From 9b7764df9f36f49f4e97c06b4a4034f2b2ceda4e Mon Sep 17 00:00:00 2001
From: Louis-Antoine <lamr@free.fr>
Date: Sat, 16 May 2020 23:37:15 +0200
Subject: [PATCH] Store tic values in packets on two bytes instead of one

---
 src/d_clisrv.c | 20 ++++++++++----------
 src/d_clisrv.h | 10 +++++-----
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index ed0b8e528..6119a6561 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -205,14 +205,14 @@ tic_t ExpandTics(INT32 low)
 {
 	INT32 delta;
 
-	delta = low - (maketic & UINT8_MAX);
+	delta = low - (maketic & UINT16_MAX);
 
-	if (delta >= -64 && delta <= 64)
-		return (maketic & ~UINT8_MAX) + low;
-	else if (delta > 64)
-		return (maketic & ~UINT8_MAX) - 256 + low;
-	else //if (delta < -64)
-		return (maketic & ~UINT8_MAX) + 256 + low;
+	if (delta >= -128 && delta <= 128)
+		return (maketic & ~UINT16_MAX) + low;
+	else if (delta > 128)
+		return (maketic & ~UINT16_MAX) - 65536 + low;
+	else //if (delta < -128)
+		return (maketic & ~UINT16_MAX) + 65536 + low;
 }
 
 // -----------------------------------------------------------------
@@ -4534,8 +4534,8 @@ static void CL_SendClientCmd(void)
 
 	if (cl_packetmissed)
 		netbuffer->packettype++;
-	netbuffer->u.clientpak.resendfrom = (UINT8)(neededtic & UINT8_MAX);
-	netbuffer->u.clientpak.client_tic = (UINT8)(gametic & UINT8_MAX);
+	netbuffer->u.clientpak.resendfrom = (UINT16)(neededtic & UINT16_MAX);
+	netbuffer->u.clientpak.client_tic = (UINT16)(  gametic & UINT16_MAX);
 
 	if (gamestate == GS_WAITINGPLAYERS)
 	{
@@ -4659,7 +4659,7 @@ static void SV_SendTics(void)
 
 			// Send the tics
 			netbuffer->packettype = PT_SERVERTICS;
-			netbuffer->u.serverpak.starttic = (UINT8)realfirsttic;
+			netbuffer->u.serverpak.starttic = (UINT16)realfirsttic;
 			netbuffer->u.serverpak.numtics = (UINT8)(lasttictosend - realfirsttic);
 			netbuffer->u.serverpak.numslots = (UINT8)SHORT(doomcom->numslots);
 			bufpos = (UINT8 *)&netbuffer->u.serverpak.cmds;
diff --git a/src/d_clisrv.h b/src/d_clisrv.h
index 463240a2a..5c32731d3 100644
--- a/src/d_clisrv.h
+++ b/src/d_clisrv.h
@@ -104,8 +104,8 @@ void Command_Numnodes(void);
 // Client to server packet
 typedef struct
 {
-	UINT8 client_tic;
-	UINT8 resendfrom;
+	UINT16 client_tic;
+	UINT16 resendfrom;
 	INT16 consistancy;
 	ticcmd_t cmd;
 } ATTRPACK clientcmd_pak;
@@ -114,8 +114,8 @@ typedef struct
 // WARNING: must have the same format of clientcmd_pak, for more easy use
 typedef struct
 {
-	UINT8 client_tic;
-	UINT8 resendfrom;
+	UINT16 client_tic;
+	UINT16 resendfrom;
 	INT16 consistancy;
 	ticcmd_t cmd, cmd2;
 } ATTRPACK client2cmd_pak;
@@ -128,7 +128,7 @@ typedef struct
 // this packet is too large
 typedef struct
 {
-	UINT8 starttic;
+	UINT16 starttic;
 	UINT8 numtics;
 	UINT8 numslots; // "Slots filled": Highest player number in use plus one.
 	ticcmd_t cmds[45]; // Normally [BACKUPTIC][MAXPLAYERS] but too large