server/src/common/kernel/alchemy.c
Christian Schlittchen 4e076dd4ae - GUARD_DISABLES_PRODUCTION
- Bewache wirkt nur noch, wenn der Bewacher den Bewachten sieht
2002-04-21 17:22:48 +00:00

281 lines
6.9 KiB
C

/* vi: set ts=2:
*
*
* Eressea PB(E)M host Copyright (C) 1998-2000
* Christian Schlittchen (corwin@amber.kn-bremen.de)
* Katja Zedel (katze@felidae.kn-bremen.de)
* Henning Peters (faroul@beyond.kn-bremen.de)
* Enno Rehling (enno@eressea-pbem.de)
* Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de)
*
* based on:
*
* Atlantis v1.0 13 September 1993 Copyright 1993 by Russell Wallace
* Atlantis v1.7 Copyright 1996 by Alex Schröder
*
* This program may not be used, modified or distributed without
* prior permission by the authors of Eressea.
* This program may not be sold or used commercially without prior written
* permission from the authors.
*/
#include <config.h>
#include "eressea.h"
#include "alchemy.h"
#include "item.h"
#include "faction.h"
#include "message.h"
#include "build.h"
#include "magic.h"
#include "region.h"
#include "pool.h"
#include "race.h"
#include "unit.h"
#include "skill.h"
#include "movement.h"
/* util includes */
#include <rand.h>
/* libc includes */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
/* ------------------------------------------------------------- */
void
herbsearch(region * r, unit * u, int max)
{
int herbsfound;
const herb_type * whichherb;
if (eff_skill(u, SK_HERBALISM, r) == 0) {
cmistake(u, u->thisorder, 59, MSG_PRODUCE);
return;
}
if(is_guarded(r, u, GUARD_PRODUCE)) {
cmistake(u, findorder(u, u->thisorder), 70, MSG_EVENT);
return;
}
whichherb = rherbtype(r);
if (whichherb == NULL) {
cmistake(u, u->thisorder, 108, MSG_PRODUCE);
return;
}
if (max) max = min(max, rherbs(r));
else max = rherbs(r);
herbsfound = ntimespprob(eff_skill(u, SK_HERBALISM, r) * u->number,
(double)rherbs(r)/100.0L, -0.01L);
herbsfound = min(herbsfound, max);
rsetherbs(r, rherbs(r)-herbsfound);
if (herbsfound) {
produceexp(u, SK_HERBALISM, u->number);
i_change(&u->items, whichherb->itype, herbsfound);
add_message(&u->faction->msgs, new_message(u->faction,
"herbfound%u:unit%r:region%i:amount%X:herb", u, r, herbsfound,
herb2resource(whichherb)));
} else {
add_message(&u->faction->msgs, new_message(u->faction,
"researchherb_none%u:unit%r:region", u, u->region));
}
}
attrib_type at_bauernblut = {
"bauernblut", NULL, NULL, NULL, NULL, NULL
};
int
use_potion(unit * u, const item_type * itype, int amount, const char * cmd)
{
const potion_type * ptype = resource2potion(itype->rtype);
const potion_type * use = ugetpotionuse(u);
assert(ptype!=NULL);
if (use != NULL && use!=ptype) {
add_message(&u->faction->msgs,
new_message(u->faction,
"errusingpotion%u:unit%X:using%s:command",
u, use->itype->rtype, cmd));
return ECUSTOM;
}
if (ptype->use) {
int nRetval = ptype->use(u, ptype, amount, cmd);
if (nRetval) return nRetval;
} else if (ptype==oldpotiontype[P_LIFE]) {
region * r = u->region;
int holz = 0;
/* für die Aufforstung von Mallornwäldern braucht man Mallorn */
if (fval(r, RF_MALLORN)) {
holz = new_use_pooled(u, oldresourcetype[R_MALLORN],
GET_SLACK|GET_RESERVE|GET_POOLED_SLACK, 10*amount);
} else {
holz = new_use_pooled(u, oldresourcetype[R_WOOD],
GET_SLACK|GET_RESERVE|GET_POOLED_SLACK, 10*amount);
}
#if GROWING_TREES
rsettrees(r, 1, rtrees(r, 1) + holz);
#else
rsettrees(r, rtrees(r) + holz);
#endif
add_message(&u->faction->msgs, new_message(u->faction,
"growtree_effect%u:mage%i:amount", u, holz));
} else if (ptype==oldpotiontype[P_HEAL]) {
return EUNUSABLE;
} else if (ptype==oldpotiontype[P_HEILWASSER]) {
u->hp = min(unit_max_hp(u) * u->number, u->hp + 400 * amount);
} else if (ptype==oldpotiontype[P_PEOPLE]) {
region * r = u->region;
attrib * a = (attrib*)a_find(r->attribs, &at_peasantluck);
if (!a) a = a_add(&r->attribs, a_new(&at_peasantluck));
a->data.i+=amount;
} else if (ptype==oldpotiontype[P_HORSE]) {
region * r = u->region;
attrib * a = (attrib*)a_find(r->attribs, &at_horseluck);
if (!a) a = a_add(&r->attribs, a_new(&at_horseluck));
a->data.i+=amount;
} else if (ptype==oldpotiontype[P_WAHRHEIT]) {
fset(u, FL_DISBELIEVES);
amount=1;
} else if (ptype==oldpotiontype[P_MACHT]) {
/* Verfünffacht die HP von max. 10 Personen in der Einheit */
u->hp += min(u->number, 10*amount) * unit_max_hp(u) * 4;
} else {
change_effect(u, ptype, 10*amount);
}
new_use_pooled(u, ptype->itype->rtype, GET_SLACK|GET_RESERVE|GET_POOLED_SLACK, amount);
usetpotionuse(u, ptype);
ADDMSG(&u->faction->msgs, msg_message("usepotion",
"unit potion", u, ptype->itype->rtype));
return 0;
}
/*****************/
/* at_effect */
/*****************/
static void
a_initeffect(attrib *a)
{
a->data.v = calloc(sizeof(effect_data), 1);
}
static void
a_finalizeeffect(attrib * a)
{
free(a->data.v);
}
static void
a_writeeffect(const attrib *a, FILE *f)
{
effect_data * edata = (effect_data*)a->data.v;
fprintf(f, "%s %d ", resourcename(edata->type->itype->rtype, 0), edata->value);
}
static int
a_readeffect(attrib *a, FILE *f)
{
int power;
const potion_type * ptype;
effect_data * edata = (effect_data*)a->data.v;
if (global.data_version < ITEMTYPE_VERSION) {
union {
int i;
short sa[2];
} data;
fscanf(f, "%d", &data.i);
ptype = oldpotiontype[data.sa[0]];
power = data.sa[1];
} else {
char zText[32];
fscanf(f, "%s %d", zText, &power);
ptype = pt_find(zText);
}
if (ptype==NULL || power==0) return AT_READ_FAIL;
edata->type = ptype;
edata->value = power;
return AT_READ_OK;
}
attrib_type at_effect = {
"effect",
a_initeffect,
a_finalizeeffect,
DEFAULT_AGE,
a_writeeffect,
a_readeffect,
};
int
get_effect(const unit * u, const potion_type * effect)
{
const attrib * a;
for (a=a_find(u->attribs, &at_effect); a!=NULL; a=a->nexttype) {
const effect_data * data = (const effect_data *)a->data.v;
if (data->type==effect) return data->value;
}
return 0;
}
int
set_effect (unit * u, const potion_type * effect, int value)
{
attrib ** ap = &u->attribs, * a;
effect_data * data = NULL;
while (*ap && (*ap)->type!=&at_effect) ap=&(*ap)->next;
a = *ap;
while (a) {
data = (effect_data *)a->data.v;
if (data->type==effect) break;
a=a->nexttype;
}
if (!a && value) {
attrib * an = a_add(ap, a_new(&at_effect));
data = (effect_data*)an->data.v;
data->type = effect;
data->value = value;
} else if (a && !value) {
a_remove(ap, a);
} else if (a && value) {
data->value = value;
}
return value;
}
int
change_effect (unit * u, const potion_type * effect, int delta)
{
attrib ** ap = &u->attribs, * a;
effect_data * data = NULL;
assert(delta!=0);
while (*ap && (*ap)->type!=&at_effect) ap=&(*ap)->next;
a = *ap;
while (a) {
data = (effect_data *)a->data.v;
if (data->type==effect) break;
a=a->nexttype;
}
if (a!=NULL && data->value+delta==0) {
a_remove(ap, a);
return 0;
} else if (a!=NULL) {
data->value += delta;
} else {
attrib * an = a_add(ap, a_new(&at_effect));
data = (effect_data*)an->data.v;
data->type = effect;
data->value = delta;
}
return data->value;
}