試作

Logger.cs

using System;
using UnityEngine;

public static class L
{
    private const string DefineConditional = "NEVER_DEFINED_SYMBOL";

    #region LogLevel

    public enum LogLevel : byte
    {
        All,
        Verbose,
        Info,
        Debug,
        Warning,
        Error,
        Off,
    }

    public static LogLevel CurrentLogLevel = LogLevel.Debug;

    #endregion

    #region Log

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    private static void LogInternal(LogLevel level, object message)
    {
        if (level < CurrentLogLevel)
        {
            return;
        }
        if (level == LogLevel.Error)
        {
            Debug.LogError(message);
        }
        else if (level == LogLevel.Warning)
        {
            Debug.LogWarning(message);
        }
        else
        {
            Debug.Log(message);
        }
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void V(object message)
    {
        LogInternal(LogLevel.Verbose, message);
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void I(object message)
    {
        LogInternal(LogLevel.Info, message);
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void D(object message)
    {
        LogInternal(LogLevel.Debug, message);
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void W(object message)
    {
        LogInternal(LogLevel.Warning, message);
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void E(object message)
    {
        LogInternal(LogLevel.Error, message);
    }

#if !(UNITY_EDITOR || DEVELOPMENT_BUILD)
    [Conditional(DefineConditional)]
#endif
    public static void Exception(Exception e)
    {
        if (CurrentLogLevel == LogLevel.Off)
        {
            return;
        }
        Debug.LogException(e);
    }

    #endregion
}