Instantiate() Issues

Unity Engine
1

Hello All! Unity newbie here, I could use some help with a script I am making. I am working on generating a visible grid to better help me identify where the actual tiles are for my map. I have this very simple method:

// Generates grid for the map
void GenGrid()
{
// Initialize grid tiles array
gridSprites = new GameObject[iMapWidth, iMapHeight];

// Traverse tile rows
for (int x = 0; x < iMapWidth; x++)
{
for (int y = 0; y < iMapHeight; y++)
{
// Instantiate a grid tile sprite at this position on the map
gridSprites[x, y] = (GameObject)Instantiate(Resources.Load(“GridTile”) );
gridSprites[x, y].transform.position = new Vector3((x * iTileWidth) / 100, (y * iTileHeight) / 100, 0);
}
}
}

All works fine up until I try to position the game object. See, my prefab has a default position of 0, 0, 0. So all of the clones get generated at 0, 0, 0. And obviously I want to line them up next to each to form a grid. But even though I am setting position, they in game they are still located at 0, 0, 0. Why is this?

2

Are iTileWidth and iTileHeight integers? What are their values?

int x = 2;
int iTileWidth = 30;
// This line will print "(x * iTileWidth) / 100 is equal to: 0"
Debug.Log("(x * iTileWidth) / 100 is equal to: " + ((x * iTileWidth) / 100));

EDIT: Try dividing by 100f, instead of 100 if this is the case.

3

What are the dimensions of these tiles? I’m not sure I understand the “/ 100” on the X and Y components of the new position…

Jeff

4

Nothing obvious jumping out at me. Double-check that iTileWidth and iTileHeight are set to what you expect. Why is position divided by 100?

You can also pass a position directly to the Instantiate function, if that works any better.

5

Thank you! Issue resolved. iTileWidth and iTileHeight were integers. Position was being divided by 100 to turn from whole number to decimal. So instead of a position of x:32 I get x: 0.32, which is where the tile actually needs to be.

void GenGrid()
{
// Initialize grid tiles array
gridSprites = new GameObject[iMapWidth, iMapHeight];

// Traverse tile rows
for (int x = 0; x < iMapWidth; x++)
{
// Traverse tile columns
for (int y = 0; y < iMapHeight; y++)
{
// Instantiate a grid tile sprite at this position on the map
gridSprites[x, y] = (GameObject)Instantiate(
Resources.Load(“GridTile”),
new Vector3((x * iTileWidth) / 100f, (y * iTileHeight) / 100f, 0),
Quaternion.identity);
// Set the grid sprite as a child of the map
gridSprites[x, y].transform.parent = gameObject.transform;
// Set the grid sprite name
gridSprites[x, y].name = “Grid - X:” + x + " Y:" + y;
}
}
}