Source:NetHack 2.2a/search.c

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Below is the full text to search.c from the source code of NetHack 2.2a. To link to a particular line, write [[NetHack 2.2a/search.c#line123]], for example.

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

Screenshots and source code from Hack are used under the CWI license.

1.    /*	SCCS Id: @(#)search.c	2.1	87/11/10
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    
4.    #include "hack.h"
5.    char *rndmonnam(), *defmonnam();
6.    
7.    extern struct monst *makemon();
8.    
9.    findit()	/* returns number of things found */
10.   {
11.   	int num;
12.   	register xchar zx,zy;
13.   	register struct trap *ttmp;
14.   	register struct monst *mtmp;
15.   	xchar lx,hx,ly,hy;
16.   
17.   	if(u.uswallow) return(0);
18.   	for(lx = u.ux; (num = levl[lx-1][u.uy].typ) && num != CORR; lx--) ;
19.   	for(hx = u.ux; (num = levl[hx+1][u.uy].typ) && num != CORR; hx++) ;
20.   	for(ly = u.uy; (num = levl[u.ux][ly-1].typ) && num != CORR; ly--) ;
21.   	for(hy = u.uy; (num = levl[u.ux][hy+1].typ) && num != CORR; hy++) ;
22.   	num = 0;
23.   	for(zy = ly; zy <= hy; zy++)
24.   		for(zx = lx; zx <= hx; zx++) {
25.   			if(levl[zx][zy].typ == SDOOR) {
26.   				levl[zx][zy].typ = DOOR;
27.   				atl(zx, zy, DOOR_SYM);
28.   				num++;
29.   			} else if(levl[zx][zy].typ == SCORR) {
30.   				levl[zx][zy].typ = CORR;
31.   				atl(zx, zy, CORR_SYM);
32.   				num++;
33.   			} else if(ttmp = t_at(zx, zy)) {
34.   				if(ttmp->ttyp == PIERC){
35.   					(void) makemon(PM_PIERCER, zx, zy);
36.   					num++;
37.   					deltrap(ttmp);
38.   				} else if(!ttmp->tseen) {
39.   					ttmp->tseen = 1;
40.   					if(!vism_at(zx, zy))
41.   						atl(zx,zy,TRAP_SYM);
42.   					num++;
43.   				}
44.   			} else if(mtmp = m_at(zx,zy)) if(mtmp->mimic){
45.   				seemimic(mtmp);
46.   				num++;
47.   			}
48.   		}
49.   	return(num);
50.   }
51.   
52.   dosearch()
53.   {
54.   	register xchar x,y;
55.   	register struct trap *trap;
56.   	register struct monst *mtmp;
57.   #ifdef BVH	/* if weapon is Excalibur give the user the sword's
58.   		 * magic bonus (+ or -) to search for hidden objects.
59.   		 */
60.   	int fund = (uwep && !strcmp(ONAME(uwep),"Excalibur")) ?
61.   			((uwep->spe > 5) ? 5 : uwep->spe) : 0;
62.   #endif
63.   
64.   	if(u.uswallow)
65.   		pline("What are you looking for? The exit?");
66.   	else
67.   	for(x = u.ux-1; x < u.ux+2; x++)
68.   	for(y = u.uy-1; y < u.uy+2; y++) if(x != u.ux || y != u.uy) {
69.   		if(levl[x][y].typ == SDOOR) {
70.   			if(rn2(7-fund)) continue;
71.   			levl[x][y].typ = DOOR;
72.   			levl[x][y].seen = 0;	/* force prl */
73.   			prl(x,y);
74.   			nomul(0);
75.   		} else if(levl[x][y].typ == SCORR) {
76.   			if(rn2(7-fund)) continue;
77.   			levl[x][y].typ = CORR;
78.   			levl[x][y].seen = 0;	/* force prl */
79.   			prl(x,y);
80.   			nomul(0);
81.   		} else {
82.   		/* Be careful not to find anything in an SCORR or SDOOR */
83.   			if(mtmp = m_at(x,y)) if(mtmp->mimic){
84.   				seemimic(mtmp);
85.   				pline("You find %s.",defmonnam(mtmp));
86.   				return(1);
87.   			}
88.   			for(trap = ftrap; trap; trap = trap->ntrap)
89.   			if(trap->tx == x && trap->ty == y &&
90.   			   !trap->tseen && !rn2(8)) {
91.   				nomul(0);
92.   				if (trap->ttyp != PIERC)
93.   				pline("You find a%s.", traps[Hallucination ?
94.   				rn2(TRAPNUM-2) : trap->ttyp ]);
95.   
96.   				if(trap->ttyp == PIERC) {
97.   				    deltrap(trap);
98.   				    if((mtmp=makemon(PM_PIERCER,x,y)))
99.   					pline("You find %s.", defmonnam(mtmp));
100.  				    return(1);
101.  				}
102.  				trap->tseen = 1;
103.  				if(!vism_at(x,y)) atl(x,y,TRAP_SYM);
104.  			}
105.  		}
106.  	}
107.  	return(1);
108.  }
109.  
110.  doidtrap() {
111.  register struct trap *trap;
112.  register int x,y;
113.  	if(!getdir(1)) return(0);
114.  	x = u.ux + u.dx;
115.  	y = u.uy + u.dy;
116.  	for(trap = ftrap; trap; trap = trap->ntrap)
117.  		if(trap->tx == x && trap->ty == y && trap->tseen) {
118.  		    if(u.dz)
119.  			if((u.dz < 0) != (!xdnstair && trap->ttyp == TRAPDOOR))
120.  			    continue;
121.  			pline("That is a%s.",traps[ Hallucination ? rn2(TRAPNUM-2) :
122.  			trap->ttyp]);
123.  		    return(0);
124.  		}
125.  	pline("I can't see a trap there.");
126.  	return(0);
127.  }
128.  
129.  wakeup(mtmp)
130.  register struct monst *mtmp;
131.  {
132.  	mtmp->msleep = 0;
133.  	setmangry(mtmp);
134.  	if(mtmp->mimic) seemimic(mtmp);
135.  }
136.  
137.  /* NOTE: we must check if(mtmp->mimic) before calling this routine */
138.  seemimic(mtmp)
139.  register struct monst *mtmp;
140.  {
141.  		mtmp->mimic = 0;
142.  		mtmp->mappearance = 0;
143.  		unpmon(mtmp);
144.  		pmon(mtmp);
145.  }