/** * Split off 'amt' items from 'src' and return. * * Where object_copy_amt() makes `amt` new objects, this function leaves the * total number unchanged; otherwise the two functions are similar. * * This function should only be used when amt < src->number */ struct object *object_split(struct object *src, int amt) { struct object *dest = object_new(), *dest_known; /* Get a copy of the object */ object_copy(dest, src); /* Prepare a new known object if necessary */ if (src->known) { dest_known = object_new(); object_copy(dest_known, src->known); dest->known = dest_known; } /* Check legality */ assert(src->number > amt); /* Distribute charges of wands, staves, or rods */ distribute_charges(src, dest, amt); if (src->known) distribute_charges(src->known, dest->known, amt); /* Modify quantity */ dest->number = amt; src->number -= amt; if (src->note) dest->note = src->note; if (src->known) { dest->known->number = amt; src->known->number -= amt; dest->known->note = src->known->note; } /* Remove any index */ if (dest->known) dest->known->oidx = 0; dest->oidx = 0; return dest; }
/** * Split off 'amt' items from 'src' and return. * * Where object_copy_amt() makes `amt` new objects, this function leaves the * total number unchanged; otherwise the two functions are similar. * * This function should only be used when amt < src->number */ struct object *object_split(struct object *src, int amt) { struct object *dest = object_new(); /* Get a copy of the object */ object_copy(dest, src); /* Check legality */ assert(src->number > amt); /* Distribute charges of wands, staves, or rods */ distribute_charges(src, dest, amt); /* Modify quantity */ dest->number = amt; src->number -= amt; if (src->note) dest->note = src->note; return dest; }
/* * Throw an object from the pack or floor. * * Note: "unseen" monsters are very hard to hit. * * Should throwing a weapon do full damage? Should it allow the magic * to hit bonus of the weapon to have an effect? Should it ever cause * the item to be destroyed? Should it do any damage at all? */ void do_cmd_throw(cmd_code code, cmd_arg args[]) { int dir, item; int i, j, y, x; s16b ty, tx; int chance, tdam, tdis; int weight; object_type *o_ptr; object_type *i_ptr; object_type object_type_body; bool hit_body = FALSE; byte missile_attr; char missile_char; char o_name[80]; u32b msg_type = 0; int path_n; u16b path_g[256]; int msec = op_ptr->delay_factor * op_ptr->delay_factor; /* Get item to throw and direction in which to throw it. */ item = args[0].item; dir = args[1].direction; /* Make sure the player isn't throwing wielded items */ if (item >= INVEN_WIELD && item < QUIVER_START) { msg_print("You have cannot throw wielded items."); return; } /* Check the item being thrown is usable by the player. */ if (!item_is_available(item, NULL, (USE_EQUIP | USE_INVEN | USE_FLOOR))) { msg_format("That item is not within your reach."); return; } /* Get the object */ o_ptr = object_from_item_idx(item); object_notice_on_firing(o_ptr); /* Get local object */ i_ptr = &object_type_body; /* Obtain a local object */ object_copy(i_ptr, o_ptr); /* Distribute the charges of rods/wands/staves between the stacks */ distribute_charges(o_ptr, i_ptr, 1); /* Single object */ i_ptr->number = 1; /* Reduce and describe inventory */ if (item >= 0) { inven_item_increase(item, -1); inven_item_describe(item); inven_item_optimize(item); } /* Reduce and describe floor item */ else { floor_item_increase(0 - item, -1); floor_item_optimize(0 - item); } /* Description */ object_desc(o_name, sizeof(o_name), i_ptr, ODESC_FULL); /* Find the color and symbol for the object for throwing */ missile_attr = object_attr(i_ptr); missile_char = object_char(i_ptr); /* Enforce a minimum "weight" of one pound */ weight = ((i_ptr->weight > 10) ? i_ptr->weight : 10); /* Hack -- Distance -- Reward strength, penalize weight */ tdis = (adj_str_blow[p_ptr->state.stat_ind[A_STR]] + 20) * 10 / weight; /* Max distance of 10 */ if (tdis > 10) tdis = 10; /* Hack -- Base damage from thrown object */ tdam = damroll(i_ptr->dd, i_ptr->ds); if (!tdam) tdam = 1; tdam += i_ptr->to_d; /* Chance of hitting */ chance = (p_ptr->state.skills[SKILL_TO_HIT_THROW] + (p_ptr->state.to_h * BTH_PLUS_ADJ)); /* Take a turn */ p_ptr->energy_use = 100; /* Start at the player */ y = p_ptr->py; x = p_ptr->px; /* Predict the "target" location */ ty = p_ptr->py + 99 * ddy[dir]; tx = p_ptr->px + 99 * ddx[dir]; /* Check for "target request" */ if ((dir == 5) && target_okay()) { target_get(&tx, &ty); } /* Calculate the path */ path_n = project_path(path_g, tdis, p_ptr->py, p_ptr->px, ty, tx, 0); /* Hack -- Handle stuff */ handle_stuff(); /* Project along the path */ for (i = 0; i < path_n; ++i) { int ny = GRID_Y(path_g[i]); int nx = GRID_X(path_g[i]); /* Hack -- Stop before hitting walls */ if (!cave_floor_bold(ny, nx)) break; /* Advance */ x = nx; y = ny; /* Only do visuals if the player can "see" the missile */ if (player_can_see_bold(y, x)) { /* Visual effects */ print_rel(missile_char, missile_attr, y, x); move_cursor_relative(y, x); Term_fresh(); if (p_ptr->redraw) redraw_stuff(); Term_xtra(TERM_XTRA_DELAY, msec); light_spot(y, x); Term_fresh(); if (p_ptr->redraw) redraw_stuff(); } /* Delay anyway for consistency */ else { /* Pause anyway, for consistancy */ Term_xtra(TERM_XTRA_DELAY, msec); } /* Handle monster */ if (cave_m_idx[y][x] > 0) { monster_type *m_ptr = &mon_list[cave_m_idx[y][x]]; monster_race *r_ptr = &r_info[m_ptr->r_idx]; int chance2 = chance - distance(p_ptr->py, p_ptr->px, y, x); int visible = m_ptr->ml; /* Note the collision */ hit_body = TRUE; /* Did we hit it (penalize range) */ if (test_hit(chance2, r_ptr->ac, m_ptr->ml)) { const char *hit_verb = "hits"; bool fear = FALSE; const slay_t *best_s_ptr = NULL; /* Assume a default death */ cptr note_dies = " dies."; /* Some monsters get "destroyed" */ if (monster_is_unusual(r_ptr)) { /* Special note at death */ note_dies = " is destroyed."; } /* Apply special damage - brought forward to fill in hit_verb XXX XXX XXX */ improve_attack_modifier(i_ptr, m_ptr, &best_s_ptr); if (best_s_ptr != NULL) { tdam *= best_s_ptr->mult; hit_verb = best_s_ptr->range_verb; } /* Apply special damage XXX XXX XXX */ tdam = critical_shot(i_ptr->weight, i_ptr->to_h, tdam, &msg_type); /* No negative damage; change verb if no damage done */ if (tdam <= 0) { tdam = 0; hit_verb = "fail to harm"; } /* Handle unseen monster */ if (!visible) { /* Invisible monster */ msg_format("The %s finds a mark.", o_name); } /* Handle visible monster */ else { char m_name[80]; /* Get "the monster" or "it" */ monster_desc(m_name, sizeof(m_name), m_ptr, 0); /* Tell the player what happened */ if (msg_type == MSG_SHOOT_HIT) message_format(MSG_SHOOT_HIT, 0, "The %s %s %s.", o_name, hit_verb, m_name); else { if (msg_type == MSG_HIT_GOOD) { message_format(MSG_HIT_GOOD, 0, "The %s %s %s. %s", o_name, hit_verb, m_name, "It was a good hit!"); } else if (msg_type == MSG_HIT_GREAT) { message_format(MSG_HIT_GREAT, 0, "The %s %s %s. %s", o_name, hit_verb, m_name, "It was a great hit!"); } else if (msg_type == MSG_HIT_SUPERB) { message_format(MSG_HIT_SUPERB, 0, "The %s %s %s. %s", o_name, hit_verb, m_name, "It was a superb hit!"); } } /* Hack -- Track this monster race */ if (m_ptr->ml) monster_race_track(m_ptr->r_idx); /* Hack -- Track this monster */ if (m_ptr->ml) health_track(cave_m_idx[y][x]); } /* Learn the bonuses */ /* XXX Eddie This is messed up, better done for firing, */ /* should use that method [split last] instead */ /* check if inven_optimize removed what o_ptr referenced */ if (object_similar(i_ptr, o_ptr, OSTACK_PACK)) object_notice_attack_plusses(o_ptr); object_notice_attack_plusses(i_ptr); /* Complex message */ if (p_ptr->wizard) msg_format("You do %d (out of %d) damage.", tdam, m_ptr->hp); /* Hit the monster, check for death */ if (mon_take_hit(cave_m_idx[y][x], tdam, &fear, note_dies)) { /* Dead monster */ } /* No death */ else { /* Message */ message_pain(cave_m_idx[y][x], tdam); /* Take note */ if (fear && m_ptr->ml) { char m_name[80]; /* Get the monster name (or "it") */ monster_desc(m_name, sizeof(m_name), m_ptr, 0); /* Message */ message_format(MSG_FLEE, m_ptr->r_idx, "%^s flees in terror!", m_name); } } } /* Stop looking */ break; } } /* Chance of breakage (during attacks) */ j = (hit_body ? breakage_chance(i_ptr) : 0); /* Drop (or break) near that location */ drop_near(i_ptr, j, y, x, TRUE); }