Esempio n. 1
0
/*
 * Evaluate the object's overall power level.
 */
s32b object_power(const object_type* o_ptr, int verbose, ang_file *log_file,
	bool known)
{
	s32b p = 0, q = 0, slay_pwr = 0;
	unsigned int i, j;
	int extra_stat_bonus = 0, mult = 1, num_slays = 0, k = 1;
	bitflag flags[OF_SIZE], mask[OF_SIZE];

	/* Zero the flag counts */
	for (i = 0; i < N_ELEMENTS(sets); i++)
		sets[i].count = 0;

	/* Extract the flags */
	if (known) {
		file_putf(log_file, "Object is deemed known\n");
		object_flags(o_ptr, flags);
	} else {
		file_putf(log_file, "Object may not be fully known\n");
		object_flags_known(o_ptr, flags);
	}

	/* Log the flags in human-readable form */
	if (verbose)
		log_flags(flags, log_file);

	/* Get the slay power and number of slay/brand types */
	create_mask(mask, FALSE, OFT_SLAY, OFT_KILL, OFT_BRAND, OFT_MAX);
	num_slays = list_slays(flags, mask, NULL, NULL, NULL, TRUE);
	if (num_slays)
		slay_pwr = slay_power(o_ptr, verbose, log_file, known);

	/* Start with any damage boost from the item itself */
	p += (o_ptr->to_d * DAMAGE_POWER / 2);
	file_putf(log_file, "Adding power from to_dam, total is %d\n", p);

	/* Add damage from dice for any wieldable weapon or ammo */
	if (wield_slot(o_ptr) == INVEN_WIELD || obj_is_ammo(o_ptr)) {
		p += (o_ptr->dd * (o_ptr->ds + 1) * DAMAGE_POWER / 4);
		file_putf(log_file, "Adding power for dam dice, total is %d\n", p);
	/* Add 2nd lot of damage power for nonweapons */
	} else if (wield_slot(o_ptr) != INVEN_BOW) {
		p += (o_ptr->to_d * DAMAGE_POWER);
		file_putf(log_file, "Adding power from nonweap to_dam, total is %d\n", p);
		/* Add power boost for nonweapons with combat flags */
		if (num_slays || of_has(flags, OF_BLOWS) || of_has(flags, OF_SHOTS) ||
				of_has(flags, OF_MIGHT)) {
			p += (WEAP_DAMAGE * DAMAGE_POWER);
			file_putf(log_file, "Adding power for nonweap combat flags, total is %d\n", p);
		}
	}

	/* Add ammo damage for launchers, get multiplier and rescale */
	if (wield_slot(o_ptr) == INVEN_BOW) {
		p += (archery[o_ptr->sval / 10].ammo_dam * DAMAGE_POWER / 2);
		file_putf(log_file, "Adding power from ammo, total is %d\n", p);

		mult = bow_multiplier(o_ptr->sval);
		file_putf(log_file, "Base mult for this weapon is %d\n", mult);
	}

	/* Add launcher bonus for ego ammo, multiply for launcher and rescale */
	if (obj_is_ammo(o_ptr)) {
		if (o_ptr->ego)
			p += (archery[o_ptr->tval - TV_SHOT].launch_dam * DAMAGE_POWER / 2);
		p = p * archery[o_ptr->tval - TV_SHOT].launch_mult / (2 * MAX_BLOWS);
		file_putf(log_file, "After multiplying ammo and rescaling, power is %d\n", p);
	}

	/* Add power for extra blows */
	if (of_has(flags, OF_BLOWS)) {
		j = which_pval(o_ptr, OF_BLOWS);
		if (known || object_this_pval_is_visible(o_ptr, j)) {
			if (o_ptr->pval[j] >= INHIBIT_BLOWS) {
				p += INHIBIT_POWER;
				file_putf(log_file, "INHIBITING - too many extra blows\n");
			} else {
				p = p * (MAX_BLOWS + o_ptr->pval[j]) / MAX_BLOWS;
				/* Add boost for assumed off-weapon damage */
				p += (NONWEAP_DAMAGE * o_ptr->pval[j] * DAMAGE_POWER / 2);
				file_putf(log_file, "Adding power for extra blows, total is %d\n", p);
			}
		}
	}

	/* Add power for extra shots - note that we cannot handle negative shots */
	if (of_has(flags, OF_SHOTS)) {
		j = which_pval(o_ptr, OF_SHOTS);
		if (known || object_this_pval_is_visible(o_ptr, j)) {
			if (o_ptr->pval[j] >= INHIBIT_SHOTS) {
				p += INHIBIT_POWER;
				file_putf(log_file, "INHIBITING - too many extra shots\n");
			} else if (o_ptr->pval[j] > 0) {
				p = (p * (1 + o_ptr->pval[j]));
				file_putf(log_file, "Extra shots: multiplying power by 1 + %d, total is %d\n", o_ptr->pval[j], p);
			}
		}
	}

	/* Add power for extra might */
	if (of_has(flags, OF_MIGHT)) {
		j = which_pval(o_ptr, OF_MIGHT);
		if (known || object_this_pval_is_visible(o_ptr, j)) {
			if (o_ptr->pval[j] >= INHIBIT_MIGHT) {
				p += INHIBIT_POWER;
				mult = 1;	/* don't overflow */
				file_putf(log_file, "INHIBITING - too much extra might\n");
			} else
				mult += o_ptr->pval[j];
			file_putf(log_file, "Mult after extra might is %d\n", mult);
		}
	}
	p *= mult;
	file_putf(log_file, "After multiplying power for might, total is %d\n", p);

	/* Apply the correct slay multiplier */
	if (slay_pwr) {
		p = (p * (slay_pwr / 10)) / (tot_mon_power / 10);
		file_putf(log_file, "Adjusted for slay power, total is %d\n", p);
	}

	/* Melee weapons assume MAX_BLOWS per turn, so we must divide by MAX_BLOWS
     * to get equal ratings for launchers. */
	if (wield_slot(o_ptr) == INVEN_BOW) {
		p /= MAX_BLOWS;
		file_putf(log_file, "Rescaling bow power, total is %d\n", p);
	}

	/* Add power for +to_hit */
	p += (o_ptr->to_h * TO_HIT_POWER / 2);
	file_putf(log_file, "Adding power for to hit, total is %d\n", p);

	/* Add power for base AC and adjust for weight */
	if (o_ptr->ac) {
		q += BASE_ARMOUR_POWER;
		q += (o_ptr->ac * BASE_AC_POWER / 2);
		file_putf(log_file, "Adding %d power for base AC value\n", q);

		/* Add power for AC per unit weight */
		if (o_ptr->weight > 0) {
			i = 800 * (o_ptr->ac + o_ptr->to_a) / o_ptr->weight;

			/* Avoid overpricing Elven Cloaks */
			if (i > 450) i = 450;

			q *= i;
			q /= 100;

		/* Weightless (ethereal) armour items get fixed boost */
		} else
			q *= 5;
		p += q;
		file_putf(log_file, "Adding power for AC per unit weight, now %d\n", p);
	}
	/* Add power for +to_ac */
	p += (o_ptr->to_a * TO_AC_POWER / 2);
	file_putf(log_file, "Adding power for to_ac of %d, total is %d\n", o_ptr->to_a, p);
	if (o_ptr->to_a > HIGH_TO_AC) {
		p += ((o_ptr->to_a - (HIGH_TO_AC - 1)) * TO_AC_POWER);
		file_putf(log_file, "Adding power for high to_ac value, total is %d\n", p);
	}
	if (o_ptr->to_a > VERYHIGH_TO_AC) {
		p += ((o_ptr->to_a - (VERYHIGH_TO_AC -1)) * TO_AC_POWER * 2);
		file_putf(log_file, "Adding power for very high to_ac value, total is %d\n", p);
	}
	if (o_ptr->to_a >= INHIBIT_AC) {
		p += INHIBIT_POWER;
		file_putf(log_file, "INHIBITING: AC bonus too high\n");
	}


	/* Add power for light sources by radius XXX Hack - rewrite calc_torch! */
	if (wield_slot(o_ptr) == INVEN_LIGHT) {
		p += BASE_LIGHT_POWER;

		/* Artifact lights have larger radius so add more */
		if (o_ptr->artifact)
			p += BASE_LIGHT_POWER;

		file_putf(log_file, "Adding power for light radius, total is %d\n", p);
	}

	/* Add base power for jewelry */
	if (object_is_jewelry(o_ptr)) {
		p += BASE_JEWELRY_POWER;
		file_putf(log_file, "Adding power for jewelry, total is %d\n", p);
	}

	/* Add power for non-derived flags (derived flags have flag_power 0) */
	for (i = 0; i < OF_MAX; i++) {
		if (of_has(flags, i)) {
			if (flag_uses_pval(i)) {
				j = which_pval(o_ptr, i);
				if (known || object_this_pval_is_visible(o_ptr, j)) {
					k = o_ptr->pval[j];
					extra_stat_bonus += (k * pval_mult(i));
				}
			} else
				k = 1;

			if (flag_power(i)) {
				p += (k * flag_power(i) * slot_mult(i, wield_slot(o_ptr)));
				file_putf(log_file, "Adding power for %s, total is %d\n", flag_name(i), p);
			}

			/* Track combinations of flag types - note we ignore SUST_CHR */
			for (j = 0; j < N_ELEMENTS(sets); j++)
				if ((sets[j].type == obj_flag_type(i)) && (i != OF_SUST_CHR))
					sets[j].count++;
		}
	}

	/* Add extra power term if there are a lot of ability bonuses */
	if (extra_stat_bonus > 249) {
		file_putf(log_file, "Inhibiting!  (Total ability bonus of %d is too high)\n", extra_stat_bonus);
		p += INHIBIT_POWER;
	} else {
		p += ability_power[extra_stat_bonus / 10];
		file_putf(log_file, "Adding power for pval total of %d, total is %d\n", extra_stat_bonus, p);
	}

	/* Add extra power for multiple flags of the same type */
	for (i = 0; i < N_ELEMENTS(sets); i++) {
		if (sets[i].count > 1) {
			p += (sets[i].factor * sets[i].count * sets[i].count);
			file_putf(log_file, "Adding power for multiple flags of type %d, total is %d\n", i, p);
		}

		/* Add bonus if item has a full set of these flags */
		if (sets[i].count == sets[i].size) {
			p += sets[i].bonus;
			file_putf(log_file, "Adding power for full set of type %d, total is %d\n", i, p);
		}
	}

	/* add power for effect */
	if (known || object_effect_is_known(o_ptr))	{
		if (o_ptr->artifact && o_ptr->artifact->effect) {
			p += effect_power(o_ptr->artifact->effect);
			file_putf(log_file, "Adding power for artifact activation, total is %d\n", p);
		} else {
			p += effect_power(o_ptr->kind->effect);
			file_putf(log_file, "Adding power for item activation, total is %d\n", p);
		}
	}

	file_putf(log_file, "FINAL POWER IS %d\n", p);

	return p;
}
Esempio n. 2
0
/*
 * Evaluate the object's overall power level.
 */
s32b object_power(const object_type* o_ptr, int verbose, ang_file *log_file,
	bool known)
{
	s32b p = 0;
	object_kind *k_ptr;
	int immunities = 0;
	int misc = 0;
	int lowres = 0;
	int highres = 0;
	int sustains = 0;
	int extra_stat_bonus = 0;
	int i;
	bitflag flags[OF_SIZE];
	const slay_t *s_ptr;

	/* Extract the flags */
	if (known)
	{
		LOG_PRINT("Object is known\n");
		object_flags(o_ptr, flags);
	}
	else
	{
		LOG_PRINT("Object is not fully known\n");
		object_flags_known(o_ptr, flags);
	}

	if (verbose)
	{
		LOG_PRINT("Object flags =");
		for (i = 0; i < (int)OF_SIZE; i++)
			LOG_PRINT1(" %02x", flags[i]);
		LOG_PRINT("\n");
	}

	k_ptr = &k_info[o_ptr->k_idx];

	/* Evaluate certain abilities based on type of object. */
	switch (o_ptr->tval)
	{
		case TV_BOW:
		{
			int mult;

			/*
			 * Damage multiplier for bows should be weighted less than that
			 * for melee weapons, since players typically get fewer shots
			 * than hits (note, however, that the multipliers are applied
			 * afterwards in the bow calculation, not before as for melee
			 * weapons, which tends to bring these numbers back into line).
			 * ToDo: rework evaluation of negative pvals
			 */

			p += (o_ptr->to_d * DAMAGE_POWER / 2);
			LOG_PRINT1("Adding power from to_dam, total is %d\n", p);

			/*
			 * Add the average damage of fully enchanted (good) ammo for this
			 * weapon.  Could make this dynamic based on k_info if desired.
			 * ToDo: precisely that.
			 */

			if (o_ptr->sval == SV_SLING)
			{
				p += (AVG_SLING_AMMO_DAMAGE * DAMAGE_POWER / 2);
			}
			else if (o_ptr->sval == SV_SHORT_BOW ||
				o_ptr->sval == SV_LONG_BOW)
			{
				p += (AVG_BOW_AMMO_DAMAGE * DAMAGE_POWER / 2);
			}
			else if (o_ptr->sval == SV_LIGHT_XBOW ||
				o_ptr->sval == SV_HEAVY_XBOW)
			{
				p += (AVG_XBOW_AMMO_DAMAGE * DAMAGE_POWER / 2);
			}

			LOG_PRINT1("Adding power from ammo, total is %d\n", p);

			mult = bow_multiplier(o_ptr->sval);

			LOG_PRINT1("Base multiplier for this weapon is %d\n", mult);

			if (of_has(flags, OF_MIGHT) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				if (o_ptr->pval >= INHIBIT_MIGHT || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					mult = 1;	/* don't overflow */
					LOG_PRINT("INHIBITING - too much extra might\n");
				}
				else
				{
					mult += o_ptr->pval;
				}
				LOG_PRINT1("Extra might multiple is %d\n", mult);
			}
			p *= mult;
			LOG_PRINT2("Multiplying power by %d, total is %d\n", mult, p);

			if (of_has(flags, OF_SHOTS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra shots: %d\n", o_ptr->pval);

				if (o_ptr->pval >= INHIBIT_SHOTS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING - too many extra shots\n");
				}
				else if (o_ptr->pval > 0)
				{
					p = (p * (1 + o_ptr->pval));
					LOG_PRINT2("Multiplying power by 1 + %d, total is %d\n",
						o_ptr->pval, p);
				}
			}

			/* Apply the correct slay multiplier */
			p = (p * slay_power(o_ptr, verbose, log_file, flags)) / tot_mon_power;
			LOG_PRINT1("Adjusted for slay power, total is %d\n", p);

			if (o_ptr->weight < k_ptr->weight)
			{
				p++;
				LOG_PRINT("Incrementing power by one for low weight\n");
			}

			/*
			 * Correction to match ratings to melee damage ratings.
			 * We multiply all missile weapons by 1.5 in order to compare damage.
			 * (CR 11/20/01 - changed this to 1.25).
			 * (CC 25/07/10 - changed this back to 1.5).
			 * Melee weapons assume MAX_BLOWS per turn, so we must
			 * also divide by MAX_BLOWS to get equal ratings.
			 */
			p = sign(p) * (ABS(p) * BOW_RESCALER / (10 * MAX_BLOWS));
			LOG_PRINT1("Rescaling bow power, total is %d\n", p);

			p += sign(o_ptr->to_h) * (ABS(o_ptr->to_h) * TO_HIT_POWER / 2);
			LOG_PRINT1("Adding power from to_hit, total is %d\n", p);

			break;
		}
		case TV_SHOT:
		case TV_ARROW:
		case TV_BOLT:
		case TV_DIGGING:
		case TV_HAFTED:
		case TV_POLEARM:
		case TV_SWORD:
		{
			p += (o_ptr->dd * (o_ptr->ds + 1) * DAMAGE_POWER / 4);
			LOG_PRINT1("Adding power for dam dice, total is %d\n", p);

			/* Apply the correct slay multiplier */
			p = (p * slay_power(o_ptr, verbose, log_file, flags)) / tot_mon_power;
			LOG_PRINT1("Adjusted for slay power, total is %d\n", p);

			p += (o_ptr->to_d * DAMAGE_POWER / 2);
			LOG_PRINT1("Adding power for to_dam, total is %d\n", p);

			if (of_has(flags, OF_BLOWS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra blows: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_BLOWS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING, too many extra blows or a negative number\n");
				}
				else if (o_ptr->pval > 0)
				{
					p = sign(p) * ((ABS(p) * (MAX_BLOWS + o_ptr->pval)) 
						/ MAX_BLOWS);
					/* Add an extra amount per extra blow to account for damage/branding rings */
					p += ((MELEE_DAMAGE_BOOST + RING_BRAND_DMG) * o_ptr->pval * DAMAGE_POWER / (2 * MAX_BLOWS));
					LOG_PRINT1("Adding power for blows, total is %d\n", p);
				}
			}

			/*
			 * add extra power for multiple slays/brands, as these
			 * add diminishing amounts to average damage
			 */
			i = 0;

			for (s_ptr = slay_table; s_ptr->slay_flag; s_ptr++)
			{
				if (!of_has(flags, s_ptr->slay_flag)) continue;

				i++;
				if (i > 1) p += (i * 3);
			}
			LOG_PRINT1("Adding power for multiple slays/brands, total is %d\n", p);

			/* add launcher bonus for ego ammo, and multiply */
			if (o_ptr->tval == TV_SHOT)
			{
				if (o_ptr->name2) p += (AVG_LAUNCHER_DMG * DAMAGE_POWER / 2);
				p = p * AVG_SLING_MULT * BOW_RESCALER / (20 * MAX_BLOWS);
			}
			if (o_ptr->tval == TV_ARROW)
			{
				if (o_ptr->name2) p += (AVG_LAUNCHER_DMG * DAMAGE_POWER / 2);
				p = p * AVG_BOW_MULT * BOW_RESCALER / (20 * MAX_BLOWS);
			}
			if (o_ptr->tval == TV_BOLT)
			{
				if (o_ptr->name2) p += (AVG_LAUNCHER_DMG * DAMAGE_POWER / 2);
				p = p * AVG_XBOW_MULT * BOW_RESCALER / (20 * MAX_BLOWS);
			}
			LOG_PRINT1("After multiplying ammo and rescaling, power is %d\n", p);

			p += sign(o_ptr->to_h) * (ABS(o_ptr->to_h) * TO_HIT_POWER / 2);
			LOG_PRINT1("Adding power for to hit, total is %d\n", p);

			/* Remember, weight is in 0.1 lb. units. */
			if (o_ptr->weight < k_ptr->weight)
			{
				p += (k_ptr->weight - o_ptr->weight) / 20;
				LOG_PRINT1("Adding power for low weight, total is %d\n", p);
			}

			break;
		}
		case TV_BOOTS:
		case TV_GLOVES:
		case TV_HELM:
		case TV_CROWN:
		case TV_SHIELD:
		case TV_CLOAK:
		case TV_SOFT_ARMOR:
		case TV_HARD_ARMOR:
		case TV_DRAG_ARMOR:
		{
			p += BASE_ARMOUR_POWER;
			LOG_PRINT1("Armour item, base power is %d\n", p);

			p += sign(o_ptr->ac) * ((ABS(o_ptr->ac) * BASE_AC_POWER) / 2);
			LOG_PRINT1("Adding power for base AC value, total is %d\n", p);

			/* Add power for AC per unit weight */
			if (o_ptr->weight > 0)
			{
				i = 1000 * (o_ptr->ac + o_ptr->to_a) /
					o_ptr->weight;

				/* Stop overpricing Elven Cloaks */
				if (i > 400) i = 400;

				/* Adjust power */
				p *= i;
				p /= 100;
			}
			/* Weightless (ethereal) items get fixed boost */
			else p *= 5;

			/* Add power for +hit and +dam */
			p += sign(o_ptr->to_h) * (ABS(o_ptr->to_h) * TO_HIT_POWER);
			LOG_PRINT1("Adding power for to_hit, total is %d\n", p);

			p += o_ptr->to_d * DAMAGE_POWER;
			LOG_PRINT1("Adding power for to_dam, total is %d\n", p);

			/* Apply the correct brand/slay multiplier */
			p += (((2 * (o_ptr->to_d + RING_BRAND_DMG)
				* slay_power(o_ptr, verbose, log_file, flags))
				/ tot_mon_power) - (2 * (o_ptr->to_d + RING_BRAND_DMG)));
			LOG_PRINT1("Adjusted for brand/slay power, total is %d\n", p);

			/* Add power for extra blows */
			if (of_has(flags, OF_BLOWS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra blows: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_BLOWS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING, too many extra blows or a negative number\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((MELEE_DAMAGE_BOOST + RING_BRAND_DMG + o_ptr->to_d) * o_ptr->pval * DAMAGE_POWER / MAX_BLOWS);
					LOG_PRINT1("Adding power for extra blows, total is %d\n", p);
				}
			}

			/* Add power for extra shots */
			if (of_has(flags, OF_SHOTS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra shots: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_SHOTS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING - too many extra shots\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((AVG_XBOW_AMMO_DAMAGE + AVG_LAUNCHER_DMG) * AVG_XBOW_MULT * o_ptr->pval * DAMAGE_POWER * BOW_RESCALER / (20 * MAX_BLOWS));
					LOG_PRINT1("Adding power for extra shots - total is %d\n", p);
				}
			}

			break;
		}
		case TV_LIGHT:
		{
			p += BASE_LIGHT_POWER;
			LOG_PRINT("Light source, adding base power\n");

			p += sign(o_ptr->to_h) * (ABS(o_ptr->to_h) * TO_HIT_POWER);
			LOG_PRINT1("Adding power for to_hit, total is %d\n", p);

			p += o_ptr->to_d * DAMAGE_POWER;
			LOG_PRINT1("Adding power for to_dam, total is %d\n", p);

			/* Apply the correct brand/slay multiplier */
			p += (((2 * (o_ptr->to_d + RING_BRAND_DMG)
				* slay_power(o_ptr, verbose, log_file, flags))
				/ tot_mon_power) - (2 * (o_ptr->to_d + RING_BRAND_DMG)));
			LOG_PRINT1("Adjusted for brand/slay power, total is %d\n", p);

			/* Add power for extra blows */
			if (of_has(flags, OF_BLOWS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra blows: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_BLOWS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING, too many extra blows or a negative number\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((MELEE_DAMAGE_BOOST + RING_BRAND_DMG + o_ptr->to_d) * o_ptr->pval * DAMAGE_POWER / MAX_BLOWS);
					LOG_PRINT1("Adding power for extra blows, total is %d\n", p);
				}
			}

			/* Add power for extra shots */
			if (of_has(flags, OF_SHOTS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra shots: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_SHOTS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING - too many extra shots\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((AVG_XBOW_AMMO_DAMAGE + AVG_LAUNCHER_DMG) * AVG_XBOW_MULT * o_ptr->pval * DAMAGE_POWER * BOW_RESCALER / (20 * MAX_BLOWS));
					LOG_PRINT1("Adding power for extra shots - total is %d\n", p);
				}
			}

			/*
			 * Big boost for extra light radius
			 * n.b. Another few points are added below
			 */
			if (of_has(flags, OF_LIGHT)) p += 30;

			break;
		}
		case TV_RING:
		case TV_AMULET:
		{
			p += BASE_JEWELRY_POWER;
			LOG_PRINT("Jewellery - adding base power\n");

			p += sign(o_ptr->to_h) * (ABS(o_ptr->to_h) * TO_HIT_POWER);
			LOG_PRINT1("Adding power for to_hit, total is %d\n", p);

			p += o_ptr->to_d * DAMAGE_POWER;
			LOG_PRINT1("Adding power for to_dam, total is %d\n", p);

			/* Apply the correct brand/slay multiplier */
			p += (((2 * (o_ptr->to_d + RING_BRAND_DMG)
				* slay_power(o_ptr, verbose, log_file, flags))
				/ tot_mon_power) - (2 * (o_ptr->to_d + RING_BRAND_DMG)));
			LOG_PRINT1("Adjusted for brand/slay power, total is %d\n", p);

			/* Add power for extra blows */
			if (of_has(flags, OF_BLOWS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra blows: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_BLOWS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING, too many extra blows or a negative number\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((MELEE_DAMAGE_BOOST + RING_BRAND_DMG + o_ptr->to_d) * o_ptr->pval * DAMAGE_POWER / MAX_BLOWS);
					LOG_PRINT1("Adding power for extra blows, total is %d\n", p);
				}
			}

			/* Add power for extra shots */
			if (of_has(flags, OF_SHOTS) &&
			    (known || object_pval_is_visible(o_ptr)))
			{
				LOG_PRINT1("Extra shots: %d\n", o_ptr->pval);
				if (o_ptr->pval >= INHIBIT_SHOTS || o_ptr->pval < 0)
				{
					p += INHIBIT_POWER;	/* inhibit */
					LOG_PRINT("INHIBITING - too many extra shots\n");
				}
				else if (o_ptr->pval > 0)
				{
					p += ((AVG_XBOW_AMMO_DAMAGE + AVG_LAUNCHER_DMG) * AVG_XBOW_MULT * o_ptr->pval * DAMAGE_POWER * BOW_RESCALER / (20 * MAX_BLOWS));
					LOG_PRINT1("Adding power for extra shots - total is %d\n", p);
				}
			}

			break;
		}
	}

	/* Other abilities are evaluated independent of the object type. */
	p += sign(o_ptr->to_a) * (ABS(o_ptr->to_a) * TO_AC_POWER / 2);
	LOG_PRINT2("Adding power for to_ac of %d, total is %d\n", o_ptr->to_a, p);

	if (o_ptr->to_a > HIGH_TO_AC)
	{
		p += ((o_ptr->to_a - (HIGH_TO_AC - 1)) * TO_AC_POWER / 2);
		LOG_PRINT1("Adding power for high to_ac value, total is %d\n", p);
	}
	if (o_ptr->to_a > VERYHIGH_TO_AC)
	{
		p += ((o_ptr->to_a - (VERYHIGH_TO_AC -1)) * TO_AC_POWER / 2);
		LOG_PRINT1("Adding power for very high to_ac value, total is %d\n", p);
	}
	if (o_ptr->to_a >= INHIBIT_AC)
	{
		p += INHIBIT_POWER;	/* inhibit */
		LOG_PRINT("INHIBITING: AC bonus too high\n");
	}

	if ((o_ptr->pval > 0) && (known || object_pval_is_visible(o_ptr)))
	{
		if (of_has(flags, OF_STR))
		{
			p += STR_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for STR bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_INT))
		{
			p += INT_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for INT bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_WIS))
		{
			p += WIS_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for WIS bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_DEX))
		{
			p += DEX_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for DEX bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_CON))
		{
			p += CON_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for CON bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_STEALTH))
		{
			p += STEALTH_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for Stealth bonus %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_SEARCH))
		{
			p += SEARCH_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for searching bonus %d, total is %d\n", o_ptr->pval , p);
		}
		/* Add extra power term if there are a lot of ability bonuses */
		if (o_ptr->pval > 0)
		{
			extra_stat_bonus += (of_has(flags, OF_STR) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_INT) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_WIS) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_DEX) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_CON) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_CHR) ? 0 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_STEALTH) ? 1 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_INFRA) ? 0 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_TUNNEL) ? 0 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_SEARCH) ? 0 * o_ptr->pval : 0);
			extra_stat_bonus += (of_has(flags, OF_SPEED) ? 0 * o_ptr->pval : 0);

			if (o_ptr->tval == TV_BOW)
			{
				extra_stat_bonus += (of_has(flags, OF_MIGHT) ? 5 * o_ptr->pval / 2 : 0);
				extra_stat_bonus += (of_has(flags, OF_SHOTS) ? 3 * o_ptr->pval : 0);
			}
			else if ( (o_ptr->tval == TV_DIGGING) || (o_ptr->tval == TV_HAFTED) ||
			          (o_ptr->tval == TV_POLEARM) || (o_ptr->tval == TV_SWORD) )
			{
				extra_stat_bonus += (of_has(flags, OF_BLOWS) ? 3 * o_ptr->pval : 0);
			}

			if (extra_stat_bonus > 24)
			{
				/* Inhibit */
				LOG_PRINT1("Inhibiting!  (Total ability bonus of %d is too high)\n", extra_stat_bonus);
				p += INHIBIT_POWER;
			}
			else
			{
				p += ability_power[extra_stat_bonus];
				LOG_PRINT2("Adding power for combination of %d, total is %d\n", ability_power[extra_stat_bonus], p);
			}
		}

	}
	else if ((o_ptr->pval < 0) && (known || object_pval_is_visible(o_ptr)))
	{
		if (of_has(flags, OF_STR)) p += 4 * o_ptr->pval;
		if (of_has(flags, OF_INT)) p += 2 * o_ptr->pval;
		if (of_has(flags, OF_WIS)) p += 2 * o_ptr->pval;
		if (of_has(flags, OF_DEX)) p += 3 * o_ptr->pval;
		if (of_has(flags, OF_CON)) p += 4 * o_ptr->pval;
		if (of_has(flags, OF_STEALTH)) p += o_ptr->pval;
		LOG_PRINT1("Subtracting power for negative ability values, total is %d\n", p);
	}

	if (known || object_pval_is_visible(o_ptr))
	{
		if (of_has(flags, OF_CHR))
		{
			p += CHR_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for CHR bonus/penalty %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_INFRA))
		{
			p += INFRA_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for infra bonus/penalty %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_TUNNEL))
		{
			p += TUNN_POWER * o_ptr->pval;
			LOG_PRINT2("Adding power for tunnelling bonus/penalty %d, total is %d\n", o_ptr->pval, p);
		}
		if (of_has(flags, OF_SPEED))
		{
			p += sign(o_ptr->pval) * speed_power[ABS(o_ptr->pval)];
			LOG_PRINT2("Adding power for speed bonus/penalty %d, total is %d\n", o_ptr->pval, p);
		}
	}

#define ADD_POWER1(string, val, flag) \
	if (of_has(flags, flag)) { \
		p += (val); \
		LOG_PRINT1("Adding power for " string ", total is %d\n", p); \
	}

#define ADD_POWER2(string, val, flag, extra) \
	if (of_has(flags, flag)) { \
		p += (val); \
		extra; \
		LOG_PRINT1("Adding power for " string ", total is %d\n", p); \
	}

	ADD_POWER2("sustain STR",         9, OF_SUST_STR, sustains++);
	ADD_POWER2("sustain INT",         4, OF_SUST_INT, sustains++);
	ADD_POWER2("sustain WIS",         4, OF_SUST_WIS, sustains++);
	ADD_POWER2("sustain DEX",         7, OF_SUST_DEX, sustains++);
	ADD_POWER2("sustain CON",         8, OF_SUST_CON, sustains++);
	ADD_POWER1("sustain CHR",         1, OF_SUST_CHR);

	for (i = 2; i <= sustains; i++)
	{
		p += i;
		LOG_PRINT1("Adding power for multiple sustains, total is %d\n", p);
		if (i == 5)
		{
			p += SUST_POWER;
			LOG_PRINT1("Adding power for full set of sustains, total is %d\n", p);
		}
	}

	ADD_POWER2("acid immunity",      38, OF_IM_ACID, immunities++);
	ADD_POWER2("elec immunity",      35, OF_IM_ELEC, immunities++);
	ADD_POWER2("fire immunity",      40, OF_IM_FIRE, immunities++);
	ADD_POWER2("cold immunity",      37, OF_IM_COLD, immunities++);

	for (i = 2; i <= immunities; i++)
	{
		p += IMMUNITY_POWER;
		LOG_PRINT1("Adding power for multiple immunities, total is %d\n", p);
		if (i >= INHIBIT_IMMUNITIES)
		{
			p += INHIBIT_POWER;             /* inhibit */
			LOG_PRINT("INHIBITING: Too many immunities\n");
		}
	}

	ADD_POWER2("free action",           14, OF_FREE_ACT,    misc++);
	ADD_POWER2("hold life",             12, OF_HOLD_LIFE,   misc++);
	ADD_POWER1("feather fall",           1, OF_FEATHER);
	ADD_POWER2("permanent light",        3, OF_LIGHT,       misc++);
	ADD_POWER2("see invisible",         10, OF_SEE_INVIS,   misc++);
	ADD_POWER2("telepathy",             70, OF_TELEPATHY,   misc++);
	ADD_POWER2("slow digestion",         2, OF_SLOW_DIGEST, misc++);
	ADD_POWER2("resist acid",            5, OF_RES_ACID,    lowres++);
	ADD_POWER2("resist elec",            6, OF_RES_ELEC,    lowres++);
	ADD_POWER2("resist fire",            6, OF_RES_FIRE,    lowres++);
	ADD_POWER2("resist cold",            6, OF_RES_COLD,    lowres++);
	ADD_POWER2("resist poison",         28, OF_RES_POIS,    highres++);
	ADD_POWER2("resist fear",            6, OF_RES_FEAR,    highres++);
	ADD_POWER2("resist light",           6, OF_RES_LIGHT,   highres++);
	ADD_POWER2("resist dark",           16, OF_RES_DARK,    highres++);
	ADD_POWER2("resist blindness",      16, OF_RES_BLIND,   highres++);
	ADD_POWER2("resist confusion",      24, OF_RES_CONFU,   highres++);
	ADD_POWER2("resist sound",          14, OF_RES_SOUND,   highres++);
	ADD_POWER2("resist shards",          8, OF_RES_SHARD,   highres++);
	ADD_POWER2("resist nexus",          15, OF_RES_NEXUS,   highres++);
	ADD_POWER2("resist nether",         20, OF_RES_NETHR,   highres++);
	ADD_POWER2("resist chaos",          20, OF_RES_CHAOS,   highres++);
	ADD_POWER2("resist disenchantment", 20, OF_RES_DISEN,   highres++);
	ADD_POWER2("regeneration",           9, OF_REGEN,       misc++);
	ADD_POWER1("blessed",                1, OF_BLESSED);
	ADD_POWER1("no fuel",                5, OF_NO_FUEL);

	for (i = 2; i <= misc; i++)
	{
		p += i;
		LOG_PRINT1("Adding power for multiple misc abilities, total is %d\n", p);
	}

	for (i = 2; i <= lowres; i++)
	{
		p += i;
		LOG_PRINT1("Adding power for multiple low resists, total is %d\n", p);
		if (i == 4)
		{
			p += RBASE_POWER;
			LOG_PRINT1("Adding power for full rbase set, total is %d\n", p);
		}
	}

	for (i = 2; i <= highres; i++)
	{
		p += (i * 2);
		LOG_PRINT1("Adding power for multiple high resists, total is %d\n", p);
	}

	/* Note: the following code is irrelevant until curses are reworked */
	if (of_has(flags, OF_TELEPORT))
	{
		p -= 1;
		LOG_PRINT1("Subtracting power for teleportation, total is %d\n", p);
	}
	if (of_has(flags, OF_DRAIN_EXP))
	{
		p -= 1;
		LOG_PRINT1("Subtracting power for drain experience, total is %d\n", p);
	}
	if (of_has(flags, OF_AGGRAVATE))
	{
		p -= 1;
		LOG_PRINT1("Subtracting power for aggravation, total is %d\n", p);
	}
	if (of_has(flags, OF_LIGHT_CURSE))
	{
		p -= 1;
		LOG_PRINT1("Subtracting power for light curse, total is %d\n", p);
	}
	if (of_has(flags, OF_HEAVY_CURSE))
	{
		p -= 1;
		LOG_PRINT1("Subtracting power for heavy curse, total is %d\n", p);
	}

	/*	if (of_has(flags, OF_PERMA_CURSE)) p -= 40; */

	/* add power for effect */
	if (known || object_effect_is_known(o_ptr))
	{
		if (o_ptr->name1 && a_info[o_ptr->name1].effect)
		{
			p += effect_power(a_info[o_ptr->name1].effect);
			LOG_PRINT1("Adding power for artifact activation, total is %d\n", p);
		}
		else
		{
			p += effect_power(k_info[o_ptr->k_idx].effect);
			LOG_PRINT1("Adding power for item activation, total is %d\n", p);
		}
	}

	/* add tiny amounts for ignore flags */
	if (of_has(flags, OF_IGNORE_ACID)) p++;
	if (of_has(flags, OF_IGNORE_FIRE)) p++;
	if (of_has(flags, OF_IGNORE_COLD)) p++;
	if (of_has(flags, OF_IGNORE_ELEC)) p++;

	LOG_PRINT1("After ignore flags, FINAL POWER IS %d\n", p);

	return (p);
}