如何让游戏对象将更改应用于脚本中的预制件

Question

Using the Unity 3D editor. I have an object which changes colour when it collides with other objects, this all works, but when changing scene the ball reverts back to its default colour. So i need the ball when changing colour to update the prefab through the script so the other instances of the object in other scenes will also change colour. here is the code i have written for the colour changing:

    using UnityEngine;
using System.Collections;

public class colourpicker : MonoBehaviour {

    public GameObject whiteblock;
    public GameObject limegreentintblock;
    public GameObject cyantintblock;
    public GameObject redtintblock;
    public GameObject yellowtintblock;
    public GameObject player;

    public Material limegreentint;
    public Material redtint;
    public Material cyantint;
    public Material yellowtint;
    public Material white;

    void OnTriggerEnter(Collider other)
    {
        if (other.gameObject == whiteblock) 
        {
            renderer.material = white;
        }
        else if (other.gameObject == redtintblock) 
        {
            renderer.material = redtint;
        }
        else if (other.gameObject == limegreentintblock) 
        {
            renderer.material = limegreentint;
        }
        else if (other.gameObject == cyantintblock) 
        {
            renderer.material = cyantint;
        }
        else if (other.gameObject == yellowtintblock) 
        {
            renderer.material = yellowtint;
        }
    }
}

thanks for any help in advance :)

Answer 1

If I were you I'd make a static class with an Empty Game Object where you can save the state of your object colour. In the Initialize part of you Ball you should check if a variable (that must be static as well) of this static class is different from an Initial state and then assign the colour of the static variable to the Ball object. This LINK teaches you how to implement it (you have to change some stuff to make what you want achieve)

EDIT

In the static class you create something like

public static Material BallMaterial = null;   // or you can assign a Material that will act as InitialState

After that, in your piece of code, when you assign the new Material to the ball, you also assign the new material to BallMaterial and then when you load the new scene you check if the BallMaterial has a different value from its InitialState (or null).