view arogue5/encumb.c @ 233:0990adf580ee

Declare some function arguments as const. Some functions, mostly in fight.c, declared variables as pointers to const char but passed them to functions that took pointers to ordinary char. The strings did not actually get modified, so adding 'const' to the function definitions removed the warnings.
author John "Elwin" Edwards
date Sun, 06 Mar 2016 19:32:47 -0500
parents 56e748983fa8
children
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/*
 * Stuff to do with encumberence
 *
 * Advanced Rogue
 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
 * All rights reserved.
 *
 * Based on "Super-Rogue"
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

#include "curses.h"
#include "rogue.h"

int packweight(void);

/*
 * updpack:
 *	Update his pack weight and adjust fooduse accordingly
 */
void
updpack(bool getmax)
{

	reg int topcarry, curcarry;

	if (getmax)
	    pstats.s_carry = totalenc();	/* get total encumb */
	curcarry = packweight();		/* get pack weight */
	topcarry = pstats.s_carry / 5;		/* 20% of total carry */
	if(curcarry > 4 * topcarry) {
	    if(rnd(100) < 80)
		foodlev = 3;			/* > 80% of pack */
	} else if(curcarry > 3 * topcarry) {
	    if(rnd(100) < 60)
		foodlev = 2;			/* > 60% of pack */
	} else
	    foodlev = 1;			/* <= 60% of pack */
	pstats.s_pack = curcarry;		/* update pack weight */
}


/*
 * packweight:
 *	Get the total weight of the hero's pack
 */
int
packweight(void)
{
	reg struct object *obj;
	reg struct linked_list *pc;
	reg int weight;

	weight = 0;
	for(pc = pack ; pc != NULL ; pc = next(pc)) {
	    obj = OBJPTR(pc);
	    weight += itemweight(obj);
	}
	if(weight < 0)		/* in case of amulet */
	     weight = 0;
	if(ISWEARING(R_HEAVY))
	    weight += weight / 4;
	return(weight);
}


/*
 * itemweight:
 *	Get the weight of an object
 */
int
itemweight(struct object *wh)
{
	reg int weight;
	reg int ac;

	weight = wh->o_weight;		/* get base weight */
	switch(wh->o_type) {
	    case ARMOR:
		/*
		 * subtract 10% for each enchantment
		 * this will add weight for negative items
		 */
		ac = armors[wh->o_which].a_class - wh->o_ac;
		weight = ((weight*10) - (weight*ac)) / 10;
		if (weight < 0) weight = 0;
	    when WEAPON:
		if ((wh->o_hplus + wh->o_dplus) > 0)
			weight /= 2;
	}
	if(wh->o_flags & ISCURSED)
		weight += weight / 5;	/* 20% more for cursed */
        weight *= wh->o_count;
	return(weight);
}


/*
 * playenc:
 *	Get hero's carrying ability above norm
 */
int
playenc(void)
{
	return ((str_compute()-8)*50);
}


/*
 * totalenc:
 *	Get total weight that the hero can carry
 */
int
totalenc(void)
{
	reg int wtotal;

	wtotal = NORMENCB + playenc();
	switch(hungry_state) {
		case F_OKAY:
		case F_HUNGRY:	;			/* no change */
		when F_WEAK:	wtotal -= wtotal / 10;	/* 10% off weak */
		when F_FAINT:	wtotal /= 2;		/* 50% off faint */
	}
	return(wtotal);
}



/*
 * whgtchk:
 *	See if the hero can carry his pack
 */

void
wghtchk(void)
{
	reg int dropchk, err = TRUE;
	reg char ch;

	inwhgt = TRUE;
	if (pstats.s_pack > pstats.s_carry) {
	    ch = CCHAR( mvwinch(stdscr, hero.y, hero.x) );
	    if((ch != FLOOR && ch != PASSAGE)) {
		extinguish(wghtchk);
		fuse(wghtchk,NULL,1,AFTER);
		inwhgt = FALSE;
		return;
	    }
	    extinguish(wghtchk);
	    msg("Your pack is too heavy for you");
	    do {
		dropchk = drop(NULL);
		if(dropchk == FALSE) {
		    mpos = 0;
		    msg("You must drop something");
		}
		if(dropchk == TRUE)
		    err = FALSE;
	    } while(err);
	}
	inwhgt = FALSE;
}


/*
 * hitweight:
 *	Gets the fighting ability according to current weight
 * 	This returns a  +1 hit for light pack weight
 * 			 0 hit for medium pack weight
 *			-1 hit for heavy pack weight
 */

int
hitweight(void)
{
	return(2 - foodlev);
}