Source:Hack 1.0/mklev.c

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Below is the full text to mklev.c from the source code of Hack 1.0. To link to a particular line, write [[Hack 1.0/mklev.c#line123]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

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1.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1984. */
2.    
3.    #include <stdio.h>
4.    #include "mklev.h"
5.    #include "def.trap.h"
6.    
7.    extern char *getlogin();
8.    extern struct monst *makemon();
9.    
10.   char *tfile,*tspe,**args;
11.   char nul[40];
12.   
13.   #include "savelev.h"
14.   
15.   #ifdef WIZARD
16.   boolean wizard;
17.   #endif WIZARD
18.   
19.   
20.   #define somex() ((rand()%(croom->hx-croom->lx+1))+croom->lx)
21.   #define somey() ((rand()%(croom->hy-croom->ly+1))+croom->ly)
22.   
23.   struct rm levl[COLNO][ROWNO];
24.   struct monst *fmon;
25.   struct obj *fobj;
26.   struct gen *fgold, *ftrap;
27.   
28.   char *fut_geno;		/* monsters that should not be created anymore */
29.   
30.   struct mkroom rooms[MAXNROFROOMS+1], *croom, *troom;
31.   coord doors[DOORMAX];
32.   int doorindex = 0;
33.   int comp();
34.   
35.   xchar dlevel;
36.   schar nxcor,xx,yy,dx,dy,tx,ty; /* for corridors and other things... */
37.   boolean goldseen;
38.   int nroom;
39.   
40.   xchar xdnstair,xupstair,ydnstair,yupstair;
41.   
42.   
43.   main(argc,argv)
44.   char *argv[];
45.   {
46.   	register unsigned tryct;
47.   
48.   	if(argc < 6) panic("Too few arguments!!");
49.   	args = argv;
50.   	tfile = argv[1];
51.   	tspe = argv[2];
52.   	dlevel = atoi(argv[3]);
53.   	if(dlevel < 1) panic("Bad level");
54.   	fut_geno = argv[4];
55.   #ifdef WIZARD
56.   	wizard = (argv[5][0] == 'w');
57.   #endif WIZARD
58.   	(void) srand(getpid());
59.   	init_objects();
60.   	rooms[0].hx = -1;	/* in case we are in a maze */
61.   
62.   	/* a: normal; b: maze */
63.   	if(*tspe == 'b') {
64.   		makemaz();
65.   		savelev();
66.   		exit(0);
67.   	}
68.   
69.   	/* construct the rooms */
70.   	while(nroom < (MAXNROFROOMS/3)) {
71.   		croom = rooms;
72.   		nroom = 0;
73.   		(void) makerooms(0);		/* not secret */
74.   	}
75.   
76.   	/* for each room: put things inside */
77.   	for(croom = rooms; croom->hx > 0; croom++) {
78.   
79.   		/* put a sleeping monster inside */
80.   		if(!rn2(3)) (void)
81.   			makemon((struct permonst *) 0, somex(), somey());
82.   
83.   		/* put traps and mimics inside */
84.   		goldseen = FALSE;
85.   		while(!rn2(8-(dlevel/6))) mktrap(0,0);
86.   		if(!goldseen && !rn2(3)) mkgold(0,somex(),somey());
87.   		if(!rn2(3)) {
88.   			mkobj_at(0, somex(), somey());
89.   			tryct = 0;
90.   			while(!rn2(5)) {
91.   				if(++tryct > 100){
92.   					printf("tryct overflow4\n");
93.   					break;
94.   				}
95.    mkobj_at(0, somex(), somey());
96.   			}
97.   		}
98.   	}
99.   	tryct = 0;
100.  	do {
101.  		if(++tryct > 1000) panic("Cannot make dnstairs\n");
102.  		croom = &rooms[rn2(nroom)];
103.  		xdnstair = somex();
104.  		ydnstair = somey();
105.  	} while((*tspe =='n' && (!(xdnstair%2) || !(ydnstair%2))) ||
106.  		g_at(xdnstair,ydnstair,ftrap));
107.  	levl[xdnstair][ydnstair].scrsym ='>';
108.  	levl[xdnstair][ydnstair].typ = STAIRS;
109.  	troom = croom;
110.  	do {
111.  		if(++tryct > 2000) panic("Cannot make upstairs\n");
112.  		croom = &rooms[rn2(nroom)];
113.  		xupstair = somex();
114.  		yupstair = somey();
115.  	} while(croom == troom || m_at(xupstair,yupstair) ||
116.  		g_at(xupstair,yupstair,ftrap));
117.  	levl[xupstair][yupstair].scrsym ='<';
118.  	levl[xupstair][yupstair].typ = STAIRS;
119.  
120.  	qsort((char *) rooms, nroom, sizeof(struct mkroom), comp);
121.  	croom = rooms;
122.  	troom = croom+1;
123.  	nxcor = 0;
124.  	mkpos();
125.  	do makecor();
126.  	while (croom->hx > 0 && troom->hx > 0);
127.  
128.  	/* make a secret treasure vault, not connected to the rest */
129.  	if(nroom < (2*MAXNROFROOMS/3)) if(!rn2(3)) {
130.  		register int x,y;
131.  		troom = croom = &rooms[nroom];
132.  		if(makerooms(1)) {		/* make secret room */
133.  			troom->rtype = 6;		/* treasure vault */
134.  			for(x = troom->lx; x <= troom->hx; x++)
135.  			for(y = troom->ly; y <= troom->hy; y++)
136.  				mkgold(rnd(dlevel*100) + 50, x, y);
137.  		}
138.  	}
139.  
140.  #ifdef WIZARD
141.  	if(wizard){
142.  		if(rn2(3)) mkshop(); else mkzoo();
143.  	} else
144.  #endif WIZARD
145.   	if(dlevel > 1 && dlevel < 20 && rn2(dlevel) < 2) mkshop();
146.  	else
147.  	if(dlevel > 6 && (!rn2(7) || !strcmp("david", getlogin())))
148.  		mkzoo();
149.  	savelev();
150.  	exit(0);
151.  }
152.  
153.  makerooms(secret) int secret; {
154.  register int lowx, lowy;
155.  register int tryct = 0;
156.  	while(nroom < (MAXNROFROOMS/2) || secret)
157.  	    for(lowy = rn1(3,3); lowy < ROWNO-7; lowy += rn1(2,4)) {
158.  		for(lowx = rn1(3,4); lowx < COLNO-10; lowx += rn1(2,7)) {
159.  			if(tryct++ > 10000) return(0);
160.  			if((lowy += (rn2(5)-2)) < 3) lowy = 3;
161.  			else if(lowy > ROWNO-6) lowy = ROWNO-6;
162.  			if(levl[lowx][lowy].typ) continue;
163.  			if((secret && maker(lowx, 1, lowy, 1)) ||
164.  			   (!secret && maker(lowx,rn1(9,2),lowy,rn1(4,2))
165.  				&& nroom+2 > MAXNROFROOMS)) return(1);
166.  		}
167.  	}
168.   return(1);
169.  }
170.  
171.  comp(x,y)
172.  register struct mkroom *x,*y;
173.  {
174.  	if(x->lx < y->lx) return(-1);
175.  	return(x->lx > y->lx);
176.  }
177.  
178.  coord
179.  finddpos(xl,yl,xh,yh) {
180.  coord ff;
181.  register x,y;
182.  	ff.x = (xl == xh) ? xl : (xl + rn2(xh-xl+1));
183.  	ff.y = (yl == yh) ? yl : (yl + rn2(yh-yl+1));
184.  	if(okdoor(ff.x, ff.y)) return(ff);
185.  	if(xl < xh) for(x = xl; x <= xh; x++)
186.  		if(okdoor(x, ff.y)){
187.  			ff.x = x;
188.  			return(ff);
189.  		}
190.  	if(yl < yh) for(y = yl; y <= yh; y++)
191.  		if(okdoor(ff.x, y)){
192.  			ff.y = y;
193.  			return(ff);
194.  		}
195.   return(ff);
196.  }
197.  
198.  /* when croom and troom exist, find position for a door in croom
199.     and direction for a corridor towards position [tx,ty] in the wall
200.     of troom */
201.  mkpos()
202.  {
203.  coord cc,tt;
204.  	if(troom->hx < 0 || croom->hx < 0 || doorindex >= DOORMAX) return;
205.  	if(troom->lx > croom->hx) {
206.  		dx = 1;
207.  		dy = 0;
208.  		xx = croom->hx+1;
209.  		tx = troom->lx-1;
210.  		cc = finddpos(xx,croom->ly,xx,croom->hy);
211.  		tt = finddpos(tx,troom->ly,tx,troom->hy);
212.  	} else if(troom->hy < croom->ly) {
213.  		dy = -1;
214.  		dx = 0;
215.  		yy = croom->ly-1;
216.  		cc = finddpos(croom->lx,yy,croom->hx,yy);
217.  		ty = troom->hy+1;
218.  		tt = finddpos(troom->lx,ty,troom->hx,ty);
219.  	} else if(troom->hx < croom->lx) {
220.  		dx = -1;
221.  		dy = 0;
222.  		xx = croom->lx-1;
223.  		tx = troom->hx+1;
224.  		cc = finddpos(xx,croom->ly,xx,croom->hy);
225.  		tt = finddpos(tx,troom->ly,tx,troom->hy);
226.  	} else {
227.  		dy = 1;
228.  		dx = 0;
229.  		yy = croom->hy+1;
230.  		ty = troom->ly-1;
231.  		cc = finddpos(croom->lx,yy,croom->hx,yy);
232.  		tt = finddpos(troom->lx,ty,troom->hx,ty);
233.  	}
234.  	xx = cc.x;
235.  	yy = cc.y;
236.  	tx = tt.x;
237.  	ty = tt.y;
238.  	if(levl[xx+dx][yy+dy].typ) {
239.  		if(nxcor) newloc();
240.  		else {
241.  			dodoor(xx,yy,croom);
242.  			xx += dx;
243.  			yy += dy;
244.  		}
245.   return;
246.  	}
247.   dodoor(xx,yy,croom);
248.  }
249.  
250.  /* if allowable, create a door at [x,y] */
251.  okdoor(x,y)
252.  register x,y;
253.  {
254.  	if(levl[x-1][y].typ == DOOR || levl[x+1][y].typ == DOOR ||
255.  	   levl[x][y+1].typ == DOOR || levl[x][y-1].typ == DOOR ||
256.  	   levl[x-1][y].typ == SDOOR || levl[x+1][y].typ == SDOOR ||
257.  	   levl[x][y-1].typ == SDOOR || levl[x][y+1].typ == SDOOR ||
258.  	   (levl[x][y].typ != HWALL && levl[x][y].typ != VWALL) ||
259.  	   doorindex >= DOORMAX)
260.  		return(0);
261.  	return(1);
262.  }
263.  
264.  dodoor(x,y,aroom)
265.  register x,y;
266.  register struct mkroom *aroom;
267.  {
268.  	register struct mkroom *broom;
269.  	register tmp;
270.  	if(doorindex >= DOORMAX) panic("DOORMAX exceeded?");
271.  	if(!okdoor(x,y) && nxcor) return;
272.  	if(!rn2(8)) levl[x][y].typ = SDOOR;
273.  	else {
274.  		levl[x][y].scrsym ='+';
275.  		levl[x][y].typ = DOOR;
276.  	}
277.  	aroom->doorct++;
278.  	broom = aroom+1;
279.  	if(broom->hx < 0) tmp = doorindex; else
280.  	for(tmp = doorindex; tmp > broom->fdoor; tmp--)
281.  		doors[tmp] = doors[tmp-1];
282.  	doorindex++;
283.  	doors[tmp].x = x;
284.  	doors[tmp].y = y;
285.  	for( ; broom->hx >= 0; broom++) broom->fdoor++;
286.  }
287.  
288.  newloc()
289.  {
290.  	register a,b;
291.  	register int tryct = 0;
292.  
293.  	++croom;
294.  	++troom;
295.  	if(nxcor || croom->hx < 0 || troom->hx < 0) {
296.  		if(nxcor++ > rn1(nroom,4)) {
297.  			croom = &rooms[nroom];
298.  			return;
299.  		}
300.  		do {
301.  			if(++tryct > 100){
302.  				printf("tryct overflow5\n");
303.  				croom = &rooms[nroom];
304.  				return;
305.  			}
306.  			a = rn2(nroom);
307.  			b = rn2(nroom);
308.  			croom = &rooms[a];
309.  			troom = &rooms[b];
310.  		} while(croom == troom || (troom == croom+1 && !rn2(3)));
311.  	}
312.   mkpos();
313.  }
314.  
315.  /* make a trap somewhere (in croom if mazeflag = 0) */
316.  mktrap(num,mazeflag)
317.  register num,mazeflag;
318.  {
319.  	register struct gen *gtmp;
320.  	register int kind,nopierc,nomimic,fakedoor,fakegold,tryct = 0;
321.  	register xchar mx,my;
322.  
323.  	if(!num || num >= TRAPNUM) {
324.  		nopierc = (dlevel < 4) ? 1 : 0;
325.  		nomimic = (dlevel < 9 || goldseen ) ? 1 : 0;
326.  		if(index(fut_geno, 'M')) nomimic = 1;
327.  		kind = rn2(TRAPNUM - nopierc - nomimic);
328.  		/* note: PIERC = 7, MIMIC = 8, TRAPNUM = 9 */
329.  	} else kind = num;
330.  
331.  	if(kind == MIMIC) {
332.  		register struct monst *mtmp;
333.  
334.  		fakedoor = (!rn2(3) && !mazeflag);
335.  		fakegold = (!fakedoor && !rn2(2));
336.  		if(fakegold) goldseen = TRUE;
337.  		do {
338.  			if(++tryct > 200) return;
339.  			if(fakedoor) {
340.  				/* note: fakedoor maybe on actual door */
341.  				if(rn2(2)){
342.  					if(rn2(2))
343.  						mx = croom->hx+1;
344.  					else mx = croom->lx-1;
345.  					my = somey();
346.  				} else {
347.  					if(rn2(2))
348.  						my = croom->hy+1;
349.  					else my = croom->ly-1;
350.  					mx = somex();
351.  				}
352.  			} else if(mazeflag) {
353.  				extern coord mazexy();
354.  				coord mm;
355.  				mm = mazexy();
356.  				mx = mm.x;
357.  				my = mm.y;
358.  			} else {
359.  				mx = somex();
360.  				my = somey();
361.  			}
362.  		} while(m_at(mx,my));
363.  		if(mtmp = makemon(PM_MIMIC,mx,my))
364.  		    mtmp->mimic =
365.  			fakegold ? '$' : fakedoor ? '+' :
366.  			(mazeflag && rn2(2)) ? AMULET_SYM :
367.  			"=/)%?![<>" [ rn2(9) ];
368.  		return;
369.  	}
370.  	gtmp = newgen();
371.  	gtmp->gflag = kind;
372.  	do {
373.  		if(++tryct > 200){
374.  			printf("tryct overflow7\n");
375.  			free((char *) gtmp);
376.  			return;
377.  		}
378.  		if(mazeflag){
379.  			extern coord mazexy();
380.  			coord mm;
381.  			mm = mazexy();
382.  			gtmp->gx = mm.x;
383.  			gtmp->gy = mm.y;
384.  		} else {
385.  			gtmp->gx = somex();
386.  			gtmp->gy = somey();
387.  		}
388.  	} while(g_at(gtmp->gx, gtmp->gy, ftrap));
389.  	gtmp->ngen = ftrap;
390.  	ftrap = gtmp;
391.  	if(mazeflag && !rn2(10) && gtmp->gflag < PIERC) gtmp->gflag |= SEEN;
392.  }
393.  
394.  /*VARARGS1*/
395.  panic(str,arg1,arg2,arg3)
396.  char *str,*arg1,*arg2,*arg3;
397.  {
398.  	char bufr[BUFSZ];
399.  	extern char *sprintf();
400.  	(void) sprintf(bufr,str,arg1,arg2,arg3);
401.  	(void) write(1,"\nMKLEV ERROR:  ",15);
402.  	puts(bufr);
403.  	(void) fflush(stdout);
404.  	exit(1);
405.  }
406.  
407.  maker(lowx,ddx,lowy,ddy)
408.  schar lowx,ddx,lowy,ddy;
409.  {
410.  	register x, y, hix = lowx+ddx, hiy = lowy+ddy;
411.  
412.  	if(nroom >= MAXNROFROOMS) return(0);
413.  	if(hix > COLNO-5) hix = COLNO-5;
414.  	if(hiy > ROWNO-4) hiy = ROWNO-4;
415.  chk:
416.  	if(hix <= lowx || hiy <= lowy) return(0);
417.  
418.  	/* check area around room (and make room smaller if necessary) */
419.  	for(x = lowx-4; x <= hix+4; x++)
420.  		for(y = lowy-3; y <= hiy+3; y++)
421.  			if(levl[x][y].typ) {
422.  				if(rn2(3)) return(0);
423.  				lowx = x+5;
424.  				lowy = y+4;
425.  				goto chk;
426.  			}
427.  
428.  	/* on low levels the room is lit (usually) */
429.  	/* secret vaults are always lit */
430.  	if((rnd(dlevel) < 10 && rn2(77)) || (ddx == 1 && ddy == 1))
431.  		for(x = lowx-1; x <= hix+1; x++)
432.  			for(y = lowy-1; y <= hiy+1; y++)
433.  				levl[x][y].lit = 1;
434.  	croom->lx = lowx;
435.  	croom->hx = hix;
436.  	croom->ly = lowy;
437.  	croom->hy = hiy;
438.  	croom->rtype = croom->doorct = croom->fdoor = 0;
439.  	for(x = lowx-1; x <= hix+1; x++)
440.  	    for(y = lowy-1; y <= hiy+1; y += (hiy-lowy+2)) {
441.  		levl[x][y].scrsym = '-';
442.  		levl[x][y].typ = HWALL;
443.  	}
444.  	for(x = lowx-1; x <= hix+1; x += (hix-lowx+2))
445.  	    for(y = lowy; y <= hiy; y++) {
446.  		levl[x][y].scrsym = '|';
447.  		levl[x][y].typ = VWALL;
448.  	}
449.  	for(x = lowx; x <= hix; x++)
450.  	    for(y = lowy; y <= hiy; y++) {
451.  		levl[x][y].scrsym = '.';
452.  		levl[x][y].typ = ROOM;
453.  	}
454.  	croom++;
455.  	croom->hx = -1;
456.  	nroom++;
457.  	return(1);
458.  }
459.  
460.  makecor() {
461.  	register nx, ny;
462.  	register struct rm *crm;
463.  	register dix, diy, secondtry = 0;
464.  
465.  tryagain:
466.  	nx = xx + dx;
467.  	ny = yy + dy;
468.  
469.  	if(nxcor && !rn2(35)) {
470.  		newloc();
471.  		return;
472.  	}
473.  	if(nx == COLNO-1 || nx == 0 || ny == 0 || ny == ROWNO-1) {
474.  		if(nxcor) {
475.  			newloc();
476.  			return;
477.  		} else {
478.  			printf("something went wrong. we try again...\n");
479.  		execl("./mklev",args[0],tfile,tspe,args[3],args[4],args[5],0);
480.  			panic("cannot execute ./mklev\n");
481.  		}
482.  	}
483.  
484.  	dix = abs(nx-tx);
485.  	diy = abs(ny-ty);
486.  	if(dy && dix > diy) {
487.  		dy = 0;
488.  		dx = (nx > tx) ? -1 : 1;
489.  	} else if(dx && diy > dix) {
490.  		dx = 0;
491.  		dy = (ny > ty) ? -1 : 1;
492.  	}
493.  
494.  	crm = &levl[nx][ny];
495.  	if(!(crm->typ)) {
496.  		if(rn2(100)) {
497.  			crm->typ = CORR;
498.  			crm->scrsym = CORR_SYM;
499.  		} else {
500.  			crm->typ = SCORR;
501.  			crm->scrsym = ' ';
502.  		}
503.  		xx = nx;
504.  		yy = ny;
505.  		if(nxcor && !rn2(50)) {
506.  			mkobj_at(ROCK_SYM, nx, ny);
507.  		}
508.   return;
509.  	}
510.  	if(crm->typ == CORR || crm->typ == SCORR) {
511.  		xx = nx;
512.  		yy = ny;
513.  		return;
514.  	}
515.  	if(nx == tx && ny == ty) {
516.  		dodoor(nx,ny,troom);
517.  		newloc();
518.  		return;
519.  	}
520.  	if(!secondtry++ && (nx != xx+dx || ny != yy+dy))
521.  		goto tryagain;
522.  	if(dx) {
523.  		if(ty < ny) dy = -1;
524.  		else dy = levl[nx+dx][ny-1].typ == ROOM?1:-1;
525.  		dx = 0;
526.  	} else {
527.  		if(tx < nx) dx = -1;
528.  		else dx = levl[nx-1][ny+dy].typ == ROOM?1:-1;
529.  		dy = 0;
530.  	}
531.  }
532.  
533.  struct monst *
534.  m_at(x,y)
535.  register x,y;
536.  {
537.  	register struct monst *mtmp;
538.  
539.  	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
540.  		if(mtmp->mx == x && mtmp->my == y) return(mtmp);
541.  	return(0);
542.  }
543.  
544.  struct gen *
545.  g_at(x,y,ptr)
546.  register x,y;
547.  register struct gen *ptr;
548.  {
549.  	while(ptr) {
550.  		if(ptr->gx == x && ptr->gy == y) return(ptr);
551.  		ptr = ptr->ngen;
552.  	}
553.   return(0);
554.  }