nexus/save.c

#include <assert.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sqlite3.h>
#include "defs.h"
#include "flag.h"
#include "io.h"
#include "lf.h"
#include "map.h"
#include "move.h"
#include "nexus.h"
#include "objects.h"
#include "save.h"
#include "text.h"
#include "vault.h"

extern long curtime;

extern lifeform_t *player;
extern map_t *firstmap;
extern race_t *firstrace;
extern knowledge_t *knowledge;
extern region_t *firstregion,*lastregion;
extern regionoutline_t *firstregionoutline,*lastregionoutline;

extern map_t *heaven;

extern long curtime, gamedays, gamesecs;

extern enum GAMEMODE gamemode;

// returns TRUE if we successfully loaded a save file
int loadall(void) {
	//int db = B_FALSE;
	int foundsavegame = B_FALSE;
	region_t *heavenregion;

	gamemode = GM_LOADING;

	if (loadsavegame()) {
		// update fixed region pointers
		heavenregion = findregionbytype(RG_HEAVEN);
		heaven = findregionmap(heavenregion->id, 1);
		foundsavegame = B_TRUE;
	}

	gamemode = GM_LOADED;

	return foundsavegame;
}

int loadflagpile(FILE *f, flagpile_t *fp) {
	flag_t tempflag;
	flag_t *fl;
	char buf[BUFLEN];
	int rv;
	int db = B_FALSE;

	rv = fscanf(f, "%d,%d,%d,%d,%d,%d,%d,%ld\n",
		&tempflag.id, &tempflag.nvals, &tempflag.val[0], &tempflag.val[1], &tempflag.val[2],&tempflag.lifetime, &tempflag.known,&tempflag.obfrom);

	while (tempflag.id != -1) {
		dblog("got flag id=%d\n",tempflag.id);
		// get flag text
		fgets(buf, BUFLEN, f);
		buf[strlen(buf)-1] = '\0'; // strip newline

		fl = addflag_real(fp, tempflag.id, 
			tempflag.val[0],
			tempflag.val[1],
			tempflag.val[2], strcmp(buf, "^^^") ? buf : NULL, tempflag.lifetime, tempflag.known, tempflag.obfrom);


		if (db) {
			dblog("--> added flag id=%d.  v0=%d, v1=%d, v2=%d, text=%s, lifetime=%d, known=%d, obfrom=%ld\n",fl->id, 
				fl->val[0], fl->val[1], fl->val[2], fl->text ? fl->text : "(null)", fl->lifetime, fl->known,fl->obfrom);
		}

		// load next one
		rv = fscanf(f, "%d,%d,%d,%d,%d,%d,%d,%ld\n",
			&tempflag.id, &tempflag.nvals, &tempflag.val[0], &tempflag.val[1], &tempflag.val[2],&tempflag.lifetime, &tempflag.known,&tempflag.obfrom);
		//dblog("fscanf returned  %d\n",rv);
	}
	return B_FALSE;
}

int loadknowledge(FILE *f) {
	int db = B_FALSE;
	char buf[BUFLEN];
	char line[BUFLEN];
	int otid,known;
	char hiddenname[BUFLEN]; 
	char *p,*dummy;
	if (db) dblog("--> Loading knowledge...\n");
	fscanf(f, "startknowledge\n");
	
	fgets(buf, BUFLEN, f);
	buf[strlen(buf)-1] = '\0'; // strip newline

	while (strcmp(buf, "endknowledge")) {
		//sscanf(buf, "%d^%s^%d",&otid, hiddenname, &known);
		strcpy(line, buf);
		p = strtok_r(line, "^", &dummy);
		otid = atoi(p);
		p = strtok_r(NULL, "^", &dummy);
		strcpy(hiddenname, p);
		p = strtok_r(NULL, "^", &dummy);
		known = atoi(p);
		addknowledge(otid, hiddenname, known);
		// get next line
		fgets(buf, BUFLEN, f);
		buf[strlen(buf)-1] = '\0'; // strip newline
	}
	
	return B_FALSE;
}

int loadvars(FILE *f) {
	int id;
	int db = B_FALSE;
	race_t *r;
	if (db) dblog("--> Loading knowledge...\n");
	fscanf(f, "startvars\n");
	fscanf(f, "curtime:%ld\n",&curtime);
	fscanf(f, "endvars\n");
	fscanf(f, "startknownraces\n");
	fscanf(f, "%d\n", &id);
	while (id != -1) {
		r = findrace(id);
		r->known = B_TRUE;
		fscanf(f, "%d\n", &id);
	}
	fscanf(f, "endknownraces\n");

	return B_FALSE;
}

// load and allocate one lifeform from given file
lifeform_t *loadlf(FILE *f, cell_t *where) {
	lifeform_t *l;
	int lfid, lfraceid;
	long obid;
	int rv;
	int i;
	char buf[BUFLEN];
	int obcount;
	int mapid;
	map_t *m;
	int x,y,level,newlevel;
	int db = B_TRUE;
	int matid;

	if (db) dblog("--> Loading lifeform...\n");

	fscanf(f, "startlf\n");
	fscanf(f, "lfid: %d\n",&lfid);
	fscanf(f, "race: %d\n",&lfraceid);
	fscanf(f, "map: %d\n",&mapid);
	fscanf(f, "pos: %d,%d\n",&x, &y);
	fscanf(f, "level: %d\n",&level);
	fscanf(f, "newlevel: %d\n",&newlevel);

	// find the map
	m = findmap(mapid);
	if (!m) {
		dblog("ERROR loading lf id %d:  can't find map id %d\n",lfid,mapid);
		exit(1);
	}
	if (where == NULL) {
		where = getcellat(m, x, y);
	}
	if (!m) {
		dblog("ERROR loading lf id %d:  can't find cell at %d,%d on map id %d\n",lfid,x,y,mapid);
		exit(1);
	}

	l = addlf(where, lfraceid,level);
	l->id = lfid;
	l->x = x;
	l->y = y;
	l->newlevel = newlevel;

	// load rest of this lf
	fscanf(f, "str: %d/%d\n",&l->att[A_STR],&l->baseatt[A_STR]);
	fscanf(f, "dex: %d/%d\n",&l->att[A_AGI],&l->baseatt[A_AGI]);
	fscanf(f, "int: %d/%d\n",&l->att[A_IQ],&l->baseatt[A_IQ]);
	fscanf(f, "xp: %ld\n",&l->xp);
	fscanf(f, "skillxp: %ld\n",&l->skillxp);
	fscanf(f, "totskillpoints: %ld\n",&l->totskillpoints);
	fscanf(f, "skp: %d\n",&l->skillpoints);
	fscanf(f, "contr: %d\n",&l->controller);
	fscanf(f, "hp: %d/%d\n",&l->hp, &l->maxhp);
	fscanf(f, "mp: %d/%d\n",&l->mp, &l->maxmp);
	fscanf(f, "stamina: %f\n",&l->stamina);
	fscanf(f, "alive: %d\n",&l->alive);
	fscanf(f, "lastdamtype: %d\n",(int *)&l->lastdamtype);

	fgets(buf, BUFLEN, f);			// lastdam
	buf[strlen(buf)-1] = '\0'; // strip newline
	l->lastdam = strdup(buf + 9); // after 'lastdam: '

	fscanf(f, "material: %d\n",&matid);
	l->material = findmaterial(matid);
	fscanf(f, "timespent: %d\n",&l->timespent);

	fscanf(f, "sorted: %d\n",&l->sorted);
	fscanf(f, "polyrevert: %d\n",&l->polyrevert);
	fscanf(f, "forgettimer: %f\n",&l->forgettimer);
	fscanf(f, "eyeadj: %d\n",&l->eyeadjustment);
	fscanf(f, "facing: %d\n",&l->facing);
	fscanf(f, "turncounter: %d\n",&l->turncounter);

	if (db) dblog("--> Got hp=%d/%d. timespend=%d. sorted=%d. Now loading flags.",l->hp,l->maxhp,l->timespent,l->sorted);

	// clear existing flags from addlf
	while (l->flags->first) {
		killflag(l->flags->first);
	}
	// load lf flags
	loadflagpile(f, l->flags);

	if (db) dblog("--> now loading objects");

	// load object list
	obcount = 0;
	obid = 9999; // for testing
	rv = fscanf(f, "ob:%ld\n",&obid);
	while (obid != -1) {
		if (db) dblog("--> Load ob id %d into list...",obid);
		l->pack->oblist[obcount] = obid;
		obcount++;
		fscanf(f, "ob:%ld\n",&obid);
	}
	// terminate with -1s!
	for (i = obcount ; i < MAXPILEOBS; i++) {
		l->pack->oblist[i] = -1;
	}
	if (db) dblog("--> Finished oblist. Found %d objects.",obcount);

	// now load object defs for this player!
	fscanf(f, "obdefs\n");
	for (i = 0; i < obcount; i++) {
		long thisid;
		if (db) dblog("--> Creating ob #%d for lf.",i);
		//if (db) dblog("-----> ob %d/%d...\n",i+1,obcount);
		if (loadob(f, l->pack, &thisid)) {
			dblog("Error - can't create object %d/%d!\n",i+1,obcount);
			exit(1);
		}
		if (db) dblog("----> done (id=%ld)",thisid);
	}

	// now repeat the above for polypack...
	obcount = 0;
	obid = 9998; // for testing
	rv = fscanf(f, "polyob:%ld\n",&obid);
	while (obid != -1) {
		if (db) dblog("--> Load ob id %d into polypack list...",obid);
		l->polypack->oblist[obcount] = obid;
		obcount++;
		fscanf(f, "polyob:%ld\n",&obid);
	}
	// terminate with -1s!
	for (i = obcount ; i < MAXPILEOBS; i++) {
		l->polypack->oblist[i] = -1;
	}
	if (db) dblog("--> Finished polypack oblist. Found %d objects.",obcount);
	// now load object defs for this lf's pack!
	fscanf(f, "polyobdefs\n");
	for (i = 0; i < obcount; i++) {
		long thisid;
		if (db) dblog("--> Creating polypack ob #%d for lf.",i);
		//if (db) dblog("-----> ob %d/%d...\n",i+1,obcount);
		if (loadob(f, l->polypack, &thisid)) {
			dblog("Error - can't create object %d/%d!\n",i+1,obcount);
			exit(1);
		}
		if (db) dblog("----> done (id=%ld)",thisid);
	}
	
	// is this the player?
	if (l->controller == C_PLAYER) {
		player = l;
	}

	sortlf(l->cell->map, l);
	return l;
}



map_t *loadmap(FILE *f) {
	char buf[BUFLEN];
	int obcount;
	int i;
	int x,y;
	int db = B_TRUE;
	enum HABITAT habitatid;
	int illum;
	lifeform_t *l;
	object_t *o;
	map_t *m;
	cell_t *dummycell;
	int regionid;

	// create map
	m = addmap();
	dummycell = malloc(sizeof(cell_t));
	dummycell->obpile = addobpile(NULL, dummycell, NULL);
	dummycell->map = m;
	dummycell->type = (celltype_t *)DUMMYCELLTYPE; // for debugging

	if (!m) {
		printf("Error creating map while loading.");
		return NULL;
	}

	// load map info
	if (db) dblog("--> Loading map info...\n");
	fscanf(f, "id:%d\n",&m->id); 		// map id
	fscanf(f, "region:%d\n",&regionid); 		// region id
	m->region = findregion(regionid);
	fscanf(f, "depth:%d\n",&m->depth); 	// map depth
	fgets(buf, BUFLEN, f);			// map name
	buf[strlen(buf)-1] = '\0'; // strip newline
	m->name = strdup(buf + 5); // after 'name:'
	fscanf(f, "habitat:%d\n",(int *)&habitatid); 	// habitat
	m->habitat = findhabitat(habitatid);
	fscanf(f, "seed:%u\n",&m->seed); 	// seed
	fscanf(f, "lastplayervisit:%ld\n",&m->lastplayervisit);
	fscanf(f, "dims:%d,%d\n",&m->w, &m->h);	// map dimensons
	fscanf(f, "illumination:%d\n",&illum);
	m->illumination = illum;
	fscanf(f, "nextmaps:\n");
	for (i = 0; i < MAXDIR_ORTH; i++) {
		fscanf(f, "%d\n",&m->nextmap[i]);	// map dimensons
	}
	if (db) dblog("--> Finished map info.  name='%s', dims=%d x %d\n",m->name, m->w, m->h);
	fscanf(f, "beingcreated:%d\n",&m->beingcreated); 		
	fscanf(f, "id:%d\n",&m->id); 		// map id

	// load lifeforms
	if (db) dblog("--> Loading lifeforms...\n");
	fscanf(f, "lifeforms:\n");

	fscanf(f, "%s\n",buf);
	while (!strcmp(buf ,"startlf")) {
		loadlf(f, dummycell);

		// check for more lifeforms...
		fscanf(f, "%s\n",buf);
	}

	// load room defs
	fscanf(f, "nrooms:%d\n",&m->nrooms);
	for (i = 0; i < m->nrooms; i++) {
		fscanf(f, "%d,%d,%d,%d,%d,%s\n",&m->room[i].id,
			&m->room[i].x1, &m->room[i].y1,
			&m->room[i].x2, &m->room[i].y2, buf);
		m->room[i].vault = findvault(buf);
	}


	// load cells
	if (db) dblog("--> Loading map cells...\n");
	fscanf(f, "cells:\n");
	for (y = 0; y < m->h; y++) {
		for (x = 0; x < m->w; x++) {
			cell_t *c;
			celltype_t *ct;
			int celltypeid;
			long obid;
			int temphab;
			int roomid;

			//if (db) dblog("cell %d,%d...",x,y);

			// allocate this cell
			c = addcell(m, x, y);

			// cell info
			fscanf(f, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
				&roomid, &celltypeid, &c->known, &c->knowntime, &c->knownglyph.ch, &c->knownglyph.colour, &c->visited, &c->lit, &c->origlit, &c->littimer,&c->locked, &temphab, &c->isroomwall);
			c->habitat = findhabitat(temphab);

			c->room = findroom(m, roomid);

			ct = findcelltype(celltypeid);
			if (ct) {
				c->type = ct;
			} else {
				dblog("ERROR loading map cells - can't find celltype id %ld\n",celltypeid);
				exit(1);
			}

			// cell objects
			obcount = 0;
			fscanf(f, "ob:%ld\n",&obid);
			while (obid != -1) {
				c->obpile->oblist[obcount] = obid;
				obcount++;
				fscanf(f, "ob:%ld\n",&obid);
			}
			// terminate with -1s!
			for (i = obcount ; i < MAXPILEOBS; i++) {
				c->obpile->oblist[i] = -1;
			}
		}
	}

	// load object definitions
	if (db) dblog("--> Loading object definitions for map obs...\n");
	fscanf(f, "MAPOBS:%d\n",&obcount); // how many obs?

	// create all objects in a dummy cell
	for (i = 0; i < obcount; i++) {
		long thisid;
		if (db) dblog("-----> loading into dummycell: mapob %d/%d...\n",i+1,obcount);
		if (loadob(f, dummycell->obpile, &thisid)) {
			dblog("Error - can't create object %d/%d!\n",i+1,obcount);
			exit(1);
		}
		if (db) dblog("----------> got obid %ld\n",thisid);	
		// check!
		if (!hasobid(dummycell->obpile, thisid)) {
			dblog("Error:  after loading obid %ld, can't find it in dummycell!\n",thisid);
			exit(1);
		}
	}

	// hand out the objects to lifeforms...
	/*
	for (l = m->lf ; l ; l = l->next) {
		int curob = 0;
		long obid;
		obid = l->pack->oblist[curob];
		while (obid != -1) {
			int found = B_FALSE;
			// find this ob id in the dummycell
			for (o = dummycell->obpile->first ; o ; o = nexto) {
				nexto = o->next;
				if (o->id == obid) {
					relinkob(o, l->pack);
					found = B_TRUE;
					break;
				}
			}
			if (!found) {
				dblog("Error loading obs - lf %d should have obid %ld but can't find it in dummycell.\n",l->id, obid);
				exit(1);
			}
			// next one
			curob++;
			obid = l->pack->oblist[curob];

		}
		// clear the oblist
		for (i = 0; i < MAXPILEOBS; i++)  {
			l->pack->oblist[i] = -1;
		}
		
	}
	*/

	// hand out objects to cells
	for (y = 0; y < m->h; y++) {
		for (x = 0; x < m->w; x++) {
			cell_t *c;
			long obid;
			int curob = 0;
			c = m->cell[y * m->w + x];

			obid = c->obpile->oblist[curob];
			dblog("Handing out objects to cell %d,%d\n",x,y);
			while (obid != -1) {
				dblog("   Looking for obid %ld in dummycell...",obid);
				// find this ob id in the dummycell
				o = hasobid(dummycell->obpile, obid);
				if (o) {
					dblog("   Got it.");
					relinkob(o, c->obpile);
				} else {
					dblog("   Error loading obs - cell %d,%d should have obid %ld but can't find it.\n",x,y, obid);
					exit(1);
				}
				// next one
				curob++;
				obid = c->obpile->oblist[curob];
			}
			// clear the oblist
			for (i = 0; i < MAXPILEOBS; i++)  {
				c->obpile->oblist[i] = -1;
			}
		
		}
	}

	// load flags
	loadflagpile(f, m->flags);

	// we are now finished loading from the file.

	// move lifeforms to their proper locations
	for (l = m->lf ; l ; l = l->next) {
		cell_t *c;
		c = getcellat(m, l->x, l->y);
		if (!c) {
			dblog("Error loading map - Can't find cell at %d,%d to place lifeform id %d.\n",
					l->x, l->y, l->id);
			exit(1);
		}
		movelf(l, c);
		//dblog("Moving lf %d to %d,%d\n",l->id, l->x, l->y);
	}

	free(dummycell);

	return m;
}

int loadob(FILE *f, obpile_t *op, long *id) {
	objecttype_t *ot;
	object_t *o;
	material_t *mat;
	long obid;
	int otid,matid;
	char buf[BUFLEN];
	int db = B_TRUE;

	fscanf(f, "id:%ld\n",&obid);
	fscanf(f, "type:%d\n",&otid);

	if (db) dblog("... loading object id %ld",obid);
	if (id) {
		*id = obid;
	}

	ot = findot(otid);
	if (!ot) {
		dblog("ERROR loading objects - can't find obtype id %d (obj id %ld)\n",otid,obid);
		return B_TRUE;
	}
	// create the object
	o = addobject(op, NULL, B_NOSTACK, B_FALSE, ot->id); // no stacking!

	// overwrite ob parameters 
	o->id = obid;
	fscanf(f, "material:%d\n",&matid);
	mat = findmaterial(matid);
	if (!mat) {
		dblog("ERROR loading objects - can't find material %d\n",matid);
		return B_TRUE;
	}
	o->material = mat;

	fscanf(f, "weight:%f\n",&o->weight);

	fgets(buf, BUFLEN, f);			// inscription
	buf[strlen(buf)-1] = '\0'; // strip newline
	o->inscription = strdup(buf + 6); // after 'inscr:'
	if (!strcmp(o->inscription, "^^^")) { // ie. if equal to ^^^...
		free(o->inscription);
		o->inscription = NULL;
	}
	fscanf(f, "letter:%c\n",&o->letter);
	fscanf(f, "bless:%d\n",&o->blessed);
	fscanf(f, "blessknown:%d\n",&o->blessknown);
	fscanf(f, "amt:%d\n",&o->amt);
	fscanf(f, "birthtime:%ld\n",&o->birthtime);

	// now remove ALL obejct flags (which were inherited
	// from the obtype during addobject() ). these will be
	// loaded in instead.

	while (o->flags->first) {
		killflag(o->flags->first);
	}

	fscanf(f, "flags:\n");

	dblog("About to start loading object flags...");
	loadflagpile(f, o->flags);

	fgets(buf, BUFLEN, f);// either 'obcontents:xx' or 'endob'
	if (strstarts(buf, "obcontents")) {
		// load this object's contents...
		char *p;
		char buf2[BUFLEN];
		int ncontents;
		int i;
		//dblog("got obcontents");
		// strip newline
		buf[strlen(buf)-1] = '\0';
		p = readuntil(buf2, buf, ':'); // ignore bit before : 
		p = readuntil(buf2, p, ')'); // ) will really be eol
		ncontents = atoi(buf2);
		for (i = 0 ; i < ncontents; i++) {
			loadob(f, o->contents, NULL);
		}
		fgets(buf, BUFLEN, f);// 'endobcontents'
		//dblog("want endobcontents, got: '%s'", buf);
		fgets(buf, BUFLEN, f);// 'endob'
		//dblog("want endob, got: '%s'", buf);
	} 
	if (strstarts(buf, "endob")) {
		// we got 'endob'
	} else {
		dblog("ERROR loading objects - expecting 'endob' but got '%s'\n",buf);
		exit(1);
	}

	//fscanf(f, "endob\n");
	return B_FALSE;
}

int loadregions(FILE *f) {
	int rtid,nthings,i,n;
	int numoutlines,numregions;
	int db = B_TRUE;
	int depthmod;

	fscanf(f, "start_regions\n");

	fscanf(f, "numoutlines:%d\n",&numoutlines);
	if (db) dblog("Found %d region outlines.\n",numoutlines);
	for (n = 0; n < numoutlines; n++) {
		regionthing_t *thing;
		fscanf(f, "startro\n");
		fscanf(f, "rtypeid:%d\n",&rtid); // region type id
		addregionoutline(rtid);

		fscanf(f, "nthings:%d\n",&nthings);
		for (i = 0; i < nthings; i++) {
			int depth,x,y,val,id;
			enum REGIONTHING whatkind;
			char buf[BUFLEN],*p;
			fscanf(f, "startthing\n");
			fscanf(f, "  thingid:%d\n",&id);
			fscanf(f, "  thingdepth:%d,%d,%d\n",&depth, &x, &y);
			fscanf(f, "  thingkind:%d\n",(int *)&whatkind);
			fscanf(f, "  thingval:%d\n",&val);
			fscanf(f, "  thingwhat:%s\n",buf);
			fscanf(f, "endthing\n");

			// replace ^ with ' ' in thingwhat
			for (p = buf ; *p; p++) {
				if (*p == '^') *p = ' ';
			}
			thing = addregionthing(lastregionoutline, depth, x, y, whatkind, val, streq(buf, "NULL") ? NULL : buf);
			thing->id = id;
		}
		fscanf(f, "endro\n");
		if (db) dblog("Loaded regionoutline #%d / %d",n+1, numoutlines);
	}

	// now load in the actual region->outline mappings
	fscanf(f, "numregions:%d\n",&numregions);
	if (db) dblog("Found %d regions.\n",numregions);
	for (n = 0; n < numregions; n++) {
		region_t *r;
		enum REGIONTYPE rtid;
		int rid;
		int outlineid,parentid,nthings,createdby;
		fscanf(f, "startregion\n");
		fscanf(f, "  rid:%d\n",(int *)&rid);
		fscanf(f, "  rtypeid:%d\n",(int *)&rtid);
		fscanf(f, "  outline:%d\n",&outlineid);
		fscanf(f, "  parentregion:%d\n",&parentid);
		fscanf(f, "  nthings:%d\n",&nthings);
		fscanf(f, "  depthmod:%d\n",&depthmod);
		fscanf(f, "  createdby:%d\n",&createdby);
		fscanf(f, "endregion\n");
		r = addregion(rtid, (parentid == -1) ? NULL : findregion(parentid), outlineid, depthmod, createdby);
		r->id = rid;
		r->nthings = nthings;
		if (db) dblog("Loaded region #%d / %d",n+1, numregions);
	}

	fscanf(f, "end_regions\n");

	return B_FALSE;
}

// returns TRUE if there was a savegame file.
int loadsavegame(void) {
	char filename[BUFLEN];
	FILE *f;
	int mapcount,i;

	// check for a save file...
	snprintf(filename, BUFLEN, "%s/game.sav",SAVEDIR);
	f = fopen(filename, "rt");
	if (!f) {
		// this isn't an error - just means no savegames
		dblog("No savegame found.");
		return B_FALSE;
	}

	// load region outlines
	if (loadregions(f)) {
		printf("No region data found in savegame file!");
		exit(1);
	}

	// load maps
	fscanf(f, "start_maps:%d\n",&mapcount);
	for (i = 0; i < mapcount; i++) {
		if (!loadmap(f)) {
			printf("Error loading map %d of %d!", i+1, mapcount);
			exit(1);
		}
	}
	fscanf(f, "end_maps\n");

	// load world data
	if (loadworlddata(f)) {
		printf("Error load world data from save file.");
		exit(1);
	}
	// load player
	if (!loadlf(f, NULL)) {
		printf("Error loading player from save file.");
		exit(1);
	}
	// load knowledge
	if (loadknowledge(f)) {
		printf("Error loading knowledge from save file.");
		exit(1);
	}
	// load game variables
	if (loadvars(f)) {
		printf("Error loading game variables from save file.");
		exit(1);
	}

	// successful load - close and kill the savegame file
	fclose(f);
	unlink(filename);

	return B_TRUE;
}

int savevars(FILE *f) {
	int db = B_FALSE;
	race_t *r;
	if (db) dblog("--> Saving knowledge...\n");
	fprintf(f, "startvars\n");
	fprintf(f, "curtime:%ld\n",curtime);
	fprintf(f, "endvars\n");
	fprintf(f, "startknownraces\n");
	for (r = firstrace ; r ; r = r->next) {
		if (r->known) {
			fprintf(f, "%d\n",r->id);
		}
	}
	fprintf(f, "-1\n");
	fprintf(f, "endknownraces\n");
	return B_FALSE;
}

int loadworlddata(FILE *f) {
	fscanf(f, "timedata:%ld,%ld,%ld\n",&curtime,&gamedays,&gamesecs);
	return B_FALSE;
}

int saveflagpile(FILE *f, flagpile_t *fp) {
	flag_t *fl;
	fprintf(f, "flags:\n");
	for (fl = fp->first ; fl ; fl = fl->next) {
		fprintf(f, "%d,%d,%d,%d,%d,%d,%d,%ld\n",
			fl->id, fl->nvals, fl->val[0], fl->val[1], fl->val[2],fl->lifetime,fl->known,fl->obfrom);
		if (!fl->text || !strcmp(fl->text, "")) {
			fprintf(f, "%s\n","^^^");
		} else {
			fprintf(f, "%s\n",fl->text);
		}
	}
	fprintf(f, "-1,-1,-1,-1,-1,-1,-1,-1\n");
	return B_FALSE;
}

int saveknowledge(FILE *f) {
	int db = B_FALSE;
	knowledge_t *k;
	if (db) dblog("--> Saving knowledge...\n");
	fprintf(f, "startknowledge\n");

	for (k = knowledge; k ; k = k->next) {
		fprintf(f, "%d^%s^%d\n",k->id, k->hiddenname, k->known);
	}
	fprintf(f, "endknowledge\n");
	
	return B_FALSE;
}

int savelf(FILE *f, lifeform_t *l) {
	object_t *o;
	int obcount = 0;
	// save this lf
	fprintf(f, "startlf\n");
	fprintf(f, "lfid: %d\n",l->id);
	fprintf(f, "race: %d\n",l->race->id);
	fprintf(f, "map: %d\n",l->cell->map->id);
	fprintf(f, "pos: %d,%d\n",l->cell->x, l->cell->y);
	fprintf(f, "level: %d\n",l->level);
	fprintf(f, "newlevel: %d\n",l->newlevel);
	// liefform will be created after loading the above.
	fprintf(f, "str: %d/%d\n",l->att[A_STR],l->baseatt[A_STR]);
	fprintf(f, "dex: %d/%d\n",l->att[A_AGI],l->baseatt[A_AGI]);
	fprintf(f, "int: %d/%d\n",l->att[A_IQ],l->baseatt[A_IQ]);
	fprintf(f, "xp: %ld\n",l->xp);
	fprintf(f, "skillxp: %ld\n",l->skillxp);
	fprintf(f, "totskillpoints: %ld\n",l->totskillpoints);
	fprintf(f, "skp: %d\n",l->skillpoints);
	fprintf(f, "contr: %d\n",l->controller);
	fprintf(f, "hp: %d/%d\n",l->hp, l->maxhp);
	fprintf(f, "mp: %d/%d\n",l->mp, l->maxmp);
	fprintf(f, "stamina: %f\n", l->stamina);
	fprintf(f, "alive: %d\n",l->alive);
	fprintf(f, "lastdamtype: %d\n",l->lastdamtype);
	fprintf(f, "lastdam: %s\n",l->lastdam);
	fprintf(f, "material: %d\n",l->material->id);
	fprintf(f, "timespent: %d\n",l->timespent);
	fprintf(f, "sorted: %d\n",l->sorted);
	fprintf(f, "polyrevert: %d\n",l->polyrevert);
	fprintf(f, "forgettimer: %f\n",l->forgettimer);
	fprintf(f, "eyeadj: %d\n",l->eyeadjustment);
	fprintf(f, "facing: %d\n",l->facing);
	fprintf(f, "turncounter: %d\n",l->turncounter);

	// lf flags
	saveflagpile(f, l->flags);

	// lifeform objects
	obcount = 0;
	for (o = l->pack->first ; o ; o = o->next) {
		fprintf(f, "ob:%ld\n",o->id);
		obcount++;
	}
	fprintf(f, "ob:-1\n");

	fprintf(f, "obdefs\n");

	// now save our object definitions
	for (o = l->pack->first ; o ; o = o->next) {
		saveob(f, o);
	}

	// lifeform polypack objects
	obcount = 0;
	for (o = l->polypack->first ; o ; o = o->next) {
		fprintf(f, "polyob:%ld\n",o->id);
		obcount++;
	}
	fprintf(f, "polyob:-1\n");
	fprintf(f, "polyobdefs\n");
	// now save our polypack object definitions
	for (o = l->polypack->first ; o ; o = o->next) {
		saveob(f, o);
	}

	return B_FALSE;
}
	
int savegame(void) {
	map_t *m;
	FILE *f;
	char buf[BUFLEN];
	int rv;
	int mapcount = 0;

	snprintf(buf, BUFLEN, "%s/game.sav",SAVEDIR);
	f = fopen(buf, "wt");
	if (!f) {
		msg("Could not open save file!");
		return B_TRUE;
	}

	rv = saveregions(f);
	if (rv) {
		msg("Could not save region data.");
		return B_TRUE;
	}

	for (m = firstmap; m ; m = m->next) {
		mapcount++;
	}

	fprintf(f, "start_maps:%d\n",mapcount);
	for (m = firstmap; m ; m = m->next) {
		// save world
		rv = savemap(f, m);
		if (rv) {
			msg("Could not save map '%s'",m->name);
			return B_TRUE;
		}
	}
	fprintf(f, "end_maps\n");
	// load world data
	saveworlddata(f);
	// save player + their objects
	savelf(f, player);
	saveknowledge(f);
	savevars(f);
	fclose(f);

	return B_FALSE;
}

int savemap(FILE *f, map_t *m) {
	int i;
	object_t *o;
	lifeform_t *l;
	int x,y;
	int obcount = 0;

	// save map info
	fprintf(f, "id:%d\n",m->id); 		// map id
	fprintf(f, "region:%d\n",m->region->id); 		// map region id
	fprintf(f, "depth:%d\n",m->depth); 		// map depth
	fprintf(f, "name:%s\n",m->name); 		// map name
	fprintf(f, "habitat:%d\n",m->habitat->id); 		// habitat
	fprintf(f, "seed:%u\n",m->seed); 		// seed
	fprintf(f, "lastplayervisit:%ld\n",m->lastplayervisit);
	fprintf(f, "dims:%d,%d\n",m->w, m->h);	// map dimensons
	fprintf(f, "illumination:%d\n",m->illumination); 		// seed
	fprintf(f, "nextmaps:\n");
	for (i = 0; i < MAXDIR_ORTH; i++) {
		fprintf(f, "%d\n",m->nextmap[i] );	// map dimensons
	}
	fprintf(f, "beingcreated:%d\n",m->beingcreated);

	// save all non-player lifeforms (includes their objects)
	fprintf(f, "lifeforms:\n");
	for (l = m->lf ; l ; l = l->next) {
		if (l->controller != C_PLAYER) { // don't save the player!
			savelf(f, l);
		}
	}
	fprintf(f, "endlifeforms\n");

	// save room defs
	fprintf(f, "nrooms:%d\n",m->nrooms);
	for (i = 0; i < m->nrooms; i++) {
		fprintf(f, "%d,%d,%d,%d,%d,%s\n",m->room[i].id,
			m->room[i].x1, m->room[i].y1,
			m->room[i].x2, m->room[i].y2,
			m->room[i].vault ? m->room[i].vault->id : "^^^");
	}

	// cells
	fprintf(f, "cells:\n");
	for (y = 0; y < m->h; y++) {
		for (x = 0; x < m->w; x++) {
			cell_t *c;
			c = getcellat(m, x, y);
			// cell info
			fprintf(f, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
				c->room ? c->room->id : -1, c->type->id, c->known, c->knowntime, c->knownglyph.ch, c->knownglyph.colour, c->visited,c->lit,c->origlit,c->littimer,c->locked, c->habitat->id, c->isroomwall );
			// cell objects
			for (o = c->obpile->first ; o ; o = o->next) {
				fprintf(f, "ob:%ld\n",o->id);
				obcount++;
			}
			fprintf(f, "ob:-1\n");
		}
	}


	// save object definitions from map cells
	fprintf(f, "MAPOBS:%d\n",obcount);
	for (y = 0; y < m->h; y++) {
		for (x = 0; x < m->w; x++) {
			cell_t *c;
			c = getcellat(m, x, y);
			// cell objects
			for (o = c->obpile->first ; o ; o = o->next) {
				saveob(f, o);
			}
		}
	}

	saveflagpile(f, m->flags);

	return B_FALSE;
}


int saveob(FILE *f, object_t *o) {
	object_t *oo;
	int ncontents;
	fprintf(f, "id:%ld\n",o->id);
	fprintf(f, "type:%d\n",o->type->id);
	fprintf(f, "material:%d\n",o->material->id);
	fprintf(f, "weight:%f\n",o->weight);
	fprintf(f, "inscr:%s\n",o->inscription ? o->inscription : "^^^");
	fprintf(f, "letter:%c\n",o->letter);
	fprintf(f, "bless:%d\n",o->blessed);
	fprintf(f, "blessknown:%d\n",o->blessknown);
	fprintf(f, "amt:%d\n",o->amt);
	fprintf(f, "birthtime:%ld\n",o->birthtime);
	saveflagpile(f, o->flags);
	// object contents...
	ncontents = countobs(o->contents, B_FALSE);
	if (ncontents) {
		fprintf(f, "obcontents:%d\n",ncontents);
		for (oo = o->contents->first ; oo ; oo = oo->next) {
			saveob(f, oo);
		}
		fprintf(f, "endobcontents\n");
	}
	fprintf(f, "endob\n");
	return B_FALSE;
}

int saveregions(FILE *f) {
	int i;
	regionoutline_t *ro;
	region_t *r;
	int numoutlines = 0,numregions = 0;

	fprintf(f, "start_regions\n");
	for (ro = firstregionoutline ; ro ; ro = ro->next) {
		numoutlines++;
	}
	fprintf(f, "numoutlines:%d\n",numoutlines);

	for (ro = firstregionoutline ; ro ; ro = ro->next) {
		// save this outline
		fprintf(f, "startro\n");
		fprintf(f, "rtypeid:%d\n",ro->rtype->id); // region type id
		fprintf(f, "nthings:%d\n",ro->nthings);
		for (i = 0; i < ro->nthings; i++) {
			fprintf(f, "startthing\n");
			fprintf(f, "  thingid:%d\n",(int)ro->thing[i].id);
			fprintf(f, "  thingdepth:%d,%d,%d\n",ro->thing[i].depth, ro->thing[i].x, ro->thing[i].y);
			fprintf(f, "  thingkind:%d\n",(int)ro->thing[i].whatkind);
			fprintf(f, "  thingval:%d\n",(int)ro->thing[i].value);
			if (strlen(ro->thing[i].what)) {
				char localwhat[BUFLEN],*p;
				strcpy(localwhat,ro->thing[i].what);
				for (p = localwhat ; *p; p++) {
					if (*p == ' ') *p = '^';
				}
				fprintf(f, "  thingwhat:%s\n",localwhat);
			} else {
				fprintf(f, "  thingwhat:NULL\n");
			}
			fprintf(f, "endthing\n");
		}
		fprintf(f, "endro\n");
	}


	// now save out the actual region->outline mappings
	numregions = 0;
	for (r = firstregion ; r; r = r->next) {
		numregions++;
	}
		
	fprintf(f, "numregions:%d\n",numregions);
	for (r = firstregion ; r; r = r->next) {
		fprintf(f, "startregion\n");
		fprintf(f, "  rid:%d\n",r->id);
		fprintf(f, "  rtypeid:%d\n",r->rtype->id);
		fprintf(f, "  outline:%d\n",r->outline ? r->outline->id : -1);
		fprintf(f, "  parentregion:%d\n",r->parentregion ? r->parentregion->id : -1);
		fprintf(f, "  nthings:%d\n",r->nthings);
		fprintf(f, "  depthmod:%d\n",r->depthmod);
		fprintf(f, "  createdby:%d\n",r->createdbymapid);
		fprintf(f, "endregion\n");
	}
	fprintf(f, "end_regions\n");
	
	return B_FALSE;
}

int saveworlddata(FILE *f) {
	fprintf(f, "timedata:%ld,%ld,%ld\n",curtime,gamedays,gamesecs);
	return B_FALSE;
}

int showhiscores(lifeform_t *lf, int min, int max) {
	sqlite3 *db;
	int rc;
	char filename[BUFLEN],*cmd;
	char *errmsg = NULL;
	char hilitescoretext[BUFLEN];
	long hilitescore = -1;

	if (lf && !lfhasflag(lf, F_NOSCORE)) {
		hilitescore = calcscore(lf);
	} else {
		hilitescore = -1;
	}
	// open database
	snprintf(filename, BUFLEN, "%s/hiscores.db", DATADIR);
	rc = sqlite3_open(filename, &db);
	if (rc) {
		msg("error opening hiscore file '%s'.\n",filename);
		dblog("error opening hiscore file '%s'.\n",filename);
		return B_TRUE;
	}

	// show top ten
	//snprintf(cmd, BUFLEN, "select * from hiscores order by score desc limit 10;");
	asprintf(&cmd, "select (select count(*) from hiscores b where b.score > a.score) + 1 as rank, score,name,job,killedby from hiscores a where (rank >= %d) and (rank <= %d) order by score desc limit 10;", min, max);

	snprintf(hilitescoretext, BUFLEN, "%ld",hilitescore);
	rc = sqlite3_exec(db, cmd, showhiscoreline, hilitescoretext, &errmsg);
	if (rc != SQLITE_OK) {
		msg("error writing hiscores: '%s'", errmsg);
		dblog("query was: '%s'", cmd);
		dblog("error writing hiscores: '%s'\n   sql command: [%s]", errmsg, cmd);
		sqlite3_free(errmsg);
	}
	free(cmd);
	sqlite3_close(db);

	return B_FALSE;
}

// returns player's rank in 'rank'
int writehiscore(lifeform_t *lf, int *rank) {
	sqlite3 *db;
	int rc;
	char filename[BUFLEN],*cmd;
	char pname[BUFLEN];
	char racename[BUFLEN];
	char jobname[BUFLEN];
	char killedby[BUFLEN];
	char *escaped;
	char *errmsg = NULL;
	sqlite3_stmt *smt;
	job_t *j;
	long minscore = 0;
	long score;

	score = calcscore(lf);

	// open database
	snprintf(filename, BUFLEN, "%s/hiscores.db", DATADIR);
	rc = sqlite3_open(filename, &db);
	if (rc) {
		msg("error opening hiscore file '%s'.\n",filename);
		dblog("error opening hiscore file '%s'.\n",filename);
		return B_TRUE;
	}

	getplayername(pname);
	j = getjob(player);
	strcpy(racename, player->race->name);
	capitalise(racename);
	snprintf(jobname, BUFLEN, "Lv%d %s %s", player->level, racename, j->name);

	makekillertext(killedby, lf->killverb, lf->lastdam, lf->cell->map, B_FALSE, B_TRUE);

	// add escapes
	escaped = strdup(killedby);
	escaped = strrep(escaped, "'", "''", NULL);

	if (!lfhasflag(lf, F_NOSCORE)) {
		asprintf(&cmd, "insert into 'hiscores' (score,name,job,killedby) VALUES (%ld, '%s', '%s', '%s')", score, pname, jobname, escaped);
		rc = sqlite3_exec(db, cmd, NULL, NULL, &errmsg);
		free(cmd);
		if (rc != SQLITE_OK) {
			msg("error writing hiscores: '%s'", errmsg);
			dblog("error writing hiscores: '%s'", errmsg);
			dblog("query was: '%s'", cmd);
			sqlite3_free(errmsg);
		}
	}
	free(escaped);

	if (rank) {
		if (lfhasflag(lf, F_NOSCORE)) {
			*rank = -1;
		} else {
			// find out the player's rank
			asprintf(&cmd, "select (select count(*) from hiscores b where b.score > a.score) + 1 as rank from hiscores a where score = %ld;",score);
			rc = sqlite3_prepare_v2(db, cmd, -1, &smt, 0);
			free(cmd);
			rc = sqlite3_step(smt);
			while (rc == SQLITE_ROW) {
				const char *p;
				p = (const char *)sqlite3_column_text(smt, 0);
				*rank = atoi(p);
				rc = sqlite3_step(smt);
			}
		}
	}

	// now delete all hiscore entries after 100
	// find score number 100...
	asprintf(&cmd, "select score from hiscores order by score desc limit 100;");
        rc = sqlite3_prepare_v2(db, cmd, -1, &smt, 0);
	free(cmd);
	rc = sqlite3_step(smt);
	while (rc == SQLITE_ROW) {
		const char *p;
		p = (const char *)sqlite3_column_text(smt, 0);
		minscore = atol(p);
		rc = sqlite3_step(smt);
	}
	if (minscore > 0) {
		// we now have a minimum score - delete everything lower than it.
		asprintf(&cmd, "delete from hiscores where score < %ld;", minscore);
		rc = sqlite3_exec(db, cmd, NULL, NULL, &errmsg);
		free(cmd);
	}
	
	sqlite3_close(db);
	return 0;
}