Send message from Java to C#

Question

Hi There,

I'm trying to send a message from Java to C#, but I cant get the right coding for C#.

In JavaScript I do:

function BlastCollided () {
beam.SendMessage ("DoExplode");
}

How do I call the "DoExplode" in C#?

I need to tell the script to

Explode();

I tried this example from Unity Scripting reference, but got the following errors:

A get or set accessor expected

`Detonator.DoExplode': property or indexer cannot have void type

Anyone care to sooth this pain of mine?

EDIT: If for example I want to destroy my object when the receivers gets the message in Java, I would have done the following:

To send the message from object A:

    if input.GetButtonUp("Fire1") {
  ObjectB.sendmessage("DoExplode");

}

To Receive the message from Object A and do something

function DoExplode {
 MyObject.Destroy();

}

But now, I want to do exactly the same, but only in C#

Answer 1

Best Answer

Answer by Statement · Apr 04, 2011 at 10:26 PM

// In C#

void BlastCollided () {
    beam.SendMessage ("DoExplode");
}

// Full C# Example script:

using UnityEngine;
class Example : MonoBehaviour {
    public GameObject beam; // Or public Component beam;, or what type you have
    void BlastCollided () {
        if (!beam) print("You have forgot to set 'beam' variable");

     beam.SendMessage ("DoExplode");
 }

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Henri 1 · Apr 05, 2011 at 06:31 AM 0

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The Send $$anonymous$$essage Works fine, you can call the message anything you want, if you want to receive the message in Java, you use:

function Anything () { do.something; }

But does not work in C#

Henri 1 · Apr 05, 2011 at 06:32 AM 0

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Does not matter which component it is, I'm only trying to receive a message in C# and call any action

Statement · Apr 05, 2011 at 11:36 AM 0

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Sorry, misunderstood you. Check out my update and get back to me if you still need help.

Henri 1 · Apr 06, 2011 at 06:24 AM 0

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Thanks Statement, but isn't that script to send a message from C#? I allready sent a message called "DoExplode" from Java, I only need to receive the message in C# and activate the required function. Any chance you could take a look at the following question as well? http://answers.unity3d.com/questions/50447/resize-cylinder-to-hit-distance-collision-detection-and-raycast-hit-distance-pr

Henri 1 · Dec 13, 2011 at 09:24 PM 1

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Hi @Statement, I eventually figured it out, and you were correct :blush with akward feeling:... I used in Java:"Send$$anonymous$$essage ("doExplode")" and in C# "void doExplode()"

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Answer 2

I'm trying to do the oposite thing - to send message from C# to Js. I have Player with javascript, which opens door in game with raycast, when player meets enemy, raycast lenght is set to 0, when he kills enemy, my enemy's C# script would destroy enemy gameObject and set players raycast back to 5. That would be a simple function in player's script :

function EnableRay () {
 rayCastLength += 5; 
}

My enemy script looks like this :

using UnityEngine; using System.Collections;

public class NewRobotLives : MonoBehaviour { //Fields public int lives = 3; public ParticleEmitter blood;

 //Trigger Function
 void OnTriggerEnter(Collider col)
 {
     if (col.tag == "bullet")
     {
         Debug.Log("Collision with bullet detected");

         //Decrease Life and destroy bullet
         lives -= 1;
         Destroy(col.gameObject);
     }

     //Check if we destroy our enemy
     if (DidEnemyDie())  {     
         Destroy(gameObject);
         Instantiate (blood, transform.position, transform.rotation);
         iTweenEvent.GetEvent(GameObject.FindWithTag("PlayerTag"), "Shake").Play();

      // here I should call EnableRay( )  in player' s script

     }


 }

 //Function return true if life &lt; 0
 bool DidEnemyDie()
 {
     return lives &lt;= 0 ? true : false;
 }

}

Send message from Java to C#

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