xref: /dragonfly/games/hack/hack.wizard.c (revision 8a7bdfea)
1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.wizard.c - version 1.0.3 */
3 /* $FreeBSD: src/games/hack/hack.wizard.c,v 1.3 1999/11/16 02:57:14 billf Exp $ */
4 /* $DragonFly: src/games/hack/hack.wizard.c,v 1.3 2006/08/21 19:45:32 pavalos Exp $ */
5 
6 /* wizard code - inspired by rogue code from Merlyn Leroy (digi-g!brian) */
7 
8 #include "hack.h"
9 extern struct permonst pm_wizard;
10 
11 #define	WIZSHOT	    6	/* one chance in WIZSHOT that wizard will try magic */
12 #define	BOLT_LIM    8	/* from this distance D and 1 will try to hit you */
13 
14 char wizapp[] = "@DNPTUVXcemntx";
15 
16 static void	aggravate(void);
17 static void	clonewiz(struct monst *);
18 
19 /* If he has found the Amulet, make the wizard appear after some time */
20 void
21 amulet(void)
22 {
23 	struct obj *otmp;
24 	struct monst *mtmp;
25 
26 	if(!flags.made_amulet || !flags.no_of_wizards)
27 		return;
28 	/* find wizard, and wake him if necessary */
29 	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
30 	    if(mtmp->data->mlet == '1' && mtmp->msleep && !rn2(40))
31 		for(otmp = invent; otmp; otmp = otmp->nobj)
32 		    if(otmp->olet == AMULET_SYM && !otmp->spe) {
33 			mtmp->msleep = 0;
34 			if(dist(mtmp->mx,mtmp->my) > 2)
35 			    pline(
36     "You get the creepy feeling that somebody noticed your taking the Amulet."
37 			    );
38 			return;
39 		    }
40 }
41 
42 bool
43 wiz_hit(struct monst *mtmp)
44 {
45 	/* if we have stolen or found the amulet, we disappear */
46 	if(mtmp->minvent && mtmp->minvent->olet == AMULET_SYM &&
47 	    mtmp->minvent->spe == 0) {
48 		/* vanish -- very primitive */
49 		fall_down(mtmp);
50 		return(1);
51 	}
52 
53 	/* if it is lying around someplace, we teleport to it */
54 	if(!carrying(AMULET_OF_YENDOR)) {
55 	    struct obj *otmp;
56 
57 	    for(otmp = fobj; otmp; otmp = otmp->nobj)
58 		if(otmp->olet == AMULET_SYM && !otmp->spe) {
59 		    if((u.ux != otmp->ox || u.uy != otmp->oy) &&
60 		       !m_at(otmp->ox, otmp->oy)) {
61 
62 			/* teleport to it and pick it up */
63 			mtmp->mx = otmp->ox;
64 			mtmp->my = otmp->oy;
65 			freeobj(otmp);
66 			mpickobj(mtmp, otmp);
67 			pmon(mtmp);
68 			return(0);
69 		    }
70 		    goto hithim;
71 		}
72 	    return(0);				/* we don't know where it is */
73 	}
74 hithim:
75 	if(rn2(2)) {				/* hit - perhaps steal */
76 
77 	    /* if hit 1/20 chance of stealing amulet & vanish
78 		- amulet is on level 26 again. */
79 	    if(hitu(mtmp, d(mtmp->data->damn,mtmp->data->damd))
80 		&& !rn2(20) && stealamulet(mtmp))
81 		return(0);
82 	}
83 	else
84 	    inrange(mtmp);			/* try magic */
85 	return(0);
86 }
87 
88 void
89 inrange(struct monst *mtmp)
90 {
91 	schar tx,ty;
92 
93 	/* do nothing if cancelled (but make '1' say something) */
94 	if(mtmp->data->mlet != '1' && mtmp->mcan)
95 		return;
96 
97 	/* spit fire only when both in a room or both in a corridor */
98 	if(inroom(u.ux,u.uy) != inroom(mtmp->mx,mtmp->my)) return;
99 	tx = u.ux - mtmp->mx;
100 	ty = u.uy - mtmp->my;
101 	if((!tx && abs(ty) < BOLT_LIM) || (!ty && abs(tx) < BOLT_LIM)
102 	    || (abs(tx) == abs(ty) && abs(tx) < BOLT_LIM)){
103 	    switch(mtmp->data->mlet) {
104 	    case 'D':
105 		/* spit fire in the direction of @ (not nec. hitting) */
106 		buzz(-1,mtmp->mx,mtmp->my,sgn(tx),sgn(ty));
107 		break;
108 	    case '1':
109 		if(rn2(WIZSHOT)) break;
110 		/* if you zapped wizard with wand of cancellation,
111 		he has to shake off the effects before he can throw
112 		spells successfully.  1/2 the time they fail anyway */
113 		if(mtmp->mcan || rn2(2)) {
114 		    if(canseemon(mtmp))
115 			pline("%s makes a gesture, then curses.",
116 			    Monnam(mtmp));
117 		    else
118 			pline("You hear mumbled cursing.");
119 		    if(!rn2(3)) {
120 			mtmp->mspeed = 0;
121 			mtmp->minvis = 0;
122 		    }
123 		    if(!rn2(3))
124 			mtmp->mcan = 0;
125 		} else {
126 		    if(canseemon(mtmp)){
127 			if(!rn2(6) && !Invis) {
128 			    pline("%s hypnotizes you.", Monnam(mtmp));
129 			    nomul(rn2(3) + 3);
130 			    break;
131 			} else
132 			    pline("%s chants an incantation.",
133 				Monnam(mtmp));
134 		    } else
135 			    pline("You hear a mumbled incantation.");
136 		    switch(rn2(Invis ? 5 : 6)) {
137 		    case 0:
138 			/* create a nasty monster from a deep level */
139 			/* (for the moment, 'nasty' is not implemented) */
140 			makemon((struct permonst *)0, u.ux, u.uy);
141 			break;
142 		    case 1:
143 			pline("\"Destroy the thief, my pets!\"");
144 			aggravate();	/* aggravate all the monsters */
145 			/* fall into next case */
146 		    case 2:
147 			if (flags.no_of_wizards == 1 && rnd(5) == 0)
148 			    /* if only 1 wizard, clone himself */
149 			    clonewiz(mtmp);
150 			break;
151 		    case 3:
152 			if(mtmp->mspeed == MSLOW)
153 				mtmp->mspeed = 0;
154 			else
155 				mtmp->mspeed = MFAST;
156 			break;
157 		    case 4:
158 			mtmp->minvis = 1;
159 			break;
160 		    case 5:
161 			/* Only if not Invisible */
162 			pline("You hear a clap of thunder!");
163 			/* shoot a bolt of fire or cold, or a sleep ray */
164 			buzz(-rnd(3),mtmp->mx,mtmp->my,sgn(tx),sgn(ty));
165 			break;
166 		    }
167 		}
168 	    }
169 	    if(u.uhp < 1) done_in_by(mtmp);
170 	}
171 }
172 
173 static void
174 aggravate(void)
175 {
176 	struct monst *mtmp;
177 
178 	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
179 		mtmp->msleep = 0;
180 		if(mtmp->mfroz && !rn2(5))
181 			mtmp->mfroz = 0;
182 	}
183 }
184 
185 static void
186 clonewiz(struct monst *mtmp)
187 {
188 	struct monst *mtmp2;
189 
190 	if((mtmp2 = makemon(PM_WIZARD, mtmp->mx, mtmp->my))) {
191 		flags.no_of_wizards = 2;
192 		unpmon(mtmp2);
193 		mtmp2->mappearance = wizapp[rn2(sizeof(wizapp)-1)];
194 		pmon(mtmp);
195 	}
196 }
197