init

expkg/src/BinaryOPT/BinaryReader.h

@@ -0,0 +1,47 @@
+//
+// Created by sfd on 25-8-4.
+//
+
+#ifndef BINARYREADER_H
+#define BINARYREADER_H
+#include <cstdint>
+#include <filesystem>
+#include <fstream>
+#include <vector>
+
+#include "../Core.h"
+
+namespace PKG
+{
+    using pos_type = long long;
+
+    class PKG_API BinaryReader
+    {
+    public:
+        BinaryReader() = delete;
+        explicit BinaryReader(const std::filesystem::path& fileName);
+        ~BinaryReader();
+
+        int32_t ReadInt32();
+        uint32_t ReadUInt32();
+        char ReadChar();
+        std::string ReadString(uint32_t length);
+        std::string ReadNString(int32_t maxLength = -1);
+        void ReadData(std::string& data, uint32_t length);
+        void ReadData(std::vector<uint8_t>& data, uint32_t length);
+
+        void seekg(const pos_type pos) { m_File.seekg(pos); }
+        pos_type tellg() { return m_File.tellg(); }
+
+        std::string GetFilePath() const { return m_FilePath; }
+        std::string GetFileName() const { return m_FilePath.substr(m_FilePath.find_last_of("\\/") + 1); }
+
+    private:
+        std::ifstream m_File;
+
+        std::string m_FilePath;
+    };
+}
+
+
+#endif //BINARYREADER_H