Fixed pck file path generation on Windows

now when using wine on Linux the Windows version can make pck files
from scratch that Godot can load

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.10)
 project(GodotPckTool)
 
 set(GODOT_PCK_TOOL_VERSION_MAJOR 1)
-set(GODOT_PCK_TOOL_VERSION_MINOR 1)
+set(GODOT_PCK_TOOL_VERSION_MINOR 2)
 
 set(GODOT_PCK_TOOL_VERSION_STR "${GODOT_PCK_TOOL_VERSION_MAJOR}.${GODOT_PCK_TOOL_VERSION_MINOR}")
 

src/pck/PckFile.cpp

@@ -213,8 +213,11 @@ bool PckFile::AddFilesFromFilesystem(const std::string& path, const std::string&
     return true;
 }
 
-void PckFile::AddSingleFile(const std::string& filesystemPath, const std::string& pckPath)
+void PckFile::AddSingleFile(const std::string& filesystemPath, std::string pckPath)
 {
+    if(pckPath.empty())
+        throw std::runtime_error("path inside pck is empty to add file to");
+
     std::cout << "Adding " << filesystemPath << " as " << pckPath << "\n";
 
     ContainedFile file;
@@ -253,6 +256,12 @@ std::string PckFile::PreparePckPath(std::string path, const std::string& stripPr
         path = path.substr(stripPrefix.size());
     }
 
+    // Fix Windows paths to make this work on Windows
+    for(size_t i = 0; i < path.size(); ++i) {
+        if(path[i] == '\\')
+            path[i] = '/';
+    }
+
     while(path.size() > 0 && path.front() == '/') {
         path.erase(path.begin());
     }

src/pck/PckFile.h

@@ -54,8 +54,9 @@ class PckFile {
     //! \brief Adds recursively files from path to this pck
     bool AddFilesFromFilesystem(const std::string& path, const std::string& stripPrefix);
 
-    void AddSingleFile(const std::string& filesystemPath, const std::string& pckPath);
+    void AddSingleFile(const std::string& filesystemPath, std::string pckPath);
 
+    //! \note Automatically converts \'s in the path to /'s
     std::string PreparePckPath(std::string path, const std::string& stripPrefix);
 
     void ChangePath(const std::string& path);