/**
* Applying magic to an object, which includes creating ego-items, and applying
* random bonuses,
*
* The `good` argument forces the item to be at least `good`, and the `great`
* argument does likewise. Setting `allow_artifacts` to TRUE allows artifacts
* to be created here.
*
* If `good` or `great` are not set, then the `lev` argument controls the
* quality of item.
*
* Returns 0 if a normal object, 1 if a good object, 2 if an ego item, 3 if an
* artifact.
*/
s16b apply_magic(object_type *o_ptr, int lev, bool allow_artifacts,
bool good, bool great, bool extra_roll)
{
int i;
s16b power = 0;
/* Chance of being `good` and `great` */
/* This has changed over the years:
* 3.0.0: good = MIN(75, lev + 10); great = MIN(20, lev / 2);
* 3.3.0: good = (lev + 2) * 3; great = MIN(lev / 4 + lev, 50);
* 3.4.0: good = (2 * lev) + 5
* 3.4 was in between 3.0 and 3.3, 3.5 attempts to keep the same
* area under the curve as 3.4, but make the generation chances
* flatter. This depresses good items overall since more items
* are created deeper.
* This change is meant to go in conjunction with the changes
* to ego item allocation levels. (-fizzix)
*/
int good_chance = (33 + lev);
int great_chance = 30;
/* Roll for "good" */
if (good || (randint0(100) < good_chance)) {
power = 1;
/* Roll for "great" */
if (great || (randint0(100) < great_chance))
power = 2;
}
/* Roll for artifact creation */
if (allow_artifacts) {
int rolls = 0;
/* Get one roll if excellent */
if (power >= 2) rolls = 1;
/* Get two rolls if forced great */
if (great) rolls = 2;
/* Give some extra rolls for uniques and acq scrolls */
if (extra_roll) rolls += 2;
/* Roll for artifacts if allowed */
for (i = 0; i < rolls; i++)
if (make_artifact(o_ptr)) return 3;
}
/* Try to make an ego item */
if (power == 2)
make_ego_item(o_ptr, lev);
/* Apply magic */
switch (o_ptr->tval)
{
case TV_DIGGING:
case TV_HAFTED:
case TV_POLEARM:
case TV_SWORD:
case TV_BOW:
case TV_SHOT:
case TV_ARROW:
case TV_BOLT:
apply_magic_weapon(o_ptr, lev, power);
break;
case TV_DRAG_ARMOR:
case TV_HARD_ARMOR:
case TV_SOFT_ARMOR:
case TV_SHIELD:
case TV_HELM:
case TV_CROWN:
case TV_CLOAK:
case TV_GLOVES:
case TV_BOOTS:
apply_magic_armour(o_ptr, lev, power);
break;
case TV_RING:
if (o_ptr->sval == SV_RING_SPEED) {
/* Super-charge the ring */
while (one_in_(2))
o_ptr->pval[which_pval(o_ptr, OF_SPEED)]++;
}
break;
case TV_CHEST:
/* Hack -- skip ruined chests */
if (o_ptr->kind->level <= 0) break;
/* Hack -- pick a "difficulty" */
o_ptr->pval[DEFAULT_PVAL] = randint1(o_ptr->kind->level);
/* Never exceed "difficulty" of 55 to 59 */
if (o_ptr->pval[DEFAULT_PVAL] > 55)
o_ptr->pval[DEFAULT_PVAL] = (s16b)(55 + randint0(5));
break;
}
/* Apply minima from ego items if necessary */
ego_apply_minima(o_ptr);
return power;
}
/**
* Applying magic to an object, which includes creating ego-items, and applying
* random bonuses,
*
* The `good` argument forces the item to be at least `good`, and the `great`
* argument does likewise. Setting `allow_artifacts` to true allows artifacts
* to be created here.
*
* If `good` or `great` are not set, then the `lev` argument controls the
* quality of item.
*
* Returns 0 if a normal object, 1 if a good object, 2 if an ego item, 3 if an
* artifact.
*/
int apply_magic(struct object *obj, int lev, bool allow_artifacts, bool good,
bool great, bool extra_roll)
{
int i;
s16b power = 0;
/* Chance of being `good` and `great` */
/* This has changed over the years:
* 3.0.0: good = MIN(75, lev + 10); great = MIN(20, lev / 2);
* 3.3.0: good = (lev + 2) * 3; great = MIN(lev / 4 + lev, 50);
* 3.4.0: good = (2 * lev) + 5
* 3.4 was in between 3.0 and 3.3, 3.5 attempts to keep the same
* area under the curve as 3.4, but make the generation chances
* flatter. This depresses good items overall since more items
* are created deeper.
* This change is meant to go in conjunction with the changes
* to ego item allocation levels. (-fizzix)
*/
int good_chance = (33 + lev);
int great_chance = 30;
/* Roll for "good" */
if (good || (randint0(100) < good_chance)) {
power = 1;
/* Roll for "great" */
if (great || (randint0(100) < great_chance))
power = 2;
}
/* Roll for artifact creation */
if (allow_artifacts) {
int rolls = 0;
/* Get one roll if excellent */
if (power >= 2) rolls = 1;
/* Get two rolls if forced great */
if (great) rolls = 2;
/* Give some extra rolls for uniques and acq scrolls */
if (extra_roll) rolls += 2;
/* Roll for artifacts if allowed */
for (i = 0; i < rolls; i++)
if (make_artifact(obj)) return 3;
}
/* Try to make an ego item */
if (power == 2)
make_ego_item(obj, lev);
/* Apply magic */
if (tval_is_weapon(obj)) {
apply_magic_weapon(obj, lev, power);
} else if (tval_is_armor(obj)) {
apply_magic_armour(obj, lev, power);
} else if (tval_is_ring(obj)) {
if (obj->sval == lookup_sval(obj->tval, "Speed")) {
/* Super-charge the ring */
while (one_in_(2))
obj->modifiers[OBJ_MOD_SPEED]++;
}
} else if (tval_is_chest(obj)) {
/* Hack -- skip ruined chests */
if (obj->kind->level > 0) {
/* Hack -- pick a "difficulty" */
obj->pval = randint1(obj->kind->level);
/* Never exceed "difficulty" of 55 to 59 */
if (obj->pval > 55)
obj->pval = (s16b)(55 + randint0(5));
}
}
/* Apply minima from ego items if necessary */
ego_apply_minima(obj);
return power;
}
/**
* Applying magic to an object, which includes creating ego-items, and applying
* random bonuses,
*
* The `good` argument forces the item to be at least `good`, and the `great`
* argument does likewise. Setting `allow_artifacts` to TRUE allows artifacts
* to be created here.
*
* If `good` or `great` are not set, then the `lev` argument controls the
* quality of item.
*
* Returns 0 if a normal object, 1 if a good object, 2 if an ego item, 3 if an
* artifact.
*/
s16b apply_magic(object_type *o_ptr, int lev, bool allow_artifacts,
bool good, bool great)
{
int i;
s16b power = 0;
/* Chance of being `good` and `great` */
/* This has changed over the years:
* 3.0.0: good = MIN(75, lev + 10); great = MIN(20, lev / 2);
* 3.3.0: good = (lev + 2) * 3; great = MIN(lev / 4 + lev, 50);
* The calculations below are somewhere between the two. -AS-
*/
int good_chance = (2 * lev) + 5;
int great_chance = MIN(40, (lev * 3) / 4);
/* Roll for "good" */
if (good || (randint0(100) < good_chance)) {
power = 1;
/* Roll for "great" */
if (great || (randint0(100) < great_chance))
power = 2;
}
/* Roll for artifact creation */
if (allow_artifacts) {
int rolls = 0;
/* Get one roll if excellent */
if (power >= 2) rolls = 1;
/* Get four rolls if forced great */
if (great) rolls = 4;
/* Roll for artifacts if allowed */
for (i = 0; i < rolls; i++)
if (make_artifact(o_ptr)) return 3;
}
/* Try to make an ego item */
if (power == 2)
make_ego_item(o_ptr, lev);
/* Apply magic */
switch (o_ptr->tval)
{
case TV_DIGGING:
case TV_HAFTED:
case TV_POLEARM:
case TV_SWORD:
case TV_BOW:
case TV_SHOT:
case TV_ARROW:
case TV_BOLT:
apply_magic_weapon(o_ptr, lev, power);
break;
case TV_DRAG_ARMOR:
case TV_HARD_ARMOR:
case TV_SOFT_ARMOR:
case TV_SHIELD:
case TV_HELM:
case TV_CROWN:
case TV_CLOAK:
case TV_GLOVES:
case TV_BOOTS:
apply_magic_armour(o_ptr, lev, power);
break;
case TV_RING:
if (o_ptr->sval == SV_RING_SPEED) {
/* Super-charge the ring */
while (one_in_(2))
o_ptr->pval[which_pval(o_ptr, OF_SPEED)]++;
}
break;
case TV_CHEST:
/* Hack -- skip ruined chests */
if (o_ptr->kind->level <= 0) break;
/* Hack -- pick a "difficulty" */
o_ptr->pval[DEFAULT_PVAL] = randint1(o_ptr->kind->level);
/* Never exceed "difficulty" of 55 to 59 */
if (o_ptr->pval[DEFAULT_PVAL] > 55)
o_ptr->pval[DEFAULT_PVAL] = (s16b)(55 + randint0(5));
break;
}
/* Apply minima from ego items if necessary */
ego_apply_minima(o_ptr);
return power;
}
