1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.worm.c - version 1.0.2 */
8 struct wseg *wsegs[32]; /* linked list, tail first */
9 struct wseg *wheads[32];
12 getwn(mtmp) struct monst *mtmp; {
14 for(tmp=1; tmp<32; tmp++) if(!wsegs[tmp]) {
18 return(0); /* level infested with worms */
21 /* called to initialize a worm unless cut in half */
22 initworm(mtmp) struct monst *mtmp; {
23 register struct wseg *wtmp;
24 register tmp = mtmp->wormno;
26 wheads[tmp] = wsegs[tmp] = wtmp = newseg();
30 /* wtmp->wdispl = 0; */
34 worm_move(mtmp) struct monst *mtmp; {
35 register struct wseg *wtmp, *whd;
36 register tmp = mtmp->wormno;
41 /* wtmp->wdispl = 0; */
42 (whd = wheads[tmp])->nseg = wtmp;
44 if(cansee(whd->wx,whd->wy)){
46 atl(whd->wx, whd->wy, '~');
48 } else whd->wdispl = 0;
49 if(wgrowtime[tmp] <= moves) {
50 if(!wgrowtime[tmp]) wgrowtime[tmp] = moves + rnd(5);
51 else wgrowtime[tmp] += 2+rnd(15);
57 wsegs[tmp] = whd->nseg;
61 worm_nomove(mtmp) register struct monst *mtmp; {
63 register struct wseg *wtmp;
66 if(wtmp == wheads[tmp]) return;
67 if(wtmp == 0 || wtmp->nseg == 0) panic("worm_nomove?");
68 wsegs[tmp] = wtmp->nseg;
70 mtmp->mhp -= 3; /* mhpmax not changed ! */
73 wormdead(mtmp) register struct monst *mtmp; {
74 register tmp = mtmp->wormno;
75 register struct wseg *wtmp, *wtmp2;
78 for(wtmp = wsegs[tmp]; wtmp; wtmp = wtmp2){
85 wormhit(mtmp) register struct monst *mtmp; {
86 register tmp = mtmp->wormno;
87 register struct wseg *wtmp;
88 if(!tmp) return; /* worm without tail */
89 for(wtmp = wsegs[tmp]; wtmp; wtmp = wtmp->nseg)
93 wormsee(tmp) register unsigned tmp; {
94 register struct wseg *wtmp = wsegs[tmp];
95 if(!wtmp) panic("wormsee: wtmp==0");
96 for(; wtmp->nseg; wtmp = wtmp->nseg)
97 if(!cansee(wtmp->wx,wtmp->wy) && wtmp->wdispl){
98 newsym(wtmp->wx, wtmp->wy);
103 pwseg(wtmp) register struct wseg *wtmp; {
105 atl(wtmp->wx, wtmp->wy, '~');
110 cutworm(mtmp,x,y,weptyp)
111 register struct monst *mtmp;
113 register uchar weptyp; /* uwep->otyp or 0 */
115 register struct wseg *wtmp, *wtmp2;
116 register struct monst *mtmp2;
118 if(mtmp->mx == x && mtmp->my == y) return; /* hit headon */
120 /* cutting goes best with axe or sword */
122 if(weptyp == LONG_SWORD || weptyp == TWO_HANDED_SWORD ||
123 weptyp == AXE) tmp += 5;
126 /* if tail then worm just loses a tail segment */
129 if(wtmp->wx == x && wtmp->wy == y){
130 wsegs[tmp] = wtmp->nseg;
135 /* cut the worm in two halves */
138 mtmp2->mxlth = mtmp2->mnamelth = 0;
140 /* sometimes the tail end dies */
141 if(rn2(3) || !getwn(mtmp2)){
145 tmp2 = mtmp2->wormno;
146 wsegs[tmp2] = wsegs[tmp];
150 if(wtmp->nseg->wx == x && wtmp->nseg->wy == y){
151 if(tmp2) wheads[tmp2] = wtmp;
152 wsegs[tmp] = wtmp->nseg->nseg;
156 pline("You cut the worm in half.");
157 mtmp2->mhpmax = mtmp2->mhp =
158 d(mtmp2->data->mlevel, 8);
159 mtmp2->mx = wtmp->wx;
160 mtmp2->my = wtmp->wy;
165 pline("You cut off part of the worm's tail.");
172 if(!tmp2) remseg(wtmp);
175 panic("Cannot find worm segment");
178 remseg(wtmp) register struct wseg *wtmp; {
180 newsym(wtmp->wx, wtmp->wy);