Unity Editor: Adds context menu item to create a template Scriptable Wizard

CreateScriptableWizard.cs

using UnityEngine;
using UnityEditor;
using System;
using System.IO;
using System.Text;

public class CreateScriptableWizard{

    [MenuItem("Assets/Create/C# Scriptable Wizard",false,105)]
    static void Create(){
        
        //this works for right clicking in the Project window
        var path=AssetDatabase.GetAssetPath(Selection.activeObject);
        if(!Directory.Exists(path)){
            Debug.LogErrorFormat("{0} is not a valid path!",path);
            return;
        }
        path=EditorUtility.SaveFilePanel("Save Scriptable Wizard",path,"MyScriptableWizard.cs","cs");
        if(path.Length==0) return;//they clicked cancel
        var fname=Path.GetFileNameWithoutExtension(path);
        using (StreamWriter outFile = new StreamWriter(path)){
            int tabIndex=0;
            void Tab(){
                for(int i=0;i<tabIndex;++i){
                    outFile.Write("\t");
                }
            }
            void WriteLine(string line){
                Tab();
                outFile.WriteLine(line);
            }
            WriteLine("using UnityEngine;");
            WriteLine("using UnityEditor;");
            WriteLine("public class "+fname+" : ScriptableWizard {");
            ++tabIndex;
            WriteLine("");
            WriteLine("[MenuItem(\"GameObject/"+fname+"\")]");
            WriteLine("static void CreateWizard(){");
            ++tabIndex;
            WriteLine("ScriptableWizard.DisplayWizard<"+fname+">(\"Wizard Title Here\",\"Create Button Text Here\",\"Apply Button Text Here\");");
            WriteLine("//If you don't want to use the secondary button simply leave it out:");
            WriteLine("//ScriptableWizard.DisplayWizard<"+fname+">(\"Wizard Title Here\",\"Create Button Text Here\");");
            --tabIndex;
            WriteLine("}");
            
            WriteLine("");
            WriteLine("// Called when the Create button is clicked. The window is automatically closed after this.");
            WriteLine("void OnWizardCreate()");
            WriteLine("{");
            ++tabIndex;
            --tabIndex;
            WriteLine("}");
            WriteLine("");
            WriteLine("//Called every Editor frame");
            WriteLine("void OnWizardUpdate()");
            ++tabIndex;
            WriteLine("{");
            
            WriteLine("//you can show messages in the Window by assigning to these properties:");
            WriteLine("//this.errorString=\"Some Error!\";");
            WriteLine("//this.helpString=\"Some Info.\";");
            WriteLine("//You can deactivate the Create button by changing this bool");
            WriteLine("//this.isValid=false;");
            WriteLine("//You can change the ");
            --tabIndex;
            WriteLine("}");
            WriteLine("");
            WriteLine("//When the user presses the \"Apply\" button OnWizardOtherButton is called.");
            WriteLine("void OnWizardOtherButton()");
            WriteLine("{");

            
            WriteLine("}");
            --tabIndex;
            WriteLine("}");
        }
        AssetDatabase.Refresh();
    }
}