server/src/items.c

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C
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#include <platform.h>
#include <kernel/config.h>
#include "items.h"
#include "study.h"
#include "move.h"
#include "magic.h"
#include <kernel/curse.h>
#include <kernel/building.h>
#include <kernel/faction.h>
#include <kernel/item.h>
#include <kernel/messages.h>
#include <kernel/order.h>
#include <kernel/plane.h>
#include <kernel/pool.h>
#include <kernel/region.h>
#include <kernel/ship.h>
#include <kernel/spell.h>
#include <kernel/unit.h>
#include <items/demonseye.h>
#include <util/attrib.h>
#include <util/parser.h>
#include <util/rand.h>
#include <assert.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 (init_order(u->thisorder) == 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->value += amount * 30;
if (teach->value > MAXGAIN * 30) {
teach->value = MAXGAIN * 30;
}
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)
{
curse *c;
float effect;
ship *sh = u->ship;
if (!sh) {
cmistake(u, ord, 20, MSG_MOVE);
return -1;
}
effect = SPEEDSAIL_EFFECT;
c =
create_curse(u, &sh->attribs, ct_find("shipspeedup"), 20, INT_MAX, effect,
0);
c_setflag(c, CURSE_NOAGE);
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 = NULL;
int i;
if (rt_crystal == NULL) {
rt_crystal = rt_find("antimagic");
assert(rt_crystal != NULL);
}
for (i = 0; i != amount; ++i) {
int effect, duration = 2;
float force;
spell *sp = find_spell("antimagiczone");
attrib **ap = &r->attribs;
unused_arg(ord);
assert(sp);
/* Reduziert die St<53>rke jedes Spruchs um effect */
effect = 5;
/* H<>lt Spr<70>che bis zu einem summierten Gesamtlevel von power aus.
* Jeder Zauber reduziert die 'Lebenskraft' (vigour) der Antimagiezone
* um seine Stufe */
force = (float)effect * 20; /* Stufe 5 =~ 100 */
/* Regionszauber aufl<66>sen */
while (*ap && force > 0) {
curse *c;
attrib *a = *ap;
if (!fval(a->type, ATF_CURSE)) {
do {
ap = &(*ap)->next;
} while (*ap && a->type == (*ap)->type);
continue;
}
c = (curse *)a->data.v;
/* Immunit<69>t pr<70>fen */
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) {
create_curse(u, &r->attribs, ct_find("antimagiczone"), (float)force, duration,
(float)effect, 0);
}
}
use_pooled(u, rt_crystal, GET_DEFAULT, amount);
ADDMSG(&u->faction->msgs, msg_message("use_antimagiccrystal",
"unit region", u, r));
return 0;
}
static int
use_instantartsculpture(struct unit *u, const struct item_type *itype,
int amount, struct order *ord)
{
building *b;
if (u->region->land == NULL) {
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "error_onlandonly", ""));
return -1;
}
b = new_building(bt_find("artsculpture"), u->region, u->faction->locale);
b->size = 100;
ADDMSG(&u->region->msgs, msg_message("artsculpture_create", "unit region",
u, u->region));
use_pooled(u, itype->rtype, GET_DEFAULT, 1);
return 0;
}
static int
use_instantartacademy(struct unit *u, const struct item_type *itype,
int amount, struct order *ord)
{
building *b;
if (u->region->land == NULL) {
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "error_onlandonly", ""));
return -1;
}
b = new_building(bt_find("artacademy"), u->region, u->faction->locale);
b->size = 100;
ADDMSG(&u->region->msgs, msg_message("artacademy_create", "unit region", u,
u->region));
use_pooled(u, itype->rtype, GET_DEFAULT, 1);
return 0;
}
#define BAGPIPEFRACTION dice_rand("2d4+2")
#define BAGPIPEDURATION dice_rand("2d10+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_find("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_find("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",
"unit region command", u, u->region, ord));
use_pooled(u, itype->rtype, GET_DEFAULT, 1);
return 0;
}
void register_itemfunctions(void)
{
register_demonseye();
register_item_use(use_antimagiccrystal, "use_antimagiccrystal");
register_item_use(use_instantartsculpture, "use_instantartsculpture");
register_item_use(use_studypotion, "use_studypotion");
register_item_use(use_speedsail, "use_speedsail");
register_item_use(use_instantartacademy, "use_instantartacademy");
register_item_use(use_bagpipeoffear, "use_bagpipeoffear");
register_item_use(use_aurapotion50, "use_aurapotion50");
}