/*:
 * @plugindesc Allows developers to add movement to the two backgrounds within battles.
 * @author SumRndmDde
 * @help
 *
 * Battle Background Scroll
 * Version 1.00
 * SumRndmDde
 *
 *
 * This plugin allows the backgrounds within battles to scroll in both the 
 * X and Y directions during a battle.
 *
 *
 * ==============================================================================
 *  Troop Notetags
 * ==============================================================================
 *
 * In order to set scrolling to a troop's battle backgrounds, you can use
 * the following notetags within the Troop's NAME section:
 *
 *   <back1-speed: [xspeed], [yspeed]>
 *   <back2-speed: [xspeed], [yspeed]>
 *
 * Using these, you can set both X and Y Speeds to the Backgrounds 1 and 2
 * of the battle.
 *
 *
 * For example:
 *
 *   Bat*2  <back1-speed: 4, 0> <back1-speed: 0, -3>
 *
 *
 * ==============================================================================
 *  Plugin Commands
 * ==============================================================================
 *
 * You can also use the following Plugin Command to change the speed of
 * the battle backgrounds in the middle of the background:
 *
 *   SetBattleBack1ScrollSpeed [xspeed] [yspeed]
 *   SetBattleBack2ScrollSpeed [xspeed] [yspeed]
 *
 * These Plugin Commands are pretty simple. You can use them to manipulate
 * the Battle Backgrounds 1 and 2 respectively. Simply set "xspeed" and
 * "yspeed" to the X and Y Speeds you wish to use.
 *
 *
 * For example:
 *
 *   SetBattleBack1ScrollSpeed 3 6
 *   SetBattleBack2ScrollSpeed 0 -10
 *
 *
 * ==============================================================================
 *  End of Help File
 * ==============================================================================
 * 
 * Welcome to the bottom of the Help file.
 *
 *
 * Thanks for reading!
 * If you have questions, or if you enjoyed this Plugin, please check
 * out my YouTube channel!
 *
 * https://www.youtube.com/c/SumRndmDde
 *
 *
 * Until next time,
 *   ~ SumRndmDde
 */
/*:ja
 * @plugindesc 戦闘背景をX方向とY方向の両方にスクロールできます。
 * @author SumRndmDde
 * @help
 * 翻訳:ムノクラ
 * https://fungamemake.com/
 * https://twitter.com/munokura/
 *
 * 元プラグイン: http://sumrndm.site/battle-back-scroll/
 *
 *
 * Battle Background Scroll
 * Version 1.00
 * SumRndmDde
 *
 *
 * 戦闘中に戦闘背景をX方向とY方向の両方にスクロールできます。
 *
 *
 * ==========================================================================
 *  敵グループのメモタグ
 * ==========================================================================
 *
 * スクロールを敵グループの戦闘背景に設定するには、
 * 敵グループの名前欄内に以下のメモタグを使用します。
 *
 *   <back1-speed: [xspeed], [yspeed]>
 *   <back2-speed: [xspeed], [yspeed]>
 * これらを使用して、戦闘背景1と背景2にXとYの速度を設定することができます。
 *
 * 例:
 *
 *   Bat*2  <back1-speed: 4, 0> <back2-speed: 0, -3>
 *
 *
 * ==========================================================================
 *  プラグインコマンド
 * ==========================================================================
 *
 * 以下のプラグインコマンドを使用して、
 * 背景の真ん中にある戦闘背景の速度を変更することができます。
 *
 *   SetBattleBack1ScrollSpeed [xspeed] [yspeed]
 *   SetBattleBack2ScrollSpeed [xspeed] [yspeed]
 *
 * これらのプラグインコマンドはとてもシンプルです。
 * これらのコマンドを使って、戦闘背景1と2をそれぞれ操作することができます。
 * 'xspeed'と'yspeed'に、使いたいXとYの速度を設定します。
 *
 * 例:
 *
 *   SetBattleBack1ScrollSpeed 3 6
 *   SetBattleBack2ScrollSpeed 0 -10
 *
 *
 * ==========================================================================
 *  ヘルプファイルの終わり
 * ==========================================================================
 *
 * ヘルプファイルの終わりへようこそ。
 *
 * 読んでくれてありがとう!
 * 質問があったり、このプラグインを楽しめたら、
 * 私のYouTubeチャンネルを登録してください!!
 *
 * https://www.youtube.com/c/SumRndmDde
 *
 *
 * 次の機会まで
 *   ~ SumRndmDde
 */

var SRD = SRD || {};
SRD.BattleBackScroll = SRD.BattleBackScroll || {};

var Imported = Imported || {};
Imported["SumRndmDde Battle Back Scroll"] = 1.00;

(function (_) {

	"use strict";

	//-----------------------------------------------------------------------------
	// SRD.BattleBackScroll
	//-----------------------------------------------------------------------------

	_.loadNotetags = function () {
		const back1 = /<back1-speed\s*:\s*(.+)\s*,\s*(.+)\s*>/i;
		const back2 = /<back2-speed\s*:\s*(.+)\s*,\s*(.+)\s*>/i;
		for (let i = 1; i < $dataTroops.length; i++) {
			const troop = $dataTroops[i];
			if (!troop) continue;
			if (troop.name.match(back1)) {
				const xSpeed = parseInt(RegExp.$1);
				const ySpeed = parseInt(RegExp.$2);
				troop._battleBack1XSpeed = xSpeed;
				troop._battleBack1YSpeed = ySpeed;
			} else {
				troop._battleBack1XSpeed = 0;
				troop._battleBack1YSpeed = 0;
			}
			if (troop.name.match(back2)) {
				const xSpeed = parseInt(RegExp.$1);
				const ySpeed = parseInt(RegExp.$2);
				troop._battleBack2XSpeed = xSpeed;
				troop._battleBack2YSpeed = ySpeed;
			} else {
				troop._battleBack2XSpeed = 0;
				troop._battleBack2YSpeed = 0;
			}
		}
	};

	//-----------------------------------------------------------------------------
	// DataManager
	//-----------------------------------------------------------------------------

	let notetagsLoaded = false;
	const _DataManager_isDatabaseLoaded = DataManager.isDatabaseLoaded;
	DataManager.isDatabaseLoaded = function () {
		if (!_DataManager_isDatabaseLoaded.apply(this, arguments)) return false;
		if (!notetagsLoaded) {
			_.loadNotetags();
			notetagsLoaded = true;
		}
		return true;
	};

	//-----------------------------------------------------------------------------
	// Game_Temp
	//-----------------------------------------------------------------------------

	const _Game_Temp_initialize = Game_Temp.prototype.initialize;
	Game_Temp.prototype.initialize = function () {
		_Game_Temp_initialize.apply(this, arguments);
		this._battleBack1XSpeed = 0;
		this._battleBack1YSpeed = 0;
		this._battleBack2XSpeed = 0;
		this._battleBack2YSpeed = 0;
	};

	Game_Temp.prototype.hasBattleBackgroundSpeed = function (id) {
		if (id === 1) {
			return !(this._battleBack1XSpeed === 0 && this._battleBack1YSpeed === 0);
		} else if (id === 2) {
			return !(this._battleBack2XSpeed === 0 && this._battleBack2YSpeed === 0);
		}
	};

	Game_Temp.prototype.getBattleBackXSpeed = function (id) {
		return (id === 1) ? this._battleBack1XSpeed : this._battleBack2XSpeed;
	};

	Game_Temp.prototype.getBattleBackYSpeed = function (id) {
		return (id === 1) ? this._battleBack1YSpeed : this._battleBack2YSpeed;
	};

	//-----------------------------------------------------------------------------
	// Game_Troop
	//-----------------------------------------------------------------------------

	const _Game_Troop_setup = Game_Troop.prototype.setup;
	Game_Troop.prototype.setup = function (troopId) {
		_Game_Troop_setup.apply(this, arguments);
		const troop = this.troop();
		$gameTemp._battleBack1XSpeed = troop._battleBack1XSpeed;
		$gameTemp._battleBack1YSpeed = troop._battleBack1YSpeed;
		$gameTemp._battleBack2XSpeed = troop._battleBack2XSpeed;
		$gameTemp._battleBack2YSpeed = troop._battleBack2YSpeed;
	};

	//-----------------------------------------------------------------------------
	// Game_Interpreter
	//-----------------------------------------------------------------------------

	const _Game_Interpreter_pluginCommand = Game_Interpreter.prototype.pluginCommand;
	Game_Interpreter.prototype.pluginCommand = function (command, args) {
		_Game_Interpreter_pluginCommand.apply(this, arguments);
		if (command.trim().toLowerCase() === 'setbattleback1scrollspeed') {
			const xSpeed = parseInt(args[0]);
			const ySpeed = parseInt(args[1]);
			$gameTemp._battleBack1XSpeed = xSpeed;
			$gameTemp._battleBack1YSpeed = ySpeed;
		}
		if (command.trim().toLowerCase() === 'setbattleback2scrollspeed') {
			const xSpeed = parseInt(args[0]);
			const ySpeed = parseInt(args[1]);
			$gameTemp._battleBack2XSpeed = xSpeed;
			$gameTemp._battleBack2YSpeed = ySpeed;
		}
	};

	//-----------------------------------------------------------------------------
	// Spriteset_Battle
	//-----------------------------------------------------------------------------

	const _Spriteset_Battle_update = Spriteset_Battle.prototype.update;
	Spriteset_Battle.prototype.update = function () {
		_Spriteset_Battle_update.apply(this, arguments);
		if ($gameTemp.hasBattleBackgroundSpeed(1)) {
			this._back1Sprite.origin.x += $gameTemp.getBattleBackXSpeed(1);
			this._back1Sprite.origin.y += $gameTemp.getBattleBackYSpeed(1);
		}
		if ($gameTemp.hasBattleBackgroundSpeed(2)) {
			this._back2Sprite.origin.x += $gameTemp.getBattleBackXSpeed(2);
			this._back2Sprite.origin.y += $gameTemp.getBattleBackYSpeed(2);
		}
	};

})(SRD.BattleBackScroll);