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1.1 ! rubenllo 1: /*
! 2: * encumb.c - Stuff to do with encumberence
! 3: *
! 4: * Advanced Rogue
! 5: * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
! 6: * All rights reserved.
! 7: *
! 8: * Based on "Rogue: Exploring the Dungeons of Doom"
! 9: * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
! 10: * All rights reserved.
! 11: *
! 12: * See the file LICENSE.TXT for full copyright and licensing information.
! 13: */
! 14:
! 15: /*
! 16: * Stuff to do with encumberence
! 17: *
! 18: */
! 19:
! 20: #include "curses.h"
! 21: #include "rogue.h"
! 22:
! 23: int packweight(struct thing *tp);
! 24:
! 25: /*
! 26: * updpack:
! 27: * Update his pack weight and adjust fooduse accordingly
! 28: */
! 29: void
! 30: updpack(int getmax, struct thing *tp)
! 31: {
! 32:
! 33: reg int topcarry, curcarry;
! 34:
! 35: if (getmax)
! 36: tp->t_stats.s_carry = totalenc(tp); /* get total encumb */
! 37: curcarry = packweight(tp); /* get pack weight */
! 38:
! 39: /* Only update food use for the player (for now) */
! 40: if (tp == &player) {
! 41: topcarry = tp->t_stats.s_carry / 5; /* 20% of total carry */
! 42: if(curcarry > 4 * topcarry) {
! 43: if(rnd(100) < 80)
! 44: foodlev = 3; /* > 80% of pack */
! 45: } else if(curcarry > 3 * topcarry) {
! 46: if(rnd(100) < 60)
! 47: foodlev = 2; /* > 60% of pack */
! 48: } else
! 49: foodlev = 1; /* <= 60% of pack */
! 50: }
! 51: tp->t_stats.s_pack = curcarry; /* update pack weight */
! 52: }
! 53:
! 54:
! 55: /*
! 56: * packweight:
! 57: * Get the total weight of the hero's pack
! 58: */
! 59: int
! 60: packweight(struct thing *tp)
! 61: {
! 62: reg struct object *obj;
! 63: reg struct linked_list *pc;
! 64: reg int weight;
! 65:
! 66: weight = 0;
! 67: for (pc = tp->t_pack ; pc != NULL ; pc = next(pc)) {
! 68: obj = OBJPTR(pc);
! 69: weight += itemweight(obj);
! 70: }
! 71: if (weight < 0) /* in case of amulet */
! 72: weight = 0;
! 73:
! 74: /* If this is the player, is he wearing a ring of carrying? */
! 75: if (tp == &player && ISWEARING(R_CARRY)) {
! 76: register int temp, i;
! 77:
! 78: temp = 0;
! 79: for (i=0; i<NUM_FINGERS; i++) {
! 80: if (cur_ring[i]->o_which == R_CARRY) {
! 81: if (cur_ring[i]->o_flags & ISCURSED) temp--;
! 82: else temp++;
! 83: }
! 84: }
! 85: weight -= (temp * weight) / 4;
! 86: }
! 87:
! 88: return(weight);
! 89: }
! 90:
! 91:
! 92: /*
! 93: * itemweight:
! 94: * Get the weight of an object
! 95: */
! 96: int
! 97: itemweight(struct object *wh)
! 98: {
! 99: reg int weight;
! 100: reg int ac;
! 101:
! 102: weight = wh->o_weight; /* get base weight */
! 103: switch(wh->o_type) {
! 104: case ARMOR:
! 105: /*
! 106: * subtract 10% for each enchantment
! 107: * this will add weight for negative items
! 108: */
! 109: ac = armors[wh->o_which].a_class - wh->o_ac;
! 110: weight = ((weight*10) - (weight*ac)) / 10;
! 111: if (weight < 0) weight = 0;
! 112: when WEAPON:
! 113: if ((wh->o_hplus + wh->o_dplus) > 0)
! 114: weight /= 2;
! 115: }
! 116: if(wh->o_flags & ISCURSED)
! 117: weight += weight / 5; /* 20% more for cursed */
! 118: weight *= wh->o_count;
! 119: return(weight);
! 120: }
! 121:
! 122:
! 123: /*
! 124: * playenc:
! 125: * Get hero's carrying ability above norm
! 126: */
! 127: int
! 128: playenc(struct thing *tp)
! 129: {
! 130: register int strength;
! 131:
! 132: if (tp == &player) strength = str_compute();
! 133: else strength = tp->t_stats.s_str;
! 134:
! 135: return ((strength-8)*50);
! 136: }
! 137:
! 138:
! 139: /*
! 140: * totalenc:
! 141: * Get total weight that the hero can carry
! 142: */
! 143: int
! 144: totalenc(struct thing *tp)
! 145: {
! 146: reg int wtotal;
! 147:
! 148: wtotal = NORMENCB + playenc(tp);
! 149: if (tp == &player) switch(hungry_state) {
! 150: case F_SATIATED:
! 151: case F_OKAY:
! 152: case F_HUNGRY: ; /* no change */
! 153: when F_WEAK: wtotal -= wtotal / 10; /* 10% off weak */
! 154: when F_FAINT: wtotal /= 2; /* 50% off faint */
! 155: }
! 156: return(wtotal);
! 157: }
! 158:
! 159:
! 160:
! 161: /*
! 162: * whgtchk:
! 163: * See if the hero can carry his pack
! 164: */
! 165:
! 166: void
! 167: wghtchk(void)
! 168: {
! 169: reg int dropchk, err = TRUE;
! 170: reg char ch;
! 171:
! 172: inwhgt = TRUE;
! 173: if (pstats.s_pack > pstats.s_carry) {
! 174: ch = CCHAR( mvwinch(stdscr, hero.y, hero.x) );
! 175: if((ch != FLOOR && ch != PASSAGE)) {
! 176: extinguish(wghtchk);
! 177: fuse(wghtchk, NULL, 1, AFTER);
! 178: inwhgt = FALSE;
! 179: return;
! 180: }
! 181: extinguish(wghtchk);
! 182: msg("Your pack is too heavy for you");
! 183: do {
! 184: dropchk = drop(NULL);
! 185: if(dropchk == 0) {
! 186: mpos = 0;
! 187: msg("You must drop something");
! 188: }
! 189: if(dropchk == TRUE)
! 190: err = FALSE;
! 191: } while(err);
! 192: }
! 193: inwhgt = FALSE;
! 194: }
! 195:
! 196:
! 197: /*
! 198: * hitweight:
! 199: * Gets the fighting ability according to current weight
! 200: * This returns a +1 hit for light pack weight
! 201: * 0 hit for medium pack weight
! 202: * -1 hit for heavy pack weight
! 203: */
! 204:
! 205: int
! 206: hitweight(void)
! 207: {
! 208: return(2 - foodlev);
! 209: }