Add file structure to code

- Rename project to CopiumEngine

CopiumEngine/src/copium/util/FileSystem.cpp

@@ -0,0 +1,66 @@
+#include "copium/util/FileSystem.h"
+
+namespace Copium
+{
+  std::vector<char> FileSystem::ReadFile(const std::string& filename)
+  {
+    std::ifstream file(filename, std::ios::ate | std::ios::binary);
+    CP_ASSERT(file.is_open(), "ReadFile : Failed to open file");
+
+    size_t fileSize = (size_t)file.tellg();
+    std::vector<char> buffer(fileSize);
+
+    file.seekg(0);
+    file.read(buffer.data(), fileSize);
+
+    return buffer;
+  }
+
+  std::string FileSystem::ReadFileStr(const std::string& filename)
+  {
+    std::ifstream file(filename, std::ios::ate | std::ios::binary);
+    CP_ASSERT(file.is_open(), "ReadFileStr : Failed to open file");
+
+    size_t fileSize = (size_t)file.tellg();
+    std::string buffer;
+    buffer.resize(fileSize);
+
+    file.seekg(0);
+    file.read(buffer.data(), fileSize);
+
+    return buffer;
+  }
+
+  void FileSystem::WriteFile(const std::string& filename, const std::string& data)
+  {
+    std::filesystem::path path{filename};
+    std::filesystem::create_directories(path.parent_path());
+    std::ofstream file(filename, std::ios::binary);
+    CP_ASSERT(file.is_open(), "WriteFile : Failed to open file");
+
+    file.write(data.c_str(), data.size());
+  }
+
+  void FileSystem::WriteFile(const std::string& filename, const char* data, size_t size)
+  {
+    std::filesystem::path path{filename};
+    std::filesystem::create_directories(path.parent_path());
+    std::ofstream file(filename, std::ios::binary);
+    CP_ASSERT(file.is_open(), "WriteFile : Failed to open file");
+
+    file.write(data, size);
+  }
+
+  bool FileSystem::FileExists(const std::string& filename)
+  {
+    std::ifstream file(filename);
+    return file.good();
+  }
+
+  int64_t FileSystem::DateModified(const std::string& filename)
+  {
+    struct stat result;
+    CP_ASSERT(stat(filename.c_str(), &result) == 0, "DataModified : Cannot stat file %s", filename.c_str());
+    return (int64_t)result.st_mtime;
+  }
+}