sv_autodemo_perclient - record client-like demos on the server (same format, lagged...

[xonotic/darkplaces.git] / sv_demo.c

diff --git a/sv_demo.c b/sv_demo.c
new file mode 100644 (file)
index 0000000..3ba4349
--- /dev/null
+++ b/sv_demo.c
@@ -0,0 +1,82 @@
+#include "quakedef.h"
+#include "sv_demo.h"
+
+void SV_StartDemoRecording(client_t *client, const char *filename, int forcetrack)
+{
+       char name[MAX_QPATH];
+
+       if(client->sv_demo_file != NULL)
+               return; // we already have a demo
+
+       strlcpy(name, filename, sizeof(name));
+       FS_DefaultExtension(name, ".dem", sizeof(name));
+
+       Con_Printf("Recording demo for # %d (%s) to %s\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress, name);
+
+       client->sv_demo_file = FS_Open(name, "wb", false, false);
+       if(!client->sv_demo_file)
+       {
+               Con_Print("ERROR: couldn't open.\n");
+               return;
+       }
+
+       FS_Printf(client->sv_demo_file, "%i\n", forcetrack);
+}
+
+void SV_WriteDemoMessage(client_t *client, sizebuf_t *sendbuffer)
+{
+       int len, i;
+       float f;
+
+       if(client->sv_demo_file == NULL)
+               return;
+       if(sendbuffer->cursize == 0)
+               return;
+       
+       len = LittleLong(sendbuffer->cursize);
+       FS_Write(client->sv_demo_file, &len, 4);
+       for(i = 0; i < 3; ++i)
+       {
+               f = LittleFloat(client->edict->fields.server->v_angle[i]);
+               FS_Write(client->sv_demo_file, &f, 4);
+       }
+       FS_Write(client->sv_demo_file, sendbuffer->data, sendbuffer->cursize);
+}
+
+void SV_StopDemoRecording(client_t *client)
+{
+       sizebuf_t buf;
+       unsigned char bufdata[64];
+
+       if(client->sv_demo_file == NULL)
+               return;
+       
+       buf.data = bufdata;
+       buf.maxsize = sizeof(bufdata);
+       SZ_Clear(&buf);
+       MSG_WriteByte(&buf, svc_disconnect);
+       SV_WriteDemoMessage(client, &buf);
+
+       FS_Close(client->sv_demo_file);
+       client->sv_demo_file = NULL;
+       Con_Printf("Stopped recording demo for # %d (%s)\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress);
+}
+
+void SV_WriteNetnameIntoDemo(client_t *client)
+{
+       // This "pseudo packet" is written so a program can easily find out whose demo this is
+       sizebuf_t buf;
+       unsigned char bufdata[128];
+
+       if(client->sv_demo_file == NULL)
+               return;
+
+       buf.data = bufdata;
+       buf.maxsize = sizeof(bufdata);
+       SZ_Clear(&buf);
+       MSG_WriteByte(&buf, svc_stufftext);
+       MSG_WriteUnterminatedString(&buf, "\n// this demo contains the point of view of: ");
+       MSG_WriteUnterminatedString(&buf, client->name);
+       MSG_WriteString(&buf, "\n");
+       SV_WriteDemoMessage(client, &buf);
+}