//=============================================================================
// OpeningDirect.js
// ----------------------------------------------------------------------------
// Copyright (c) 2018 nomaldog
// This software is released under the MIT License.
// http://opensource.org/licenses/mit-license.php
// ----------------------------------------------------------------------------
// Version
// 1.0.0 2018/04/07 初版
// ----------------------------------------------------------------------------
// [Twitter]: https://twitter.com/nomaldog/
//=============================================================================

/*:ja
 * メモ: イメージはimg／systemフォルダ内に保存されます。
 *
 * @plugindesc タイトル画面へ進む前のオープニング画面を演出します。このプラグインはMadeWithMvを元に作られています。
 * @author nomaldog(改造元：Dan "Liquidize" Deptula / MadeWithMv.js)
 *
 * @help  このプラグインにはプラグインコマンドはありません。
 *
 * @param File Names
 * @desc 使用する画像(","カンマ区切り)
 * デフォルト:MadeWithMv
 * @default MadeWithMv
 *
 * @param Fade Time
 * @desc 画像のフェードに要する時間（フレーム数）
 * デフォルト: 30
 * @default 30
 *
 * @param Wait Time
 * @desc 画像が表示された後に待つ時間（フレーム数）
 * デフォルト: 30
 * @default 30
 *
 * @param BGM
 * @desc 使用するBGM
 * デフォルト:Theme1
 * @default Theme1
 * @require 1
 * @dir audio/bgm/
 * @type file
 *
 */
var Liquidize = Liquidize || {};
Liquidize.OpeningDirect = {};
Liquidize.OpeningDirect.Parameters = PluginManager.parameters("OpeningDirect");

Liquidize.OpeningDirect.FileNames = String(
  Liquidize.OpeningDirect.Parameters["File Names"]
);
Liquidize.OpeningDirect.FadeTime =
  Number(Liquidize.OpeningDirect.Parameters["Fade Time"]) || 120;
Liquidize.OpeningDirect.WaitTime =
  Number(Liquidize.OpeningDirect.Parameters["Wait Time"]) || 160;
Liquidize.OpeningDirect.BGM = String(Liquidize.OpeningDirect.Parameters["BGM"]);

//-----------------------------------------------------------------------------
// Scene_Opening
//
// This is a constructor, implementation is done in the inner scope.

function Scene_Opening() {
  this.initialize.apply(this, arguments);
}

(function () {
  //-----------------------------------------------------------------------------
  // Scene_Boot
  //
  // The scene class for dealing with the game boot.

  var _Scene_Boot_loadSystemImages = Scene_Boot.prototype.loadSystemImages;
  Scene_Boot.prototype.loadSystemImages = function () {
    _Scene_Boot_loadSystemImages.call(this);
    this._FileNames.forEach(function (value) {
      ImageManager.loadSystem(value);
    });
  };

  var _Scene_Boot_start = Scene_Boot.prototype.start;
  Scene_Boot.prototype.start = function () {
    if (!DataManager.isBattleTest() && !DataManager.isEventTest()) {
      SceneManager.goto(Scene_Opening);
    } else {
      _Scene_Boot_start.call(this);
    }
  };

  //-----------------------------------------------------------------------------
  // Scene_Opening
  //
  // The scene class for dealing with the splash screens.

  Scene_Opening.prototype = Object.create(Scene_Base.prototype);
  Scene_Opening.prototype.constructor = Scene_Opening;

  Scene_Opening.prototype.initialize = function () {
    Scene_Base.prototype.initialize.call(this);
    this._Sheets = 0;
    this._Splash = [];
    this._FileNames = Liquidize.OpeningDirect.FileNames.split(",");
    this._FileNames.forEach(function (value) {
      this._Splash.push(new Sprite(ImageManager.loadSystem(value)));
      this.addChild(this._Splash[this._Sheets]);
      this._Splash[this._Sheets].alpha = 0;
      this._Sheets++;
    }, this);

    this._WaitTime = Liquidize.OpeningDirect.WaitTime;
    this._FadeTime = Liquidize.OpeningDirect.FadeTime;
    this._TotalTime =
      this._FadeTime * this._Sheets + this._WaitTime * this._Sheets;
    this._RemaininglTime = this._TotalTime;
    this._Bgm = {
      name: Liquidize.OpeningDirect.BGM, // ogg、m4aファイルをそれぞれ準備する
      pan: 0,
      pitch: 100,
      volume: 90,
    };
    this._LastWaiteMode = false;
    this._GoToTitle = false;
  };

  Scene_Opening.prototype.create = function () {
    Scene_Base.prototype.create.call(this);
  };

  Scene_Opening.prototype.start = function () {
    Scene_Base.prototype.start.call(this);
    SceneManager.clearStack();
    if (this._Splash != null) {
      this.centerSprite(this._Splash[0]);
    }
    AudioManager.playBgm(this._Bgm);
  };

  Scene_Opening.prototype.update = function () {
    if (!this._LastWaiteMode) {
      for (var i = 0; i < this._Sheets; i++) {
        var min_time = i * (this._FadeTime + this._WaitTime);
        var max_time = (i + 1) * (this._FadeTime + this._WaitTime);
        var past_time = this._TotalTime - this._RemaininglTime;
        if (max_time > past_time && past_time > min_time) {
          var alpha_rate = (past_time - min_time) / this._FadeTime;
          if (alpha_rate > 1.0) {
            alpha_rate = 1.0;
          }
          this._Splash[i].alpha = alpha_rate;
        }
      }
      if (this._RemaininglTime-- == 0) {
        this._LastWaiteMode = true;
        this._RemaininglTime += this._FadeTime + this._WaitTime;
        for (var i = 0; i < this._Sheets - 1; i++) {
          this._Splash[i].alpha = 0;
        }
      }
    } else {
      if (this._RemaininglTime-- == 0) {
        this._GoToTitle = true;
      } else {
        var alpha_rate =
          (this._RemaininglTime - this._WaitTime) / this._FadeTime;
        if (alpha_rate > 1.0) {
          alpha_rate = 1.0;
        }
        this._Splash[this._Sheets - 1].alpha = alpha_rate;
      }
    }

    if (this._GoToTitle || Input.isTriggered("ok")) {
      AudioManager.stopBgm();
      this.gotoTitleOrTest();
    }
    Scene_Base.prototype.update.call(this);
  };

  Scene_Opening.prototype.centerSprite = function (sprite) {
    sprite.x = Graphics.width / 2;
    sprite.y = Graphics.height / 2;
    sprite.anchor.x = 0.5;
    sprite.anchor.y = 0.5;
  };

  Scene_Opening.prototype.gotoTitleOrTest = function () {
    Scene_Base.prototype.start.call(this);
    SoundManager.preloadImportantSounds();
    if (DataManager.isBattleTest()) {
      DataManager.setupBattleTest();
      SceneManager.goto(Scene_Battle);
    } else if (DataManager.isEventTest()) {
      DataManager.setupEventTest();
      SceneManager.goto(Scene_Map);
    } else {
      this.checkPlayerLocation();
      DataManager.setupNewGame();
      SceneManager.goto(Scene_Title);
      Window_TitleCommand.initCommandPosition();
    }
    this.updateDocumentTitle();
  };

  Scene_Opening.prototype.updateDocumentTitle = function () {
    document.title = $dataSystem.gameTitle;
  };

  Scene_Opening.prototype.checkPlayerLocation = function () {
    if ($dataSystem.startMapId === 0) {
      throw new Error("Player's starting position is not set");
    }
  };
})();