sv_demo.c

   1 #include "quakedef.h"
   2 #include "sv_demo.h"
   3
   4 extern cvar_t sv_autodemo_perclient_discardable;
   5
   6 void SV_StartDemoRecording(client_t *client, const char *filename, int forcetrack)
   7 {
   8         char name[MAX_QPATH];
   9         prvm_eval_t *val;
  10
  11         if(client->sv_demo_file != NULL)
  12                 return; // we already have a demo
  13
  14         strlcpy(name, filename, sizeof(name));
  15         FS_DefaultExtension(name, ".dem", sizeof(name));
  16
  17         Con_Printf("Recording demo for # %d (%s) to %s\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress, name);
  18
  19         // Reset discardable flag for every new demo.
  20         if ((val = PRVM_EDICTFIELDVALUE(client->edict, prog->fieldoffsets.discardabledemo)))
  21                 val->_float = 0;
  22
  23         client->sv_demo_file = FS_OpenRealFile(name, "wb", false);
  24         if(!client->sv_demo_file)
  25         {
  26                 Con_Print("ERROR: couldn't open.\n");
  27                 return;
  28         }
  29
  30         FS_Printf(client->sv_demo_file, "%i\n", forcetrack);
  31 }
  32
  33 void SV_WriteDemoMessage(client_t *client, sizebuf_t *sendbuffer, qboolean clienttoserver)
  34 {
  35         int len, i;
  36         float f;
  37         int temp;
  38
  39         if(client->sv_demo_file == NULL)
  40                 return;
  41         if(sendbuffer->cursize == 0)
  42                 return;
  43
  44         temp = sendbuffer->cursize | (clienttoserver ? DEMOMSG_CLIENT_TO_SERVER : 0);
  45         len = LittleLong(temp);
  46         FS_Write(client->sv_demo_file, &len, 4);
  47         for(i = 0; i < 3; ++i)
  48         {
  49                 f = LittleFloat(client->edict->fields.server->v_angle[i]);
  50                 FS_Write(client->sv_demo_file, &f, 4);
  51         }
  52         FS_Write(client->sv_demo_file, sendbuffer->data, sendbuffer->cursize);
  53 }
  54
  55 void SV_StopDemoRecording(client_t *client)
  56 {
  57         sizebuf_t buf;
  58         unsigned char bufdata[64];
  59         prvm_eval_t *val;
  60
  61         if(client->sv_demo_file == NULL)
  62                 return;
  63
  64         buf.data = bufdata;
  65         buf.maxsize = sizeof(bufdata);
  66         SZ_Clear(&buf);
  67         MSG_WriteByte(&buf, svc_disconnect);
  68         SV_WriteDemoMessage(client, &buf, false);
  69
  70         if (sv_autodemo_perclient_discardable.integer && (val = PRVM_EDICTFIELDVALUE(client->edict, prog->fieldoffsets.discardabledemo)) && val->_float)
  71         {
  72                 FS_RemoveOnClose(client->sv_demo_file);
  73                 Con_Printf("Stopped recording discardable demo for # %d (%s)\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress);
  74         }
  75         else
  76                 Con_Printf("Stopped recording demo for # %d (%s)\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress);
  77
  78         FS_Close(client->sv_demo_file);
  79         client->sv_demo_file = NULL;
  80 }
  81
  82 void SV_WriteNetnameIntoDemo(client_t *client)
  83 {
  84         // This "pseudo packet" is written so a program can easily find out whose demo this is
  85         sizebuf_t buf;
  86         unsigned char bufdata[128];
  87
  88         if(client->sv_demo_file == NULL)
  89                 return;
  90
  91         buf.data = bufdata;
  92         buf.maxsize = sizeof(bufdata);
  93         SZ_Clear(&buf);
  94         MSG_WriteByte(&buf, svc_stufftext);
  95         MSG_WriteUnterminatedString(&buf, "\n// this demo contains the point of view of: ");
  96         MSG_WriteUnterminatedString(&buf, client->name);
  97         MSG_WriteString(&buf, "\n");
  98         SV_WriteDemoMessage(client, &buf, false);
  99 }