using System;
using System.Reflection;
using UnityEditor;

[InitializeOnLoad]
public static class GameViewScaleFixer
{
    private static Assembly     m_assembly          = Assembly.Load( "UnityEditor.dll" );
    private static Type         m_type              = m_assembly.GetType( "UnityEditor.GameView" );
    private static BindingFlags m_bindingAttr       = BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Static;
    private static MethodInfo   m_snapZoomMethod    = m_type.GetMethod( "SnapZoom", m_bindingAttr );
    private static object[]     m_parameters        = new object[] { 1f };

    static GameViewScaleFixer()
    {
        EditorApplication.update += OnUpdate;
    }

    private static void OnUpdate()
    {
        var gameView = EditorWindow.GetWindow( m_type );
        if ( gameView == null ) return;
        m_snapZoomMethod.Invoke( gameView, m_parameters );
    }
}