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1.1 rubenllo 1: /*
2: encumb.c - Stuff to do with encumberance
3:
4: XRogue: Expeditions into the Dungeons of Doom
5: Copyright (C) 1991 Robert Pietkivitch
6: All rights reserved.
7:
8: Based on "Advanced Rogue"
9: Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
10: All rights reserved.
11:
12: See the file LICENSE.TXT for full copyright and licensing information.
13: */
14:
15: #include <curses.h>
16: #include "rogue.h"
17:
18: int packweight(struct thing *tp);
19:
20: /*
21: * updpack:
22: * Update his pack weight and adjust fooduse accordingly
23: */
24:
25: void
26: updpack(int getmax, struct thing *tp)
27: {
28:
29: reg int topcarry, curcarry;
30:
31: if (getmax)
32: tp->t_stats.s_carry = totalenc(tp); /* get total encumb */
33: curcarry = packweight(tp); /* get pack weight */
34:
35: /* Only update food use for the player (for now) */
36: if (tp == &player) {
37: topcarry = tp->t_stats.s_carry / 5; /* 20% of total carry */
38: if(curcarry > 4 * topcarry) {
39: if(rnd(100) < 80)
40: foodlev = 3; /* > 80% of pack */
41: } else if(curcarry > 3 * topcarry) {
42: if(rnd(100) < 60)
43: foodlev = 2; /* > 60% of pack */
44: } else
45: foodlev = 1; /* <= 60% of pack */
46: }
47: tp->t_stats.s_pack = curcarry; /* update pack weight */
48: }
49:
50:
51: /*
52: * packweight:
53: * Get the total weight of the hero's pack
54: */
55:
56: int
57: packweight(struct thing *tp)
58: {
59: reg struct object *obj;
60: reg struct linked_list *pc;
61: reg int weight;
62:
63: weight = 0;
64: for (pc = tp->t_pack ; pc != NULL ; pc = next(pc)) {
65: obj = OBJPTR(pc);
66: weight += itemweight(obj);
67: }
68: if (weight < 0) /* in case of amulet */
69: weight = 0;
70:
71: /* If this is the player, is he wearing a ring of carrying? */
72: if (tp == &player && ISWEARING(R_CARRY)) {
73: register int temp, i;
74:
75: temp = 0;
76: for (i=0; i<NUM_FINGERS; i++) {
77: if (cur_ring[i] != NULL && cur_ring[i]->o_which == R_CARRY) {
78: if (cur_ring[i]->o_flags & ISCURSED) temp--;
79: else temp += 2;
80: }
81: }
82: weight -= (temp * weight) / 4;
83: }
84:
85: return(weight);
86: }
87:
88: /*
89: * itemweight:
90: * Get the weight of an object
91: */
92:
93: int
94: itemweight(struct object *wh)
95: {
96: reg int weight;
97: reg int ac;
98:
99: weight = wh->o_weight; /* get base weight */
100: switch(wh->o_type) {
101: case ARMOR:
102: /*
103: * subtract 10% for each enchantment
104: * this will add weight for negative items
105: */
106: ac = armors[wh->o_which].a_class - wh->o_ac;
107: weight = ((weight*10) - (weight*ac)) / 10;
108: if (weight < 0) weight = 0;
109: when WEAPON:
110: if ((wh->o_hplus + wh->o_dplus) > 0)
111: weight /= 2;
112: }
113: if(wh->o_flags & ISCURSED)
114: weight += weight / 5; /* 20% more for cursed */
115: weight *= wh->o_count;
116: return(weight);
117: }
118:
119: /*
120: * playenc:
121: * Get hero's carrying ability above norm
122: */
123:
124: int
125: playenc(struct thing *tp)
126: {
127: register int strength;
128:
129: if (tp == &player) strength = str_compute();
130: else strength = tp->t_stats.s_str;
131:
132: return ((strength-8)*50);
133: }
134:
135: /*
136: * totalenc:
137: * Get total weight that the hero can carry
138: */
139:
140: int
141: totalenc(struct thing *tp)
142: {
143: reg int wtotal;
144:
145: wtotal = NORMENCB + playenc(tp);
146: if (tp == &player) switch(hungry_state) {
147: case F_SATIATED:
148: case F_OKAY:
149: case F_HUNGRY: ; /* no change */
150: when F_WEAK: wtotal -= wtotal / 10; /* 10% off weak */
151: when F_FAINT: wtotal /= 2; /* 50% off faint */
152: }
153: return(wtotal);
154: }
155:
156: /*
157: * whgtchk:
158: * See if the hero can carry his pack
159: */
160:
161: void
162: wghtchk(void)
163: {
164: reg int dropchk, err = TRUE;
165: reg char ch;
166:
167: inwhgt = TRUE;
168: if (pstats.s_pack > pstats.s_carry) {
169: ch = mvwinch(stdscr, hero.y, hero.x);
170: if((ch != FLOOR && ch != PASSAGE)) {
171: extinguish(wghtchk);
172: fuse(wghtchk, NULL, 1, AFTER);
173: inwhgt = FALSE;
174: return;
175: }
176: extinguish(wghtchk);
177: msg("Your pack is far too heavy for you.. ");
178: do {
179: dropchk = drop((struct linked_list *)NULL);
180: if(dropchk == 0) {
181: mpos = 0;
182: msg("You must drop something");
183: }
184: if(dropchk == TRUE)
185: err = FALSE;
186: } while(err);
187: }
188: inwhgt = FALSE;
189: }
190:
191: /*
192: * hitweight:
193: * Gets the fighting ability according to current weight
194: * This returns a +1 hit for light pack weight
195: * 0 hit for medium pack weight
196: * -1 hit for heavy pack weight
197: */
198:
199: int
200: hitweight(void)
201: {
202: return(2 - foodlev);
203: }
204: