Convert to ObjC++
FossilOrigin-Name: 7c2704b3d77d6e63d960e315bfb601fddbf6fce538b7c5db6da664e04fbce4c2
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04fa50a332
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34 changed files with 87 additions and 79 deletions
494
src/savegamedemo.mm
Normal file
494
src/savegamedemo.mm
Normal file
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// loading and saving of savegames & demos, dumps the spawn state of all
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// mapents, the full state of all dynents (monsters + player)
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#include "cube.h"
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extern int islittleendian;
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gzFile f = NULL;
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bool demorecording = false;
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bool demoplayback = false;
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bool demoloading = false;
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dvector playerhistory;
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int democlientnum = 0;
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void startdemo();
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void
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gzput(int i)
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{
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gzputc(f, i);
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};
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void
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gzputi(int i)
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{
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gzwrite(f, &i, sizeof(int));
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};
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void
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gzputv(vec &v)
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{
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gzwrite(f, &v, sizeof(vec));
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};
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void
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gzcheck(int a, int b)
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{
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if (a != b)
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fatal("savegame file corrupt (short)");
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};
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int
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gzget()
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{
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char c = gzgetc(f);
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return c;
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};
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int
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gzgeti()
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{
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int i;
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gzcheck(gzread(f, &i, sizeof(int)), sizeof(int));
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return i;
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};
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void
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gzgetv(vec &v)
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{
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gzcheck(gzread(f, &v, sizeof(vec)), sizeof(vec));
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};
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void
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stop()
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{
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if (f) {
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if (demorecording)
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gzputi(-1);
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gzclose(f);
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};
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f = NULL;
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demorecording = false;
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demoplayback = false;
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demoloading = false;
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loopv(playerhistory) zapdynent(playerhistory[i]);
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playerhistory.setsize(0);
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};
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void
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stopifrecording()
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{
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if (demorecording)
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stop();
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};
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void
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savestate(char *fn)
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{
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stop();
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f = gzopen(fn, "wb9");
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if (!f) {
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conoutf("could not write %s", fn);
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return;
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};
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gzwrite(f, (void *)"CUBESAVE", 8);
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gzputc(f, islittleendian);
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gzputi(SAVEGAMEVERSION);
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gzputi(sizeof(dynent));
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gzwrite(f, getclientmap(), _MAXDEFSTR);
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gzputi(gamemode);
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gzputi(ents.length());
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loopv(ents) gzputc(f, ents[i].spawned);
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gzwrite(f, player1, sizeof(dynent));
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dvector &monsters = getmonsters();
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gzputi(monsters.length());
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loopv(monsters) gzwrite(f, monsters[i], sizeof(dynent));
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gzputi(players.length());
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loopv(players)
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{
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gzput(players[i] == NULL);
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gzwrite(f, players[i], sizeof(dynent));
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};
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};
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void
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savegame(char *name)
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{
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if (!m_classicsp) {
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conoutf("can only save classic sp games");
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return;
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};
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sprintf_sd(fn)("savegames/%s.csgz", name);
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savestate(fn);
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stop();
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conoutf("wrote %s", fn);
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};
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void
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loadstate(char *fn)
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{
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stop();
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if (multiplayer())
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return;
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f = gzopen(fn, "rb9");
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if (!f) {
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conoutf("could not open %s", fn);
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return;
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};
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string buf;
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gzread(f, buf, 8);
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if (strncmp(buf, "CUBESAVE", 8))
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goto out;
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if (gzgetc(f) != islittleendian)
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goto out; // not supporting save->load accross incompatible
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// architectures simpifies things a LOT
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if (gzgeti() != SAVEGAMEVERSION || gzgeti() != sizeof(dynent))
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goto out;
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string mapname;
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gzread(f, mapname, _MAXDEFSTR);
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nextmode = gzgeti();
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changemap(mapname); // continue below once map has been loaded and
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// client & server have updated
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return;
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out:
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conoutf("aborting: savegame/demo from a different version of cube or "
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"cpu architecture");
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stop();
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};
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void
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loadgame(char *name)
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{
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sprintf_sd(fn)("savegames/%s.csgz", name);
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loadstate(fn);
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};
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void
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loadgameout()
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{
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stop();
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conoutf("loadgame incomplete: savegame from a different version of "
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"this map");
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};
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void
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loadgamerest()
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{
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if (demoplayback || !f)
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return;
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if (gzgeti() != ents.length())
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return loadgameout();
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loopv(ents)
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{
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ents[i].spawned = gzgetc(f) != 0;
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if (ents[i].type == CARROT && !ents[i].spawned)
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trigger(ents[i].attr1, ents[i].attr2, true);
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};
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restoreserverstate(ents);
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gzread(f, player1, sizeof(dynent));
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player1->lastaction = lastmillis;
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int nmonsters = gzgeti();
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dvector &monsters = getmonsters();
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if (nmonsters != monsters.length())
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return loadgameout();
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loopv(monsters)
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{
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gzread(f, monsters[i], sizeof(dynent));
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monsters[i]->enemy =
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player1; // lazy, could save id of enemy instead
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monsters[i]->lastaction = monsters[i]->trigger =
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lastmillis +
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500; // also lazy, but no real noticable effect on game
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if (monsters[i]->state == CS_DEAD)
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monsters[i]->lastaction = 0;
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};
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restoremonsterstate();
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int nplayers = gzgeti();
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loopi(nplayers) if (!gzget())
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{
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dynent *d = getclient(i);
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assert(d);
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gzread(f, d, sizeof(dynent));
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};
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conoutf("savegame restored");
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if (demoloading)
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startdemo();
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else
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stop();
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};
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// demo functions
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int starttime = 0;
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int playbacktime = 0;
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int ddamage, bdamage;
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vec dorig;
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void
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record(char *name)
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{
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if (m_sp) {
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conoutf("cannot record singleplayer games");
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return;
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};
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int cn = getclientnum();
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if (cn < 0)
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return;
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sprintf_sd(fn)("demos/%s.cdgz", name);
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savestate(fn);
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gzputi(cn);
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conoutf("started recording demo to %s", fn);
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demorecording = true;
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starttime = lastmillis;
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ddamage = bdamage = 0;
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};
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void
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demodamage(int damage, vec &o)
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{
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ddamage = damage;
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dorig = o;
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};
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void
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demoblend(int damage)
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{
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bdamage = damage;
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};
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void
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incomingdemodata(uchar *buf, int len, bool extras)
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{
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if (!demorecording)
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return;
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gzputi(lastmillis - starttime);
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gzputi(len);
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gzwrite(f, buf, len);
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gzput(extras);
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if (extras) {
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gzput(player1->gunselect);
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gzput(player1->lastattackgun);
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gzputi(player1->lastaction - starttime);
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gzputi(player1->gunwait);
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gzputi(player1->health);
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gzputi(player1->armour);
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gzput(player1->armourtype);
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loopi(NUMGUNS) gzput(player1->ammo[i]);
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gzput(player1->state);
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gzputi(bdamage);
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bdamage = 0;
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gzputi(ddamage);
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if (ddamage) {
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gzputv(dorig);
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ddamage = 0;
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};
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// FIXME: add all other client state which is not send through
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// the network
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};
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};
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void
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demo(char *name)
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{
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sprintf_sd(fn)("demos/%s.cdgz", name);
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loadstate(fn);
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demoloading = true;
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};
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void
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stopreset()
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{
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conoutf("demo stopped (%d msec elapsed)", lastmillis - starttime);
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stop();
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loopv(players) zapdynent(players[i]);
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disconnect(0, 0);
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};
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VAR(demoplaybackspeed, 10, 100, 1000);
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int
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scaletime(int t)
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{
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return (int)(t * (100.0f / demoplaybackspeed)) + starttime;
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};
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void
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readdemotime()
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{
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if (gzeof(f) || (playbacktime = gzgeti()) == -1) {
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stopreset();
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return;
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};
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playbacktime = scaletime(playbacktime);
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};
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void
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startdemo()
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{
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democlientnum = gzgeti();
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demoplayback = true;
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starttime = lastmillis;
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conoutf("now playing demo");
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dynent *d = getclient(democlientnum);
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assert(d);
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*d = *player1;
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readdemotime();
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};
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VAR(demodelaymsec, 0, 120, 500);
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void
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catmulrom(
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vec &z, vec &a, vec &b, vec &c, float s, vec &dest) // spline interpolation
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{
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vec t1 = b, t2 = c;
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vsub(t1, z);
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vmul(t1, 0.5f) vsub(t2, a);
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vmul(t2, 0.5f);
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float s2 = s * s;
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float s3 = s * s2;
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dest = a;
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vec t = b;
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vmul(dest, 2 * s3 - 3 * s2 + 1);
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vmul(t, -2 * s3 + 3 * s2);
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vadd(dest, t);
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vmul(t1, s3 - 2 * s2 + s);
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vadd(dest, t1);
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vmul(t2, s3 - s2);
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vadd(dest, t2);
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};
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void
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fixwrap(dynent *a, dynent *b)
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{
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while (b->yaw - a->yaw > 180)
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a->yaw += 360;
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while (b->yaw - a->yaw < -180)
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a->yaw -= 360;
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};
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void
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demoplaybackstep()
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{
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while (demoplayback && lastmillis >= playbacktime) {
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int len = gzgeti();
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if (len < 1 || len > MAXTRANS) {
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conoutf(
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"error: huge packet during demo play (%d)", len);
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stopreset();
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return;
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};
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uchar buf[MAXTRANS];
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gzread(f, buf, len);
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localservertoclient(buf, len); // update game state
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dynent *target = players[democlientnum];
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assert(target);
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int extras;
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if (extras = gzget()) // read additional client side state not
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// present in normal network stream
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{
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target->gunselect = gzget();
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target->lastattackgun = gzget();
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target->lastaction = scaletime(gzgeti());
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target->gunwait = gzgeti();
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target->health = gzgeti();
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target->armour = gzgeti();
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target->armourtype = gzget();
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loopi(NUMGUNS) target->ammo[i] = gzget();
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target->state = gzget();
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target->lastmove = playbacktime;
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if (bdamage = gzgeti())
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damageblend(bdamage);
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if (ddamage = gzgeti()) {
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gzgetv(dorig);
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particle_splash(3, ddamage, 1000, dorig);
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};
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// FIXME: set more client state here
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};
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// insert latest copy of player into history
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if (extras &&
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(playerhistory.empty() ||
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playerhistory.last()->lastupdate != playbacktime)) {
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dynent *d = newdynent();
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*d = *target;
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d->lastupdate = playbacktime;
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playerhistory.add(d);
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if (playerhistory.length() > 20) {
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zapdynent(playerhistory[0]);
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playerhistory.remove(0);
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};
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};
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readdemotime();
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};
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if (demoplayback) {
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int itime = lastmillis - demodelaymsec;
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loopvrev(playerhistory) if (playerhistory[i]->lastupdate <
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itime) // find 2 positions in
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// history that surround
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// interpolation time point
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{
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dynent *a = playerhistory[i];
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dynent *b = a;
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if (i + 1 < playerhistory.length())
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b = playerhistory[i + 1];
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*player1 = *b;
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if (a != b) // interpolate pos & angles
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{
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dynent *c = b;
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if (i + 2 < playerhistory.length())
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c = playerhistory[i + 2];
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dynent *z = a;
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if (i - 1 >= 0)
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z = playerhistory[i - 1];
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// if(a==z || b==c) printf("* %d\n",
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// lastmillis);
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float bf =
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(itime - a->lastupdate) /
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(float)(b->lastupdate - a->lastupdate);
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fixwrap(a, player1);
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fixwrap(c, player1);
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fixwrap(z, player1);
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vdist(dist, v, z->o, c->o);
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if (dist < 16) // if teleport or spawn, dont't
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// interpolate
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{
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catmulrom(z->o, a->o, b->o, c->o, bf,
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player1->o);
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catmulrom(*(vec *)&z->yaw,
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*(vec *)&a->yaw, *(vec *)&b->yaw,
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*(vec *)&c->yaw, bf,
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*(vec *)&player1->yaw);
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};
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fixplayer1range();
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};
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break;
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};
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// if(player1->state!=CS_DEAD) showscores(false);
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};
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};
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void
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stopn()
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{
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if (demoplayback)
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stopreset();
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else
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stop();
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conoutf("demo stopped");
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};
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COMMAND(record, ARG_1STR);
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COMMAND(demo, ARG_1STR);
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COMMANDN(stop, stopn, ARG_NONE);
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COMMAND(savegame, ARG_1STR);
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COMMAND(loadgame, ARG_1STR);
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