Revert "Remove MSG_WriteDeltaUsercmd and MSG_ReadDeltaUsercmd"

This reverts commit 80b0792.

code/qcommon/msg.c

@@ -668,7 +668,58 @@ usercmd_t communication
 
 /*
 =====================
-MSG_WriteDeltaUsercmdKey
+MSG_WriteDeltaUsercmd
+=====================
+*/
+void MSG_WriteDeltaUsercmd( msg_t *msg, usercmd_t *from, usercmd_t *to ) {
+	if ( to->serverTime - from->serverTime < 256 ) {
+		MSG_WriteBits( msg, 1, 1 );
+		MSG_WriteBits( msg, to->serverTime - from->serverTime, 8 );
+	} else {
+		MSG_WriteBits( msg, 0, 1 );
+		MSG_WriteBits( msg, to->serverTime, 32 );
+	}
+	MSG_WriteDelta( msg, from->angles[0], to->angles[0], 16 );
+	MSG_WriteDelta( msg, from->angles[1], to->angles[1], 16 );
+	MSG_WriteDelta( msg, from->angles[2], to->angles[2], 16 );
+	MSG_WriteDelta( msg, from->forwardmove, to->forwardmove, 8 );
+	MSG_WriteDelta( msg, from->rightmove, to->rightmove, 8 );
+	MSG_WriteDelta( msg, from->upmove, to->upmove, 8 );
+	MSG_WriteDelta( msg, from->buttons, to->buttons, 16 );
+	MSG_WriteDelta( msg, from->weapon, to->weapon, 8 );
+}
+
+
+/*
+=====================
+MSG_ReadDeltaUsercmd
+=====================
+*/
+void MSG_ReadDeltaUsercmd( msg_t *msg, usercmd_t *from, usercmd_t *to ) {
+	if ( MSG_ReadBits( msg, 1 ) ) {
+		to->serverTime = from->serverTime + MSG_ReadBits( msg, 8 );
+	} else {
+		to->serverTime = MSG_ReadBits( msg, 32 );
+	}
+	to->angles[0] = MSG_ReadDelta( msg, from->angles[0], 16);
+	to->angles[1] = MSG_ReadDelta( msg, from->angles[1], 16);
+	to->angles[2] = MSG_ReadDelta( msg, from->angles[2], 16);
+	to->forwardmove = MSG_ReadDelta( msg, from->forwardmove, 8);
+	if( to->forwardmove == -128 )
+		to->forwardmove = -127;
+	to->rightmove = MSG_ReadDelta( msg, from->rightmove, 8);
+	if( to->rightmove == -128 )
+		to->rightmove = -127;
+	to->upmove = MSG_ReadDelta( msg, from->upmove, 8);
+	if( to->upmove == -128 )
+		to->upmove = -127;
+	to->buttons = MSG_ReadDelta( msg, from->buttons, 16);
+	to->weapon = MSG_ReadDelta( msg, from->weapon, 8);
+}
+
+/*
+=====================
+MSG_WriteDeltaUsercmd
 =====================
 */
 void MSG_WriteDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *to ) {
@@ -706,7 +757,7 @@ void MSG_WriteDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *
 
 /*
 =====================
-MSG_ReadDeltaUsercmdKey
+MSG_ReadDeltaUsercmd
 =====================
 */
 void MSG_ReadDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *to ) {

code/qcommon/qcommon.h

@@ -95,6 +95,9 @@ float	MSG_ReadAngle16 (msg_t *sb);
 void	MSG_ReadData (msg_t *sb, void *buffer, int size);
 int		MSG_LookaheadByte (msg_t *msg);
 
+void MSG_WriteDeltaUsercmd( msg_t *msg, struct usercmd_s *from, struct usercmd_s *to );
+void MSG_ReadDeltaUsercmd( msg_t *msg, struct usercmd_s *from, struct usercmd_s *to );
+
 void MSG_WriteDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *to );
 void MSG_ReadDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *to );