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#include <cstring>
#include "../common/cxxstdio.hpp"
#include "magic-interpreter.hpp"
#include "pc.hpp"
#include "../poison.hpp"
#undef DEBUG
static
char *magic_preprocess_message(character_t *character, char *start,
char *end)
{
if (character->state.shroud_active
&& character->state.shroud_disappears_on_talk)
magic_unshroud(character);
if (character->state.shroud_active
&& character->state.shroud_hides_name_talking)
{
int len = strlen(end);
strcpy(start, "? ");
memmove(start + 2, end, len + 1);
return start + 4;
}
else
return end + 2; /* step past blank */
}
/* Returns a dynamically allocated copy of `src'.
* `*parameter' may point within that copy or be NULL. */
static
char *magic_tokenise(char *src, char **parameter)
{
char *retval = strdup(src);
char *seeker = retval;
while (*seeker && *seeker != ' ')
++seeker;
if (!*seeker)
*parameter = NULL;
else
{
*seeker = 0; /* Terminate invocation */
++seeker;
while (*seeker == ' ')
++seeker;
*parameter = seeker;
}
return retval;
}
int magic_message(character_t *caster, char *spell_, size_t)
{
if (pc_isdead(caster))
return 0;
int power = caster->matk1;
char *invocation_base = spell_ + 8;
char *source_invocation =
1 + invocation_base + strlen(caster->status.name);
spell_t *spell;
char *parameter;
char *spell_invocation;
if (!source_invocation)
return 0;
/* Pre-message filter in case some spell alters output */
source_invocation =
magic_preprocess_message(caster, invocation_base, source_invocation);
spell_invocation = magic_tokenise(source_invocation, ¶meter);
parameter = parameter ? strdup(parameter) : strdup("");
spell = magic_find_spell(spell_invocation);
free(spell_invocation);
if (spell)
{
int near_miss;
env_t *env =
spell_create_env(&magic_conf, spell, caster, power, parameter);
effect_set_t *effects;
if (bool(spell->flags & SPELL_FLAG::NONMAGIC) || (power >= 1))
effects = spell_trigger(spell, caster, env, &near_miss);
else
effects = NULL;
#ifdef DEBUG
FPRINTF(stderr, "Found spell `%s', triggered = %d\n", spell_,
effects != NULL);
#endif
if (bool(caster->status.option & Option::HIDE))
return 0; // No spellcasting while hidden
MAP_LOG_PC(caster, "CAST %s %s",
spell->name, effects ? "SUCCESS" : "FAILURE");
if (effects)
{
invocation_t *invocation = spell_instantiate(effects, env);
spell_bind(caster, invocation);
spell_execute(invocation);
return bool(spell->flags & SPELL_FLAG::SILENT) ? -1 : 1;
}
else
magic_free_env(env);
return 1;
}
else
free(parameter);
return 0; /* Not a spell */
}
void do_init_magic(void)
{
magic_init(MAGIC_CONFIG_FILE);
}
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