implement TReadStream, TReadBuffer, and TReadBinaryFile

1 files changed, 33 insertions, 1 deletions

diff --git a/src/common.hh b/src/common.hh
index b057465..204cf2a 100644
--- a/src/common.hh
+++ b/src/common.hh
@@ -137,6 +137,38 @@ void SetPrintFunction(TPrintFunction *Function);
 void error(char *Text, ...) ATTR_PRINTF(1, 2);
 void print(int Level, char *Text, ...) ATTR_PRINTF(1, 2);
 
-//
+struct TReadStream {
+	// VIRTUAL FUNCTIONS
+	// =========================================================================
+	virtual bool readFlag(void);														// VTABLE[0]
+	virtual uint8 readByte(void) = 0;													// VTABLE[1]
+	virtual uint16 readWord(void);														// VTABLE[2]
+	virtual uint32 readQuad(void);														// VTABLE[3]
+	virtual void readString(char *Buffer, int MaxLength);								// VTABLE[4]
+	virtual void readBytes(uint8 *Buffer, int Count);									// VTABLE[5]
+	virtual bool eof(void) = 0;															// VTABLE[6]
+	virtual void skip(int Count) = 0;													// VTABLE[7]
+};
+
+struct TReadBuffer: TReadStream {
+	// REGULAR FUNCTIONS
+	// =========================================================================
+	TReadBuffer(uint8 *Data, int Size);
+
+	// VIRTUAL FUNCTIONS
+	// =========================================================================
+	uint8 readByte(void) override;
+	uint16 readWord(void) override;
+	uint32 readQuad(void) override;
+	void readBytes(uint8 *Buffer, int Count) override;
+	bool eof(void) override;
+	void skip(int Count) override;
+
+	// DATA
+	// =========================================================================
+	uint8 *Data;
+	int Size;
+	int Position;
+};
 
 #endif //TIBIA_COMMON_HH_