Add HUD_MessageBox. Rename isXashFWGS to IsXashFWGS

cl_dll/cdll_int.cpp

@@ -376,7 +376,22 @@ void DLLEXPORT HUD_MobilityInterface( mobile_engfuncs_t *gpMobileEngfuncs )
 	gMobileEngfuncs = gpMobileEngfuncs;
 }
 
-bool isXashFWGS()
+bool HUD_MessageBox( const char *msg )
+{
+	gEngfuncs.Con_Printf( msg ); // just in case
+
+	if( IsXashFWGS() )
+	{
+		gMobileEngfuncs->pfnSys_Warn( msg );
+		return true;
+	}
+
+	// TODO: Load SDL2 and call ShowSimpleMessageBox
+
+	return false;
+}
+
+bool IsXashFWGS()
 {
 	return gMobileEngfuncs != NULL;
 }

cl_dll/cl_util.h

@@ -181,5 +181,6 @@ inline void UnpackRGB( int &r, int &g, int &b, unsigned long ulRGB )\
 
 HSPRITE LoadSprite( const char *pszName );
 
-bool isXashFWGS();
+bool HUD_MessageBox( const char *msg );
+bool IsXashFWGS();
 #endif

cl_dll/hud_redraw.cpp

@@ -235,7 +235,7 @@ int CHud::DrawHudString( int xpos, int ypos, int iMaxX, const char *szIt, int r,
 
 int DrawUtfString( int xpos, int ypos, int iMaxX, const char *szIt, int r, int g, int b )
 {
-	if (isXashFWGS())
+	if (IsXashFWGS())
 	{
 		// xash3d: reset unicode state
 		gEngfuncs.pfnVGUI2DrawCharacterAdditive( 0, 0, 0, 0, 0, 0, 0 );

cl_dll/input_mouse.cpp

@@ -69,7 +69,7 @@ void IN_Shutdown( void )
 void IN_Init( void )
 {
 #ifdef SUPPORT_GOLDSOURCE_INPUT
-	if (isXashFWGS()) {
+	if (IsXashFWGS()) {
 		gEngfuncs.Con_Printf( "FWGS Xash3D input is in use\n" );
 		currentInput = &fwgsInput;
 	} else {