Strings

Unity Engine
1

I’m having issues with a simple little thing:

var f : float;
var s : String;
var f = parseFloat(s);

If s (which is input by the user) contains something other than a number an error occurs and Unity halts execution.

This isn’t what happens in JavaScript, and it’s really really annoying.

So:

  1. Is there documentation for how UnityScript String instances work somewhere?

  2. Any ideas on this specific problem beyond manually checking all the characters in s?

2

You need to catch the exception thrown by parseFloat():

var s : String;
var f : float;

function Start() {
	try {
		f = parseFloat(s);
	} catch (e) {
		Debug.Log("Couldn't parse s as a float");
	}	
}
3

not sure if this will help but there’s also inputString…

http://unity3d.com/Documentation/ScriptReference/Input-inputString.html

[edit: sorry - that really doesn’t address your q. just thought it may help with what you’re going for…]

4

Ah – exceptions work … better than what I was doing :slight_smile: