Passing a struct from one object to another

Thanks for looking. I have a script that has a struct and data settings and I'm trying to pass the settings to another script on another object.

I've read that I need to refer to the original script for the struct, so I'm trying just that. Once the variable is created, I should be able to call the GetHoverOverSettings() method to populate the fields.

First Script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class SoldierScript : MonoBehaviour
6. {
7.  
8.     public struct HoverOverSettings
9.     {
10.         public int hoverOverSegments;
11.         public float lineThickness;
12.         public float xRadius;
13.         public float zRadius;
14.         public float yHeight;
15.     };
16.  
17.     public HoverOverSettings hoverOverSettings = new HoverOverSettings();
18.  
19.     void Start()
20.     {
21.         SethoverOverSettings();
22.  
23.     }
24.  
25.     public void SethoverOverSettings()
26.     {
27.  
28.         hoverOverSettings.hoverOverSegments = 30;
29.         hoverOverSettings.lineThickness = 0.2f;
30.         hoverOverSettings.xRadius = 0.2f;
31.         hoverOverSettings.zRadius = 0.2f;
32.         hoverOverSettings.yHeight = 0.3f;
33.     }
34.  
35.     public HoverOverSettings GetHoverOverSettings()
36.     {
37.  
38.         return hoverOverSettings;
39.     }
40. }

The second and the GameObject had

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. //[RequireComponent(typeof(LineRenderer))]
5. public class LineR : MonoBehaviour
6. {
7.     public GameObject parentObject;
8.  
9.     void Start()
10.     {
11.         parentObject.GetComponent<SoldierScript>.HoverOverSettings hoverOverSettings = new parentObject.GetComponent<SoldierScript>.HoverOverSettings();
12.     }
13. }

the first script in it:

 

Code (CSharp):

1. parentObject.GetComponent<SoldierScript>().hoverOverSettings = new SoldierScript.HoverOverSettings();

 

Thank you!

 

Sorry but this line makes no sense ^^

It seems you have trouble understanding the difference between a class / type and an instance of that class / type. Your "HoverOverSettings" struct is a nested type of your "SoldierScript" class. You don't need any instance of your SoldierScript in order to use the nested type. To declare a local variable of your struct type you just use

SoldierScript.HoverOverSettings yourVariableName;

Note that you can't really pass an instance of a struct around. Well it's possible when you have a method with a ref parameter. In all other cases structs are always copied. I'm not sure what the line I quoted should actually do. It looks like you just create a new empty struct instance locally. If you want to copy the struct from the SoldierScript instance you would do

Code (CSharp):

1. SoldierScript.HoverOverSettings hoverOverSettings =parentObject.GetComponent<SoldierScript>.GetHoverOverSettings();

or shorter with a local var:

Code (CSharp):

1. var hoverOverSettings = parentObject.GetComponent<SoldierScript>.GetHoverOverSettings();

Keep in mind that this variable will be a copy of the instance in your SoldierScript.

 

Now that did work. How come I didn't have to refer to the SoldierScript.HoverOverSettings with a parentObject.GetComponent? I thought I would have to point to it.

THANKS!

Code (CSharp):

1.     void Start()
2.     {
3.  
4.         SoldierScript.HoverOverSettings hoverOverSettings;
5.  
6.         hoverOverSettings = parentObject.GetComponent<SoldierScript>().GetHoverOverSettings();
7.  
8.         Debug.Log(hoverOverSettings.xRadius);
9.  
10.     }