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magic.cpp
executable file
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magic.cpp
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/****************************************************************************
* [S]imulated [M]edieval [A]dventure multi[U]ser [G]ame | \\._.// *
* -----------------------------------------------------------| (0...0) *
* SMAUG 1.0 (C) 1994, 1995, 1996 by Derek Snider | ).:.( *
* -----------------------------------------------------------| {o o} *
* SMAUG code team: Thoric, Altrag, Blodkai, Narn, Haus, | / ' ' \ *
* Scryn, Rennard, Swordbearer, Gorog, Grishnakh and Tricops |~'~.VxvxV.~'~*
* ------------------------------------------------------------------------ *
* Merc 2.1 Diku Mud improvments copyright (C) 1992, 1993 by Michael *
* Chastain, Michael Quan, and Mitchell Tse. *
* Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer, *
* Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe. *
* ------------------------------------------------------------------------ *
* Spell handling module *
****************************************************************************/
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "mud.h"
#include "connection.h"
#include "ScentController.h"
#include "Scent.h"
/*
* Local functions.
*/
void say_spell ( CHAR_DATA *ch, int sn ) ;
CHAR_DATA *make_poly_mob (CHAR_DATA *ch, int vnum) ;
ch_ret spell_affect ( int sn, int level, CHAR_DATA *ch, void *vo ) ;
ch_ret spell_affectchar ( int sn, int level, CHAR_DATA *ch, void *vo ) ;
// Forward declarations
void do_look(Character * ch, const char* argument);
void do_recall(Character * ch, const char* argument);
ch_ret spell_null(int sn, int level, Character * ch, void * vo);
/*
* Is immune to a damage type
*/
bool is_immune( CHAR_DATA *ch, sh_int damtype )
{
switch( damtype )
{
case SD_FIRE: if (IS_SET(ch->immune, RIS_FIRE)) return TRUE;
case SD_COLD: if (IS_SET(ch->immune, RIS_COLD)) return TRUE;
case SD_ELECTRICITY: if (IS_SET(ch->immune, RIS_ELECTRICITY)) return TRUE;
case SD_ENERGY: if (IS_SET(ch->immune, RIS_ENERGY)) return TRUE;
case SD_ACID: if (IS_SET(ch->immune, RIS_ACID)) return TRUE;
case SD_POISON: if (IS_SET(ch->immune, RIS_POISON)) return TRUE;
case SD_DRAIN: if (IS_SET(ch->immune, RIS_DRAIN)) return TRUE;
}
return FALSE;
}
/*
* Lookup a skill by name, only stopping at skills the player has.
*/
int ch_slookup( CHAR_DATA *ch, const char *name )
{
int sn;
if ( IS_NPC(ch) )
return skill_lookup( name );
for ( sn = 0; sn < top_sn; sn++ )
{
if ( skill_table[sn]->name_.length() == 0 )
break;
if ( ch->pcdata->learned[sn] > 0
&& ch->level >= skill_table[sn]->skill_level[ch->Class]
&& LOWER(name[0]) == LOWER(skill_table[sn]->name_.str()[0])
&& !str_prefix( name, skill_table[sn]->name_.c_str() ) )
return sn;
}
return -1;
}
/*
* Lookup an herb by name.
*/
int herb_lookup( const char *name )
{
int sn;
for ( sn = 0; sn < top_herb; sn++ )
{
if ( !herb_table[sn] || herb_table[sn]->name_.length() == 0 )
return -1;
if ( LOWER(name[0]) == LOWER(herb_table[sn]->name_.str()[0])
&& !str_prefix( name, herb_table[sn]->name_.c_str() ) )
return sn;
}
return -1;
}
/*
* Lookup a personal skill
*/
int personal_lookup( CHAR_DATA *ch, const char *name )
{
return -1;
}
/*
* Lookup a skill by name.
*/
int skill_lookup( const char *name )
{
int sn;
/* Testaur - test for exact matches before prefixes */
if( (sn=bsearch_skill_exact(name, gsn_first_spell, gsn_first_skill-1)) != -1 )
return sn;
if( (sn=bsearch_skill_exact(name, gsn_first_skill, gsn_first_weapon-1)) != -1 )
return sn;
if( (sn=bsearch_skill_exact(name, gsn_first_weapon, gsn_first_tongue-1)) != -1 )
return sn;
if( (sn=bsearch_skill_exact(name, gsn_first_tongue, gsn_top_sn-1)) != -1 )
return sn;
if ( (sn=bsearch_skill(name, gsn_first_spell, gsn_first_skill-1)) != -1 )
return sn;
if ( (sn=bsearch_skill(name, gsn_first_skill, gsn_first_weapon-1)) != -1 )
return sn;
if ( (sn=bsearch_skill(name, gsn_first_weapon, gsn_first_tongue-1)) != -1 )
return sn;
if ( (sn=bsearch_skill(name, gsn_first_tongue, gsn_top_sn-1)) == -1
&& gsn_top_sn < top_sn )
{
for ( sn = gsn_top_sn; sn < top_sn; sn++ )
{
if ( !skill_table[sn] || skill_table[sn]->name_.length() == 0 )
return -1;
if ( LOWER(name[0]) == LOWER(skill_table[sn]->name_.str()[0])
&& !str_prefix( name, skill_table[sn]->name_.c_str() ) )
return sn;
}
return -1;
}
return sn;
}
/*
* Return a skilltype pointer based on sn -Thoric
* Returns NULL if bad, unused or personal sn.
*/
SkillType *get_skilltype( int sn )
{
if ( sn >= TYPE_PERSONAL )
return NULL;
if ( sn >= TYPE_HERB )
return IS_VALID_HERB(sn-TYPE_HERB) ? herb_table[sn-TYPE_HERB] : NULL;
if ( sn >= TYPE_HIT )
return NULL;
return IS_VALID_SN(sn) ? skill_table[sn] : NULL;
}
/*
* Perform a binary search on a section of the skill table -Thoric
* Each different section of the skill table is sorted alphabetically
*/
int bsearch_skill( const char *name, int first, int top )
{
int sn;
for (;;)
{
sn = (first + top) >> 1;
if ( LOWER(name[0]) == LOWER(skill_table[sn]->name_.str()[0])
&& !str_prefix(name, skill_table[sn]->name_.c_str()) )
return sn;
if (first >= top)
return -1;
if ( strcmp(name, skill_table[sn]->name_.c_str()) < 1)
top = sn - 1;
else
first = sn + 1;
}
return -1;
}
/*
* Perform a binary search on a section of the skill table -Thoric
* Each different section of the skill table is sorted alphabetically
* Check for exact matches only
*/
int bsearch_skill_exact( const char *name, int first, int top )
{
int sn;
for (;;)
{
sn = (first + top) >> 1;
if ( skill_table[sn]->name_.ciEqual(name) )
return sn;
if (first >= top)
return -1;
if (strcmp(name, skill_table[sn]->name_.c_str()) < 1)
top = sn - 1;
else
first = sn + 1;
}
return -1;
}
/*
* Perform a binary search on a section of the skill table
* Each different section of the skill table is sorted alphabetically
* Only match skills player knows -Thoric
*/
int ch_bsearch_skill( CHAR_DATA *ch, const char *name, int first, int top )
{
int sn;
/* Testaur - first test for exact matches */
for (;;)
{
sn = (first + top) >> 1;
if ( LOWER(name[0]) == LOWER(skill_table[sn]->name_.str()[0])
&& skill_table[sn]->name_.ciEqual(name)
&& ch->pcdata->learned[sn] > 0
&& ch->level >= skill_table[sn]->skill_level[ch->Class] )
return sn;
if (first >= top)
break;
if ( strcmp(name, skill_table[sn]->name_.c_str()) < 1 )
top = sn - 1;
else
first = sn + 1;
}
for (;;)
{
sn = (first + top) >> 1;
if ( LOWER(name[0]) == LOWER(skill_table[sn]->name_.str()[0])
&& !str_prefix(name, skill_table[sn]->name_.c_str())
&& ch->pcdata->learned[sn] > 0
&& ch->level >= skill_table[sn]->skill_level[ch->Class] )
return sn;
if (first >= top)
return -1;
if (strcmp( name, skill_table[sn]->name_.c_str()) < 1)
top = sn - 1;
else
first = sn + 1;
}
return -1;
}
/* KSILYAN
Small routine to search for a component.
*/
OBJ_DATA * find_vnum_component( CHAR_DATA * ch, int vnum )
{
OBJ_DATA *obj, *obj2;
for ( obj = ch->last_carrying; obj; obj = obj->prev_content )
{
if ( can_see_obj(ch, obj) )
{
if ( IS_SET(obj->extra_flags_2, ITEM_COMPONENT_CONTAINER) )
{
for ( obj2 = obj->last_content; obj2; obj2 = obj2->prev_content )
{
if ( obj2->pIndexData->vnum == vnum )
return obj2;
}
}
if ( obj->pIndexData->vnum == vnum )
return obj;
}
}
return NULL;
}
int find_spell( CHAR_DATA *ch, const char *name, bool know )
{
if ( IS_NPC(ch) || !know )
return bsearch_skill( name, gsn_first_spell, gsn_first_skill-1 );
else
return ch_bsearch_skill( ch, name, gsn_first_spell, gsn_first_skill-1 );
}
int find_skill( CHAR_DATA *ch, const char *name, bool know )
{
if ( IS_NPC(ch) || !know )
return bsearch_skill( name, gsn_first_skill, gsn_first_weapon-1 );
else
return ch_bsearch_skill( ch, name, gsn_first_skill, gsn_first_weapon-1 );
}
int find_weapon( CHAR_DATA *ch, const char *name, bool know )
{
if ( IS_NPC(ch) || !know )
return bsearch_skill( name, gsn_first_weapon, gsn_first_tongue-1 );
else
return ch_bsearch_skill( ch, name, gsn_first_weapon, gsn_first_tongue-1 );
}
int find_tongue( CHAR_DATA *ch, const char *name, bool know )
{
if ( IS_NPC(ch) || !know )
return bsearch_skill( name, gsn_first_tongue, gsn_top_sn-1 );
else
return ch_bsearch_skill( ch, name, gsn_first_tongue, gsn_top_sn-1 );
}
/*
* Lookup a skill by slot number.
* Used for object loading.
*/
int slot_lookup( int slot )
{
extern bool fBootDb;
int sn;
if ( slot <= 0 )
return -1;
for ( sn = 0; sn < top_sn; sn++ )
if ( slot == skill_table[sn]->slot )
return sn;
if ( fBootDb )
{
bug( "Slot_lookup: bad slot %d.", slot );
abort( );
}
return -1;
}
/*
* Fancy message handling for a successful casting -Thoric
*/
void successful_casting( SkillType *skill, CHAR_DATA *ch,
CHAR_DATA *victim, OBJ_DATA *obj )
{
sh_int chitroom = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_ACTION);
sh_int chit = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HIT);
sh_int chitme = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HITME);
if ( skill->target != TAR_CHAR_OFFENSIVE )
{
chit = chitroom;
chitme = chitroom;
}
if ( ch && ch != victim )
{
if ( skill->hit_char && skill->hit_char[0] != '\0' )
act( chit, skill->hit_char, ch, obj, victim, TO_CHAR );
else
if ( skill->type == SKILL_SPELL )
act( chit, "Ok.", ch, NULL, NULL, TO_CHAR );
}
if ( ch && skill->hit_room && skill->hit_room[0] != '\0' )
act( chitroom, skill->hit_room, ch, obj, victim, TO_NOTVICT );
if ( ch && victim && skill->hit_vict && skill->hit_vict[0] != '\0' )
{
if ( ch != victim )
act( chitme, skill->hit_vict, ch, obj, victim, TO_VICT );
else
act( chitme, skill->hit_vict, ch, obj, victim, TO_CHAR );
}
else
if ( ch && ch == victim && skill->type == SKILL_SPELL )
act( chitme, "Ok.", ch, NULL, NULL, TO_CHAR );
}
/*
* Fancy message handling for a failed casting -Thoric
*/
void failed_casting( SkillType *skill, CHAR_DATA *ch,
CHAR_DATA *victim, OBJ_DATA *obj )
{
sh_int chitroom = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_ACTION);
sh_int chit = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HIT);
sh_int chitme = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HITME);
if ( skill->target != TAR_CHAR_OFFENSIVE )
{
chit = chitroom;
chitme = chitroom;
}
if ( ch && ch != victim )
{
if ( skill->miss_char && skill->miss_char[0] != '\0' )
act( chit, skill->miss_char, ch, obj, victim, TO_CHAR );
else
if ( skill->type == SKILL_SPELL )
act( chit, "You failed.", ch, NULL, NULL, TO_CHAR );
}
if ( ch && skill->miss_room && skill->miss_room[0] != '\0' )
act( chitroom, skill->miss_room, ch, obj, victim, TO_NOTVICT );
if ( ch && victim && skill->miss_vict && skill->miss_vict[0] != '\0' )
{
if ( ch != victim )
act( chitme, skill->miss_vict, ch, obj, victim, TO_VICT );
else
act( chitme, skill->miss_vict, ch, obj, victim, TO_CHAR );
}
else
if ( ch && ch == victim )
{
if ( skill->miss_char && skill->miss_char[0] != '\0' )
act( chitme, skill->miss_char, ch, obj, victim, TO_CHAR );
else
if ( skill->type == SKILL_SPELL )
act( chitme, "You failed.", ch, NULL, NULL, TO_CHAR );
}
}
/*
* Fancy message handling for being immune to something -Thoric
*/
void immune_casting( SkillType *skill, CHAR_DATA *ch,
CHAR_DATA *victim, OBJ_DATA *obj )
{
sh_int chitroom = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_ACTION);
sh_int chit = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HIT);
sh_int chitme = (skill->type == SKILL_SPELL ? AT_MAGIC : AT_HITME);
if ( skill->target != TAR_CHAR_OFFENSIVE )
{
chit = chitroom;
chitme = chitroom;
}
if ( ch && ch != victim )
{
if ( skill->imm_char && skill->imm_char[0] != '\0' )
act( chit, skill->imm_char, ch, obj, victim, TO_CHAR );
else
if ( skill->miss_char && skill->miss_char[0] != '\0' )
act( chit, skill->hit_char, ch, obj, victim, TO_CHAR );
else
if ( skill->type == SKILL_SPELL || skill->type == SKILL_SKILL )
act( chit, "That appears to have no effect.", ch, NULL, NULL, TO_CHAR );
}
if ( ch && skill->imm_room && skill->imm_room[0] != '\0' )
act( chitroom, skill->imm_room, ch, obj, victim, TO_NOTVICT );
else
if ( ch && skill->miss_room && skill->miss_room[0] != '\0' )
act( chitroom, skill->miss_room, ch, obj, victim, TO_NOTVICT );
if ( ch && victim && skill->imm_vict && skill->imm_vict[0] != '\0' )
{
if ( ch != victim )
act( chitme, skill->imm_vict, ch, obj, victim, TO_VICT );
else
act( chitme, skill->imm_vict, ch, obj, victim, TO_CHAR );
}
else
if ( ch && victim && skill->miss_vict && skill->miss_vict[0] != '\0' )
{
if ( ch != victim )
act( chitme, skill->miss_vict, ch, obj, victim, TO_VICT );
else
act( chitme, skill->miss_vict, ch, obj, victim, TO_CHAR );
}
else
if ( ch && ch == victim )
{
if ( skill->imm_char && skill->imm_char[0] != '\0' )
act( chit, skill->imm_char, ch, obj, victim, TO_CHAR );
else
if ( skill->miss_char && skill->miss_char[0] != '\0' )
act( chit, skill->hit_char, ch, obj, victim, TO_CHAR );
else
if ( skill->type == SKILL_SPELL || skill->type == SKILL_SKILL )
act( chit, "That appears to have no affect.", ch, NULL, NULL, TO_CHAR );
}
}
/*
* Utter mystical words for an sn.
*/
void say_spell( CHAR_DATA *ch, int sn )
{
char buf [MAX_STRING_LENGTH];
char buf2 [MAX_STRING_LENGTH];
CHAR_DATA *rch;
const char *pName;
int iSyl;
int length;
SkillType *skill = get_skilltype( sn );
struct syl_type
{
const char * old;
const char * New;
};
static const struct syl_type syl_table[] =
{
{ " ", " " },
{ "ar", "abra" },
{ "au", "kada" },
{ "bless", "fido" },
{ "blind", "nose" },
{ "bur", "mosa" },
{ "cu", "judi" },
{ "de", "oculo" },
{ "en", "unso" },
{ "light", "dies" },
{ "lo", "hi" },
{ "mor", "zak" },
{ "move", "sido" },
{ "ness", "lacri" },
{ "ning", "illa" },
{ "per", "duda" },
{ "ra", "gru" },
{ "re", "candus" },
{ "son", "sabru" },
{ "tect", "infra" },
{ "tri", "cula" },
{ "ven", "nofo" },
{ "a", "a" }, { "b", "b" }, { "c", "q" }, { "d", "e" },
{ "e", "z" }, { "f", "y" }, { "g", "o" }, { "h", "p" },
{ "i", "u" }, { "j", "y" }, { "k", "t" }, { "l", "r" },
{ "m", "w" }, { "n", "i" }, { "o", "a" }, { "p", "s" },
{ "q", "d" }, { "r", "f" }, { "s", "g" }, { "t", "h" },
{ "u", "j" }, { "v", "z" }, { "w", "x" }, { "x", "n" },
{ "y", "l" }, { "z", "k" },
{ "", "" }
};
buf[0] = '\0';
for ( pName = skill->name_.c_str(); *pName != '\0'; pName += length )
{
for ( iSyl = 0; (length = strlen(syl_table[iSyl].old)) != 0; iSyl++ )
{
if ( !str_prefix( syl_table[iSyl].old, pName ) )
{
strcat( buf, syl_table[iSyl].New );
break;
}
}
if ( length == 0 )
length = 1;
}
sprintf( buf2, "$n utters the words, '%s'.", buf );
sprintf( buf, "$n utters the words, '%s'.", skill->name_.c_str() );
for ( rch = ch->GetInRoom()->first_person; rch; rch = rch->next_in_room )
{
if ( rch != ch )
act( AT_MAGIC, ch->Class==rch->Class ? buf : buf2,
ch, NULL, rch, TO_VICT );
}
return;
}
/*
* Make adjustments to saving throw based in RIS -Thoric
*/
int ris_save( CHAR_DATA *ch, int chance, int ris )
{
sh_int modifier;
modifier = 10;
if ( IS_SET(ch->immune, ris ) )
modifier -= 10;
if ( IS_SET(ch->resistant, ris ) )
modifier -= 2;
if ( IS_SET(ch->susceptible, ris ) )
modifier += 2;
if ( modifier <= 0 )
return 1000;
if ( modifier == 10 )
return chance;
return (chance * modifier) / 10;
}
/* -Thoric
* Fancy dice expression parsing complete with order of operations,
* simple exponent support, dice support as well as a few extra
* variables: L = level, H = hp, M = mana, V = move, S = str, X = dex
* I = int, W = wis, C = con, A = cha, U = luck, A = age
*
* Used for spell dice parsing, ie: 3d8+L-6
*
*/
int rd_parse(CHAR_DATA *ch, int level, char *exp)
{
unsigned int x;
int lop = 0, gop = 0, eop = 0;
char operation;
char *sexp[2];
int total = 0;
unsigned int len = 0;
// take care of nulls coming in
if (!exp || !strlen(exp))
return 0;
// get rid of brackets if they surround the entire expresion
if ((*exp == '(') && !index(exp+1,'(') && exp[strlen(exp)-1] == ')')
{
exp[strlen(exp)-1] = '\0';
exp++;
}
// check if the expresion is just a number
len = strlen(exp);
if ( len == 1 && isalpha(exp[0]) )
{
switch(exp[0])
{
case 'L': case 'l': return level;
case 'H': case 'h': return ch->hit;
case 'M': case 'm': return ch->mana;
case 'V': case 'v': return ch->move;
case 'S': case 's': return ch->getStr();
case 'I': case 'i': return ch->getInt();
case 'W': case 'w': return ch->getWis();
case 'X': case 'x': return ch->getDex();
case 'C': case 'c': return ch->getCon();
case 'A': case 'a': return ch->getCha();
case 'U': case 'u': return ch->getLck();
case 'Y': case 'y': return get_age(ch);
case 'F': case 'f': return IS_NPC(ch) ? 1 : ch->pcdata->favor;
}
}
for (x = 0; x < len; ++x)
{
if (!isdigit(exp[x]) && !isspace(exp[x]))
break;
}
if (x == len) return(atoi(exp));
/* break it into 2 parts */
for (x = 0; x < strlen(exp); ++x)
{
switch(exp[x])
{
case '^':
if (!total)
eop = x;
break;
case '-': case '+':
if (!total)
lop = x;
break;
case '*': case '/': case '%': case 'd': case 'D':
if (!total)
gop = x;
break;
case '(':
++total;
break;
case ')':
--total;
break;
}
}
if (lop)
x = lop;
else if (gop)
x = gop;
else
x = eop;
operation = exp[x];
exp[x] = '\0';
sexp[0] = exp;
sexp[1] = (char *)(exp+x+1);
/* work it out */
total = rd_parse(ch, level, sexp[0]);
switch(operation)
{
case '-': total -= rd_parse(ch, level, sexp[1]); break;
case '+': total += rd_parse(ch, level, sexp[1]); break;
case '*': total *= rd_parse(ch, level, sexp[1]); break;
case '/': total /= rd_parse(ch, level, sexp[1]); break;
case '%': total %= rd_parse(ch, level, sexp[1]); break;
case 'd': case 'D': total = dice( total, rd_parse(ch, level, sexp[1]) ); break;
case '^':
{
int y = rd_parse(ch, level, sexp[1]), z = total;
for (int x = 1; x < y; ++x)
z *= total;
total = z;
break;
}
}
return total;
}
/* wrapper function so as not to destroy exp */
int dice_parse(CHAR_DATA *ch, int level, char *exp)
{
char buf[MAX_INPUT_LENGTH];
strcpy( buf, exp );
return rd_parse(ch, level, buf);
}
/*
* Compute a saving throw.
* Negative apply's make saving throw better.
*/
bool saves_poison_death( int level, CHAR_DATA *victim )
{
int save;
save = 50 + ( victim->level - level - victim->saving_poison_death ) * 5;
save = URANGE( 5, save, 95 );
return victim->ChanceRoll( save );
}
bool saves_wands( int level, CHAR_DATA *victim )
{
int save;
if ( IS_SET( victim->immune, RIS_MAGIC ) )
return TRUE;
save = 50 + ( victim->level - level - victim->saving_wand ) * 5;
save = URANGE( 5, save, 95 );
return victim->ChanceRoll( save );
}
bool saves_para_petri( int level, CHAR_DATA *victim )
{
int save;
save = 50 + ( victim->level - level - victim->saving_para_petri ) * 5;
save = URANGE( 5, save, 95 );
return victim->ChanceRoll( save );
}
bool saves_breath( int level, CHAR_DATA *victim )
{
int save;
save = 50 + ( victim->level - level - victim->saving_breath ) * 5;
save = URANGE( 5, save, 95 );
return victim->ChanceRoll( save );
}
bool saves_spell_staff( int level, CHAR_DATA *victim )
{
int save;
if ( IS_SET( victim->immune, RIS_MAGIC ) )
return TRUE;
if ( IS_NPC( victim ) && level > 10 )
level -= 5;
save = 50 + ( victim->level - level - victim->saving_spell_staff ) * 5;
save = URANGE( 5, save, 95 );
return victim->ChanceRoll( save );
}
/*
* Process the spell's required components, if any -Thoric
* -----------------------------------------------
* T### check for item of type ###
* V##### check for item of vnum #####
* Kword check for item with keyword 'word'
* G##### check if player has ##### amount of gold
* H#### check if player has #### amount of hitpoints
*
* Special operators:
* ! spell fails if player has this
* + don't consume this component
* @ decrease component's value[0], and extract if it reaches 0
* # decrease component's value[1], and extract if it reaches 0
* $ decrease component's value[2], and extract if it reaches 0
* % decrease component's value[3], and extract if it reaches 0
* ^ decrease component's value[4], and extract if it reaches 0
* & decrease component's value[5], and extract if it reaches 0
*/
bool process_spell_components( CHAR_DATA *ch, int sn )
{
SkillType *skill = get_skilltype(sn);
char *comp = skill->components;
char *check;
char arg[MAX_INPUT_LENGTH];
bool consume, fail, found;
int val, value;
OBJ_DATA *obj;
/* if no components necessary, then everything is cool */
if ( !comp || comp[0] == '\0' )
return TRUE;
while ( comp[0] != '\0' )
{
comp = one_argument( comp, arg );
consume = TRUE;
fail = found = FALSE;
val = -1;
switch( arg[1] )
{
default: check = arg+1; break;
case '!': check = arg+2; fail = TRUE; break;
case '+': check = arg+2; consume = FALSE; break;
case '@': check = arg+2; val = 0; break;
case '#': check = arg+2; val = 1; break;
case '$': check = arg+2; val = 2; break;
case '%': check = arg+2; val = 3; break;
case '^': check = arg+2; val = 4; break;
case '&': check = arg+2; val = 5; break;
}
value = atoi(check);
obj = NULL;
switch( UPPER(arg[0]) )
{
case 'T':
for ( obj = ch->first_carrying; obj; obj = obj->next_content )
if ( obj->item_type == value )
{
if ( fail )
{
send_to_char( "Something disrupts the casting of this spell...\r\n", ch );
return FALSE;
}
found = TRUE;
break;
}
break;
case 'V':
obj = find_vnum_component(ch, value);
if (obj != NULL)
{
if (fail)
{
send_to_char( "Something disrupts the casting of this spell...\r\n", ch);
return FALSE;
}
found = TRUE;
break;
}
/* KSILYAN - reworked component searching
for ( obj = ch->first_carrying; obj; obj = obj->next_content )
if ( obj->pIndexData->vnum == value )
{
if ( fail )
{
send_to_char( "Something disrupts the casting of this spell...\r\n", ch );
return FALSE;
}
found = TRUE;
break;
}*/
break;
case 'K':
for ( obj = ch->first_carrying; obj; obj = obj->next_content )
if ( nifty_is_name( check, obj->name_.c_str() ) )
{
if ( fail )
{
send_to_char( "Something disrupts the casting of this spell...\r\n", ch );
return FALSE;
}
found = TRUE;
break;
}
break;
case 'G':
if ( ch->gold >= value ) {
if ( fail ) {
send_to_char( "Something disrupts the casting of this spell...\r\n", ch );
return FALSE;
} else {
if ( consume ) {
set_char_color( AT_GOLD, ch );
send_to_char( "You feel a little lighter...\r\n", ch );
ch->gold -= value;
}
continue;
}
}
break;
case 'H':
if ( ch->hit >= value ) {
if ( fail ) {
send_to_char( "Something disrupts the casting of this spell...\r\n", ch );
return FALSE;
} else {
if ( consume ) {
set_char_color( AT_BLOOD, ch );
send_to_char( "You feel a little weaker...\r\n", ch );
ch->hit -= value;
update_pos( ch );
}
continue;
}
}
break;
}
/* having this component would make the spell fail... if we get
here, then the caster didn't have that component */
if ( fail )
continue;
if ( !found )
{
send_to_char( "Something is missing...\r\n", ch );
return FALSE;
}
if ( obj )
{
if (obj->item_type == ITEM_COMPONENT)
{
obj->value[OBJECT_COMPONENT_QUANTITY]--;
if (obj->value[OBJECT_COMPONENT_QUANTITY] == 0)
{
extract_obj(obj, TRUE);
}
act( AT_MAGIC, "You take $p, which glows briefly, then disappears!", ch, obj, NULL, TO_CHAR );
act( AT_MAGIC, "$n holds $p, which glows briefly, then disappears!", ch, obj, NULL, TO_ROOM );
}
else
{
if ( val >=0 && val < 6 )
{
separate_obj(obj);
if ( obj->value[val] <= 0 )
return FALSE;
else if ( --obj->value[val] == 0 )
{
act( AT_MAGIC, "$p glows briefly, then disappears in a puff of smoke!", ch, obj, NULL, TO_CHAR );
act( AT_MAGIC, "$p glows briefly, then disappears in a puff of smoke!", ch, obj, NULL, TO_ROOM );
extract_obj( obj, TRUE );
}
else
act( AT_MAGIC, "$p glows briefly and a whisp of smoke rises from it.", ch, obj, NULL, TO_CHAR );
}
else if ( consume )
{
separate_obj(obj);
act( AT_MAGIC, "$p glows brightly, then disappears in a puff of smoke!", ch, obj, NULL, TO_CHAR );
act( AT_MAGIC, "$p glows brightly, then disappears in a puff of smoke!", ch, obj, NULL, TO_ROOM );
extract_obj( obj, TRUE );
}
else
{
int count = obj->count;
obj->count = 1;
act( AT_MAGIC, "$p glows briefly.", ch, obj, NULL, TO_CHAR );
obj->count = count;
}
}
}
}
return TRUE;
}
int pAbort;
/*
* Locate targets.
*/
void *locate_targets( CHAR_DATA *ch, char *arg, int sn,
CHAR_DATA **victim, OBJ_DATA **obj )
{
SkillType *skill = get_skilltype( sn );
void *vo = NULL;
*victim = NULL;
*obj = NULL;
switch ( skill->target )
{
default:
bug( "Do_cast: bad target for sn %d.", sn );
return &pAbort;
case TAR_IGNORE:
break;
case TAR_CHAR_OFFENSIVE:
if ( arg[0] == '\0' )
{
if ( ( *victim = ch->GetVictim() ) == NULL )