Float precision issue

Hi there,

I'm working on a 2D game project for school. It is in Pokemon-style (topview, tile system).
And now I've got a problem with the floats of the x and y coordinates of the tiles. When I layed out the tiles the x and y coordinates were just fine (for example x: 0.32, y: 0.64 - I've got 32x32 tiles). But after a few test runs of the game there were gaps between some tiles. The x and y coordinates got more and more changed because of the float precision issue. I've already googled how to set a global (in the whole game) float precision or how to prevent the values from changing but I didnt find anything useful. I also wrote a script that rounds the coordinates (in the start function) and applied it on each tile, but even then the gaps appeared. I also tried to put the function into the Update function, but also there the gaps appeared. And now I totally ran out of ideas how I could fix this.

Thanks for your help!
otaku445

 

Can't help you without seeing the source.

 

The problem isnt some script I just tried to fix the problem with a script. The problem is that the float values for the x and y coordinates change everytime i run the game. So if I have for example 0.32 for x it is 0.3200001 at the second run and 0.3200004 at the fourth and so on. So it moves slighty until you can see gaps.
Source code for the script with which I tried to solve this:

Code (csharp):

1. transform.position = new Vector3(Mathf.Round(transform.position.x * 100.0f) / 100.0f, Mathf.Round(transform.position.y * 100.0f) / 100.0f, transform.position.z);

otaku445

 

Could you send me a full repro case? That snipped isn't enough.