allow changing the "Alternate texture projection" mode at runtime (requires Map_New currently though)

radiant/brushmodule.cpp

@@ -90,6 +90,16 @@ void Brush_registerPreferencesPage()
   PreferencesDialog_addSettingsPage(FreeCaller1<PreferenceGroup&, Brush_constructPage>());
 }
 
+void Brush_unlatchPreferences()
+{
+	if(g_showAlternativeTextureProjectionOption)
+	{
+		g_useAlternativeTextureProjection.useLatched();
+		globalErrorStream() << "Unlatched g_useAlternativeTextureProjection (" << g_useAlternativeTextureProjection.m_value << ")\n";
+		Brush::destroyStatic();
+		Brush::constructStatic(g_useAlternativeTextureProjection.m_value ? eBrushTypeQuake3BP : eBrushTypeQuake3);
+	}
+}
 
 void Brush_Construct(EBrushType type)
 {

radiant/brushmodule.h

@@ -23,5 +23,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #define INCLUDED_BRUSHMODULE_H
 
 void Brush_clipperColourChanged();
+void Brush_unlatchPreferences();
 
 #endif

radiant/map.cpp

@@ -83,6 +83,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "mru.h"
 #include "commands.h"
 #include "autosave.h"
+#include "brushmodule.h"
 
 class NameObserver
 {
@@ -463,6 +464,7 @@ void Map_Free()
   FlushReferences();
 
   g_currentMap = 0;
+  Brush_unlatchPreferences();
 }
 
 class EntityFindByClassname : public scene::Graph::Walker