Added null progress notifier, optimized CResourceStore::BuildFromDirectory a little

src/Core/Core.pro

@@ -339,4 +339,5 @@ SOURCES += \
     Resource/CResTypeInfo.cpp \
     CompressionUtil.cpp \
     IUIRelay.cpp \
-    GameProject\COpeningBanner.cpp
+    GameProject\COpeningBanner.cpp \
+    IProgressNotifier.cpp

src/Core/GameProject/CResourceStore.cpp

@@ -303,9 +303,9 @@ bool CResourceStore::BuildFromDirectory(bool ShouldGenerateCacheFile)
     for (auto Iter = ResourceList.begin(); Iter != ResourceList.end(); Iter++)
     {
         TString Path = *Iter;
-        TString RelPath = FileUtil::MakeRelative(Path, ResDir);
+        TString RelPath = Path.ChopFront( ResDir.Size() );
 
-        if (FileUtil::IsFile(Path) && Path.GetFileExtension() == "rsmeta")
+        if (FileUtil::IsFile(Path) && Path.EndsWith(".rsmeta"))
         {
             // Determine resource name
             TString DirPath = RelPath.GetFileDirectory();

src/Core/IProgressNotifier.cpp

@@ -0,0 +1,3 @@
+#include "IProgressNotifier.h"
+
+CNullProgressNotifier *gpNullProgress = new CNullProgressNotifier();

src/Core/IProgressNotifier.h

@@ -63,4 +63,14 @@ protected:
     virtual void UpdateProgress(const TString& rkTaskName, const TString& rkStepDesc, float ProgressPercent) = 0;
 };
 
+// Null progress notifier can be passed to functions that require a progress notifier if you don't want to use one.
+class CNullProgressNotifier : public IProgressNotifier
+{
+public:
+    bool ShouldCancel() const { return false; }
+protected:
+    void UpdateProgress(const TString&, const TString&, float) {}
+};
+extern CNullProgressNotifier *gpNullProgress;
+
 #endif // IPROGRESSNOTIFIER_H