[BOT] Refacto some methods

package bot.difficulty;

import bot.Move;

import bot.interfaces.IBot;

import bot.interfaces.IStrategyBot;

import bot.strategy.AIStrategy;

import bot.strategy.AgStrategy;

import bot.strategy.AbstractStrategyMemo;

import model.PlayBoard;

    public void setStrategy(int strategy) {

        switch (strategy) {

            case AI_STRATEGY -> {

                this.strategyBot = new AIStrategy(this.model, AIdifficulty);

                this.strategyBot = new AgStrategy(this.model, AIdifficulty);

            }

            case MEMO_STRATEGY -> {

                this.strategyBot = new AbstractStrategyMemo(this.model);

package bot.difficulty;

import bot.strategy.AIStrategy;

import bot.strategy.AgStrategy;

import model.PlayBoard;

public class EasyDifficulty extends AbstractDifficulty {

    public EasyDifficulty(PlayBoard model, int strategy) {

        super(model, strategy, AIStrategy.EASY);

        super(model, strategy, AgStrategy.EASY);

    }

}

package bot.difficulty;

import bot.strategy.AIStrategy;

import bot.strategy.AgStrategy;

import model.PlayBoard;

public class HardDifficulty extends AbstractDifficulty {

    public HardDifficulty(PlayBoard model, int strategy) {

        super(model, strategy, AIStrategy.HARD);

        super(model, strategy, AgStrategy.HARD);

    }

}

package bot.difficulty;

import bot.strategy.AIStrategy;

import bot.strategy.AgStrategy;

import model.PlayBoard;

public class MediumDifficulty extends AbstractDifficulty {

    public MediumDifficulty(PlayBoard model, int strategy) {

        super(model, strategy, AIStrategy.MEDIUM);

        super(model, strategy, AgStrategy.MEDIUM);

    }

}