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Rev | Author | Line No. | Line |
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298 | serge | 1 | // Emacs style mode select -*- C++ -*- |
2 | //----------------------------------------------------------------------------- |
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3 | // |
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4 | // $Id:$ |
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5 | // |
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6 | // Copyright (C) 1993-1996 by id Software, Inc. |
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7 | // |
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8 | // This source is available for distribution and/or modification |
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9 | // only under the terms of the DOOM Source Code License as |
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10 | // published by id Software. All rights reserved. |
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11 | // |
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12 | // The source is distributed in the hope that it will be useful, |
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13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License |
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15 | // for more details. |
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16 | // |
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17 | // $Log:$ |
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18 | // |
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19 | // DESCRIPTION: |
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20 | // DOOM Network game communication and protocol, |
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21 | // all OS independend parts. |
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22 | // |
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23 | //----------------------------------------------------------------------------- |
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24 | |||
25 | |||
26 | static const char rcsid[] = "$Id: d_net.c,v 1.3 1997/02/03 22:01:47 b1 Exp $"; |
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27 | |||
28 | |||
29 | #include "m_menu.h" |
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30 | #include "i_system.h" |
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31 | #include "i_video.h" |
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32 | #include "i_net.h" |
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33 | #include "g_game.h" |
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34 | #include "doomdef.h" |
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35 | #include "doomstat.h" |
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36 | |||
37 | #define NCMD_EXIT 0x80000000 |
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38 | #define NCMD_RETRANSMIT 0x40000000 |
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39 | #define NCMD_SETUP 0x20000000 |
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40 | #define NCMD_KILL 0x10000000 // kill game |
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41 | #define NCMD_CHECKSUM 0x0fffffff |
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42 | |||
43 | |||
44 | doomcom_t* doomcom; |
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45 | doomdata_t* netbuffer; // points inside doomcom |
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46 | |||
47 | |||
48 | // |
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49 | // NETWORKING |
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50 | // |
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51 | // gametic is the tic about to (or currently being) run |
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52 | // maketic is the tick that hasn't had control made for it yet |
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53 | // nettics[] has the maketics for all players |
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54 | // |
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55 | // a gametic cannot be run until nettics[] > gametic for all players |
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56 | // |
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57 | #define RESENDCOUNT 10 |
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58 | #define PL_DRONE 0x80 // bit flag in doomdata->player |
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59 | |||
60 | ticcmd_t localcmds[BACKUPTICS]; |
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61 | |||
62 | ticcmd_t netcmds[MAXPLAYERS][BACKUPTICS]; |
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63 | int nettics[MAXNETNODES]; |
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64 | boolean nodeingame[MAXNETNODES]; // set false as nodes leave game |
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65 | boolean remoteresend[MAXNETNODES]; // set when local needs tics |
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66 | int resendto[MAXNETNODES]; // set when remote needs tics |
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67 | int resendcount[MAXNETNODES]; |
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68 | |||
69 | int nodeforplayer[MAXPLAYERS]; |
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70 | |||
71 | int maketic; |
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72 | int lastnettic; |
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73 | int skiptics; |
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74 | int ticdup; |
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75 | int maxsend; // BACKUPTICS/(2*ticdup)-1 |
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76 | |||
77 | |||
78 | void D_ProcessEvents (void); |
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79 | void G_BuildTiccmd (ticcmd_t *cmd); |
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80 | void D_DoAdvanceDemo (void); |
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81 | |||
82 | boolean reboundpacket; |
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83 | doomdata_t reboundstore; |
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84 | |||
85 | |||
86 | |||
87 | // |
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88 | // |
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89 | // |
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90 | int NetbufferSize (void) |
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91 | { |
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92 | return (int)&(((doomdata_t *)0)->cmds[netbuffer->numtics]); |
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93 | } |
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94 | |||
95 | // |
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96 | // Checksum |
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97 | // |
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98 | unsigned NetbufferChecksum (void) |
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99 | { |
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100 | unsigned c; |
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101 | int i,l; |
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102 | |||
103 | c = 0x1234567; |
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104 | |||
105 | // FIXME -endianess? |
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106 | #ifdef NORMALUNIX |
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107 | return 0; // byte order problems |
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108 | #endif |
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109 | |||
110 | l = (NetbufferSize () - (int)&(((doomdata_t *)0)->retransmitfrom))/4; |
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111 | for (i=0 ; i |
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112 | c += ((unsigned *)&netbuffer->retransmitfrom)[i] * (i+1); |
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113 | |||
114 | return c & NCMD_CHECKSUM; |
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115 | } |
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116 | |||
117 | // |
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118 | // |
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119 | // |
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120 | int ExpandTics (int low) |
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121 | { |
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122 | int delta; |
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123 | |||
124 | delta = low - (maketic&0xff); |
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125 | |||
126 | if (delta >= -64 && delta <= 64) |
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127 | return (maketic&~0xff) + low; |
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128 | if (delta > 64) |
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129 | return (maketic&~0xff) - 256 + low; |
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130 | if (delta < -64) |
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131 | return (maketic&~0xff) + 256 + low; |
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132 | |||
133 | I_Error ("ExpandTics: strange value %i at maketic %i",low,maketic); |
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134 | return 0; |
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135 | } |
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136 | |||
137 | |||
138 | |||
139 | // |
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140 | // HSendPacket |
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141 | // |
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300 | serge | 142 | void HSendPacket (int node,int flags ) |
298 | serge | 143 | { |
144 | netbuffer->checksum = NetbufferChecksum () | flags; |
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145 | |||
146 | if (!node) |
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147 | { |
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148 | reboundstore = *netbuffer; |
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149 | reboundpacket = true; |
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150 | return; |
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151 | } |
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152 | |||
153 | if (demoplayback) |
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154 | return; |
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155 | |||
156 | if (!netgame) |
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157 | I_Error ("Tried to transmit to another node"); |
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158 | |||
159 | doomcom->command = CMD_SEND; |
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160 | doomcom->remotenode = node; |
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161 | doomcom->datalength = NetbufferSize (); |
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162 | |||
163 | if (debugfile) |
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164 | { |
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165 | int i; |
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166 | int realretrans; |
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167 | if (netbuffer->checksum & NCMD_RETRANSMIT) |
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168 | realretrans = ExpandTics (netbuffer->retransmitfrom); |
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169 | else |
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170 | realretrans = -1; |
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171 | |||
300 | serge | 172 | printf ("send (%i + %i, R %i) [%i] ", |
298 | serge | 173 | ExpandTics(netbuffer->starttic), |
174 | netbuffer->numtics, realretrans, doomcom->datalength); |
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175 | |||
176 | for (i=0 ; i |
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300 | serge | 177 | printf ("%i ",((byte *)netbuffer)[i]); |
298 | serge | 178 | |
300 | serge | 179 | printf ("\n"); |
298 | serge | 180 | } |
181 | |||
182 | I_NetCmd (); |
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183 | } |
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184 | |||
185 | // |
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186 | // HGetPacket |
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187 | // Returns false if no packet is waiting |
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188 | // |
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189 | boolean HGetPacket (void) |
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190 | { |
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191 | if (reboundpacket) |
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192 | { |
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193 | *netbuffer = reboundstore; |
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194 | doomcom->remotenode = 0; |
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195 | reboundpacket = false; |
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196 | return true; |
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197 | } |
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198 | |||
199 | if (!netgame) |
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200 | return false; |
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201 | |||
202 | if (demoplayback) |
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203 | return false; |
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204 | |||
205 | doomcom->command = CMD_GET; |
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206 | I_NetCmd (); |
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207 | |||
208 | if (doomcom->remotenode == -1) |
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209 | return false; |
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210 | |||
211 | if (doomcom->datalength != NetbufferSize ()) |
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212 | { |
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213 | if (debugfile) |
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300 | serge | 214 | printf ("bad packet length %i\n",doomcom->datalength); |
298 | serge | 215 | return false; |
216 | } |
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217 | |||
218 | if (NetbufferChecksum () != (netbuffer->checksum&NCMD_CHECKSUM) ) |
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219 | { |
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220 | if (debugfile) |
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300 | serge | 221 | printf ("bad packet checksum\n"); |
298 | serge | 222 | return false; |
223 | } |
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224 | |||
225 | if (debugfile) |
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226 | { |
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227 | int realretrans; |
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228 | int i; |
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229 | |||
230 | if (netbuffer->checksum & NCMD_SETUP) |
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300 | serge | 231 | printf ("setup packet\n"); |
298 | serge | 232 | else |
233 | { |
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234 | if (netbuffer->checksum & NCMD_RETRANSMIT) |
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235 | realretrans = ExpandTics (netbuffer->retransmitfrom); |
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236 | else |
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237 | realretrans = -1; |
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238 | |||
300 | serge | 239 | printf ("get %i = (%i + %i, R %i)[%i] ", |
298 | serge | 240 | doomcom->remotenode, |
241 | ExpandTics(netbuffer->starttic), |
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242 | netbuffer->numtics, realretrans, doomcom->datalength); |
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243 | |||
244 | for (i=0 ; i |
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300 | serge | 245 | printf ("%i ",((byte *)netbuffer)[i]); |
246 | printf ("\n"); |
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298 | serge | 247 | } |
248 | } |
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249 | return true; |
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250 | } |
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251 | |||
252 | |||
253 | // |
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254 | // GetPackets |
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255 | // |
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256 | char exitmsg[80]; |
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257 | |||
258 | void GetPackets (void) |
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259 | { |
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260 | int netconsole; |
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261 | int netnode; |
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262 | ticcmd_t *src, *dest; |
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263 | int realend; |
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264 | int realstart; |
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265 | |||
266 | while ( HGetPacket() ) |
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267 | { |
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268 | if (netbuffer->checksum & NCMD_SETUP) |
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269 | continue; // extra setup packet |
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270 | |||
271 | netconsole = netbuffer->player & ~PL_DRONE; |
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272 | netnode = doomcom->remotenode; |
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273 | |||
274 | // to save bytes, only the low byte of tic numbers are sent |
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275 | // Figure out what the rest of the bytes are |
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276 | realstart = ExpandTics (netbuffer->starttic); |
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277 | realend = (realstart+netbuffer->numtics); |
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278 | |||
279 | // check for exiting the game |
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280 | if (netbuffer->checksum & NCMD_EXIT) |
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281 | { |
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282 | if (!nodeingame[netnode]) |
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283 | continue; |
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284 | nodeingame[netnode] = false; |
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285 | playeringame[netconsole] = false; |
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286 | strcpy (exitmsg, "Player 1 left the game"); |
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287 | exitmsg[7] += netconsole; |
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288 | players[consoleplayer].message = exitmsg; |
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289 | if (demorecording) |
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290 | G_CheckDemoStatus (); |
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291 | continue; |
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292 | } |
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293 | |||
294 | // check for a remote game kill |
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295 | if (netbuffer->checksum & NCMD_KILL) |
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296 | I_Error ("Killed by network driver"); |
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297 | |||
298 | nodeforplayer[netconsole] = netnode; |
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299 | |||
300 | // check for retransmit request |
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301 | if ( resendcount[netnode] <= 0 |
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302 | && (netbuffer->checksum & NCMD_RETRANSMIT) ) |
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303 | { |
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304 | resendto[netnode] = ExpandTics(netbuffer->retransmitfrom); |
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305 | if (debugfile) |
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300 | serge | 306 | printf ("retransmit from %i\n", resendto[netnode]); |
298 | serge | 307 | resendcount[netnode] = RESENDCOUNT; |
308 | } |
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309 | else |
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310 | resendcount[netnode]--; |
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311 | |||
312 | // check for out of order / duplicated packet |
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313 | if (realend == nettics[netnode]) |
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314 | continue; |
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315 | |||
316 | if (realend < nettics[netnode]) |
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317 | { |
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318 | if (debugfile) |
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300 | serge | 319 | printf ("out of order packet (%i + %i)\n" , |
298 | serge | 320 | realstart,netbuffer->numtics); |
321 | continue; |
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322 | } |
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323 | |||
324 | // check for a missed packet |
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325 | if (realstart > nettics[netnode]) |
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326 | { |
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327 | // stop processing until the other system resends the missed tics |
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328 | if (debugfile) |
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300 | serge | 329 | printf ("missed tics from %i (%i - %i)\n", |
298 | serge | 330 | netnode, realstart, nettics[netnode]); |
331 | remoteresend[netnode] = true; |
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332 | continue; |
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333 | } |
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334 | |||
335 | // update command store from the packet |
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336 | { |
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337 | int start; |
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338 | |||
339 | remoteresend[netnode] = false; |
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340 | |||
341 | start = nettics[netnode] - realstart; |
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342 | src = &netbuffer->cmds[start]; |
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343 | |||
344 | while (nettics[netnode] < realend) |
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345 | { |
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346 | dest = &netcmds[netconsole][nettics[netnode]%BACKUPTICS]; |
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347 | nettics[netnode]++; |
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348 | *dest = *src; |
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349 | src++; |
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350 | } |
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351 | } |
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352 | } |
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353 | } |
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354 | |||
355 | |||
356 | // |
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357 | // NetUpdate |
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358 | // Builds ticcmds for console player, |
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359 | // sends out a packet |
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360 | // |
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361 | int gametime; |
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362 | |||
363 | void NetUpdate (void) |
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364 | { |
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365 | int nowtime; |
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366 | int newtics; |
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367 | int i,j; |
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368 | int realstart; |
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369 | int gameticdiv; |
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370 | |||
371 | // check time |
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372 | nowtime = I_GetTime ()/ticdup; |
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373 | newtics = nowtime - gametime; |
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374 | gametime = nowtime; |
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375 | |||
376 | if (newtics <= 0) // nothing new to update |
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377 | goto listen; |
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378 | |||
379 | if (skiptics <= newtics) |
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380 | { |
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381 | newtics -= skiptics; |
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382 | skiptics = 0; |
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383 | } |
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384 | else |
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385 | { |
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386 | skiptics -= newtics; |
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387 | newtics = 0; |
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388 | } |
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389 | |||
390 | |||
391 | netbuffer->player = consoleplayer; |
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392 | |||
393 | // build new ticcmds for console player |
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394 | gameticdiv = gametic/ticdup; |
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395 | for (i=0 ; i |
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396 | { |
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397 | I_StartTic (); |
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398 | D_ProcessEvents (); |
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399 | if (maketic - gameticdiv >= BACKUPTICS/2-1) |
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400 | break; // can't hold any more |
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401 | |||
402 | //printf ("mk:%i ",maketic); |
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403 | G_BuildTiccmd (&localcmds[maketic%BACKUPTICS]); |
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404 | maketic++; |
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405 | } |
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406 | |||
407 | |||
408 | if (singletics) |
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409 | return; // singletic update is syncronous |
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410 | |||
411 | // send the packet to the other nodes |
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412 | for (i=0 ; i |
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413 | if (nodeingame[i]) |
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414 | { |
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415 | netbuffer->starttic = realstart = resendto[i]; |
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416 | netbuffer->numtics = maketic - realstart; |
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417 | if (netbuffer->numtics > BACKUPTICS) |
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418 | I_Error ("NetUpdate: netbuffer->numtics > BACKUPTICS"); |
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419 | |||
420 | resendto[i] = maketic - doomcom->extratics; |
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421 | |||
422 | for (j=0 ; j< netbuffer->numtics ; j++) |
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423 | netbuffer->cmds[j] = |
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424 | localcmds[(realstart+j)%BACKUPTICS]; |
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425 | |||
426 | if (remoteresend[i]) |
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427 | { |
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428 | netbuffer->retransmitfrom = nettics[i]; |
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429 | HSendPacket (i, NCMD_RETRANSMIT); |
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430 | } |
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431 | else |
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432 | { |
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433 | netbuffer->retransmitfrom = 0; |
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434 | HSendPacket (i, 0); |
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435 | } |
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436 | } |
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437 | |||
438 | // listen for other packets |
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439 | listen: |
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440 | GetPackets (); |
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441 | } |
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442 | |||
443 | |||
444 | |||
445 | // |
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446 | // CheckAbort |
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447 | // |
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448 | void CheckAbort (void) |
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449 | { |
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450 | event_t *ev; |
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451 | int stoptic; |
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452 | |||
453 | stoptic = I_GetTime () + 2; |
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454 | while (I_GetTime() < stoptic) |
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455 | I_StartTic (); |
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456 | |||
457 | I_StartTic (); |
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458 | for ( ; eventtail != eventhead |
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459 | ; eventtail = (++eventtail)&(MAXEVENTS-1) ) |
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460 | { |
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461 | ev = &events[eventtail]; |
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462 | if (ev->type == ev_keydown && ev->data1 == KEY_ESCAPE) |
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463 | I_Error ("Network game synchronization aborted."); |
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464 | } |
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465 | } |
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466 | |||
467 | |||
468 | // |
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469 | // D_ArbitrateNetStart |
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470 | // |
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471 | void D_ArbitrateNetStart (void) |
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472 | { |
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473 | int i; |
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474 | boolean gotinfo[MAXNETNODES]; |
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475 | |||
476 | autostart = true; |
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477 | memset (gotinfo,0,sizeof(gotinfo)); |
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478 | |||
479 | if (doomcom->consoleplayer) |
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480 | { |
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481 | // listen for setup info from key player |
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482 | // __libclog_printf ("listening for network start info...\n"); |
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483 | while (1) |
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484 | { |
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485 | CheckAbort (); |
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486 | if (!HGetPacket ()) |
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487 | continue; |
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488 | if (netbuffer->checksum & NCMD_SETUP) |
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489 | { |
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490 | if (netbuffer->player != VERSION_NUM) |
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491 | I_Error ("Different DOOM versions cannot play a net game!"); |
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492 | startskill = netbuffer->retransmitfrom & 15; |
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493 | deathmatch = (netbuffer->retransmitfrom & 0xc0) >> 6; |
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494 | nomonsters = (netbuffer->retransmitfrom & 0x20) > 0; |
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495 | respawnparm = (netbuffer->retransmitfrom & 0x10) > 0; |
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496 | startmap = netbuffer->starttic & 0x3f; |
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497 | startepisode = netbuffer->starttic >> 6; |
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498 | return; |
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499 | } |
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500 | } |
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501 | } |
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502 | else |
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503 | { |
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504 | // key player, send the setup info |
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505 | // __libclog_printf ("sending network start info...\n"); |
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506 | do |
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507 | { |
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508 | CheckAbort (); |
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509 | for (i=0 ; i |
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510 | { |
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511 | netbuffer->retransmitfrom = startskill; |
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512 | if (deathmatch) |
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513 | netbuffer->retransmitfrom |= (deathmatch<<6); |
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514 | if (nomonsters) |
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515 | netbuffer->retransmitfrom |= 0x20; |
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516 | if (respawnparm) |
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517 | netbuffer->retransmitfrom |= 0x10; |
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518 | netbuffer->starttic = startepisode * 64 + startmap; |
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519 | netbuffer->player = VERSION_NUM; |
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520 | netbuffer->numtics = 0; |
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521 | HSendPacket (i, NCMD_SETUP); |
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522 | } |
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523 | |||
524 | #if 1 |
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525 | for(i = 10 ; i && HGetPacket(); --i) |
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526 | { |
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527 | if((netbuffer->player&0x7f) < MAXNETNODES) |
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528 | gotinfo[netbuffer->player&0x7f] = true; |
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529 | } |
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530 | #else |
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531 | while (HGetPacket ()) |
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532 | { |
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533 | gotinfo[netbuffer->player&0x7f] = true; |
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534 | } |
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535 | #endif |
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536 | |||
537 | for (i=1 ; i |
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538 | if (!gotinfo[i]) |
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539 | break; |
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540 | } while (i < doomcom->numnodes); |
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541 | } |
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542 | } |
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543 | |||
544 | // |
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545 | // D_CheckNetGame |
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546 | // Works out player numbers among the net participants |
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547 | // |
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548 | extern int viewangleoffset; |
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549 | |||
550 | void D_CheckNetGame (void) |
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551 | { |
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552 | int i; |
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553 | |||
554 | for (i=0 ; i |
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555 | { |
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556 | nodeingame[i] = false; |
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557 | nettics[i] = 0; |
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558 | remoteresend[i] = false; // set when local needs tics |
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559 | resendto[i] = 0; // which tic to start sending |
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560 | } |
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561 | |||
562 | // I_InitNetwork sets doomcom and netgame |
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563 | I_InitNetwork (); |
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564 | if (doomcom->id != DOOMCOM_ID) |
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565 | I_Error ("Doomcom buffer invalid!"); |
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566 | |||
567 | netbuffer = &doomcom->data; |
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568 | consoleplayer = displayplayer = doomcom->consoleplayer; |
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569 | if (netgame) |
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570 | D_ArbitrateNetStart (); |
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571 | |||
572 | // __libclog_printf ("startskill %i deathmatch: %i startmap: %i startepisode: %i\n", |
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573 | // startskill, deathmatch, startmap, startepisode); |
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574 | |||
575 | // read values out of doomcom |
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576 | ticdup = doomcom->ticdup; |
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577 | maxsend = BACKUPTICS/(2*ticdup)-1; |
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578 | if (maxsend<1) |
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579 | maxsend = 1; |
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580 | |||
581 | for (i=0 ; i |
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582 | playeringame[i] = true; |
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583 | for (i=0 ; i |
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584 | nodeingame[i] = true; |
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585 | |||
586 | // __libclog_printf ("player %i of %i (%i nodes)\n", |
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587 | // consoleplayer+1, doomcom->numplayers, doomcom->numnodes); |
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588 | |||
589 | } |
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590 | |||
591 | |||
592 | // |
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593 | // D_QuitNetGame |
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594 | // Called before quitting to leave a net game |
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595 | // without hanging the other players |
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596 | // |
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597 | void D_QuitNetGame (void) |
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598 | { |
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599 | int i, j; |
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600 | |||
601 | if (debugfile) |
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602 | fclose (debugfile); |
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603 | |||
604 | if (!netgame || !usergame || consoleplayer == -1 || demoplayback) |
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605 | return; |
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606 | |||
607 | // send a bunch of packets for security |
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608 | netbuffer->player = consoleplayer; |
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609 | netbuffer->numtics = 0; |
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610 | for (i=0 ; i<4 ; i++) |
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611 | { |
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612 | for (j=1 ; j |
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613 | if (nodeingame[j]) |
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614 | HSendPacket (j, NCMD_EXIT); |
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615 | I_WaitVBL (1); |
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616 | } |
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617 | } |
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618 | |||
619 | |||
620 | |||
621 | // |
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622 | // TryRunTics |
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623 | // |
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624 | int frametics[4]; |
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625 | int frameon; |
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626 | int frameskip[4]; |
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627 | int oldnettics; |
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628 | |||
629 | extern boolean advancedemo; |
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630 | |||
631 | void TryRunTics (void) |
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632 | { |
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633 | int i; |
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634 | int lowtic; |
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635 | int entertic; |
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636 | static int oldentertics; |
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637 | int realtics; |
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638 | int availabletics; |
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639 | int counts; |
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640 | int numplaying; |
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641 | |||
642 | // get real tics |
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643 | entertic = I_GetTime ()/ticdup; |
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644 | realtics = entertic - oldentertics; |
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645 | oldentertics = entertic; |
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646 | |||
647 | // get available tics |
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648 | NetUpdate (); |
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649 | |||
650 | lowtic = MAXINT; |
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651 | numplaying = 0; |
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652 | for (i=0 ; i |
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653 | { |
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654 | if (nodeingame[i]) |
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655 | { |
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656 | numplaying++; |
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657 | if (nettics[i] < lowtic) |
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658 | lowtic = nettics[i]; |
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659 | } |
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660 | } |
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661 | availabletics = lowtic - gametic/ticdup; |
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662 | |||
663 | // decide how many tics to run |
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664 | if (realtics < availabletics-1) |
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665 | counts = realtics+1; |
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666 | else if (realtics < availabletics) |
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667 | counts = realtics; |
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668 | else |
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669 | counts = availabletics; |
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670 | |||
671 | if (counts < 1) |
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672 | counts = 1; |
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673 | |||
674 | frameon++; |
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675 | |||
676 | if (debugfile) |
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677 | fprintf (debugfile, |
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678 | "=======real: %i avail: %i game: %i\n", |
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679 | realtics, availabletics,counts); |
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680 | |||
681 | if (!demoplayback) |
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682 | { |
||
683 | // ideally nettics[0] should be 1 - 3 tics above lowtic |
||
684 | // if we are consistantly slower, speed up time |
||
685 | for (i=0 ; i |
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686 | if (playeringame[i]) |
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687 | break; |
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688 | if (consoleplayer == i) |
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689 | { |
||
690 | // the key player does not adapt |
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691 | } |
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692 | else |
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693 | { |
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694 | if (nettics[0] <= nettics[nodeforplayer[i]]) |
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695 | { |
||
696 | gametime--; |
||
697 | // printf ("-"); |
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698 | } |
||
699 | frameskip[frameon&3] = (oldnettics > nettics[nodeforplayer[i]]); |
||
700 | oldnettics = nettics[0]; |
||
701 | if (frameskip[0] && frameskip[1] && frameskip[2] && frameskip[3]) |
||
702 | { |
||
703 | skiptics = 1; |
||
704 | // printf ("+"); |
||
705 | } |
||
706 | } |
||
707 | }// demoplayback |
||
708 | |||
709 | // wait for new tics if needed |
||
710 | while (lowtic < gametic/ticdup + counts) |
||
711 | { |
||
712 | NetUpdate (); |
||
713 | lowtic = MAXINT; |
||
714 | |||
715 | for (i=0 ; i |
||
716 | if (nodeingame[i] && nettics[i] < lowtic) |
||
717 | lowtic = nettics[i]; |
||
718 | |||
719 | if (lowtic < gametic/ticdup) |
||
720 | I_Error ("TryRunTics: lowtic < gametic"); |
||
721 | |||
722 | // don't stay in here forever -- give the menu a chance to work |
||
723 | if (I_GetTime ()/ticdup - entertic >= 20) |
||
724 | { |
||
725 | M_Ticker (); |
||
726 | return; |
||
727 | } |
||
728 | } |
||
729 | |||
730 | // run the count * ticdup dics |
||
731 | while (counts--) |
||
732 | { |
||
733 | for (i=0 ; i |
||
734 | { |
||
735 | if (gametic/ticdup > lowtic) |
||
736 | I_Error ("gametic>lowtic"); |
||
737 | if (advancedemo) |
||
738 | D_DoAdvanceDemo (); |
||
739 | M_Ticker (); |
||
740 | G_Ticker (); |
||
741 | gametic++; |
||
742 | |||
743 | // modify command for duplicated tics |
||
744 | if (i != ticdup-1) |
||
745 | { |
||
746 | ticcmd_t *cmd; |
||
747 | int buf; |
||
748 | int j; |
||
749 | |||
750 | buf = (gametic/ticdup)%BACKUPTICS; |
||
751 | for (j=0 ; j |
||
752 | { |
||
753 | cmd = &netcmds[j][buf]; |
||
754 | cmd->chatchar = 0; |
||
755 | if (cmd->buttons & BT_SPECIAL) |
||
756 | cmd->buttons = 0; |
||
757 | } |
||
758 | } |
||
759 | } |
||
760 | NetUpdate (); // check for new console commands |
||
761 | } |
||
762 | }>>>>=>>>>>4>1) |