Added b3Printf, b3Warning and b3Error that can be re-routed to custom handlers.

See in src/Bullet3Common/b3Logging.h for details

src/Bullet3Common/b3Logging.cpp

@@ -0,0 +1,69 @@
+#include "b3Logging.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+
+void b3PrintfFuncDefault(const char* msg)
+{
+	printf(msg);
+}
+
+void b3WarningMessageFuncDefault(const char* msg)
+{
+	printf(msg);
+}
+
+void b3ErrorMessageFuncDefault(const char* msg)
+{
+	printf(msg);
+}
+
+static b3PrintfFunc* b3s_printfFunc = b3PrintfFuncDefault;
+static b3WarningMessageFunc* b3s_warningMessageFunc = b3WarningMessageFuncDefault;
+static b3ErrorMessageFunc* b3s_errorMessageFunc = b3ErrorMessageFuncDefault;
+
+
+///The developer can route b3Printf output using their own implementation
+void b3SetCustomPrintfFunc(b3PrintfFunc* printfFunc)
+{
+	b3s_printfFunc = printfFunc;
+}
+void b3SetCustomWarningMessageFunc(b3PrintfFunc* warningMessageFunc)
+{
+	b3s_warningMessageFunc = warningMessageFunc;
+}
+void b3SetCustomErrorMessageFunc(b3PrintfFunc* errorMessageFunc)
+{
+	b3s_errorMessageFunc = errorMessageFunc;
+}
+
+
+void b3OutputPrintfVarArgsInternal(const char *str, ...)
+{
+    char strDebug[1024]={0};
+    va_list argList;
+    va_start(argList, str);
+    vsprintf_s(strDebug,str,argList);
+        (b3s_printfFunc)(strDebug);
+    va_end(argList);    
+}
+void b3OutputWarningMessageVarArgsInternal(const char *str, ...)
+{
+    char strDebug[1024]={0};
+    va_list argList;
+    va_start(argList, str);
+    vsprintf_s(strDebug,str,argList);
+        (b3s_warningMessageFunc)(strDebug);
+    va_end(argList);    
+}
+void b3OutputErrorMessageVarArgsInternal(const char *str, ...)
+{
+    char strDebug[1024]={0};
+    va_list argList;
+    va_start(argList, str);
+    vsprintf_s(strDebug,str,argList);
+        (b3s_errorMessageFunc)(strDebug);
+    va_end(argList);    
+}
+
+