*增加游戏目录选择

3 files changed, 73 insertions, 3 deletions

diff --git a/src/libjin/Common/je_common.h b/src/libjin/Common/je_common.h
index 67505c1..31b67c6 100644
--- a/src/libjin/Common/je_common.h
+++ b/src/libjin/Common/je_common.h
@@ -1,6 +1,7 @@
 #ifndef __JE_COMMON_H__
 #define __JE_COMMON_H__
 
+#include "je_exception.h"
 #include "je_array.hpp"
 
 #endif
\ No newline at end of file
diff --git a/src/libjin/Common/je_exception.cpp b/src/libjin/Common/je_exception.cpp
index e69de29..5489a42 100644
--- a/src/libjin/Common/je_exception.cpp
+++ b/src/libjin/Common/je_exception.cpp
@@ -0,0 +1,46 @@
+#include <stdarg.h>
+
+#include "je_exception.h"
+
+namespace JinEngine
+{
+
+    Exception::Exception(const char *fmt, ...)
+    {
+        va_list args;
+        int size_buffer = 256, size_out;
+        char *buffer;
+        while (true)
+        {
+            buffer = new char[size_buffer];
+            memset(buffer, 0, size_buffer);
+
+            va_start(args, fmt);
+            size_out = vsnprintf(buffer, size_buffer, fmt, args);
+            va_end(args);
+
+            // see http://perfec.to/vsnprintf/pasprintf.c
+            // if size_out ...
+            //      == -1             --> output was truncated
+            //      == size_buffer    --> output was truncated
+            //      == size_buffer-1  --> ambiguous, /may/ have been truncated
+            //       > size_buffer    --> output was truncated, and size_out
+            //                            bytes would have been written
+            if (size_out == size_buffer || size_out == -1 || size_out == size_buffer - 1)
+                size_buffer *= 2;
+            else if (size_out > size_buffer)
+                size_buffer = size_out + 2; // to avoid the ambiguous case
+            else
+                break;
+
+            delete[] buffer;
+        }
+        mMessage = std::string(buffer);
+        delete[] buffer;
+    }
+
+    Exception::~Exception() throw()
+    {
+    }
+
+} // namespace JinEngine
\ No newline at end of file
diff --git a/src/libjin/Common/je_exception.h b/src/libjin/Common/je_exception.h
index cf11f51..c319ebd 100644
--- a/src/libjin/Common/je_exception.h
+++ b/src/libjin/Common/je_exception.h
@@ -2,18 +2,41 @@
 #define __JE_EXCEPTION_H__
 
 #include <exception>
+#include <string>
 
 namespace JinEngine
 {
 
     ///
-    /// Built-in exception class.
+    /// Jin Exception.
     ///
     class Exception : public std::exception
     {
     public:
-        Exception();
-        const char* what() const throw();
+
+        /// 
+        /// Creates a new Exception according to printf-rules.
+        ///
+        /// @param fmt The format string (see printf).
+        /// 
+        Exception(const char *fmt, ...);
+        virtual ~Exception() throw();
+
+        /// 
+        /// Returns a string containing reason for the exception.
+        /// 
+        /// @return A description of the exception.
+        /// 
+        inline virtual const char *what() const throw()
+        {
+            return mMessage.c_str();
+        }
+
+    private:
+        ///
+        /// Exception message.
+        ///
+        std::string mMessage;
 
     };