C++ monster类代码示例

/* Monster hit animation */
void game::draw_hit_mon(int x, int y, monster m, bool dead)
{
    if (use_tiles) {
        //int iTimeout = 0;
        tilecontext->init_draw_hit(x, y, m.type->id);
        wrefresh(w_terrain);
        try_update();

        timespec tspec;
        tspec.tv_sec = 0;
        tspec.tv_nsec = 1000000 * OPTIONS["ANIMATION_DELAY"];

        if( tspec.tv_nsec != 0 ) {
            nanosleep(&tspec, NULL);
        }
    } else {
        nc_color cMonColor = m.type->color;
        const std::string &sMonSym = m.symbol();

        hit_animation(POSX + (x - (u.posx + u.view_offset_x)),
                      POSY + (y - (u.posy + u.view_offset_y)),
                      red_background(cMonColor), dead ? "%" : sMonSym);
    }
}

        virtual void select(int entnum, uimenu *menu) {
            if ( ! started ) {
                started = true;
                setup(menu);
            }
            if (entnum != lastent) {
                lastent = entnum;
                tmp = monster(GetMType(entnum));
                if (friendly) {
                    tmp.friendly = -1;
                }
            }

            werase(w_info);
            tmp.print_info(w_info);

            std::string header = string_format("#%d: %s", entnum, GetMType(entnum)->nname().c_str());
            mvwprintz(w_info, 1, ( getmaxx(w_info) - header.size() ) / 2, c_cyan, "%s",
                      header.c_str());

            mvwprintz(w_info, getmaxy(w_info) - 3, 0, c_green, "%s", msg.c_str());
            msg = padding;
            mvwprintw(w_info, getmaxy(w_info) - 2, 0, _("[/] find, [f] friendly, [q]uit"));
        }

void mdefense::zapback( monster &m, Creature *const source,
                        dealt_projectile_attack const * )
{
    if( source == nullptr ) {
        return;
    }
    player const *const foe = dynamic_cast<player *>( source );

    // Players/NPCs can avoid the shock by using non-conductive weapons
    if( foe != nullptr && foe->is_armed() && !foe->weapon.conductive() ) {
        return;
    }

    // Ranged weapons get no zapback, unless they have an active MELEE mode.
    if( foe != nullptr && foe->weapon.is_gun() && !foe->weapon.gun_current_mode().melee() ) {
        return;
    }

    if( source->is_elec_immune() ) {
        return;
    }

    if( g->u.sees( source->pos() ) ) {
        auto const msg_type = ( source == &g->u ) ? m_bad : m_info;
        add_msg( msg_type, _( "Striking the %1$s shocks %2$s!" ),
                 m.name().c_str(), source->disp_name().c_str() );
    }

    damage_instance const shock {
        DT_ELECTRIC, static_cast<float>( rng( 1, 5 ) )
    };
    source->deal_damage( &m, bp_arm_l, shock );
    source->deal_damage( &m, bp_arm_r, shock );

    source->check_dead_state();
}

void mdeath::kill_vines( monster &z )
{
    const std::vector<Creature *> vines = g->get_creatures_if( [&]( const Creature & critter ) {
        const monster *const mon = dynamic_cast<const monster *>( &critter );
        return mon && mon->type->id == mon_creeper_vine;
    } );
    const std::vector<Creature *> hubs = g->get_creatures_if( [&]( const Creature & critter ) {
        const monster *const mon = dynamic_cast<const monster *>( &critter );
        return mon && mon != &z && mon->type->id == mon_creeper_hub;
    } );

    for( Creature *const vine : vines ) {
        int dist = rl_dist( vine->pos(), z.pos() );
        bool closer = false;
        for( auto &j : hubs ) {
            if( rl_dist( vine->pos(), j->pos() ) < dist ) {
                break;
            }
        }
        if( !closer ) { // TODO: closer variable is not being updated and is always false!
            vine->die( &z );
        }
    }
}

void mdeath::preg_roach( monster &z )
{
    int num_roach = rng( 1, 3 );
    std::vector <tripoint> roachspots;
    for( const auto &roachp : g->m.points_in_radius( z.pos(), 1 ) ) {
        if( g->is_empty( roachp ) ) {
            roachspots.push_back( roachp );
        }
    }

    while( !roachspots.empty() ) {
        const tripoint target = random_entry_removed( roachspots );
        if( !g->critter_at( target ) ) {
            g->summon_mon( mon_giant_cockroach_nymph, target );
            num_roach--;
            if( g->u.sees( z ) ) {
                add_msg( m_warning, _( "A cockroach nymph crawls out of the pregnant giant cockroach corpse." ) );
            }
        }
        if( num_roach == 0 ) {
            break;
        }
    }
}

void mdeath::normal( monster &z )
{
    if( z.no_corpse_quiet ) {
        return;
    }

    if( z.type->in_species( ZOMBIE ) ) {
        sfx::play_variant_sound( "mon_death", "zombie_death", sfx::get_heard_volume( z.pos() ) );
    }

    if( g->u.sees( z ) ) {
        //Currently it is possible to get multiple messages that a monster died.
        add_msg( m_good, _( "The %s dies!" ), z.name() );
    }

    const int max_hp = std::max( z.get_hp_max(), 1 );
    const float overflow_damage = std::max( -z.get_hp(), 0 );
    const float corpse_damage = 2.5 * overflow_damage / max_hp;
    const bool pulverized = corpse_damage > 5 && overflow_damage > z.get_hp_max();

    z.bleed(); // leave some blood if we have to

    if( !pulverized ) {
        make_mon_corpse( z, static_cast<int>( std::floor( corpse_damage * itype::damage_scale ) ) );
    }
    // if mdeath::splatter was set along normal makes sure it is not called twice
    bool splatt = false;
    for( const auto &deathfunction : z.type->dies ) {
        if( deathfunction == mdeath::splatter ) {
            splatt = true;
        }
    }
    if( !splatt ) {
        splatter( z );
    }
}

void mdeath::gameover( monster &z )
{
    add_msg( m_bad, _( "The %s was destroyed!  GAME OVER!" ), z.name() );
    g->u.hp_cur[hp_torso] = 0;
}

void mdeath::thing( monster &z )
{
    g->summon_mon( mon_thing, z.pos() );
}

void mdeath::smokeburst( monster &z )
{
    std::string explode = string_format( _( "a %s explode!" ), z.name() );
    sounds::sound( z.pos(), 24, sounds::sound_t::combat, explode, false, "explosion", "small" );
    g->m.emit_field( z.pos(), emit_id( "emit_smoke_blast" ) );
}

void mdeath::guilt( monster &z )
{
    const int MAX_GUILT_DISTANCE = 5;
    int kill_count = g->kill_count( z.type->id );
    int maxKills = 100; // this is when the player stop caring altogether.

    // different message as we kill more of the same monster
    std::string msg = _( "You feel guilty for killing %s." ); // default guilt message
    game_message_type msgtype = m_bad; // default guilt message type
    std::map<int, std::string> guilt_tresholds;
    guilt_tresholds[75] = _( "You feel ashamed for killing %s." );
    guilt_tresholds[50] = _( "You regret killing %s." );
    guilt_tresholds[25] = _( "You feel remorse for killing %s." );

    if( g->u.has_trait( trait_PSYCHOPATH ) || g->u.has_trait( trait_PRED3 ) ||
        g->u.has_trait( trait_PRED4 ) ) {
        return;
    }
    if( rl_dist( z.pos(), g->u.pos() ) > MAX_GUILT_DISTANCE ) {
        // Too far away, we can deal with it.
        return;
    }
    if( z.get_hp() >= 0 ) {
        // We probably didn't kill it
        return;
    }
    if( kill_count >= maxKills ) {
        // player no longer cares
        if( kill_count == maxKills ) {
            //~ Message after killing a lot of monsters which would normally affect the morale negatively. %s is the monster name, it will be pluralized with a number of 100.
            add_msg( m_good, _( "After killing so many bloody %s you no longer care "
                                "about their deaths anymore." ), z.name( maxKills ) );
        }
        return;
    } else if( ( g->u.has_trait( trait_PRED1 ) ) || ( g->u.has_trait( trait_PRED2 ) ) ) {
        msg = ( _( "Culling the weak is distasteful, but necessary." ) );
        msgtype = m_neutral;
    } else {
        msgtype = m_bad;
        for( auto &guilt_treshold : guilt_tresholds ) {
            if( kill_count >= guilt_treshold.first ) {
                msg = guilt_treshold.second;
                break;
            }
        }
    }

    add_msg( msgtype, msg, z.name() );

    int moraleMalus = -50 * ( 1.0 - ( static_cast<float>( kill_count ) / maxKills ) );
    int maxMalus = -250 * ( 1.0 - ( static_cast<float>( kill_count ) / maxKills ) );
    time_duration duration = 30_minutes * ( 1.0 - ( static_cast<float>( kill_count ) / maxKills ) );
    time_duration decayDelay = 3_minutes * ( 1.0 - ( static_cast<float>( kill_count ) / maxKills ) );
    if( z.type->in_species( ZOMBIE ) ) {
        moraleMalus /= 10;
        if( g->u.has_trait( trait_PACIFIST ) ) {
            moraleMalus *= 5;
        } else if( g->u.has_trait( trait_PRED1 ) ) {
            moraleMalus /= 4;
        } else if( g->u.has_trait( trait_PRED2 ) ) {
            moraleMalus /= 5;
        }
    }
    g->u.add_morale( MORALE_KILLED_MONSTER, moraleMalus, maxMalus, duration, decayDelay );

}

void mdeath::melt( monster &z )
{
    if( g->u.sees( z ) ) {
        add_msg( m_good, _( "The %s melts away." ), z.name() );
    }
}

void mdeath::splatter( monster &z )
{
    // Limit chunking to flesh, veggy and insect creatures until other kinds are supported.
    const std::vector<material_id> gib_mats = {{
            material_id( "flesh" ), material_id( "hflesh" ),
            material_id( "veggy" ), material_id( "iflesh" ),
            material_id( "bone" )
        }
    };
    const bool gibbable = !z.type->has_flag( MF_NOGIB ) &&
    std::any_of( gib_mats.begin(), gib_mats.end(), [&z]( const material_id & gm ) {
        return z.made_of( gm );
    } );

    const int max_hp = std::max( z.get_hp_max(), 1 );
    const float overflow_damage = std::max( -z.get_hp(), 0 );
    const float corpse_damage = 2.5 * overflow_damage / max_hp;
    bool pulverized = corpse_damage > 5 && overflow_damage > z.get_hp_max();
    // make sure that full splatter happens when this is a set death function, not part of normal
    for( const auto &deathfunction : z.type->dies ) {
        if( deathfunction == mdeath::splatter ) {
            pulverized = true;
        }
    }

    const field_id type_blood = z.bloodType();
    const field_id type_gib = z.gibType();

    if( gibbable ) {
        const auto area = g->m.points_in_radius( z.pos(), 1 );
        int number_of_gibs = std::min( std::floor( corpse_damage ) - 1, 1 + max_hp / 5.0f );

        if( pulverized && z.type->size >= MS_MEDIUM ) {
            number_of_gibs += rng( 1, 6 );
            sfx::play_variant_sound( "mon_death", "zombie_gibbed", sfx::get_heard_volume( z.pos() ) );
        }

        for( int i = 0; i < number_of_gibs; ++i ) {
            g->m.add_splatter( type_gib, random_entry( area ), rng( 1, i + 1 ) );
            g->m.add_splatter( type_blood, random_entry( area ) );
        }
    }

    int num_chunks = rng( 0, z.type->get_meat_chunks_count() / 4 );
    num_chunks = std::min( num_chunks, 10 );

    if( pulverized && gibbable ) {
        const itype_id meat = z.type->get_meat_itype();
        const item chunk( meat );
        for( int i = 0; i < num_chunks; i++ ) {
            bool drop_chunks = true;
            tripoint tarp( z.pos() + point( rng( -3, 3 ), rng( -3, 3 ) ) );
            const auto traj = line_to( z.pos(), tarp );

            for( size_t j = 0; j < traj.size(); j++ ) {
                tarp = traj[j];
                if( one_in( 2 ) && type_blood != fd_null ) {
                    g->m.add_splatter( type_blood, tarp );
                } else {
                    g->m.add_splatter( type_gib, tarp, rng( 1, j + 1 ) );
                }
                if( g->m.impassable( tarp ) ) {
                    g->m.bash( tarp, 3 );
                    if( g->m.impassable( tarp ) ) {
                        // Target is obstacle, not destroyed by bashing,
                        // stop trajectory in front of it, if this is the first
                        // point (e.g. wall adjacent to monster), don't drop anything on it
                        if( j > 0 ) {
                            tarp = traj[j - 1];
                        } else {
                            drop_chunks = false;
                        }
                        break;
                    }
                }
            }

            if( drop_chunks ) {
                g->m.add_item_or_charges( tarp, chunk );
            }
        }
    }
}

void mdeath::disappear( monster &z )
{
    if( g->u.sees( z ) ) {
        add_msg( m_good, _( "The %s disappears." ), z.name() );
    }
}

void shoot_monster(game *g, player &p, monster &mon, int &dam, double goodhit, item* weapon)
{
 // Gunmods don't have a type, so use the player weapon type.
 it_gun* firing = dynamic_cast<it_gun*>(p.weapon.type);
 std::string message;
 bool u_see_mon = g->u_see(&(mon));
 if (mon.has_flag(MF_HARDTOSHOOT) && !one_in(4) &&
     weapon->curammo->phase != LIQUID &&
     weapon->curammo->accuracy >= 4) { // Buckshot hits anyway
  if (u_see_mon)
   g->add_msg("The shot passes through the %s without hitting.",
           mon.name().c_str());
  goodhit = 1;
 } else { // Not HARDTOSHOOT
// Armor blocks BEFORE any critical effects.
  int zarm = mon.armor_cut();
  zarm -= weapon->curammo->pierce;
  if (weapon->curammo->phase == LIQUID)
   zarm = 0;
  else if (weapon->curammo->accuracy < 4) // Shot doesn't penetrate armor well
   zarm *= rng(2, 4);
  if (zarm > 0)
   dam -= zarm;
  if (dam <= 0) {
   if (u_see_mon)
    g->add_msg("The shot reflects off the %s!",
            mon.name_with_armor().c_str());
   dam = 0;
   goodhit = 1;
  }
  if (goodhit < .1 && !mon.has_flag(MF_NOHEAD)) {
   message = "Headshot!";
   dam = rng(5 * dam, 8 * dam);
   p.practice(g->turn, firing->skill_used, 5);
  } else if (goodhit < .2) {
   message = "Critical!";
   dam = rng(dam * 2, dam * 3);
   p.practice(g->turn, firing->skill_used, 2);
  } else if (goodhit < .4) {
   dam = rng(int(dam * .9), int(dam * 1.5));
   p.practice(g->turn, firing->skill_used, rng(0, 2));
  } else if (goodhit <= .7) {
   message = "Grazing hit.";
   dam = rng(0, dam);
  } else
   dam = 0;
// Find the zombie at (x, y) and hurt them, MAYBE kill them!
  if (dam > 0) {
   mon.moves -= dam * 5;
   if (&p == &(g->u) && u_see_mon)
    g->add_msg("%s You hit the %s for %d damage.", message.c_str(), mon.name().c_str(), dam);
   else if (u_see_mon)
    g->add_msg("%s %s shoots the %s.", message.c_str(), p.name.c_str(), mon.name().c_str());

   bool bMonDead = mon.hurt(dam);
   hit_animation(mon.posx - g->u.posx + VIEWX - g->u.view_offset_x,
                 mon.posy - g->u.posy + VIEWY - g->u.view_offset_y,
                 red_background(mon.type->color), (bMonDead) ? '%' : mon.symbol());

   if (bMonDead)
    g->kill_mon(g->mon_at(mon.posx, mon.posy), (&p == &(g->u)));
   else if (weapon->curammo->ammo_effects != 0)
    g->hit_monster_with_flags(mon, weapon->curammo->ammo_effects);

   dam = 0;
  }
 }
}

void gun_actor::shoot( monster &z, Creature &target ) const
{
    // Make sure our ammo isn't weird.
    if( z.ammo[ammo_type] > max_ammo ) {
        debugmsg( "Generated too much ammo (%d) of type %s for %s in gun_actor::shoot",
                  z.ammo[ammo_type], ammo_type.c_str(), z.name().c_str() );
        z.ammo[ammo_type] = max_ammo;
    }

    const bool require_targeting = ( require_targeting_player && target.is_player() ) ||
                                   ( require_targeting_npc && target.is_npc() ) ||
                                   ( require_targeting_monster && target.is_monster() );
    const bool not_targeted = require_targeting && !z.has_effect( effect_targeted );
    const bool not_laser_locked = require_targeting && laser_lock &&
                                  !target.has_effect( effect_was_laserlocked );

    if( not_targeted || not_laser_locked ) {
        if( !targeting_sound.empty() ) {
            sounds::sound( z.pos(), targeting_volume, _( targeting_sound.c_str() ) );
        }
        if( not_targeted ) {
            z.add_effect( effect_targeted, targeting_timeout );
        }
        if( not_laser_locked ) {
            target.add_effect( effect_laserlocked, 5 );
            target.add_effect( effect_was_laserlocked, 5 );
            target.add_msg_if_player( m_warning,
                                      _( "You're not sure why you've got a laser dot on you..." ) );
        }

        z.moves -= targeting_cost;
        return;
    }

    // It takes a while
    z.moves -= move_cost;

    if( z.ammo[ammo_type] <= 0 && !no_ammo_sound.empty() ) {
        sounds::sound( z.pos(), 10, _( no_ammo_sound.c_str() ) );
        return;
    }

    if( g->u.sees( z ) ) {
        add_msg( m_warning, _( description.c_str() ) );
    }

    npc tmp;
    tmp.name = _( "The " ) + z.name();
    tmp.set_fake( true );
    tmp.recoil = 0;
    tmp.driving_recoil = 0;
    tmp.setpos( z.pos() );
    tmp.str_max = fake_str;
    tmp.dex_max = fake_dex;
    tmp.int_max = fake_int;
    tmp.per_max = fake_per;
    tmp.str_cur = fake_str;
    tmp.dex_cur = fake_dex;
    tmp.int_cur = fake_int;
    tmp.per_cur = fake_per;
    tmp.weapon = item( gun_type, 0 );
    tmp.weapon.set_curammo( ammo_type );
    tmp.weapon.charges = z.ammo[ammo_type];
    if( z.friendly != 0 ) {
        tmp.attitude = NPCATT_DEFEND;
    } else {
        tmp.attitude = NPCATT_KILL;
    }

    for( const auto &pr : fake_skills ) {
        tmp.skillLevel( pr.first ).level( pr.second );
    }

    const auto distance = rl_dist( z.pos(), target.pos() );
    int burst_size = std::min( burst_limit, tmp.weapon.burst_size() );
    if( distance > range_no_burst || burst_size < 1 ) {
        burst_size = 1;
    }

    tmp.fire_gun( target.pos(), burst_size );
    z.ammo[ammo_type] = tmp.weapon.charges;
    if( require_targeting ) {
        z.add_effect( effect_targeted, targeting_timeout_extend );
    }

    if( laser_lock ) {
        // To prevent spamming laser locks when the player can tank that stuff somehow
        target.add_effect( effect_was_laserlocked, 5 );
    }
}