/*:
 * @plugindesc Gives the camera of your game smoother motion during gameplay and specific camera motions.
 * @author SumRndmDde
 *
 * @param Delay Power
 * @desc A numerical value used to create the delay of the camera to the target's movement. The higher the value, the greater the delay.
 * @default 5
 *
 * @param Cut Off Value
 * @desc Once the camera reaches this distance, it jumps straight to the target; reduces stuttering.
 * @default 0.02
 *
 * @help
 *
 * Smooth Camera
 * Version 1.02
 * SumRndmDde
 *
 *
 * This plugin requires the Camera Core plugin:
 * http://sumrndm.site/camera-core/
 *
 * This plugin gives the camera of your game smoother motion during gameplay 
 * and specific camera motions.
 *
 *
 * ==============================================================================
 *  Plugin Commands
 * ==============================================================================
 *
 * The following plugin command can be used to change the "Delay Power" of the
 * camera:
 *
 *
 *   SetDelayPower [value]
 *
 * Set "value" to a number (preferably around 1 to 10) to customize the delay
 * of the camera.
 *
 *
 * ==============================================================================
 *  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 カメラにスムーズな遅延の動きを加えます。
 * @author SumRndmDde
 *
 * @param Delay Power
 * @text 遅延時間
 * @desc 対象の動きに対するカメラの遅延時間を表す数値。値が大きいほど遅延が大きくなります。
 * @default 5
 *
 * @param Cut Off Value
 * @text カットオフ値
 * @desc この距離に達すると、カメラはまっすぐに対象にジャンプし、スムーズにします。
 * @default 0.02
 *
 * @help
 * 翻訳:ムノクラ
 * https://fungamemake.com/
 * https://twitter.com/munokura/
 *
 * 元プラグイン: http://sumrndm.site/smooth-camera/
 *
 *
 * Smooth Camera
 * Version 1.02
 * SumRndmDde
 *
 *
 * このプラグインを使用するには、SRD_CameraCoreプラグインが必要です。
 * http://sumrndm.site/camera-core/
 *
 * カメラにスムーズな遅延の動きを加えます。
 *
 *
 * ==========================================================================
 *  プラグインコマンド
 * ==========================================================================
 *
 * 以下のプラグインコマンドでカメラの'Delay Power'を変更します。
 *
 *   SetDelayPower [value]
 *
 * [value]を数値(好ましくは1～10程度)に設定して、
 * カメラの遅延をカスタマイズします。
 *
 *
 * ==========================================================================
 *  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.SmoothCamera = SRD.SmoothCamera || {};

var Imported = Imported || {};
Imported["SumRndmDde Smooth Camera"] = 1.02;

(function (_) {

	"use strict";

	//-----------------------------------------------------------------------------
	// SRD.SmoothCamera
	//-----------------------------------------------------------------------------

	const params = PluginManager.parameters('SRD_SmoothCamera');

	_.meetsRequirements = Imported["SumRndmDde Camera Core"];
	_.cutOff = parseFloat(params['Cut Off Value']);
	_.power = parseFloat(0.01 / parseFloat(params['Delay Power']));

	_.alertNeedCameraCore = function () {
		alert("The 'SRD_CameraCore' plugin is required for using the 'SRD_SmoothCamera' plugin.");
		if (confirm("Do you want to open the download page to 'SRD_CameraCore'?")) {
			window.open('http://sumrndm.site/camera-core/');
		}
	};

	if (!_.meetsRequirements) {
		_.alertNeedCameraCore();
	}

	//-----------------------------------------------------------------------------
	// Game_Map
	//-----------------------------------------------------------------------------

	_.Game_Map_initialize = Game_Map.prototype.initialize;
	Game_Map.prototype.initialize = function () {
		_.Game_Map_initialize.apply(this, arguments);
		this._currentFocusEvent = $gameScreen.focusEvent;
		this.shiftX = 0;
		this.shiftY = 0;
	};

	_.Game_Map_setDisplayPosStart = Game_Map.prototype.setDisplayPosStart;
	Game_Map.prototype.setDisplayPosStart = function (x, y, dur) {
		if (this._currentFocusEvent !== $gameScreen.focusEvent || this._currentFocusEvent === null) {
			this._currentFocusEvent = $gameScreen.focusEvent;
			_.Game_Map_setDisplayPosStart.apply(this, arguments);
		}
	};

	_.Game_Map_updateScroll = Game_Map.prototype.updateScroll;
	Game_Map.prototype.updateScroll = function () {
		if ($gameMap.isCameraScrolling()) {
			_.Game_Map_updateScroll.apply(this, arguments);
		}
	};

	_.Game_CharacterBase_centerCamera = Game_CharacterBase.prototype.centerCamera;
	Game_CharacterBase.prototype.centerCamera = function (dur) {
		$gameMap.shiftX = 0;
		$gameMap.shiftY = 0;
		return _.Game_CharacterBase_centerCamera.apply(this, arguments);
	};

	Game_Map.prototype.shiftCameraPosition = function (x, y, dur) {
		$gameMap.shiftX = x;
		$gameMap.shiftY = y;
	};

	//-----------------------------------------------------------------------------
	// Game_Character
	//-----------------------------------------------------------------------------

	_.Game_Character_updateScroll = Game_Character.prototype.updateScroll;
	Game_Character.prototype.updateScroll = function () {
		if (!$gameMap.isCameraScrolling()) {
			const cut = _.cutOff;
			const xSpeed = Math.floor(this.screenX() + ($gameMap.shiftX * 48) - $gameScreen.zoomX()) * _.power;
			const ySpeed = Math.floor(this.screenY() + ($gameMap.shiftY * 48) - $gameScreen.zoomY()) * _.power;
			if (xSpeed < -cut) {
				$gameMap.scrollLeft(-xSpeed);
			} else if (xSpeed > cut) {
				$gameMap.scrollRight(xSpeed);
			}
			if (ySpeed < -cut) {
				$gameMap.scrollUp(-ySpeed);
			} else if (ySpeed > cut) {
				$gameMap.scrollDown(ySpeed);
			}
			if (Math.abs(xSpeed) < cut && Math.abs(ySpeed) < cut) {
				this.centerCamera(0);
			}
		} else {
			_.Game_Character_updateScroll.apply(this, arguments);
		}
	};

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

	_.Game_Interpreter_pluginCommand = Game_Interpreter.prototype.pluginCommand;
	Game_Interpreter.prototype.pluginCommand = function (command, args) {
		_.Game_Interpreter_pluginCommand.apply(this, arguments);
		const com = command.trim().toLowerCase();
		if (com === 'setdelaypower') {
			_.power = parseInt(0.01 / parseFloat(args[0]));
		}
	};

})(SRD.SmoothCamera);