C++ player::add_effect方法代码示例

int turret_data::fire( player &p, const tripoint &target )
{
    if( !veh || !part ) {
        return 0;
    }

    int shots = 0;

    p.add_effect( effect_on_roof, 1 );
    p.recoil = abs( veh->velocity ) / 100 / 4;

    auto mode = base()->gun_current_mode();

    auto ammo = ammo_current();
    long qty  = mode->ammo_required();

    if( part->info().has_flag( "USE_TANKS" ) ) {
        mode->ammo_set( ammo, std::min( qty * mode.qty, long( veh->fuel_left( ammo ) ) ) );
    }

    shots = p.fire_gun( target, mode.qty, *mode );

    if( part->info().has_flag( "USE_TANKS" ) ) {
        veh->drain( ammo, qty * shots );
        mode->ammo_unset();
    }

    veh->drain( fuel_type_battery, mode->get_gun_ups_drain() * shots );

    p.remove_effect( effect_on_roof );

    return shots;
}

void start_location::handle_heli_crash( player &u ) const
{
    for( int i = 2; i < num_hp_parts; i++ ) { // Skip head + torso for balance reasons.
        auto part = hp_part( i );
        auto bp_part = u.hp_to_bp( part );
        int roll = int( rng( 1, 8 ) );
        switch( roll ) {
            case 1:
            case 2:// Damage + Bleed
                u.add_effect( effect_bleed, 60, bp_part );
            /* fallthrough */
            case 3:
            case 4:
            case 5: { // Just damage
                auto maxHp = u.get_hp_max( part );
                // Body part health will range from 33% to 66% with occasional bleed
                int dmg = int( rng( maxHp / 3, maxHp * 2 / 3 ) );
                u.apply_damage( nullptr, bp_part, dmg );
                break;
            }
            default: // No damage
                break;
        }
    }
}

void map::apply_character_light( player &p )
{
    if( p.has_effect( effect_onfire ) ) {
        apply_light_source( p.pos(), 8 );
    } else if( p.has_effect( effect_haslight ) ) {
        apply_light_source( p.pos(), 4 );
    }

    float const held_luminance = p.active_light();
    if( held_luminance > LIGHT_AMBIENT_LOW ) {
        apply_light_source( p.pos(), held_luminance );
    }

    if( held_luminance >= 4 && held_luminance > ambient_light_at( p.pos() ) - 0.5f ) {
        p.add_effect( effect_haslight, 1 );
    }
}

void addict_effect( player &u, addiction &add )
{
    const int in = std::min( 20, add.intensity );

    switch( add.type ) {
        case ADD_CIG:
            if( !one_in( 2000 - 20 * in ) ) {
                break;
            }

            u.add_msg_if_player( rng( 0, 6 ) < in ?
                                 _( "You need some nicotine." ) :
                                 _( "You could use some nicotine." ) );
            u.add_morale( MORALE_CRAVING_NICOTINE, -15, -3 * in );
            if( one_in( 800 - 50 * in ) ) {
                u.mod_fatigue( 1 );
            }
            if( u.stim > -5 * in && one_in( 400 - 20 * in ) ) {
                u.stim--;
            }
            break;

        case ADD_CAFFEINE:
            if( !one_in( 2000 - 20 * in ) ) {
                break;
            }

            u.add_msg_if_player( m_warning, _( "You want some caffeine." ) );
            u.add_morale( MORALE_CRAVING_CAFFEINE, -5, -30 );
            if( u.stim > -10 * in && rng( 0, 10 ) < in ) {
                u.stim--;
            }
            if( rng( 8, 400 ) < in ) {
                u.add_msg_if_player( m_bad, _( "Your hands start shaking... you need it bad!" ) );
                u.add_effect( effect_shakes, 20 );
            }
            break;

        case ADD_ALCOHOL:
        case ADD_DIAZEPAM: {
            static const std::string alc_1 = _( "You could use a drink. " );
            static const std::string alc_2 = _( "Your hands start shaking... you need a drink bad!" ) ;
            static const std::string dia_1 = _( "You could use some diazepam." );
            static const std::string dia_2 = _( "You're shaking... you need some diazepam!" );

            const std::string &msg_1 = add.type == ADD_ALCOHOL ? alc_1 : dia_1;
            const std::string &msg_2 = add.type == ADD_ALCOHOL ? alc_2 : dia_2;

            const auto morale_type = add.type == ADD_ALCOHOL ? MORALE_CRAVING_ALCOHOL : MORALE_CRAVING_DIAZEPAM;

            u.mod_per_bonus( -1 );
            u.mod_int_bonus( -1 );
            if( x_in_y( in, HOURS( 2 ) ) ) {
                u.mod_healthy_mod( -1, -in * 10 );
            }
            if( one_in( 20 ) && rng( 0, 20 ) < in ) {
                u.add_msg_if_player( m_warning, msg_1.c_str() );
                u.add_morale( morale_type, -35, -10 * in );
            } else if( rng( 8, 300 ) < in ) {
                u.add_msg_if_player( m_bad, msg_2.c_str() );
                u.add_morale( morale_type, -35, -10 * in );
                u.add_effect( effect_shakes, 50 );
            } else if( !u.has_effect( effect_hallu ) && rng( 10, 1600 ) < in ) {
                u.add_effect( effect_hallu, 3600 );
            }
            break;
        }

        case ADD_SLEEP:
            // No effects here--just in player::can_sleep()
            // EXCEPT!  Prolong this addiction longer than usual.
            if( one_in( 2 ) && add.sated < 0 ) {
                add.sated++;
            }
            break;

        case ADD_PKILLER:
            if( calendar::once_every( 100 - in * 4 ) && u.get_painkiller() > 20 - in ) {
                u.mod_painkiller( -1 );    // Tolerance increases!
            }
            if( u.get_painkiller() >= 35 ) { // No further effects if we're doped up.
                add.sated = 0;
                break;
            }

            u.mod_str_bonus( -1 );
            u.mod_per_bonus( -1 );
            u.mod_dex_bonus( -1 );
            if( u.get_pain() < in * 2 ) {
                u.mod_pain( 1 );
            }
            if( one_in( 1200 - 30 * in ) ) {
                u.mod_healthy_mod( -1, -in * 30 );
            }
            if( one_in( 20 ) && dice( 2, 20 ) < in ) {
                u.add_msg_if_player( m_bad, _( "Your hands start shaking... you need some painkillers." ) );
                u.add_morale( MORALE_CRAVING_OPIATE, -40, -10 * in );
                u.add_effect( effect_shakes, 20 + in * 5 );
            } else if( one_in( 20 ) && dice( 2, 30 ) < in ) {
                u.add_msg_if_player( m_bad, _( "You feel anxious.  You need your painkillers!" ) );
//.........这里部分代码省略.........

void addict_effect(player &u, addiction &add,
                   std::function<void (char const*)> const &cancel_activity)
{
    int const in = add.intensity;

    switch (add.type) {
    case ADD_CIG:
        if (in > 20 || one_in((500 - 20 * in))) {
            u.add_msg_if_player(rng(0, 6) < in ? _("You need some nicotine.") :
                    _("You could use some nicotine."));
            u.add_morale(MORALE_CRAVING_NICOTINE, -15, -50);
            if (one_in(800 - 50 * in)) {
                u.fatigue++;
            }
            if (u.stim > -50 && one_in(400 - 20 * in)) {
                u.stim--;
            }
        }
        break;

    case ADD_CAFFEINE:
        u.moves -= 2;
        if (in > 20 || one_in((500 - 20 * in))) {
            u.add_msg_if_player(m_warning, _("You want some caffeine."));
            u.add_morale(MORALE_CRAVING_CAFFEINE, -5, -30);
            if (u.stim > -150 && rng(0, 10) < in) {
                u.stim--;
            }
            if (rng(8, 400) < in) {
                u.add_msg_if_player(m_bad, _("Your hands start shaking... you need it bad!"));
                u.add_effect("shakes", 20);
            }
        }
        break;

    case ADD_ALCOHOL:
        u.mod_per_bonus(-1);
        u.mod_int_bonus(-1);
        if (rng(40, 1200) <= in * 10) {
            u.mod_healthy_mod(-1, -in * 10);
        }
        if (one_in(20) && rng(0, 20) < in) {
            u.add_msg_if_player(m_warning, _("You could use a drink."));
            u.add_morale(MORALE_CRAVING_ALCOHOL, -35, -120);
        } else if (rng(8, 300) < in) {
            u.add_msg_if_player(m_bad, _("Your hands start shaking... you need a drink bad!"));
            u.add_morale(MORALE_CRAVING_ALCOHOL, -35, -120);
            u.add_effect("shakes", 50);
        } else if (!u.has_effect("hallu") && rng(10, 1600) < in) {
            u.add_effect("hallu", 3600);
        }
        break;

    case ADD_SLEEP:
        // No effects here--just in player::can_sleep()
        // EXCEPT!  Prolong this addiction longer than usual.
        if (one_in(2) && add.sated < 0) {
            add.sated++;
        }
        break;

    case ADD_PKILLER:
        if ((in >= 25 || int(calendar::turn) % (100 - in * 4) == 0) && u.pkill > 0) {
            u.pkill--;    // Tolerance increases!
        }
        if (u.pkill >= 35) { // No further effects if we're doped up.
            add.sated = 0;
        } else {
            u.mod_str_bonus(-(1 + int(in / 7)));
            u.mod_per_bonus(-1);
            u.mod_dex_bonus(-1);
            if (u.pain < in * 3) {
                u.mod_pain(1);
            }
            if (in >= 40 || one_in(1200 - 30 * in)) {
                u.mod_healthy_mod(-1, -in * 30);
            }
            if (one_in(20) && dice(2, 20) < in) {
                u.add_msg_if_player(m_bad, _("Your hands start shaking... you need some painkillers."));
                u.add_morale(MORALE_CRAVING_OPIATE, -40, -200);
                u.add_effect("shakes", 20 + in * 5);
            } else if (one_in(20) && dice(2, 30) < in) {
                u.add_msg_if_player(m_bad, _("You feel anxious.  You need your painkillers!"));
                u.add_morale(MORALE_CRAVING_OPIATE, -30, -200);
            } else if (one_in(50) && dice(3, 50) < in) {
                u.add_msg_if_player(m_bad, _("You throw up heavily!"));
                cancel_activity(_("Throwing up."));
                u.vomit();
            }
        }
        break;

    case ADD_SPEED: {
        // Minimal speed of PC is 0.25 * base speed, that is
        // usually 25 moves, this ensures that even at minimal speed
        // the PC gets 5 moves per turn.
        int move_pen = std::min(in * 5, 20);
        u.moves -= move_pen;
        u.mod_int_bonus(-1);
        u.mod_str_bonus(-1);
//.........这里部分代码省略.........

void ma_buff::apply_buff( player &u ) const
{
    u.add_effect( get_effect_id(), buff_duration );
}