Инкапсуляция против абстракции

encapsulation-vs-abstraction.js

/**
 * Кейс когда лучше инкапсуляция.
 * Необходимо создать 
 */

// Инкапсуляция

class Hero {
    constructor(name, level) {
        this.name = name;
        this.level = level;
    }

    say(text = '') {
        return `${this.name}: ${text}`;
    }

    log() {
        console.log(this.say(`level ${this.level}`));
    }
}

class Hunter extends Hero {
    constructor(name, level, arrow) {
        super(name, level);

        this.arrow = arrow;
    }

    shot() {
        return this.say(`shot arrow ${this.arrow}`);
    }
}

class Druid extends Hero {
    constructor(name, level, spell) {
        super(name, level);

        this.spell = spell;
    }

    cast() {
        return this.say(`casting ${this.spell}`);
    }
}

const musya = new Druid('musya', 10, 'Бросок насвая');
const pusya = new Hunter('pusya', 10, 'Горящая стрела');

// Абстракция

function hero(name, level) {
    const say = (text) => `${name}: ${text}`;

    return {
        say,
        log() {
            console.log(say(`level ${level}`));
        },
    }
}

function hunter(name, level, arrow) {
    const char = hero(name, level);

    return {
        say: char.say,
        log: char.log,
        shot: () => char.say(`shot arrow ${arrow}`),
    }
}

function druid(name, level, spell) {
    const char = hero(name, level);

    return {
        say: char.say,
        log: char.log,
        cast: () => char.say(`casting ${spell}`),
    }
}

const vaflya = druid('vaflya', 25, 'Рунический пердеж');
const pechka = hunter('pechka', 15, 'Стрела богини лун');