ref: baef203819ad5490809712332340f6fddf3c9f56
parent: c1e37f1955a0c546a795484acc92510e4c4dc6b2
author: Simon Howard <fraggle@gmail.com>
date: Thu Jan 12 21:20:12 EST 2006
Signed integer read functions. Use these when reading ticcmd diffs. Subversion-branch: /trunk/chocolate-doom Subversion-revision: 287
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -1,7 +1,7 @@
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
-// $Id: net_packet.c 236 2006-01-01 23:51:41Z fraggle $
+// $Id: net_packet.c 287 2006-01-13 02:20:12Z fraggle $
//
// Copyright(C) 2005 Simon Howard
//
@@ -21,6 +21,9 @@
// 02111-1307, USA.
//
// $Log$
+// Revision 1.3 2006/01/13 02:20:12 fraggle
+// Signed integer read functions. Use these when reading ticcmd diffs.
+//
// Revision 1.2 2006/01/01 23:51:41 fraggle
// String read/write functions
//
@@ -122,6 +125,59 @@
packet->pos += 4;
return true;
+}
+
+// Signed read functions
+
+boolean NET_ReadSInt8(net_packet_t *packet, signed int *data)
+{+ if (NET_ReadInt8(packet,(unsigned int *) data))
+ {+ if (*data & (1 << 7))
+ {+ *data &= ~(1 << 7);
+ *data -= (1 << 7);
+ }
+ return true;
+ }
+ else
+ {+ return false;
+ }
+}
+
+boolean NET_ReadSInt16(net_packet_t *packet, signed int *data)
+{+ if (NET_ReadInt16(packet, (unsigned int *) data))
+ {+ if (*data & (1 << 15))
+ {+ *data &= ~(1 << 15);
+ *data -= (1 << 15);
+ }
+ return true;
+ }
+ else
+ {+ return false;
+ }
+}
+
+boolean NET_ReadSInt32(net_packet_t *packet, signed int *data)
+{+ if (NET_ReadInt32(packet, (unsigned int *) data))
+ {+ if (*data & (1 << 31))
+ {+ *data &= ~(1 << 31);
+ *data -= (1 << 31);
+ }
+ return true;
+ }
+ else
+ {+ return false;
+ }
}
// Read a string from the packet. Returns NULL if a terminating
--- a/src/net_packet.h
+++ b/src/net_packet.h
@@ -1,7 +1,7 @@
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
-// $Id: net_packet.h 236 2006-01-01 23:51:41Z fraggle $
+// $Id: net_packet.h 287 2006-01-13 02:20:12Z fraggle $
//
// Copyright(C) 2005 Simon Howard
//
@@ -21,6 +21,9 @@
// 02111-1307, USA.
//
// $Log$
+// Revision 1.3 2006/01/13 02:20:12 fraggle
+// Signed integer read functions. Use these when reading ticcmd diffs.
+//
// Revision 1.2 2006/01/01 23:51:41 fraggle
// String read/write functions
//
@@ -41,13 +44,21 @@
net_packet_t *NET_NewPacket(int initial_size);
net_packet_t *NET_PacketDup(net_packet_t *packet);
void NET_FreePacket(net_packet_t *packet);
+
boolean NET_ReadInt8(net_packet_t *packet, unsigned int *data);
boolean NET_ReadInt16(net_packet_t *packet, unsigned int *data);
boolean NET_ReadInt32(net_packet_t *packet, unsigned int *data);
+
+boolean NET_ReadSInt8(net_packet_t *packet, signed int *data);
+boolean NET_ReadSInt16(net_packet_t *packet, signed int *data);
+boolean NET_ReadSInt32(net_packet_t *packet, signed int *data);
+
char *NET_ReadString(net_packet_t *packet);
+
void NET_WriteInt8(net_packet_t *packet, unsigned int i);
void NET_WriteInt16(net_packet_t *packet, unsigned int i);
void NET_WriteInt32(net_packet_t *packet, unsigned int i);
+
void NET_WriteString(net_packet_t *packet, char *string);
#endif /* #ifndef NET_PACKET_H */
--- a/src/net_structrw.c
+++ b/src/net_structrw.c
@@ -1,7 +1,7 @@
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
-// $Id: net_structrw.c 281 2006-01-11 01:37:53Z fraggle $
+// $Id: net_structrw.c 287 2006-01-13 02:20:12Z fraggle $
//
// Copyright(C) 2005 Simon Howard
//
@@ -21,6 +21,9 @@
// 02111-1307, USA.
//
// $Log$
+// Revision 1.3 2006/01/13 02:20:12 fraggle
+// Signed integer read functions. Use these when reading ticcmd diffs.
+//
// Revision 1.2 2006/01/11 01:37:53 fraggle
// ticcmd diffs: allow compare and patching ticcmds, and reading/writing
// ticdiffs to packets.
@@ -59,7 +62,8 @@
&& NET_ReadInt8(packet, (unsigned int *) &settings->skill);
}
-void NET_WriteTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff)
+void NET_WriteTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff,
+ boolean lowres_turn)
{// Header
@@ -72,7 +76,16 @@
if (diff->diff & NET_TICDIFF_SIDE)
NET_WriteInt8(packet, diff->cmd.sidemove);
if (diff->diff & NET_TICDIFF_TURN)
- NET_WriteInt16(packet, diff->cmd.angleturn);
+ {+ if (lowres_turn)
+ {+ NET_WriteInt8(packet, diff->cmd.angleturn / 256);
+ }
+ else
+ {+ NET_WriteInt16(packet, diff->cmd.angleturn);
+ }
+ }
if (diff->diff & NET_TICDIFF_BUTTONS)
NET_WriteInt8(packet, diff->cmd.buttons);
if (diff->diff & NET_TICDIFF_CONSISTANCY)
@@ -81,9 +94,11 @@
NET_WriteInt8(packet, diff->cmd.chatchar);
}
-boolean NET_ReadTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff)
+boolean NET_ReadTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff,
+ boolean lowres_turn)
{unsigned int val;
+ signed int sval;
// Read header
@@ -94,23 +109,32 @@
if (diff->diff & NET_TICDIFF_FORWARD)
{- if (!NET_ReadInt8(packet, &val))
+ if (!NET_ReadSInt8(packet, &sval))
return false;
- diff->cmd.forwardmove = val;
+ diff->cmd.forwardmove = sval;
}
if (diff->diff & NET_TICDIFF_SIDE)
{- if (!NET_ReadInt8(packet, &val))
+ if (!NET_ReadSInt8(packet, &sval))
return false;
- diff->cmd.sidemove = val;
+ diff->cmd.sidemove = sval;
}
if (diff->diff & NET_TICDIFF_TURN)
{- if (!NET_ReadInt16(packet, &val))
- return false;
- diff->cmd.angleturn = val;
+ if (lowres_turn)
+ {+ if (!NET_ReadSInt8(packet, &sval))
+ return false;
+ diff->cmd.angleturn = sval * 256;
+ }
+ else
+ {+ if (!NET_ReadSInt16(packet, &sval))
+ return false;
+ diff->cmd.angleturn = sval;
+ }
}
if (diff->diff & NET_TICDIFF_BUTTONS)