sv_demo.c

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