import c# into js script...

Unity Engine
1

Hi guys,
this is my first post and my first game in unity… I already made the script running in javascript but now I have to translate it into c# to use the dll!

I created a C# file that import and process the contents of the dll…

Is there a way to pass values from C# to js or import c# script in the js file? or do I have completely rewrite the script?

I’m trying to rewrite it but I would be more difficult than I thought …
someone could help me? :sweat_smile:

Thanks for the help, Barbara

2

importing isn’t required as all scripts in a unity project are within the same namespace.

all you have to do is ensure that the c# script is in a folder that is part of an earlier build step, you can check out the manual, it has an advanced topic entry on the build order etc

3

thanks for the speed in response …

both files are in the same folder and are associated with the same subject …
the script in c# that read the .dll file is the follows :

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices;

public class dllCsharp : MonoBehaviour
{
 [DllImport ("testDLL", CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]
 private static extern int Initialize(int width, int height);

 [DllImport ("testDLL", CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]
 private static extern int IsNewHolePresent();

 [DllImport ("testDLL", CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]
 private static extern int GetHoleXCoord(int eventID);

 [DllImport ("testDLL", CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]
 private static extern int GetHoleYCoord(int eventID);

 void Awake ()
 {
  print("inizializzazione : "+Initialize  (Screen.width, Screen.height));
 }

 public int eventID = 0;
 public int XCoord = 0;
 public int YCoord = 0;

 void Update () {
   if(eventID !=0)
   {
    XCoord = GetHoleXCoord(eventID);
    YCoord = GetHoleYCoord(eventID);
   }
}

}

but if I call the variables, eventID, XCoord, YCoord inside the other script js variables that do not recognize me …

I probably forgot some passage…

Thanks Barbara

4

they can not be in the same folder.
as mentioned, the C# one needs to be in a folder thats compiled earlier.
If they are compiled in the same step they don’t exist for other languages than their own

I commonly put them into the Plugins folder which is the first one to be compiled in a project, cause “binding code” is by me handled the same way as real 3rd party API etc

5

Edit: obviously there is no hope beating dreamora :stuck_out_tongue:

It’s not possible for a JS and a C# script to work together like that when they are in the same directory.

You will either have to move the C# script to a directory that makes it compile before the JS script (Standard Assets/, for example), or perform all communication through SendMessage calls.

6

ok that’s right, Thanks…

I have other two questions :smile: :

Now the c# is in the PlugIn directory,it is run once or every frame? (DLL sends me N values, all the time…)

How reference the variables in js?
c# sending a messagge to js with OSC for example? or there are other methods?

thank you very much… Barbara

7

as any script its run when you tell it to run and assign it. otherwise it won’t :slight_smile:
The plugins folder has no impact on how it works, only on when its compiled and thus what is able to use it

as for js using the variables: you can just get the component and access its public variables as if it were a js script

8

I’m very very sorry but I tried to write three methods to return the values in c #…

void Update () {
  getEventID();
  getXCoord();
  getYCoord();
}
public int getEventID(){
 return IsNewHolePresent();
}
public int getXCoord(){
 return GetHoleXCoord(eventID);
}
public int getYCoord(){
 return GetHoleYCoord(eventID);
}

But as before, when I call in js getXCoord() appears this error :

Unknown identifier: 'getXCoord'.

uff :? :? :? :? :

9

Hi all,
I tried to use sendMessage from c# to js but I’ve some problem…

the code of c# is:

public int eventID = 0;
public int XCoord = 0;
public int YCoord = 0;

void Update () {
 eventID = IsNewHolePresent();
 XCoord = GetHoleXCoord(eventID);
 YCoord =  GetHoleYCoord(eventID);
 
 gameObject.SendMessage ("getEventID",eventID);
 gameObject.SendMessage ("getXCoord",XCoord);
 gameObject.SendMessage ("getYCoord",YCoord,);
}

and the code in js :

function getEventID(eventID : int){
  return eventID;
}

but how i can use the methods for receive the variable?

is there an example that use sendmessage from c# to js?
please help me…I’m really in trouble… :sweat_smile: