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Annotation of early-roguelike/arogue5/encumb.c, Revision 1.1

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

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