string handling atoi

[anon_42283764]

Hi, stupid newbie

is there an equivalent function that will return the ascii value of a character, in the same was as C/C++ atoi?

I’m finding Unities javascript string handling a bit frustrating, I realize its derived from mono and not javascript, but a page in the script reference detailing the string functions would be a great help.

[Quietus2]

In C, Atoi returned the numerical value of a string, not the ascii code. The equivalent of atoi would be string.ParseInt();

To return the ascii value of a key would be the charCodeAt() method.

[anon_42283764]

your right atoi is the same as ParseInt();

however what I want to do is walk a string, and take the ascii value of each letter which I then want to process as an int

eg

var str=“hellow world”;

for (i=0;i<str.length;i++)
DoStuff((int)str*);*
by the way are

• parseInt*
  and
• toString*
  supported in unity, I’m getting an error?

[Quietus2]

@""

your right atoi is the same as ParseInt();

however what I want to do is walk a string, and take the ascii value of each letter which I then want to process as an int

eg

var str=“hellow world”;

for (i=0;i<str.length;i++)
DoStuff((int)str*);*
[/quote]
That’s certainly easy to do.
[quote]
by the way are

• parseInt*
  and
• toString*
  supported in unity, I’m getting an error?
  [/quote]
  Yes, I use ParseInt quite a bit in my high scores routines where I parse what comes in from PHP and compare it with the current score, etc. So it certainly works.
  * *parseInt(splitScores[splitScores.length - 2].Trim());* *
  I suggest looking over the Mono and .NET docs on MSDN for the string class. There’s lots of goodies in there. Besides the goodies, sometime the compiler chokes when it selects an overload you weren’t expecting and it’s good to what it wants! It might be the source of the error you failed to describe.

[anon_42283764]

Seems two steps are required to perform the cast

first import the mono system libs,then use the convert function

import System;
var ascii = Convert.ToInt32("a"[0]);

[Eric5h5]

Just to note, “import” only imports a namespace to make it easier to type stuff and doesn’t really import any libraries on its own. You can do it in one line like so:

var ascii = System.Convert.ToInt32("a"[0]);

Of course then you have to use “System.Convert” all the time; if you do the import, then all you have to use is “Convert”. This works with everything…for example, if you do “import Debug;” then you can type “Log” instead of “Debug.Log”. The drawback being that your code becomes less portable, since you need that import line or else it won’t work, so you have to keep that in mind when copying pasting into other scripts.

–Eric