void Update()
{
int index = Mathf.RoundToInt(Time.time * framesPerSecond); //Time control FPS.

index = index % (column * row); //End of the row(modulated).
Vector2 size = new Vector2(1.0f / column, 1.0f / row); //scale.


int u = index % column;
int v = index / column;

Vector2 offset = new Vector2(u * size.x, (1 - size.y) - (v * size.y)); //offset.
print(index);
renderer.material.mainTextureOffset = offset; //texture offset.
renderer.material.mainTextureScale = size; //texture scale.

}
}

But when i move the (u) and (v) variables to initialize them just after the index initialization when i run the animation it works for a few frames and then changes to a bunch of lines on the animation spreadsheet, like its changing the scale or something. Now i don't mind but i usually like to initialize variables at the top if i can and don't see why it would make a difference.

Any explanation to this issue would be much appreciated!

 

bump! nobody?

 

first off, [code ] [/code ] tags make things much more readable (and gives line numbers )

Code (csharp):

1.  
2. void Update()
3. {
4.     int index = Mathf.RoundToInt(Time.time * framesPerSecond); //Time control FPS.
5.  
6.     index = index % (column * row); //End of the row(modulated).
7.     Vector2 size = new Vector2(1.0f / column, 1.0f / row); //scale.
8.  
9.  
10.     int u = index % column;
11.     int v = index / column;
12.  
13.     Vector2 offset = new Vector2(u * size.x, (1 - size.y) - (v * size.y)); //offset.
14.     print(index);
15.     renderer.material.mainTextureOffset = offset; //texture offset.
16.     renderer.material.mainTextureScale = size; //texture scale.
17.  
18. }
19.  

do you move lines 9 and 10 to just after line 3? (i.e. before line 5 where the index is updated...)

 

Yes. And thank you for replying and the tip on the /code i will use that next time.

 

And i think you answered my question thanks!