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/*
+-------------------+ Christian Schlittchen <corwin@amber.kn-bremen.de>
| | Enno Rehling <enno@eressea.de>
| Eressea PBEM host | Katja Zedel <katze@felidae.kn-bremen.de>
| (c) 1998 - 2014 | Henning Peters <faroul@beyond.kn-bremen.de>
| | Ingo Wilken <Ingo.Wilken@informatik.uni-oldenburg.de>
+-------------------+ Stefan Reich <reich@halbling.de>
This program may not be used, modified or distributed
without prior permission by the authors of Eressea.
*/
#include <platform.h>
#include <kernel/config.h>
#include "give.h"
#include "economy.h"
#include "laws.h"
/* kernel includes */
#include <kernel/curse.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/race.h>
#include <kernel/region.h>
#include <kernel/ship.h>
#include <kernel/terrain.h>
#include <kernel/unit.h>
/* attributes includes */
#include <attributes/racename.h>
#include <attributes/orcification.h>
/* util includes */
#include <util/attrib.h>
#include <util/base36.h>
#include <util/event.h>
#include <util/log.h>
#include <util/parser.h>
/* libc includes */
#include <assert.h>
#include <limits.h>
#include <stdlib.h>
/* Wieviel Fremde eine Partei pro Woche aufnehmen kangiven */
#define RESERVE_DONATIONS /* shall we reserve objects given to us by other factions? */
#define RESERVE_GIVE /* reserve anything that's given from one unit to another? */
static int max_transfers(void) {
return get_param_int(global.parameters, "rules.give.max_men", 5);
}
static int GiveRestriction(void)
{
return get_param_int(global.parameters, "GiveRestriction", 0);
}
static void feedback_give_not_allowed(unit * u, order * ord)
{
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "feedback_give_forbidden",
""));
}
static bool can_give(const unit * u, const unit * u2, const item_type * itype, int mask)
{
if (u2) {
if (u->faction != u2->faction) {
int rule = rule_give();
if (itype) {
assert(mask == 0);
if (itype->rtype->ltype)
mask |= GIVE_LUXURIES;
else if (fval(itype, ITF_HERB))
mask |= GIVE_HERBS;
else
mask |= GIVE_GOODS;
}
return (rule & mask) != 0;
}
}
else {
int rule = rule_give();
return (rule & GIVE_PEASANTS) != 0;
}
return true;
}
static void
add_give(unit * u, unit * u2, int given, int received,
const resource_type * rtype, struct order *ord, int error)
{
if (error) {
cmistake(u, ord, error, MSG_COMMERCE);
}
else if (u2 == NULL) {
ADDMSG(&u->faction->msgs,
msg_message("give_peasants", "unit resource amount", u, rtype, given));
}
else if (u2->faction != u->faction) {
message *msg;
msg =
msg_message("give", "unit target resource amount", u, u2, rtype, given);
add_message(&u->faction->msgs, msg);
msg_release(msg);
msg =
msg_message("receive", "unit target resource amount", u, u2, rtype,
received);
add_message(&u2->faction->msgs, msg);
msg_release(msg);
}
}
static bool limited_give(const item_type * type)
{
/* trade only money 2:1, if at all */
return (type->rtype == get_resourcetype(R_SILVER));
}
int give_quota(const unit * src, const unit * dst, const item_type * type,
int n)
{
double divisor;
if (!limited_give(type)) {
return n;
}
if (dst && src && src->faction != dst->faction) {
divisor = get_param_flt(global.parameters, "rules.items.give_divisor", 1);
assert(divisor == 0 || divisor >= 1);
if (divisor >= 1) {
/* predictable > correct: */
int x = (int)(n / divisor);
return x;
}
}
return n;
}
int
give_item(int want, const item_type * itype, unit * src, unit * dest,
struct order *ord)
{
short error = 0;
int n, r;
assert(itype != NULL);
n = get_pooled(src, item2resource(itype), GET_SLACK | GET_POOLED_SLACK, want);
n = _min(want, n);
r = n;
if (dest && src->faction != dest->faction
&& src->faction->age < GiveRestriction()) {
if (ord != NULL) {
ADDMSG(&src->faction->msgs, msg_feedback(src, ord, "giverestriction",
"turns", GiveRestriction()));
}
return -1;
}
else if (n == 0) {
int reserve = get_reservation(src, itype);
if (reserve) {
msg_feedback(src, ord, "nogive_reserved", "resource reservation",
itype->rtype, reserve);
return -1;
}
error = 36;
}
else if (itype->flags & ITF_CURSED) {
error = 25;
}
else if (itype->give == NULL || itype->give(src, dest, itype, n, ord) != 0) {
int use = use_pooled(src, item2resource(itype), GET_SLACK, n);
if (use < n)
use +=
use_pooled(src, item2resource(itype), GET_POOLED_SLACK,
n - use);
if (dest) {
r = give_quota(src, dest, itype, n);
i_change(&dest->items, itype, r);
#ifdef RESERVE_GIVE
#ifdef RESERVE_DONATIONS
change_reservation(dest, itype, r);
#else
if (src->faction == dest->faction) {
change_reservation(dest, item2resource(itype), r);
}
#endif
#endif
#if MUSEUM_MODULE && defined(TODO)
/* TODO: use a trigger for the museum warden! */
if (a_find(dest->attribs, &at_warden)) {
warden_add_give(src, dest, itype, r);
}
#endif
handle_event(dest->attribs, "receive", src);
}
handle_event(src->attribs, "give", dest);
}
add_give(src, dest, n, r, item2resource(itype), ord, error);
if (error)
return -1;
return 0;
}
static bool can_give_men(const unit *u, order *ord, message **msg) {
if (u_race(u) == get_race(RC_SNOTLING)) {
/* snotlings may not be given to the peasants. */
if (msg) *msg = msg_error(u, ord, 307);
}
else if (unit_has_cursed_item(u)) {
if (msg) *msg = msg_error(u, ord, 78);
}
else if (has_skill(u, SK_MAGIC)) {
/* cannot give units to and from magicians */
if (msg) *msg = msg_error(u, ord, 158);
}
else if (fval(u, UFL_HUNGER)) {
/* hungry people cannot be given away */
if (msg) *msg = msg_error(u, ord, 73);
}
else if (fval(u, UFL_LOCKED) || is_cursed(u->attribs, C_SLAVE, 0)) {
if (msg) *msg = msg_error(u, ord, 74);
}
else {
return true;
}
return false;
}
message * give_men(int n, unit * u, unit * u2, struct order *ord)
{
ship *sh;
int k = 0;
int error = 0;
message * msg;
int maxt = max_transfers();
assert(u2);
if (!can_give_men(u, ord, &msg)) {
return msg;
}
if (u->faction != u2->faction && u->faction->age < GiveRestriction()) {
return msg_feedback(u, ord, "giverestriction",
"turns", GiveRestriction());
}
else if (u == u2) {
error = 10;
}
else if (u2->number && (fval(u, UFL_HERO) != fval(u2, UFL_HERO))) {
/* heroes may not be given to non-heroes and vice versa */
error = 75;
}
else if (unit_has_cursed_item(u2)) {
error = 78;
}
else if (fval(u2, UFL_LOCKED) || is_cursed(u2->attribs, C_SLAVE, 0)) {
error = 75;
}
else if (!ucontact(u2, u)) {
return msg_feedback(u, ord, "feedback_no_contact",
"target", u2);
}
else if (has_skill(u2, SK_MAGIC)) {
/* cannot give units to and from magicians */
error = 158;
}
else if (fval(u, UFL_WERE) != fval(u2, UFL_WERE)) {
/* werewolves can't be given to non-werewolves and vice-versa */
error = 312;
}
else if (u2->number != 0 && u_race(u2) != u_race(u)) {
log_debug("faction %s attempts to give %s to %s.\n", itoa36(u->faction->no), u_race(u)->_name, u_race(u2)->_name);
error = 139;
}
else if (get_racename(u2->attribs) || get_racename(u->attribs)) {
error = 139;
}
else if (u2->faction != u->faction && !rule_transfermen()) {
error = 74;
}
else {
if (n > u->number)
n = u->number;
if (u2 && n + u2->number > UNIT_MAXSIZE) {
n = UNIT_MAXSIZE - u2->number;
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "error_unit_size",
"maxsize", UNIT_MAXSIZE));
assert(n >= 0);
}
if (n == 0) {
error = 96;
}
else if (u->faction != u2->faction) {
if (maxt >= 0 && u2->faction->newbies + n > maxt) {
error = 129;
}
else if (u_race(u) != u2->faction->race) {
if (u2->faction->race != get_race(RC_HUMAN)) {
error = 120;
}
else if (count_migrants(u2->faction) + n >
count_maxmigrants(u2->faction)) {
error = 128;
}
else if (has_limited_skills(u) || has_limited_skills(u2)) {
error = 154;
}
else if (u2->number != 0) {
error = 139;
}
}
}
}
if (has_skill(u, SK_ALCHEMY) || has_skill(u2, SK_ALCHEMY)) {
k = count_skill(u2->faction, SK_ALCHEMY);
/* Falls die Zieleinheit keine Alchemisten sind, werden sie nun
* welche. */
if (!has_skill(u2, SK_ALCHEMY) && has_skill(u, SK_ALCHEMY))
k += u2->number;
/* Wenn in eine Alchemisteneinheit Personen verschoben werden */
if (has_skill(u2, SK_ALCHEMY) && !has_skill(u, SK_ALCHEMY))
k += n;
/* Wenn Parteigrenzen überschritten werden */
if (u2->faction != u->faction)
k += n;
/* wird das Alchemistenmaximum ueberschritten ? */
if (k > skill_limit(u2->faction, SK_ALCHEMY)) {
error = 156;
}
}
if (error == 0) {
if (u2->number == 0) {
set_racename(&u2->attribs, get_racename(u->attribs));
u_setrace(u2, u_race(u));
u2->irace = u->irace;
if (fval(u, UFL_HERO))
fset(u2, UFL_HERO);
else
freset(u2, UFL_HERO);
}
/* Einheiten von Schiffen können nicht NACH in von
* Nicht-alliierten bewachten Regionen ausführen */
sh = leftship(u);
if (sh) {
set_leftship(u2, sh);
}
transfermen(u, u2, n);
if (maxt >= 0 && u->faction != u2->faction) {
u2->faction->newbies += n;
}
}
if (error > 0) {
return msg_error(u, ord, error);
}
else if (u2->faction != u->faction) {
message *msg = msg_message("give_person", "unit target amount", u, u2, n);
add_message(&u2->faction->msgs, msg);
return msg;
}
return NULL;
}
message * disband_men(int n, unit * u, struct order *ord) {
message * msg;
if (!can_give_men(u, ord, &msg)) {
return msg;
}
transfermen(u, NULL, n);
#ifdef ORCIFICATION
if (u_race(u) == get_race(RC_SNOTLING) && !fval(u->region, RF_ORCIFIED)) {
attrib *a = a_find(u->region->attribs, &at_orcification);
if (!a) {
a = a_add(&u->region->attribs, a_new(&at_orcification));
}
a->data.i += n;
}
#endif
if (fval(u->region->terrain, SEA_REGION)) {
return msg_message("give_person_ocean", "unit amount", u, n);
}
return msg_message("give_person_peasants", "unit amount", u, n);
}
void give_unit(unit * u, unit * u2, order * ord)
{
int maxt = max_transfers();
assert(u);
if (!rule_transfermen() && u->faction != u2->faction) {
cmistake(u, ord, 74, MSG_COMMERCE);
return;
}
if (unit_has_cursed_item(u)) {
cmistake(u, ord, 78, MSG_COMMERCE);
return;
}
if (fval(u, UFL_HERO)) {
cmistake(u, ord, 75, MSG_COMMERCE);
return;
}
if (fval(u, UFL_LOCKED) || fval(u, UFL_HUNGER)) {
cmistake(u, ord, 74, MSG_COMMERCE);
return;
}
if (u2 == NULL) {
region *r = u->region;
message *msg;
if (fval(r->terrain, SEA_REGION)) {
msg = disband_men(u->number, u, ord);
if (msg) {
ADDMSG(&u->faction->msgs, msg);
}
else {
cmistake(u, ord, 152, MSG_COMMERCE);
}
}
else {
unit *u3;
for (u3 = r->units; u3; u3 = u3->next)
if (u3->faction == u->faction && u != u3)
break;
if (u3) {
while (u->items) {
item *iold = i_remove(&u->items, u->items);
item *inew = *i_find(&u3->items, iold->type);
if (inew == NULL)
i_add(&u3->items, iold);
else {
inew->number += iold->number;
i_free(iold);
}
}
}
msg = disband_men(u->number, u, ord);
if (msg) {
ADDMSG(&u->faction->msgs, msg);
}
else {
cmistake(u, ord, 153, MSG_COMMERCE);
}
}
return;
}
if (!alliedunit(u2, u->faction, HELP_GIVE) && ucontact(u2, u) == 0) {
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "feedback_no_contact",
"target", u2));
return;
}
if (u->number == 0) {
cmistake(u, ord, 105, MSG_COMMERCE);
return;
}
if (maxt >= 0 && u->faction != u2->faction) {
if (u2->faction->newbies + u->number > maxt) {
cmistake(u, ord, 129, MSG_COMMERCE);
return;
}
}
if (u_race(u) != u2->faction->race) {
if (u2->faction->race != get_race(RC_HUMAN)) {
cmistake(u, ord, 120, MSG_COMMERCE);
return;
}
if (count_migrants(u2->faction) + u->number >
count_maxmigrants(u2->faction)) {
cmistake(u, ord, 128, MSG_COMMERCE);
return;
}
if (has_limited_skills(u)) {
cmistake(u, ord, 154, MSG_COMMERCE);
return;
}
}
if (has_skill(u, SK_MAGIC)) {
sc_mage *mage;
if (count_skill(u2->faction, SK_MAGIC) + u->number >
skill_limit(u2->faction, SK_MAGIC)) {
cmistake(u, ord, 155, MSG_COMMERCE);
return;
}
mage = get_mage(u);
if (!mage || u2->faction->magiegebiet != mage->magietyp) {
cmistake(u, ord, 157, MSG_COMMERCE);
return;
}
}
if (has_skill(u, SK_ALCHEMY)
&& count_skill(u2->faction, SK_ALCHEMY) + u->number >
skill_limit(u2->faction, SK_ALCHEMY)) {
cmistake(u, ord, 156, MSG_COMMERCE);
return;
}
add_give(u, u2, u->number, u->number, get_resourcetype(R_PERSON), ord, 0);
u_setfaction(u, u2->faction);
u2->faction->newbies += u->number;
}
bool can_give_to(unit *u, unit *u2) {
/* Damit Tarner nicht durch die Fehlermeldung enttarnt werden können */
if (!u2) {
return false;
}
if (u2 && !alliedunit(u2, u->faction, HELP_GIVE)
&& !cansee(u->faction, u->region, u2, 0) && !ucontact(u2, u)
&& !fval(u2, UFL_TAKEALL)) {
return false;
}
return true;
}
void give_cmd(unit * u, order * ord)
{
char token[128];
region *r = u->region;
unit *u2;
const char *s;
int err, n;
const item_type *itype;
param_t p;
plane *pl;
message *msg;
keyword_t kwd;
kwd = init_order(ord);
assert(kwd == K_GIVE);
err = getunit(r, u->faction, &u2);
s = gettoken(token, sizeof(token));
n = s ? atoip(s) : 0;
p = (n > 0) ? NOPARAM : findparam(s, u->faction->locale);
/* first, do all the ones that do not require HELP_GIVE or CONTACT */
if (p == P_CONTROL) {
/* handled in give_control_cmd */
return;
}
if (err == GET_NOTFOUND || (err != GET_PEASANTS && !can_give_to(u, u2))) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "feedback_unit_not_found", ""));
return;
}
if (u == u2) {
cmistake(u, ord, 8, MSG_COMMERCE);
return;
}
msg = check_give(u, u2, ord);
if (msg) {
ADDMSG(&u->faction->msgs, msg);
return;
}
/* UFL_TAKEALL ist ein grober Hack. Generalisierung tut not, ist aber nicht
* wirklich einfach. */
pl = rplane(r);
if (pl && fval(pl, PFL_NOGIVE) && (!u2 || !fval(u2, UFL_TAKEALL))) {
cmistake(u, ord, 268, MSG_COMMERCE);
return;
}
if (u2 && u_race(u2) == get_race(RC_SPELL)) {
ADDMSG(&u->faction->msgs, msg_feedback(u, ord, "feedback_unit_not_found",
""));
return;
}
else if (u2 && !alliedunit(u2, u->faction, HELP_GIVE) && !ucontact(u2, u)) {
cmistake(u, ord, 40, MSG_COMMERCE);
return;
}
else if (p == P_HERBS) {
bool given = false;
if ((u_race(u)->ec_flags & ECF_KEEP_ITEM) && u2 != NULL) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_nogive", "race", u_race(u)));
return;
}
if (!can_give(u, u2, NULL, GIVE_HERBS)) {
feedback_give_not_allowed(u, ord);
return;
}
if (u2 && !(u_race(u2)->ec_flags & GETITEM)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_notake", "race", u_race(u2)));
return;
}
if (u->items) {
item **itmp = &u->items;
while (*itmp) {
item *itm = *itmp;
const item_type *itype = itm->type;
if (fval(itype, ITF_HERB) && itm->number > 0) {
/* give_item ändert im fall,das man alles übergibt, die
* item-liste der unit, darum continue vor pointerumsetzten */
if (give_item(itm->number, itm->type, u, u2, ord) == 0) {
given = true;
if (*itmp != itm)
continue;
continue;
}
}
itmp = &itm->next;
}
}
if (!given) {
cmistake(u, ord, 38, MSG_COMMERCE);
}
return;
}
else if (p == P_ZAUBER) {
cmistake(u, ord, 7, MSG_COMMERCE);
/* geht nimmer */
return;
}
else if (p == P_UNIT) { /* Einheiten uebergeben */
if (!(u_race(u)->ec_flags & GIVEUNIT)) {
cmistake(u, ord, 167, MSG_COMMERCE);
return;
}
give_unit(u, u2, ord);
return;
}
else if (p == P_ANY) {
const char *s;
if (!can_give(u, u2, NULL, GIVE_ALLITEMS)) {
feedback_give_not_allowed(u, ord);
return;
}
s = gettoken(token, sizeof(token));
if (!s || *s == 0) { /* GIVE ALL items that you have */
/* do these checks once, not for each item we have: */
if ((u_race(u)->ec_flags & ECF_KEEP_ITEM) && u2 != NULL) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_nogive", "race", u_race(u)));
return;
}
if (u2 && !(u_race(u2)->ec_flags & GETITEM)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_notake", "race", u_race(u2)));
return;
}
/* für alle items einmal prüfen, ob wir mehr als von diesem Typ
* reserviert ist besitzen und diesen Teil dann übergeben */
if (u->items) {
item **itmp = &u->items;
while (*itmp) {
item *itm = *itmp;
const item_type *itype = itm->type;
if (itm->number > 0
&& itm->number - get_reservation(u, itype) > 0) {
n = itm->number - get_reservation(u, itype);
if (give_item(n, itype, u, u2, ord) == 0) {
if (*itmp != itm)
continue;
}
}
itmp = &itm->next;
}
}
}
else {
if (isparam(s, u->faction->locale, P_PERSON)) {
if (!(u_race(u)->ec_flags & GIVEPERSON)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_noregroup", "race", u_race(u)));
}
else {
message * msg;
msg = u2 ? give_men(u->number, u, u2, ord) : disband_men(u->number, u, ord);
if (msg) {
ADDMSG(&u->faction->msgs, msg);
}
}
}
else if ((u_race(u)->ec_flags & ECF_KEEP_ITEM) && u2 != NULL) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_nogive", "race", u_race(u)));
}
else if (u2 && !(u_race(u2)->ec_flags & GETITEM)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_notake", "race", u_race(u2)));
}
else {
itype = finditemtype(s, u->faction->locale);
if (itype != NULL) {
item *i = *i_find(&u->items, itype);
if (i != NULL) {
if (can_give(u, u2, itype, 0)) {
n = i->number - get_reservation(u, itype);
give_item(n, itype, u, u2, ord);
}
else {
feedback_give_not_allowed(u, ord);
}
}
}
}
}
return;
}
else if (p == P_EACH) {
if (u2 == NULL) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "peasants_give_invalid", ""));
return;
}
s = gettoken(token, sizeof(token)); /* skip one ahead to get the amount. */
n = s ? atoip(s) : 0; /* n: Anzahl */
n *= u2->number;
}
s = gettoken(token, sizeof(token));
if (s == NULL) {
cmistake(u, ord, 113, MSG_COMMERCE);
return;
}
if (isparam(s, u->faction->locale, P_PERSON)) {
message * msg;
if (!(u_race(u)->ec_flags & GIVEPERSON)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_noregroup", "race", u_race(u)));
return;
}
n = _min(u->number, n);
msg = u2 ? give_men(n, u, u2, ord) : disband_men(n, u, ord);
if (msg) {
ADDMSG(&u->faction->msgs, msg);
}
return;
}
if (u2 != NULL) {
if ((u_race(u)->ec_flags & ECF_KEEP_ITEM) && u2 != NULL) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_nogive", "race", u_race(u)));
return;
}
if (!(u_race(u2)->ec_flags & GETITEM)) {
ADDMSG(&u->faction->msgs,
msg_feedback(u, ord, "race_notake", "race", u_race(u2)));
return;
}
}
itype = finditemtype(s, u->faction->locale);
if (itype != NULL) {
if (can_give(u, u2, itype, 0)) {
give_item(n, itype, u, u2, ord);
}
else {
feedback_give_not_allowed(u, ord);
}
return;
}
cmistake(u, ord, 123, MSG_COMMERCE);
}
message *check_give(const unit *u, const unit *u2, order * ord) {
if (!can_give(u, u2, NULL, GIVE_ALLITEMS)) {
return msg_feedback(u, ord, "feedback_give_forbidden", "");
}
return 0;
}
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