Initial Prey Game integration support.

neo/prey/idLib/MsgQueue.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#define MAX_MSG_QUEUE_SIZE				16384		// must be a power of 2
+
+class idMsgQueue {
+public:
+	idMsgQueue();
+
+	void			Init(int sequence);
+
+	bool			Add(const byte* data, const int size);
+	bool			Get(byte* data, int& size);
+	int				GetTotalSize(void) const;
+	int				GetSpaceLeft(void) const;
+	int				GetFirst(void) const { return first; }
+	int				GetLast(void) const { return last; }
+	void			CopyToBuffer(byte* buf) const;
+
+	void			WriteToMsg(idBitMsg& msg) const; //HUMANHEAD rww - write the queue to a bitmsg
+	void			ReadFromMsg(const idBitMsg& msg); //HUMANHEAD rww - read the queue from a bitmsg
+	bool			GetDirect(byte* data, int& size); //HUMANHEAD rww - doesn't care about sequence
+
+private:
+	byte			buffer[MAX_MSG_QUEUE_SIZE];
+	int				first;			// sequence number of first message in queue
+	int				last;			// sequence number of last message in queue
+	int				startIndex;		// index pointing to the first byte of the first message
+	int				endIndex;		// index pointing to the first byte after the last message
+
+	void			WriteByte(byte b);
+	byte			ReadByte(void);
+	void			WriteShort(int s);
+	int				ReadShort(void);
+	void			WriteLong(int l);
+	int				ReadLong(void);
+	void			WriteData(const byte* data, const int size);
+	void			ReadData(byte* data, const int size);
+};