void G_DoLoadGame(void) {
CON_DPrintf("--------Loading game--------\n");
if(!P_ReadSaveGame(savename)) {
gameaction = ga_nothing;
players[consoleplayer].message = "couldn't load game!";
return;
}
}
void G_DoSaveGame(void) {
CON_DPrintf("--------Saving game--------\n");
if(!P_WriteSaveGame(savedescription, savegameslot)) {
players[consoleplayer].message = "couldn't save game!";
return;
}
savedescription[0] = 0;
players[consoleplayer].message = GGSAVED;
}
void G_PlayDemo(const char* name) {
int i;
int p;
char filename[256];
gameaction = ga_nothing;
endDemo = false;
p = M_CheckParm("-playdemo");
if(p && p < myargc-1) {
// 20120107 bkw: add .lmp extension if missing.
if(dstrrchr(myargv[p+1], '.')) {
dstrcpy(filename, myargv[p+1]);
}
else {
dsprintf(filename, "%s.lmp", myargv[p+1]);
}
CON_DPrintf("--------Reading demo %s--------\n", filename);
if(M_ReadFile(filename, &demobuffer) == -1) {
gameaction = ga_exitdemo;
return;
}
demo_p = demobuffer;
}
else {
if(W_CheckNumForName(name) == -1) {
gameaction = ga_exitdemo;
return;
}
CON_DPrintf("--------Playing demo %s--------\n", name);
demobuffer = demo_p = W_CacheLumpName(name, PU_STATIC);
}
if(strncmp((char*)demo_p, "DM64", 4)) {
I_Error("G_PlayDemo: Mismatched demo header");
return;
}
G_SaveDefaults();
demo_p++;
demo_p++;
demo_p++;
demo_p++;
demo_p++;
startskill = *demo_p++;
startmap = *demo_p++;
deathmatch = *demo_p++;
respawnparm = *demo_p++;
respawnitem = *demo_p++;
fastparm = *demo_p++;
nomonsters = *demo_p++;
consoleplayer = *demo_p++;
rngseed = *demo_p++ & 0xff;
rngseed <<= 8;
rngseed += *demo_p++ & 0xff;
rngseed <<= 8;
rngseed += *demo_p++ & 0xff;
rngseed <<= 8;
rngseed += *demo_p++ & 0xff;
gameflags = *demo_p++ & 0xff;
gameflags <<= 8;
gameflags += *demo_p++ & 0xff;
gameflags <<= 8;
gameflags += *demo_p++ & 0xff;
gameflags <<= 8;
gameflags += *demo_p++ & 0xff;
compatflags = *demo_p++ & 0xff;
compatflags <<= 8;
compatflags += *demo_p++ & 0xff;
compatflags <<= 8;
compatflags += *demo_p++ & 0xff;
compatflags <<= 8;
compatflags += *demo_p++ & 0xff;
for(i = 0; i < MAXPLAYERS; i++) {
playeringame[i] = *demo_p++;
}
G_InitNew(startskill, startmap);
if(playeringame[1]) {
netgame = true;
netdemo = true;
}
precache = true;
usergame = false;
demoplayback = true;
G_RunGame();
iwadDemo = false;
}
void G_RecordDemo(const char* name) {
byte *demostart, *dm_p;
int i;
demofp = NULL;
endDemo = false;
dstrcpy(demoname, name);
dstrcat(demoname, ".lmp");
if(access(demoname, F_OK)) {
demofp = fopen(demoname, "wb");
}
else {
int demonum = 0;
while(demonum < 10000) {
sprintf(demoname, "%s%i.lmp", name, demonum);
if(access(demoname, F_OK)) {
demofp = fopen(demoname, "wb");
break;
}
demonum++;
}
// so yeah... dunno how to properly handle this...
if(demonum >= 10000) {
I_Error("G_RecordDemo: file %s already exists", demoname);
return;
}
}
CON_DPrintf("--------Recording %s--------\n", demoname);
demostart = dm_p = malloc(1000);
G_InitNew(startskill, startmap);
*dm_p++ = 'D';
*dm_p++ = 'M';
*dm_p++ = '6';
*dm_p++ = '4';
*dm_p++ = '\0';
*dm_p++ = gameskill;
*dm_p++ = gamemap;
*dm_p++ = deathmatch;
*dm_p++ = respawnparm;
*dm_p++ = respawnitem;
*dm_p++ = fastparm;
*dm_p++ = nomonsters;
*dm_p++ = consoleplayer;
*dm_p++ = (byte)((rngseed >> 24) & 0xff);
*dm_p++ = (byte)((rngseed >> 16) & 0xff);
*dm_p++ = (byte)((rngseed >> 8) & 0xff);
*dm_p++ = (byte)( rngseed & 0xff);
*dm_p++ = (byte)((gameflags >> 24) & 0xff);
*dm_p++ = (byte)((gameflags >> 16) & 0xff);
*dm_p++ = (byte)((gameflags >> 8) & 0xff);
*dm_p++ = (byte)( gameflags & 0xff);
*dm_p++ = (byte)((compatflags >> 24) & 0xff);
*dm_p++ = (byte)((compatflags >> 16) & 0xff);
*dm_p++ = (byte)((compatflags >> 8) & 0xff);
*dm_p++ = (byte)( compatflags & 0xff);
for(i = 0; i < MAXPLAYERS; i++) {
*dm_p++ = playeringame[i];
}
if(fwrite(demostart, 1, dm_p-demostart, demofp) != (size_t)(dm_p-demostart)) {
I_Error("G_RecordDemo: Error writing demo header");
}
free(demostart);
demorecording = true;
usergame = false;
G_RunGame();
G_CheckDemoStatus();
}
