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server/src/items.c

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#ifdef _MSC_VER
#include <platform.h>
#endif
#include "items.h"
#include "alchemy.h"
#include "skill.h"
#include "direction.h"
#include "study.h"
#include "economy.h"
#include "magic.h"
#include <spells/shipcurse.h>
#include <spells/unitcurse.h>
#include <spells/regioncurse.h>
#include <kernel/curse.h>
#include <kernel/config.h>
#include <kernel/faction.h>
#include <kernel/item.h>
#include <kernel/messages.h>
#include <kernel/order.h>
#include <kernel/pool.h>
#include <kernel/race.h>
#include <kernel/region.h>
#include <kernel/ship.h>
#include <kernel/spell.h>
#include <kernel/skills.h>
#include <kernel/unit.h>
/* triggers includes */
#include <triggers/changerace.h>
#include <triggers/timeout.h>
#include <kernel/attrib.h>
#include <kernel/event.h>
#include <util/keyword.h>
#include <util/macros.h>
#include <util/parser.h>
#include <util/rand.h>
#include <util/rng.h>
#include <assert.h>
#include <stddef.h>
#include <limits.h>
/* BEGIN studypotion */
#define MAXGAIN 15
static int
use_studypotion(struct unit *u, const struct item_type *itype, int amount,
struct order *ord)
{
if (u->thisorder && init_order(u->thisorder, u->faction->locale) == K_STUDY) {
char token[128];
skill_t sk = NOSKILL;
skill *sv = 0;
const char * s = gettoken(token, sizeof(token));
if (s) {
sk = get_skill(s, u->faction->locale);
sv = unit_skill(u, sk);
}
if (sv && sv->level > 2) {
/* TODO: message */
}
else if (sk != NOSKILL && study_cost(u, sk) > 0) {
/* TODO: message */
}
else {
attrib *a = a_find(u->attribs, &at_learning);
teaching_info *teach;
if (a == NULL) {
a = a_add(&u->attribs, a_new(&at_learning));
}
teach = (teaching_info *)a->data.v;
if (amount > MAXGAIN) {
amount = MAXGAIN;
}
teach->days += amount * STUDYDAYS;
if (teach->days > MAXGAIN * STUDYDAYS) {
teach->days = MAXGAIN * STUDYDAYS;
}
i_change(&u->items, itype, -amount);
return 0;
}
}
return EUNUSABLE;
}
/* END studypotion */
/* BEGIN speedsail */
#define SPEEDSAIL_EFFECT 1
static int
use_speedsail(struct unit *u, const struct item_type *itype, int amount,
struct order *ord)
{
double effect;
ship *sh = u->ship;
if (!sh) {
cmistake(u, ord, 20, MSG_MOVE);
return -1;
}
if (sh->number > 1) {
cmistake(u, ord, 325, MSG_MAGIC);
return -1;
}
effect = SPEEDSAIL_EFFECT;
create_curse(u, &sh->attribs, &ct_shipspeedup, 20, INT_MAX, effect, 0);
ADDMSG(&u->faction->msgs, msg_message("use_speedsail", "unit speed", u,
SPEEDSAIL_EFFECT));
use_pooled(u, itype->rtype, GET_DEFAULT, 1);
return 0;
}
/* END speedsail */
/* ------------------------------------------------------------- */
/* Kann auch von Nichtmagiern benutzt werden, erzeugt eine
* Antimagiezone, die zwei Runden bestehen bleibt */
static int
use_antimagiccrystal(unit * u, const struct item_type *itype, int amount,
struct order *ord)
{
region *r = u->region;
const resource_type *rt_crystal;
int i;
rt_crystal = rt_find("antimagic");
assert(rt_crystal != NULL);
for (i = 0; i != amount; ++i) {
int effect;
double force;
spell *sp = find_spell("antimagiczone");
attrib **ap = &r->attribs;
UNUSED_ARG(ord);
assert(sp);
/* Reduziert die Staerke jedes Spruchs um effect */
effect = 5;
/* Haelt Sprueche bis zu einem summierten Gesamtlevel von power aus.
* Jeder Zauber reduziert die 'Lebenskraft' (vigour) der Antimagiezone
* um seine Stufe */
force = effect * 20.0; /* Stufe 5 =~ 100 */
/* Regionszauber aufloesen */
while (*ap && force > 0) {
curse *c;
attrib *a = *ap;
if (a->type != &at_curse) {
do {
ap = &(*ap)->next;
} while (*ap && a->type == (*ap)->type);
continue;
}
c = (curse *)a->data.v;
/* Immunitaet pruefen */
if (c_flags(c) & CURSE_IMMUNE) {
do {
ap = &(*ap)->next;
} while (*ap && a->type == (*ap)->type);
continue;
}
force = destr_curse(c, effect, force);
if (c->vigour <= 0) {
a_remove(&r->attribs, a);
}
if (*ap)
ap = &(*ap)->next;
}
if (force > 0) {
int duration = 2;
create_curse(u, &r->attribs, &ct_antimagiczone, force, duration,
effect, 0);
}
}
use_pooled(u, rt_crystal, GET_DEFAULT, amount);
ADDMSG(&u->region->msgs, msg_message("use_antimagiccrystal", "unit", u));
return 0;
}
#define BAGPIPEFRACTION (dice(2,4)+2)
#define BAGPIPEDURATION (dice(2,10)+4)
static int
use_bagpipeoffear(struct unit *u, const struct item_type *itype,
int amount, struct order *ord)
{
int money;
if (get_curse(u->region->attribs, &ct_depression)) {
cmistake(u, ord, 58, MSG_MAGIC);
return -1;
}
money = entertainmoney(u->region) / BAGPIPEFRACTION;
change_money(u, money);
rsetmoney(u->region, rmoney(u->region) - money);
create_curse(u, &u->region->attribs, &ct_depression,
20, BAGPIPEDURATION, 0.0, 0);
ADDMSG(&u->faction->msgs, msg_message("bagpipeoffear_faction",
"unit region command money", u, u->region, ord, money));
ADDMSG(&u->region->msgs, msg_message("bagpipeoffear_region",
"unit money", u, money));
return 0;
}
static int
use_aurapotion50(struct unit *u, const struct item_type *itype,
int amount, struct order *ord)
{
if (!is_mage(u)) {
cmistake(u, ord, 214, MSG_MAGIC);
return -1;
}
change_spellpoints(u, 50);
ADDMSG(&u->faction->msgs, msg_message("aurapotion50_effect",
"unit region command", u, u->region, ord));
use_pooled(u, itype->rtype, GET_DEFAULT, 1);
return 0;
}
static int
use_birthdayamulet(unit * u, const struct item_type *itype, int amount,
struct order *ord)
{
direction_t d;
message *msg = msg_message("meow", "");
UNUSED_ARG(ord);
UNUSED_ARG(amount);
UNUSED_ARG(itype);
add_message(&u->region->msgs, msg);
for (d = 0; d < MAXDIRECTIONS; d++) {
region *tr = rconnect(u->region, d);
if (tr)
add_message(&tr->msgs, msg);
}
msg_release(msg);
return 0;
}
static int use_foolpotion(unit *u, const item_type *itype, int amount,
struct order *ord)
{
int targetno = read_unitid(u->faction, u->region);
unit *target = findunit(targetno);
if (target == NULL || u->region != target->region) {
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "feedback_unit_not_found",
""));
return ECUSTOM;
}
if (effskill(u, SK_STEALTH, NULL) <= effskill(target, SK_PERCEPTION, NULL)) {
cmistake(u, ord, 64, MSG_EVENT);
return ECUSTOM;
}
ADDMSG(&u->faction->msgs, msg_message("givedumb",
"unit recipient amount", u, target, amount));
change_effect(target, itype, amount);
use_pooled(u, itype->rtype, GET_DEFAULT, amount);
return 0;
}
static int
use_bloodpotion(struct unit *u, const struct item_type *itype, int amount,
struct order *ord)
{
if (u->number == 0 || u_race(u) == get_race(RC_DAEMON)) {
change_effect(u, itype, 100 * amount);
}
else {
const race *rcfailure = rc_find("smurf");
if (!rcfailure) {
rcfailure = rc_find("toad");
}
if (rcfailure) {
trigger *trestore = trigger_changerace(u, u_race(u), u->irace);
if (trestore) {
int duration = 2 + rng_int() % 8;
add_trigger(&u->attribs, "timer", trigger_timeout(duration,
trestore));
u->irace = NULL;
u_setrace(u, rcfailure);
}
}
}
use_pooled(u, itype->rtype, GET_SLACK | GET_RESERVE | GET_POOLED_SLACK,
amount);
ADDMSG(&u->faction->msgs, msg_message("use_item",
"unit amount item", u, amount, itype->rtype));
return 0;
}
/* ------------------------------------------------------------- */
/* Kann auch von Nichtmagier benutzt werden, modifiziert Taktik fuer diese
* Runde um -1 - 4 Punkte. */
static int
use_tacticcrystal(unit * u, const struct item_type *itype, int amount,
struct order *ord)
{
int i;
for (i = 0; i != amount; ++i) {
int duration = 1; /* wirkt nur in dieser Runde */
curse *c;
float effect;
float power = 5; /* Widerstand gegen Antimagiesprueche, ist in diesem
Fall egal, da der curse fuer den Kampf gelten soll,
der vor den Antimagiezaubern passiert */
effect = (float)(rng_int() % 6 - 1);
c = create_curse(u, &u->attribs, &ct_skillmod, power,
duration, effect, u->number);
c->data.i = SK_TACTICS;
UNUSED_ARG(ord);
}
use_pooled(u, itype->rtype, GET_DEFAULT, amount);
ADDMSG(&u->faction->msgs, msg_message("use_tacticcrystal",
"unit region", u, u->region));
return 0;
}
static int
use_mistletoe(struct unit *user, const struct item_type *itype, int amount,
struct order *ord)
{
int mtoes = get_pooled(user, itype->rtype,
GET_SLACK | GET_RESERVE | GET_POOLED_SLACK, amount);
if (mtoes < amount) {
amount = mtoes;
}
if (amount > 0) {
use_pooled(user, itype->rtype,
GET_SLACK | GET_RESERVE | GET_POOLED_SLACK, amount);
change_effect(user, itype, amount);
ADDMSG(&user->faction->msgs,
msg_message("use_item", "unit amount item", user, amount, itype->rtype));
}
return 0;
}
static int use_warmthpotion(unit *u, const item_type *itype,
int amount, struct order *ord)
{
if (u->faction->race == get_race(RC_INSECT)) {
u->flags |= UFL_WARMTH;
}
else {
/* nur fuer insekten: */
cmistake(u, ord, 163, MSG_EVENT);
return ECUSTOM;
}
use_pooled(u, itype->rtype, GET_DEFAULT, amount);
ADDMSG(&u->faction->msgs, msg_message("use_item",
"unit amount item", u, amount, itype->rtype));
return 0;
}
static int potion_water_of_life(unit * u, region *r, int amount) {
static int config;
static int tree_type, tree_count;
int wood = 0;
if (config_changed(&config)) {
tree_type = config_get_int("rules.magic.wol_type", 1);
tree_count = config_get_int("rules.magic.wol_effect", 10);
}
/* mallorn is required to make mallorn forests, wood for regular ones */
if (fval(r, RF_MALLORN)) {
wood = use_pooled(u, rt_find("mallorn"), GET_DEFAULT, tree_count * amount);
}
else {
wood = use_pooled(u, rt_find("log"), GET_DEFAULT, tree_count * amount);
}
if (r->land == 0)
wood = 0;
if (wood < tree_count * amount) {
int x = wood / tree_count;
if (wood % tree_count)
++x;
if (x < amount)
amount = x;
}
rsettrees(r, tree_type, rtrees(r, tree_type) + wood);
ADDMSG(&u->faction->msgs, msg_message("growtree_effect",
"mage amount", u, wood));
return amount;
}
static int use_water_of_life(unit *u, const item_type *itype,
int amount, struct order *ord)
{
return potion_water_of_life(u, u->region, amount);
}
static int heal(unit * user, int effect)
{
int req = unit_max_hp(user) * user->number - user->hp;
if (req > 0) {
if (req > effect) req = effect;
effect -= req;
user->hp += req;
}
return effect;
}
static int potion_healing(struct unit *user, int amount)
{
int effect = amount * 400;
unit *u = user->region->units;
effect = heal(u, effect);
while (effect > 0 && u != NULL) {
if (u->faction == user->faction) {
effect = heal(u, effect);
}
u = u->next;
}
return amount;
}
static int use_healing_potion(unit *u, const item_type *itype,
int amount, struct order *ord)
{
ADDMSG(&u->faction->msgs, msg_message("use_item",
"unit amount item", u, amount, itype->rtype));
return potion_healing(u, amount);
}
static int potion_ointment(unit * u, int amount) {
int effect = amount * 400;
effect = heal(u, effect);
return amount;
}
static int use_ointment(unit *u, const item_type *itype,
int amount, struct order *ord)
{
ADDMSG(&u->faction->msgs, msg_message("use_item",
"unit amount item", u, amount, itype->rtype));
return potion_ointment(u, amount);
}
static int potion_power(unit *u, int amount) {
int hp = 10 * amount;
if (hp > u->number) {
hp = u->number;
amount = (hp + 9) % 10;
}
u->hp += hp * unit_max_hp(u) * 4;
return amount;
}
static int use_power_elixir(unit *u, const item_type *itype,
int amount, struct order *ord)
{
ADDMSG(&u->faction->msgs, msg_message("use_item",
"unit amount item", u, amount, itype->rtype));
return potion_power(u, amount);
}
void register_itemfunctions(void)
{
/* have tests: */
register_item_use(use_water_of_life, "use_lifepotion");
register_item_use(use_mistletoe, "use_mistletoe");
register_item_use(use_tacticcrystal, "use_dreameye");
register_item_use(use_studypotion, "use_studypotion");
register_item_use(use_antimagiccrystal, "use_antimagic");
register_item_use(use_speedsail, "use_speedsail");
register_item_use(use_bagpipeoffear, "use_bagpipeoffear");
register_item_use(use_aurapotion50, "use_aurapotion50");
register_item_use(use_birthdayamulet, "use_aoc");
register_item_use(use_foolpotion, "use_p7");
register_item_use(use_bloodpotion, "use_peasantblood");
register_item_use(use_ointment, "use_ointment");
register_item_use(use_healing_potion, "use_healing");
register_item_use(use_power_elixir, "use_p13");
register_item_use(use_warmthpotion, "use_nestwarmth");
}
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