C# Splitter on Bluetooth streaming data

Hello Guys

I have a Bluetooth module that is streaming a stream of strings into a Unity application. Similar
to the numo string variable. These are x , y and z from an imu sensor. I am trying to separate the
values into their own x,y.z variables ie: int x , int y and int z.

The code below is what I have done it working on the sample string numo data. But as so as I begin
receiving the stream from the Bluetooth I receive this error.

IndexOutOfRangeException: Index was outside the bounds of the array.

public void fishing()
{
string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
string[] splitted = numo.Split(',');
int[] nums = new int[splitted.Length];
for (int i = 0; i < splitted.Length; i++)
{
nums = int.Parse(splitted);
int x = nums[0];
int y = nums[1];

Debug.Log(x);
Debug.Log(y);

}
}

hope you can help.

 

You are trying to parse an array of strings. int.Parse() expects one single string.

 

Okay how can I make it work if my strings are costly been stream what are the alternative . Hope you can help

 

You need to break down your problem piece by piece. Look at the input data, decide what you need and what you can ignore.

Do you really get a stream of just numbers divided by a comma? How do you know which ones are x, y, z?

Maybe the specification has example code in an other language you could just port.

 

Hell

Hello so I tested the code below is works on this test string it is only when I connect blue tooth do I receive :

error. IndexOutOfRangeException: Index was outside the bounds of the array

string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
string[] splitted = nomi.Split(',');
int[] nums = new int[splitted.Length];
for (int i = 0; i < splitted.Length; i++)
{
nums = int.Parse(splitted);
int x = nums[0];
int y = nums[1];
int z = nums[2];
Debug.Log(x);
Debug.Log(y);
Debug.Log(z);

}

 

I doubt that the code you typed in is the code you used. Copying and pasting it would enable us here in the forum to help you further.

Please look up the documentation for int.Parse(String) (aka Int32.Parse(String)) and read the example code.

 

Code (csharp):

1.  
2.     string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
3.         string[] splitted = numo.Split(',');
4.         int[] nums = new int[splitted.Length];
5.      
6.         for (int i = 0; i < splitted.Length; i++)
7.         {
8.          
9.             nums[I] = int.Parse(splitted[I]);
10.             int x = nums[0];
11.             int y = nums[1];
12.             int z = nums[2];
13.        
14.             Debug.Log(x);
15.             Debug.Log(y);
16.             Debug.Log(z);
17.         }
18.      [CODE/]
19.  
20. This code works but as soon as I connect the Bluetooth. The error. IndexOutOfRangeException: Index was outside the bounds of the array appears. Maybe cause the code works with a fixed string length but the Bluetooth is continuous.
21.  
22. .[/I][/I]

 

Don't type in your code from memory. Copy and paste it. Read the post Using code tags properly (first sticky post in this Scripting forum).

 

Hello

So when I try the code below. This is the error:

FormatException: Input string was not in a correct format.
System.Number.StringToNumber (System.String str, System.Globalization.NumberStyles options, System.Number+NumberBuffer& number, System.Globalization.NumberFormatInfo info, System.Boolean parseDecimal) (at <f2e6809acb14476a81f399aeb800f8f2>:0)

Code (csharp):

1.  
2.  
3.   public void fishing()
4.     {
5.         string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
6.         string[] splitted = numo.Split(',');
7.         int[] nums = new int[splitted.Length];
8.         for (int i = 0; i < splitted.Length; i++)
9.         {
10.             //source of error.
11.             nums[i] = int.Parse(splitted[i], System.Globalization.NumberStyles.AllowLeadingSign);
12.             int x = nums[0];
13.             int y = nums[1];
14.             int z = nums[2];
15.             Debug.Log(x);
16.             Debug.Log(y);
17.             Debug.Log(z);
18.      
19.         }
20.     }
21.  
22.  

I then tried to run the code without making the integer conversion. This is the error:

IndexOutOfRangeException: Index was outside the bounds of the array.

Code (csharp):

1.  
2.  
3.   public void fishing()
4.     {
5.         string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
6.         string[] splitted = numo.Split(',');
7.         int[] nums = new int[splitted.Length];
8.         for (int i = 0; i < splitted.Length; i++)
9.         {
10.             string x = splitted[0];
11.             string y = splitted[1];
12.             string z = splitted[2];
13.             Debug.Log(x);
14.             Debug.Log(y);
15.             Debug.Log(z);
16.    
17.         }
18.     }
19.  
20.  

So as explained I have a string x,y,z,x,y,z,x,y,z coming from a Bluetooth module. I would like to receive the data and set it as different variables.

int x; int y, int z

Hope you can help

 

In your example you're splitting a string of 11 numbers, which isn't divisible by three.

Also if you want to work with groups of 3 ints in your loop you need to increment i by 3 each time and not 1.

Just to say, your second script posted above runs without error, I'm wondering if you meant it to be

Code (CSharp):

1.         string numo = "4,-1,5,7,8,10,5,-4,8,10,-30";
2.         string[] splitted = numo.Split(',');
3.         int[] nums = new int[splitted.Length];
4.         for (int i = 0; i < splitted.Length; i++)
5.         {
6.             string x = splitted[i];
7.             string y = splitted[i+1];
8.             string z = splitted[i+2];
9.             Debug.Log(x);
10.             Debug.Log(y);
11.             Debug.Log(z);
12.  
13.         }

which does produce an error, because of the input string only having 11 elements. If you correct that and increment i by 3 each loop it should work properly.

Also looking back on the earlier posts, and specifically #7; If, when the Bluetooth device is plugged, in it supplies a string with less than 3 elements then that would cause an index out of range error with the code you posted, as you're referencing indices 0,1 and 2.