SendMessage , how can i send two parameter

Questions & Answers
1

i made a function needs two parameter (damage : float , mod : float) when i made from another script : avatar.SendMessage(16,1) gives error. it tell me send message sends one parameter , function needs two. how can i send two parameters , srry for my eng. thanks

4

Actually, the SendMessage function takes 1 argument, but that argument could be an array. So just make a temporary object array, fill it with all your values, and fire it away.

string a = "abc";
string b = "def";
string c = "ghi";
string d = "jkl";

private void Start()
{
    object[] tempStorage = new object[4];
    tempStorage[0] = a;
    tempStorage[1] = b;
    tempStorage[2] = c;
    tempStorage[3] = d;

    SendMessage("MessageRecieved", tempStorage);
}
2

You cant. Thats been my experience too.

As the "SendMessage" reference says here:

http://unity3d.com/support/documentation/ScriptReference/Component.SendMessage.html

function SendMessage 
(methodName : string, value : object = null, options : SendMessageOptions = SendMessageOptions.RequireReceiver) : void

methodName is the "function" you want to call on everyobject.

object is the value (ONE object)

BUT, you are not restricted to send a simple object (like integer). You can create your own "class/structure/object" and pass that one along as an object.

So make your own "package" of values you need to broadcast. Init that object and then send it.

3

Sorry to answer an already answered question and it being so delayed, but you can send multiple parameters with a sendmessage in a sense. The way i have been doing it is make the function you need take a Vector2 argument in your case since you have 2 floats and then simply call Sendmessage and pass it a new vector2 with the floats u want to pass.

Example in C#:

Reciever: 

`


private void AdjustHealth(Vector2 damageMod)
{
   // Break the vector 2 into two floats
   float damage = damageMod.x;
   float mod = damageMod.y;


// Do your code
}
`

Sender:

`


// Or however you trigger your sendmessage
void OnTriggerEnter(Collider other)
{
   other.SendMessage("AdjustHealth", new Vector2(16,1));


}
`

Again sorry for late answer just trying to help out =P

Note: u can also do this with vector3 to send 3 parameters.

5

Like @BerggreenDK said, you could use a Struct, a Class, an Object to have multiple params.
Here is an exemple with a Struct :

public class Myclass : MonoBehaviour 
{
    public struct Arguments 
    {
        public float someFloat;
        public Vector3 someVector3;
        public Arguments(float someFloat, Vector3 someVector3) 
        {
            this.someFloat = someFloat;
            this.someVector3 = someVector3;
        }
    }

    public void DoSomething (Arguments args) 
    {
        // Do whatever with args.someFloat and args.someVector3
    }
}

Usage :

gameObject.sendMessage ("DoSomething", new Myclass.Arguments (3f, transform.position));