xref: /netbsd-src/games/hack/hack.potion.c (revision 76dfffe33547c37f8bdd446e3e4ab0f3c16cea4b)
1 /*
2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
3  */
4 
5 #ifndef lint
6 static char rcsid[] = "$NetBSD: hack.potion.c,v 1.3 1995/03/23 08:31:18 cgd Exp $";
7 #endif /* not lint */
8 
9 #include "hack.h"
10 extern int float_down();
11 extern char *nomovemsg;
12 extern struct monst youmonst;
13 extern struct monst *makemon();
14 
15 dodrink() {
16 	register struct obj *otmp,*objs;
17 	register struct monst *mtmp;
18 	register int unkn = 0, nothing = 0;
19 
20 	otmp = getobj("!", "drink");
21 	if(!otmp) return(0);
22 	if(!strcmp(objects[otmp->otyp].oc_descr, "smoky") && !rn2(13)) {
23 		ghost_from_bottle();
24 		goto use_it;
25 	}
26 	switch(otmp->otyp){
27 	case POT_RESTORE_STRENGTH:
28 		unkn++;
29 		pline("Wow!  This makes you feel great!");
30 		if(u.ustr < u.ustrmax) {
31 			u.ustr = u.ustrmax;
32 			flags.botl = 1;
33 		}
34 		break;
35 	case POT_BOOZE:
36 		unkn++;
37 		pline("Ooph!  This tastes like liquid fire!");
38 		Confusion += d(3,8);
39 		/* the whiskey makes us feel better */
40 		if(u.uhp < u.uhpmax) losehp(-1, "bottle of whiskey");
41 		if(!rn2(4)) {
42 			pline("You pass out.");
43 			multi = -rnd(15);
44 			nomovemsg = "You awake with a headache.";
45 		}
46 		break;
47 	case POT_INVISIBILITY:
48 		if(Invis || See_invisible)
49 		  nothing++;
50 		else {
51 		  if(!Blind)
52 		    pline("Gee!  All of a sudden, you can't see yourself.");
53 		  else
54 		    pline("You feel rather airy."), unkn++;
55 		  newsym(u.ux,u.uy);
56 		}
57 		Invis += rn1(15,31);
58 		break;
59 	case POT_FRUIT_JUICE:
60 		pline("This tastes like fruit juice.");
61 		lesshungry(20);
62 		break;
63 	case POT_HEALING:
64 		pline("You begin to feel better.");
65 		flags.botl = 1;
66 		u.uhp += rnd(10);
67 		if(u.uhp > u.uhpmax)
68 			u.uhp = ++u.uhpmax;
69 		if(Blind) Blind = 1;	/* see on next move */
70 		if(Sick) Sick = 0;
71 		break;
72 	case POT_PARALYSIS:
73 		if(Levitation)
74 			pline("You are motionlessly suspended.");
75 		else
76 			pline("Your feet are frozen to the floor!");
77 		nomul(-(rn1(10,25)));
78 		break;
79 	case POT_MONSTER_DETECTION:
80 		if(!fmon) {
81 			strange_feeling(otmp, "You feel threatened.");
82 			return(1);
83 		} else {
84 			cls();
85 			for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
86 				if(mtmp->mx > 0)
87 				at(mtmp->mx,mtmp->my,mtmp->data->mlet);
88 			prme();
89 			pline("You sense the presence of monsters.");
90 			more();
91 			docrt();
92 		}
93 		break;
94 	case POT_OBJECT_DETECTION:
95 		if(!fobj) {
96 			strange_feeling(otmp, "You feel a pull downward.");
97 			return(1);
98 		} else {
99 		    for(objs = fobj; objs; objs = objs->nobj)
100 			if(objs->ox != u.ux || objs->oy != u.uy)
101 				goto outobjmap;
102 		    pline("You sense the presence of objects close nearby.");
103 		    break;
104 		outobjmap:
105 			cls();
106 			for(objs = fobj; objs; objs = objs->nobj)
107 				at(objs->ox,objs->oy,objs->olet);
108 			prme();
109 			pline("You sense the presence of objects.");
110 			more();
111 			docrt();
112 		}
113 		break;
114 	case POT_SICKNESS:
115 		pline("Yech! This stuff tastes like poison.");
116 		if(Poison_resistance)
117     pline("(But in fact it was biologically contaminated orange juice.)");
118 		losestr(rn1(4,3));
119 		losehp(rnd(10), "contaminated potion");
120 		break;
121 	case POT_CONFUSION:
122 		if(!Confusion)
123 			pline("Huh, What?  Where am I?");
124 		else
125 			nothing++;
126 		Confusion += rn1(7,16);
127 		break;
128 	case POT_GAIN_STRENGTH:
129 		pline("Wow do you feel strong!");
130 		if(u.ustr >= 118) break;	/* > 118 is impossible */
131 		if(u.ustr > 17) u.ustr += rnd(118-u.ustr);
132 		else u.ustr++;
133 		if(u.ustr > u.ustrmax) u.ustrmax = u.ustr;
134 		flags.botl = 1;
135 		break;
136 	case POT_SPEED:
137 		if(Wounded_legs) {
138 			heal_legs();
139 			unkn++;
140 			break;
141 		}
142 		if(!(Fast & ~INTRINSIC))
143 			pline("You are suddenly moving much faster.");
144 		else
145 			pline("Your legs get new energy."), unkn++;
146 		Fast += rn1(10,100);
147 		break;
148 	case POT_BLINDNESS:
149 		if(!Blind)
150 			pline("A cloud of darkness falls upon you.");
151 		else
152 			nothing++;
153 		Blind += rn1(100,250);
154 		seeoff(0);
155 		break;
156 	case POT_GAIN_LEVEL:
157 		pluslvl();
158 		break;
159 	case POT_EXTRA_HEALING:
160 		pline("You feel much better.");
161 		flags.botl = 1;
162 		u.uhp += d(2,20)+1;
163 		if(u.uhp > u.uhpmax)
164 			u.uhp = (u.uhpmax += 2);
165 		if(Blind) Blind = 1;
166 		if(Sick) Sick = 0;
167 		break;
168 	case POT_LEVITATION:
169 		if(!Levitation)
170 			float_up();
171 		else
172 			nothing++;
173 		Levitation += rnd(100);
174 		u.uprops[PROP(RIN_LEVITATION)].p_tofn = float_down;
175 		break;
176 	default:
177 		impossible("What a funny potion! (%u)", otmp->otyp);
178 		return(0);
179 	}
180 	if(nothing) {
181 	    unkn++;
182 	    pline("You have a peculiar feeling for a moment, then it passes.");
183 	}
184 	if(otmp->dknown && !objects[otmp->otyp].oc_name_known) {
185 		if(!unkn) {
186 			objects[otmp->otyp].oc_name_known = 1;
187 			more_experienced(0,10);
188 		} else if(!objects[otmp->otyp].oc_uname)
189 			docall(otmp);
190 	}
191 use_it:
192 	useup(otmp);
193 	return(1);
194 }
195 
196 pluslvl()
197 {
198 	register num;
199 
200 	pline("You feel more experienced.");
201 	num = rnd(10);
202 	u.uhpmax += num;
203 	u.uhp += num;
204 	if(u.ulevel < 14) {
205 		extern long newuexp();
206 
207 		u.uexp = newuexp()+1;
208 		pline("Welcome to experience level %u.", ++u.ulevel);
209 	}
210 	flags.botl = 1;
211 }
212 
213 strange_feeling(obj,txt)
214 register struct obj *obj;
215 register char *txt;
216 {
217 	if(flags.beginner)
218 	    pline("You have a strange feeling for a moment, then it passes.");
219 	else
220 	    pline(txt);
221 	if(!objects[obj->otyp].oc_name_known && !objects[obj->otyp].oc_uname)
222 		docall(obj);
223 	useup(obj);
224 }
225 
226 char *bottlenames[] = {
227 	"bottle", "phial", "flagon", "carafe", "flask", "jar", "vial"
228 };
229 
230 potionhit(mon, obj)
231 register struct monst *mon;
232 register struct obj *obj;
233 {
234 	extern char *xname();
235 	register char *botlnam = bottlenames[rn2(SIZE(bottlenames))];
236 	boolean uclose, isyou = (mon == &youmonst);
237 
238 	if(isyou) {
239 		uclose = TRUE;
240 		pline("The %s crashes on your head and breaks into shivers.",
241 			botlnam);
242 		losehp(rnd(2), "thrown potion");
243 	} else {
244 		uclose = (dist(mon->mx,mon->my) < 3);
245 		/* perhaps 'E' and 'a' have no head? */
246 		pline("The %s crashes on %s's head and breaks into shivers.",
247 			botlnam, monnam(mon));
248 		if(rn2(5) && mon->mhp > 1)
249 			mon->mhp--;
250 	}
251 	pline("The %s evaporates.", xname(obj));
252 
253 	if(!isyou && !rn2(3)) switch(obj->otyp) {
254 
255 	case POT_RESTORE_STRENGTH:
256 	case POT_GAIN_STRENGTH:
257 	case POT_HEALING:
258 	case POT_EXTRA_HEALING:
259 		if(mon->mhp < mon->mhpmax) {
260 			mon->mhp = mon->mhpmax;
261 			pline("%s looks sound and hale again!", Monnam(mon));
262 		}
263 		break;
264 	case POT_SICKNESS:
265 		if(mon->mhpmax > 3)
266 			mon->mhpmax /= 2;
267 		if(mon->mhp > 2)
268 			mon->mhp /= 2;
269 		break;
270 	case POT_CONFUSION:
271 	case POT_BOOZE:
272 		mon->mconf = 1;
273 		break;
274 	case POT_INVISIBILITY:
275 		unpmon(mon);
276 		mon->minvis = 1;
277 		pmon(mon);
278 		break;
279 	case POT_PARALYSIS:
280 		mon->mfroz = 1;
281 		break;
282 	case POT_SPEED:
283 		mon->mspeed = MFAST;
284 		break;
285 	case POT_BLINDNESS:
286 		mon->mblinded |= 64 + rn2(64);
287 		break;
288 /*
289 	case POT_GAIN_LEVEL:
290 	case POT_LEVITATION:
291 	case POT_FRUIT_JUICE:
292 	case POT_MONSTER_DETECTION:
293 	case POT_OBJECT_DETECTION:
294 		break;
295 */
296 	}
297 	if(uclose && rn2(5))
298 		potionbreathe(obj);
299 	obfree(obj, Null(obj));
300 }
301 
302 potionbreathe(obj)
303 register struct obj *obj;
304 {
305 	switch(obj->otyp) {
306 	case POT_RESTORE_STRENGTH:
307 	case POT_GAIN_STRENGTH:
308 		if(u.ustr < u.ustrmax) u.ustr++, flags.botl = 1;
309 		break;
310 	case POT_HEALING:
311 	case POT_EXTRA_HEALING:
312 		if(u.uhp < u.uhpmax) u.uhp++, flags.botl = 1;
313 		break;
314 	case POT_SICKNESS:
315 		if(u.uhp <= 5) u.uhp = 1; else u.uhp -= 5;
316 		flags.botl = 1;
317 		break;
318 	case POT_CONFUSION:
319 	case POT_BOOZE:
320 		if(!Confusion)
321 			pline("You feel somewhat dizzy.");
322 		Confusion += rnd(5);
323 		break;
324 	case POT_INVISIBILITY:
325 		pline("For an instant you couldn't see your right hand.");
326 		break;
327 	case POT_PARALYSIS:
328 		pline("Something seems to be holding you.");
329 		nomul(-rnd(5));
330 		break;
331 	case POT_SPEED:
332 		Fast += rnd(5);
333 		pline("Your knees seem more flexible now.");
334 		break;
335 	case POT_BLINDNESS:
336 		if(!Blind) pline("It suddenly gets dark.");
337 		Blind += rnd(5);
338 		seeoff(0);
339 		break;
340 /*
341 	case POT_GAIN_LEVEL:
342 	case POT_LEVITATION:
343 	case POT_FRUIT_JUICE:
344 	case POT_MONSTER_DETECTION:
345 	case POT_OBJECT_DETECTION:
346 		break;
347 */
348 	}
349 	/* note: no obfree() */
350 }
351 
352 /*
353  * -- rudimentary -- to do this correctly requires much more work
354  * -- all sharp weapons get one or more qualities derived from the potions
355  * -- texts on scrolls may be (partially) wiped out; do they become blank?
356  * --   or does their effect change, like under Confusion?
357  * -- all objects may be made invisible by POT_INVISIBILITY
358  * -- If the flask is small, can one dip a large object? Does it magically
359  * --   become a jug? Etc.
360  */
361 dodip(){
362 	register struct obj *potion, *obj;
363 
364 	if(!(obj = getobj("#", "dip")))
365 		return(0);
366 	if(!(potion = getobj("!", "dip into")))
367 		return(0);
368 	pline("Interesting...");
369 	if(obj->otyp == ARROW || obj->otyp == DART ||
370 	   obj->otyp == CROSSBOW_BOLT) {
371 		if(potion->otyp == POT_SICKNESS) {
372 			useup(potion);
373 			if(obj->spe < 7) obj->spe++;	/* %% */
374 		}
375 	}
376 	return(1);
377 }
378 
379 ghost_from_bottle(){
380 	extern struct permonst pm_ghost;
381 	register struct monst *mtmp;
382 
383 	if(!(mtmp = makemon(PM_GHOST,u.ux,u.uy))){
384 		pline("This bottle turns out to be empty.");
385 		return;
386 	}
387 	mnexto(mtmp);
388 	pline("As you open the bottle, an enormous ghost emerges!");
389 	pline("You are frightened to death, and unable to move.");
390 	nomul(-3);
391 }
392