From 32f91125e9375827ec7fca1990f393a3f756286e Mon Sep 17 00:00:00 2001
From: Kiritow <1362050620@qq.com>
Date: Fri, 24 Mar 2017 13:50:48 +0800
Subject: [PATCH] Add LogSystem

---
 MiniEngine.cpp | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 MiniEngine.h   | 10 ++++++++++
 2 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/MiniEngine.cpp b/MiniEngine.cpp
index a2b4010..00fcafa 100644
--- a/MiniEngine.cpp
+++ b/MiniEngine.cpp
@@ -573,7 +573,7 @@ namespace MiniEngine
 		font.reset(temp, TTF_CloseFont);
 		return 0;
 	}
-	
+
 	bool Font::isReady()
 	{
 		return (font.get() != nullptr);
@@ -635,6 +635,54 @@ namespace MiniEngine
 		return rnd.render(surf);
 	}
 
+	void LogSystem::d(const char* fmt,...)
+	{
+        va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_DEBUG,fmt,ap);
+	    va_end(ap);
+	}
+
+	void LogSystem::v(const char* fmt,...)
+	{
+	    va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_VERBOSE,fmt,ap);
+	    va_end(ap);
+	}
+
+	void LogSystem::e(const char* fmt,...)
+	{
+	    va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_ERROR,fmt,ap);
+	    va_end(ap);
+	}
+
+	void LogSystem::i(const char* fmt,...)
+	{
+	    va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_INFO,fmt,ap);
+	    va_end(ap);
+	}
+
+	void LogSystem::w(const char* fmt,...)
+	{
+	    va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_WARN,fmt,ap);
+	    va_end(ap);
+	}
+
+	void LogSystem::critical(const char* fmt,...)
+	{
+	    va_list ap;
+	    va_start(ap,fmt);
+	    SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION,SDL_LOG_PRIORITY_CRITICAL,fmt,ap);
+	    va_end(ap);
+	}
+
 	int SDLSystem::SDLInit()
 	{
 		return SDL_Init(SDL_INIT_EVERYTHING);
diff --git a/MiniEngine.h b/MiniEngine.h
index c296c30..fec9a0c 100644
--- a/MiniEngine.h
+++ b/MiniEngine.h
@@ -236,6 +236,16 @@ namespace MiniEngine
 	enum class Platform { Unknown,Windows,MacOS,Linux,iOS,Android };
 	enum class PowerState { Unknown,OnBattery,NoBattery,Charging,Charged };
 
+	class LogSystem
+	{
+	    static void v(const char* fmt,...);/// Verbose
+	    static void d(const char* fmt,...);/// Debug
+	    static void i(const char* fmt,...);/// Information
+	    static void w(const char* fmt,...);/// Warning
+	    static void e(const char* fmt,...);/// Error
+	    static void critical(const char* fmt,...);/// Critical
+	};
+
 	class SDLSystem
 	{
 	public: