Initial public snapshot

With code from Bill. Thanks Bill!

1 files changed, 94 insertions, 0 deletions

diff --git a/src/demodefs.h b/src/demodefs.h
new file mode 100644
index 0000000..8aab77b
--- /dev/null
+++ b/src/demodefs.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright © 2021 Michael Smith <mikesmiffy128@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef INC_DEMODEFS_H
+#define INC_DEMODEFS_H
+
+#include "intdefs.h"
+
+/*
+ * This file has demo format-related constants, mostly derived from Uncrafted's
+ * C# demo parser.
+ */
+
+/* Windows' MAX_PATH is also used for player/map/etc. names in the demo... */
+#define DEMO_HDR_STRLEN 260
+
+struct demo_hdr {
+	char sig[8]; /* HL2DEMO\0 */
+	s32 demover;
+	s32 netver;
+	char servername[DEMO_HDR_STRLEN];
+	char playername[DEMO_HDR_STRLEN];
+	char mapname[DEMO_HDR_STRLEN];
+	char gamedir[DEMO_HDR_STRLEN];
+	float realtime;
+	s32 nticks;
+	s32 nframes;
+	s32 signonlen;
+};
+
+enum demo_cmd {
+	// all protocols:
+	DEMO_CMD_SIGNON = 1,
+	DEMO_CMD_PACKET,
+	DEMO_CMD_SYNC,
+	DEMO_CMD_CONCMD,
+	DEMO_CMD_USERCMD,
+	DEMO_CMD_DATATABLES,
+	DEMO_CMD_STOP,
+	DEMO_CMD_STRINGTABLES14 = 8, // protocols 14 and 15
+	DEMO_CMD_CUSTOMDATA = 8, // protocol 36+
+	DEMO_CMD_STRINGTABLES36  // "
+};
+
+/* these are seemingly consistent across games/branches */
+#define DEMO_MAXEDICTBITS 11
+#define DEMO_MAXEDICTS (1 << DEMO_MAXEDICTS)
+#define DEMO_NETHANDLESERIALBITS 10
+#define DEMO_NETHANDLEBITS (DEMO_MAXEDICTBITS + DEMO_NETHANDLEBITS)
+#define DEMO_NULLHANDLE ((1u << DEMO_NETHANDLEBITS) - 1)
+#define DEMO_SUBSTRINGBITS 5
+#define DEMO_MAXUSERDATABITS 14
+#define DEMO_HANDLESERIALBITS 10
+// TODO: clarify what these ones do, and/or remove
+#define DEMO_MAXNETMSG 6
+#define DEMO_AREABITSNUMBITS 8
+#define DEMO_MAXSNDIDXBITS 13
+#define DEMO_SNDSEQBITS 10
+#define DEMO_MAXSNDLVLBITS 9
+#define DEMO_MAXSNDDELAYBITS 13
+#define DEMO_SNDSEQMASK ((1 << DEMO_SNDSEQBITS) - 1)
+// end of todo :^)
+#define DEMO_PLAYERNAMELEN 32
+#define DEMO_GUIDLEN 32
+
+/* protocol versions (seem somewhat arbitrary but just copying Uncrafted) */
+// (note: these aren't version numbers, they're just our own identifiers)
+enum {
+	DEMO_PROTO_HL2OE,
+	DEMO_PROTO_PORTAL_5135,
+	DEMO_PROTO_PORTAL_3420,
+	DEMO_PROTO_PORTAL_STEAM,
+	DEMO_PROTO_PORTAL2,
+	DEMO_PROTO_L4D2000,
+	DEMO_PROTO_L4D2042,
+	DEMO_PROTO_UNKNOWN
+};
+
+#endif
+
+// vi: sw=4 ts=4 noet tw=80 cc=80