[Unity] ScriptableObjectを使ってModelを作る ref: http://qiita.com/edo_m18/items/d09ccd8f167e6b1ecf71

file0.txt

using UnityEngine;

public class SampleModel : ScriptableObject {

    public delegate void ChangePointHandler(int point);
    public event ChangePointHandler OnChangePoint;


    public int Point { get; set; }

    void OnEnable() {
        Debug.Log("////////// Initialize model //////////");
        Point = 0;
    }

    public void AddPoint(int point) {
        Point += point;
        if (OnChangePoint != null) {
            OnChangePoint(Point);
        }
    }

    public void ShowPoint() {
        Debug.Log(Point);
    }
}

file1.txt

using UnityEngine;
using UnityEditor;

[InitializeOnLoad]
public class CreateScriptAsset {
    static CreateScriptAsset() {
        // SampleModelを生成
        SampleModel model = ScriptableObject.CreateInstance<SampleModel>();

        // ユニークなパスを生成する
        // （多分、重複する名前がある場合、自動的に(2)とかつけてくれるやつ）
        string path = AssetDatabase.GenerateUniqueAssetPath("Assets/Model/" + typeof(SampleModel) + ".asset");
        Debug.Log("Path: " + path);

        // 該当パスにオブジェクトアセットを生成
        AssetDatabase.CreateAsset(model, path);

        // 未保存のアセットをアセットデータベースに保存
        AssetDatabase.SaveAssets();
    }
}

file2.txt

using UnityEngine;
using System.Collections;

public class ModelGetter : MonoBehaviour {

    public SampleModel model;

    void Start() {
        model.OnChangePoint += OnChange;
    }

    // Update is called once per frame
    void Update () {
        if (Input.GetMouseButtonDown(0)) {
            model.AddPoint(1);
            // model.ShowPoint();

            if (model.Point > 10) {
                model.Point = 5;
                Application.LoadLevel("Sub");
            }
        }
    }

    void OnChange(int point) {
        Debug.Log("Event was receirved: " + point);
    }
}