[MV Script] AddEnemyBookToMenu

Code:
//========================================================================================

// AddEnemyBookToMenu : Window_MenuCommand now includes an option to open EnemyBook scene

//========================================================================================



/*:

 * @plugindesc Displays the Bestiary menu option.

 * @author Kyonides-Arkanthos

 *

 * @param None

 */



/*

 * Enemy Book Description: Displays detailed statuses of enemies.

 * Enemy Book Author: Yoji Ojima

 */

 

function Scene_EnemyBook() {

    this.initialize.apply(this, arguments);

}



Scene_EnemyBook.prototype = Object.create(Scene_MenuBase.prototype);

Scene_EnemyBook.prototype.constructor = Scene_EnemyBook;



Scene_EnemyBook.prototype.initialize = function() {

    Scene_MenuBase.prototype.initialize.call(this);

};



Scene_EnemyBook.prototype.create = function() {

    Scene_MenuBase.prototype.create.call(this);

    this._indexWindow = new Window_EnemyBookIndex(0, 0);

    this._indexWindow.setHandler('cancel', this.popScene.bind(this));

    var wy = this._indexWindow.height;

    var ww = Graphics.boxWidth;

    var wh = Graphics.boxHeight - wy;

    var parameters = PluginManager.parameters('EnemyBook');

    this.unknownData = String(parameters['Unknown Data'] || '??????');

    this._statusWindow = new Window_EnemyBookStatus(0, wy, ww, wh);

    this.addWindow(this._indexWindow);

    this.addWindow(this._statusWindow);

    this._indexWindow.setStatusWindow(this._statusWindow);

};



function Window_EnemyBookIndex() {

    this.initialize.apply(this, arguments);

}



Window_EnemyBookIndex.prototype = Object.create(Window_Selectable.prototype);

Window_EnemyBookIndex.prototype.constructor = Window_EnemyBookIndex;



Window_EnemyBookIndex.lastTopRow = 0;

Window_EnemyBookIndex.lastIndex  = 0;



Window_EnemyBookIndex.prototype.initialize = function(x, y) {

    var width = Graphics.boxWidth;

    var height = this.fittingHeight(6);

    Window_Selectable.prototype.initialize.call(this, x, y, width, height);

    this.refresh();

    this.setTopRow(Window_EnemyBookIndex.lastTopRow);

    this.select(Window_EnemyBookIndex.lastIndex);

    this.activate();

}



Window_EnemyBookIndex.prototype.maxCols = function() { return 3; }



 Window_EnemyBookIndex.prototype.maxItems = function() {

    return this._list ? this._list.length : 0;

}



Window_EnemyBookIndex.prototype.setStatusWindow = function(statusWindow) {

    this._statusWindow = statusWindow;

    this.updateStatus();

}



Window_EnemyBookIndex.prototype.update = function() {

    Window_Selectable.prototype.update.call(this);

    this.updateStatus();

}



Window_EnemyBookIndex.prototype.updateStatus = function() {

    if (this._statusWindow) {

        var enemy = this._list[this.index()];

        this._statusWindow.setEnemy(enemy);

    }

}



Window_EnemyBookIndex.prototype.refresh = function() {

    this._list = [];

    for (var i = 1; i < $dataEnemies.length; i++) {

        var enemy = $dataEnemies[i];

        if (enemy.name && enemy.meta.book !== 'no') {

            this._list.push(enemy);

        }

    }

    this.createContents();

    this.drawAllItems();

}



Window_EnemyBookIndex.prototype.drawItem = function(index) {

    var enemy = this._list[index];

    var rect = this.itemRectForText(index);

    var name;

    if ($gameSystem.isInEnemyBook(enemy)) {

        name = enemy.name;

    } else {

        name = this.unknownData;

    }

    this.drawText(name, rect.x, rect.y, rect.width);

}



Window_EnemyBookIndex.prototype.processCancel = function() {

    Window_Selectable.prototype.processCancel.call(this);

    Window_EnemyBookIndex.lastTopRow = this.topRow();

    Window_EnemyBookIndex.lastIndex = this.index();

}



function Window_EnemyBookStatus() {

    this.initialize.apply(this, arguments);

}



Window_EnemyBookStatus.prototype = Object.create(Window_Base.prototype)

Window_EnemyBookStatus.prototype.constructor = Window_EnemyBookStatus;



Window_EnemyBookStatus.prototype.initialize = function(x, y, width, height) {

    Window_Base.prototype.initialize.call(this, x, y, width, height);

    this._enemy = null;

    this._enemySprite = new Sprite();

    this._enemySprite.anchor.x = 0.5;

    this._enemySprite.anchor.y = 0.5;

    this._enemySprite.x = width / 2 - 20;

    this._enemySprite.y = height / 2;

    this.addChildToBack(this._enemySprite);

    this.refresh();

}



 Window_EnemyBookStatus.prototype.setEnemy = function(enemy) {

    if (this._enemy !== enemy) {

        this._enemy = enemy;

        this.refresh();

    }

}



Window_EnemyBookStatus.prototype.update = function() {

    Window_Base.prototype.update.call(this);

    if (this._enemySprite.bitmap) {

        var bitmapHeight = this._enemySprite.bitmap.height;

        var contentsHeight = this.contents.height;

        var scale = 1;

        if (bitmapHeight > contentsHeight) {

            scale = contentsHeight / bitmapHeight;

        }

        this._enemySprite.scale.x = scale;

        this._enemySprite.scale.y = scale;

    }

}



Window_EnemyBookStatus.prototype.refresh = function() {

    var enemy = this._enemy;

    var x = 0;

    var y = 0;

    var lineHeight = this.lineHeight();



    this.contents.clear();



    if (!enemy || !$gameSystem.isInEnemyBook(enemy)) {

        this._enemySprite.bitmap = null;

        return;

    }



    var name = enemy.battlerName;

    var hue = enemy.battlerHue;

    var bitmap;

    if ($gameSystem.isSideView()) {

        bitmap = ImageManager.loadSvEnemy(name, hue);

    } else {

        bitmap = ImageManager.loadEnemy(name, hue);

    }

    this._enemySprite.bitmap = bitmap;



    this.resetTextColor();

    this.drawText(enemy.name, x, y);



    x = this.textPadding();

    y = lineHeight + this.textPadding();



    for (var i = 0; i < 8; i++) {

        this.changeTextColor(this.systemColor());

        this.drawText(TextManager.param(i), x, y, 160);

        this.resetTextColor();

        this.drawText(enemy.params[i], x + 160, y, 60, 'right');

        y += lineHeight;

    }



    var rewardsWidth = 280;

    x = this.contents.width - rewardsWidth;

    y = lineHeight + this.textPadding();



    this.resetTextColor();

    this.drawText(enemy.exp, x, y);

    x += this.textWidth(enemy.exp) + 6;

    this.changeTextColor(this.systemColor());

    this.drawText(TextManager.expA, x, y);

    x += this.textWidth(TextManager.expA + '  ');



    this.resetTextColor();

    this.drawText(enemy.gold, x, y);

    x += this.textWidth(enemy.gold) + 6;

    this.changeTextColor(this.systemColor());

    this.drawText(TextManager.currencyUnit, x, y);



    x = this.contents.width - rewardsWidth;

    y += lineHeight;



    for (var j = 0; j < enemy.dropItems.length; j++) {

        var di = enemy.dropItems[j];

        if (di.kind > 0) {

            var item = Game_Enemy.prototype.itemObject(di.kind, di.dataId);

            this.drawItemName(item, x, y, rewardsWidth);

            y += lineHeight;

        }

    }



    var descWidth = 480;

    x = this.contents.width - descWidth;

    y = this.textPadding() + lineHeight * 7;

    this.drawTextEx(enemy.meta.desc1, x, y + lineHeight * 0, descWidth);

    this.drawTextEx(enemy.meta.desc2, x, y + lineHeight * 1, descWidth);

};



Window_MenuCommand.prototype.addOriginalCommands = function() {

    this.addCommand('Bestiary', 'bestiary', true);

}



Scene_Menu.prototype.createCommandWindow = function() {

    this._commandWindow = new Window_MenuCommand(0, 0);

    this._commandWindow.setHandler('item',      this.commandItem.bind(this));

    this._commandWindow.setHandler('skill',     this.commandPersonal.bind(this));

    this._commandWindow.setHandler('equip',     this.commandPersonal.bind(this));

    this._commandWindow.setHandler('status',    this.commandPersonal.bind(this));

    this._commandWindow.setHandler('formation', this.commandFormation.bind(this));

    this._commandWindow.setHandler('bestiary',  this.commandBestiary.bind(this));

    this._commandWindow.setHandler('options',   this.commandOptions.bind(this));

    this._commandWindow.setHandler('save',      this.commandSave.bind(this));

    this._commandWindow.setHandler('gameEnd',   this.commandGameEnd.bind(this));

    this._commandWindow.setHandler('cancel',    this.popScene.bind(this));

    this.addWindow(this._commandWindow);

}



Scene_Menu.prototype.commandBestiary = function() {

    SceneManager.push(Scene_EnemyBook);

}