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#include "magic-interpreter-base.hpp"
#include "magic-interpreter-aux.hpp"
#include "magic-interpreter.hpp"
#include "../strings/astring.hpp"
#include "../strings/xstring.hpp"
#include "../io/cxxstdio.hpp"
#include "../mmo/timer.hpp"
#include "magic-expr.hpp"
#include "pc.hpp"
#include "../poison.hpp"
static
void set_int_p(val_t *v, int i, TYPE t)
{
v->ty = t;
v->v.v_int = i;
}
#warning "This code should die"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-macros"
#define set_int(v, i) set_int_p(v, i, TYPE::INT)
#define set_dir(v, i) set_int_p(v, i, TYPE::DIR)
#define SETTER(tty, dyn_ty, field) (val_t *v, tty x) { v->ty = dyn_ty; v->v.field = x; }
static
void set_string SETTER(dumb_string, TYPE::STRING, v_string)
static
void set_entity(val_t *v, dumb_ptr<block_list> e)
{
v->ty = TYPE::ENTITY;
v->v.v_int = e->bl_id;
}
static
void set_invocation(val_t *v, dumb_ptr<invocation> i)
{
v->ty = TYPE::INVOCATION;
v->v.v_int = i->bl_id;
}
static
void set_spell SETTER(dumb_ptr<spell_t>, TYPE::SPELL, v_spell)
#define setenv(f, v, x) f(&(env->varu[v]), x)
#define set_env_int(v, x) setenv(set_int, v, x)
#define set_env_dir(v, x) setenv(set_dir, v, x)
#define set_env_string(v, x) setenv(set_string, v, x)
#define set_env_entity(v, x) setenv(set_entity, v, x)
#define set_env_location(v, x) setenv(set_location, v, x)
#define set_env_area(v, x) setenv(set_area, v, x)
#define set_env_invocation(v, x) setenv(set_invocation, v, x)
#define set_env_spell(v, x) setenv(set_spell, v, x)
#pragma GCC diagnostic pop
magic_conf_t magic_conf; /* Global magic conf */
env_t magic_default_env = { &magic_conf, NULL };
AString magic_find_invocation(XString spellname)
{
auto it = magic_conf.spells_by_name.find(spellname);
if (it != magic_conf.spells_by_name.end())
return it->second->invocation;
return AString();
}
dumb_ptr<spell_t> magic_find_spell(XString invocation)
{
auto it = magic_conf.spells_by_invocation.find(invocation);
if (it != magic_conf.spells_by_invocation.end())
return it->second;
return NULL;
}
/* -------------------------------------------------------------------------------- */
/* Spell anchors */
/* -------------------------------------------------------------------------------- */
AString magic_find_anchor_invocation(XString anchor_name)
{
auto it = magic_conf.anchors_by_name.find(anchor_name);
if (it != magic_conf.anchors_by_name.end())
return it->second->invocation;
return AString();
}
dumb_ptr<teleport_anchor_t> magic_find_anchor(XString name)
{
auto it = magic_conf.anchors_by_invocation.find(name);
if (it != magic_conf.anchors_by_invocation.end())
return it->second;
return NULL;
}
/* -------------------------------------------------------------------------------- */
/* Spell guard checks */
/* -------------------------------------------------------------------------------- */
static
dumb_ptr<env_t> alloc_env(magic_conf_t *conf)
{
auto env = dumb_ptr<env_t>::make();
env->varu = make_unique<val_t[]>(conf->varv.size());
env->base_env = conf;
return env;
}
static
dumb_ptr<env_t> clone_env(dumb_ptr<env_t> src)
{
dumb_ptr<env_t> retval = alloc_env(src->base_env);
for (int i = 0; i < src->base_env->varv.size(); i++)
magic_copy_var(&retval->varu[i], &src->varu[i]);
return retval;
}
void magic_free_env(dumb_ptr<env_t> env)
{
for (int i = 0; i < env->base_env->varv.size(); i++)
magic_clear_var(&env->varu[i]);
// handled by std::unique_ptr now. Was a memory leak before.
// delete[] env->vars;
env.delete_();
}
dumb_ptr<env_t> spell_create_env(magic_conf_t *conf, dumb_ptr<spell_t> spell,
dumb_ptr<map_session_data> caster, int spellpower, XString param)
{
dumb_ptr<env_t> env = alloc_env(conf);
switch (spell->spellarg_ty)
{
case SPELLARG::STRING:
set_env_string(spell->arg, dumb_string::copys(param));
break;
case SPELLARG::PC:
{
CharName name = stringish<CharName>(param);
dumb_ptr<map_session_data> subject = map_nick2sd(name);
if (!subject)
subject = caster;
set_env_entity(spell->arg, subject);
break;
}
case SPELLARG::NONE:
break;
default:
FPRINTF(stderr, "Unexpected spellarg type %d\n",
spell->spellarg_ty);
}
set_env_entity(VAR_CASTER, caster);
set_env_int(VAR_SPELLPOWER, spellpower);
set_env_spell(VAR_SPELL, spell);
return env;
}
static
void free_components(dumb_ptr<component_t> *component_holder)
{
if (*component_holder == NULL)
return;
free_components(&(*component_holder)->next);
(*component_holder).delete_();
*component_holder = NULL;
}
void magic_add_component(dumb_ptr<component_t> *component_holder, int id, int count)
{
if (count <= 0)
return;
if (*component_holder == NULL)
{
auto component = dumb_ptr<component_t>::make();
component->next = NULL;
component->item_id = id;
component->count = count;
*component_holder = component;
}
else
{
dumb_ptr<component_t> component = *component_holder;
if (component->item_id == id)
{
component->count += count;
return;
}
else
magic_add_component(&component->next, id, count);
/* Tail-recurse; gcc can optimise this. Not that it matters. */
}
}
static
void copy_components(dumb_ptr<component_t> *component_holder, dumb_ptr<component_t> component)
{
if (component == NULL)
return;
magic_add_component(component_holder, component->item_id, component->count);
copy_components(component_holder, component->next);
}
typedef struct spellguard_check
{
dumb_ptr<component_t> catalysts, components;
int mana;
interval_t casttime;
} spellguard_check_t;
static
int check_prerequisites(dumb_ptr<map_session_data> caster, dumb_ptr<component_t> component)
{
while (component)
{
if (pc_count_all_items(caster, component->item_id) < component->count)
return 0; /* insufficient */
component = component->next;
}
return 1;
}
static
void consume_components(dumb_ptr<map_session_data> caster, dumb_ptr<component_t> component)
{
while (component)
{
pc_remove_items(caster, component->item_id, component->count);
component = component->next;
}
}
static
int spellguard_can_satisfy(spellguard_check_t *check, dumb_ptr<map_session_data> caster,
dumb_ptr<env_t> env, int *near_miss)
{
tick_t tick = gettick();
int retval = check_prerequisites(caster, check->catalysts);
if (retval && near_miss)
*near_miss = 1; // close enough!
retval = retval && caster->cast_tick <= tick /* Hasn't cast a spell too recently */
&& check->mana <= caster->status.sp
&& check_prerequisites(caster, check->components);
if (retval)
{
interval_t casttime = check->casttime;
if (env->VAR(VAR_MIN_CASTTIME).ty == TYPE::INT)
casttime = max(casttime, static_cast<interval_t>(env->VAR(VAR_MIN_CASTTIME).v.v_int));
caster->cast_tick = tick + casttime; /* Make sure not to cast too frequently */
consume_components(caster, check->components);
pc_heal(caster, 0, -check->mana);
}
return retval;
}
static
effect_set_t *spellguard_check_sub(spellguard_check_t *check,
dumb_ptr<spellguard_t> guard,
dumb_ptr<map_session_data> caster,
dumb_ptr<env_t> env,
int *near_miss)
{
if (guard == NULL)
return NULL;
switch (guard->ty)
{
case SPELLGUARD::CONDITION:
if (!magic_eval_int(env, guard->s.s_condition))
return NULL;
break;
case SPELLGUARD::COMPONENTS:
copy_components(&check->components, guard->s.s_components);
break;
case SPELLGUARD::CATALYSTS:
copy_components(&check->catalysts, guard->s.s_catalysts);
break;
case SPELLGUARD::CHOICE:
{
spellguard_check_t altcheck = *check;
effect_set_t *retval;
altcheck.components = NULL;
altcheck.catalysts = NULL;
copy_components(&altcheck.catalysts, check->catalysts);
copy_components(&altcheck.components, check->components);
retval =
spellguard_check_sub(&altcheck, guard->next, caster, env,
near_miss);
free_components(&altcheck.catalysts);
free_components(&altcheck.components);
if (retval)
return retval;
else
return spellguard_check_sub(check, guard->s.s_alt, caster,
env, near_miss);
}
case SPELLGUARD::MANA:
check->mana += magic_eval_int(env, guard->s.s_mana);
break;
case SPELLGUARD::CASTTIME:
check->casttime += static_cast<interval_t>(magic_eval_int(env, guard->s.s_mana));
break;
case SPELLGUARD::EFFECT:
if (spellguard_can_satisfy(check, caster, env, near_miss))
return &guard->s.s_effect;
else
return NULL;
default:
FPRINTF(stderr, "Unexpected spellguard type %d\n",
guard->ty);
return NULL;
}
return spellguard_check_sub(check, guard->next, caster, env, near_miss);
}
static
effect_set_t *check_spellguard(dumb_ptr<spellguard_t> guard,
dumb_ptr<map_session_data> caster, dumb_ptr<env_t> env,
int *near_miss)
{
spellguard_check_t check;
effect_set_t *retval;
check.catalysts = NULL;
check.components = NULL;
check.mana = 0;
check.casttime = interval_t::zero();
retval = spellguard_check_sub(&check, guard, caster, env, near_miss);
free_components(&check.catalysts);
free_components(&check.components);
return retval;
}
/* -------------------------------------------------------------------------------- */
/* Public API */
/* -------------------------------------------------------------------------------- */
effect_set_t *spell_trigger(dumb_ptr<spell_t> spell, dumb_ptr<map_session_data> caster,
dumb_ptr<env_t> env, int *near_miss)
{
dumb_ptr<spellguard_t> guard = spell->spellguard;
if (near_miss)
*near_miss = 0;
for (letdef_t& ld : spell->letdefv)
magic_eval(env, &env->varu[ld.id], ld.expr);
return check_spellguard(guard, caster, env, near_miss);
}
static
void spell_set_location(dumb_ptr<invocation> invocation, dumb_ptr<block_list> entity)
{
magic_clear_var(&invocation->env->varu[VAR_LOCATION]);
invocation->env->varu[VAR_LOCATION].ty = TYPE::LOCATION;
invocation->env->varu[VAR_LOCATION].v.v_location.m = entity->bl_m;
invocation->env->varu[VAR_LOCATION].v.v_location.x = entity->bl_x;
invocation->env->varu[VAR_LOCATION].v.v_location.y = entity->bl_y;
}
void spell_update_location(dumb_ptr<invocation> invocation)
{
if (bool(invocation->spell->flags & SPELL_FLAG::LOCAL))
return;
else
{
dumb_ptr<block_list> owner_bl = map_id2bl(invocation->subject);
if (!owner_bl)
return;
dumb_ptr<map_session_data> owner = owner_bl->is_player();
spell_set_location(invocation, owner);
}
}
dumb_ptr<invocation> spell_instantiate(effect_set_t *effect_set, dumb_ptr<env_t> env)
{
dumb_ptr<invocation> retval;
retval.new_();
dumb_ptr<block_list> caster;
retval->env = env;
retval->caster = env->VAR(VAR_CASTER).v.v_int;
retval->spell = env->VAR(VAR_SPELL).v.v_spell;
retval->stack_size = 0;
retval->current_effect = effect_set->effect;
retval->trigger_effect = effect_set->at_trigger;
retval->end_effect = effect_set->at_end;
caster = map_id2bl(retval->caster); // must still exist
retval->bl_id = map_addobject(retval);
retval->bl_type = BL::SPELL;
retval->bl_m = caster->bl_m;
retval->bl_x = caster->bl_x;
retval->bl_y = caster->bl_y;
map_addblock(retval);
set_env_invocation(VAR_INVOCATION, retval);
return retval;
}
dumb_ptr<invocation> spell_clone_effect(dumb_ptr<invocation> base)
{
dumb_ptr<invocation> retval;
retval.new_();
// block_list in general is not copyable
// since this is the only call site, it is expanded here
//*retval = *base;
retval->next_invocation = NULL;
retval->flags = INVOCATION_FLAG::ZERO;
dumb_ptr<env_t> env = retval->env = clone_env(base->env);
retval->spell = base->spell;
retval->caster = base->caster;
retval->subject = 0;
// retval->timer = 0;
retval->stack_size = 0;
// retval->stack = undef;
retval->script_pos = 0;
// huh?
retval->current_effect = base->trigger_effect;
retval->trigger_effect = base->trigger_effect;
retval->end_effect = NULL;
// retval->status_change_refs = NULL;
retval->bl_id = 0;
retval->bl_prev = NULL;
retval->bl_next = NULL;
retval->bl_m = base->bl_m;
retval->bl_x = base->bl_x;
retval->bl_y = base->bl_y;
retval->bl_type = base->bl_type;
retval->bl_id = map_addobject(retval);
set_env_invocation(VAR_INVOCATION, retval);
return retval;
}
void spell_bind(dumb_ptr<map_session_data> subject, dumb_ptr<invocation> invocation)
{
/* Only bind nonlocal spells */
if (!bool(invocation->spell->flags & SPELL_FLAG::LOCAL))
{
if (bool(invocation->flags & INVOCATION_FLAG::BOUND)
|| invocation->subject || invocation->next_invocation)
{
int *i = NULL;
FPRINTF(stderr,
"[magic] INTERNAL ERROR: Attempt to re-bind spell invocation `%s'\n",
invocation->spell->name);
*i = 1;
return;
}
invocation->next_invocation = subject->active_spells;
subject->active_spells = invocation;
invocation->flags |= INVOCATION_FLAG::BOUND;
invocation->subject = subject->bl_id;
}
spell_set_location(invocation, subject);
}
int spell_unbind(dumb_ptr<map_session_data> subject, dumb_ptr<invocation> invocation_)
{
dumb_ptr<invocation> *seeker = &subject->active_spells;
while (*seeker)
{
if (*seeker == invocation_)
{
*seeker = invocation_->next_invocation;
invocation_->flags &= ~INVOCATION_FLAG::BOUND;
invocation_->next_invocation = NULL;
invocation_->subject = 0;
return 0;
}
seeker = &((*seeker)->next_invocation);
}
return 1;
}
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