//=============================================================================
// Yanfly Engine Plugins - Party System
// YEP_PartySystem.js
//=============================================================================

var Imported = Imported || {};
Imported.YEP_PartySystem = true;

var Yanfly = Yanfly || {};
Yanfly.Party = Yanfly.Party || {};
Yanfly.Party.version = 1.12;

//=============================================================================
/*:
* @plugindesc v1.12 Replaces the default 'Formation' command with a new
* menu for players to easily change party formations.
* @author Yanfly Engine Plugins
*
* @param ---General---
* @default
*
* @param Max Battle Members
* @desc Maximum amount of actors that can participate in battle.
* Default: 4
* @default 4
*
* @param Show Battle Command
* @desc Show the 'Formation' command in the Party Command Window?
* NO - false     YES - true
* @default true
*
* @param Enable Battle Command
* @desc Enable the 'Formation' command in the Party Command Window?
* NO - false     YES - true
* @default true
*
* @param Battle Cooldown
* @desc How many turns must the player wait after changing party?
* @default 1
*
* @param Maximum Followers
* @desc Maximum number of followers on the map.
* Default: 4
* @default 4
*
* @param EXP Distribution
* @desc Divide battle EXP gained across live members?
* NO - false     YES - true
* @default false
*
* @param ---Menu---
* @default
*
* @param Help Window
* @desc Show the Help Window in the party menu?
* NO - false     YES - true
* @default false
*
* @param Text Alignment
* @desc The text alignment for the command window.
* left     center     right
* @default center
*
* @param Change Command
* @desc How the 'Change' command appears in the command menu.
* Leave this blank to remove it.
* @default Change
*
* @param Remove Command
* @desc How the 'Remove' command appears in the command menu.
* Leave this blank to remove it.
* @default Remove
*
* @param Revert Command
* @desc How the 'Revert' command appears in the command menu.
* Leave this blank to remove it.
* @default Revert
*
* @param Finish Command
* @desc How the 'Finish' command appears in the command menu.
* Leave this blank to remove it.
* @default Finish
*
* @param ---Selection---
* @default
*
* @param Empty Text
* @desc What text to display in an empty party slot.
* @default - Empty -
*
* @param Actor Face
* @desc Show the actor's face?
* NO - false     YES - true
* @default true
*
* @param Actor Sprite
* @desc Show the actor's sprite?
* NO - false     YES - true
* @default true
*
* @param ---List---
* @default
*
* @param Remove Icon
* @desc The icon used to display next to the "Remove" command in the
* party member list.
* @default 16
*
* @param Show Sprite
* @desc Show the actor sprite on the list?
* YES - true     NO - false
* @default true
*
* @param Sprite Y Buffer
* @desc This is the amount to adjust the actor graphic by.
* @default 16
*
* @param In Party Text Color
* @desc This is the text color to be used if the actor is currently
* in the party.
* @default 6
*
* @param ---Locking---
* @default
*
* @param Lock First Actor
* @desc Allows you to lock the first actor in the game by default.
* OFF - false     ON - true
* @default false
*
* @param Locked Icon
* @desc This sets what icon to be used when an actor is locked.
* @default 195
*
* @param Required Icon
* @desc This sets what icon to be used when an actor is required.
* @default 205
*
* @param ---Detail Window---
* @default
*
* @param Enable Detail Window
* @desc Make use of the detailed party window next to the list.
* NO - false     YES - true
* @default true
*
* @param List Width
* @desc If detail window is enabled, what is the width of the
* party list window?
* @default 300
*
* @param Actor Parameters
* @desc If there is enough room, this is the text shown to list
* the actor's parameters.
* @default Parameters
*
* @param Actor Equipment
* @desc If there is enough room, this is the text shown to list
* the actor's equipment.
* @default Equipment
*
* @help
* ============================================================================
* Introduction
* ============================================================================
*
* This plugin replaces the "Formation" command found in the in-game menu with
* a new scene where the player can adjust the party he or she wants in a more
* comfortable way.
*
* If you are using YEP_BattleEngineCore.js and would like to enable party
* switching mid-battle, place this plugin under YEP_BattleEngineCore.js in
* the plugin's list.
*
* This plugin is plug and play. All you have to do is just turn it on and
* change the parameters to your liking.
*
* ============================================================================
* Plugin Commands
* ============================================================================
*
* Here are some plugin commands you can use!
*
* Plugin Command:
*   OpenPartyMenu     Opens up the Party Menu from the field.
*
* Actors can also be required, meaning the player must have that actor(s) in
* the party before the player is able to leave the party menu. Required actors
* can be moved around, unlike locked actors. Keep in mind if you do make some
* actors required, do not make the game require more actors than the possible
* maximum battle members or else the player will be stuck in the party menu.
*
* Plugin Command:
*   ShowBattleFormation    - Shows 'Formation' command in battle.
*   HideBattleFormation    - Hides 'Formation' command in battle.
*   EnableBattleFormation  - Enables 'Formation' command in battle.
*   DisableBattleFormation - Disables 'Formation' command in battle.
*
*   LockActor 3          - Locks actor 3.
*   LockActor 4 5 6      - Locks actors 4, 5, and 6.
*   UnlockActor 3        - Unlocks actor 3.
*   UnlockActor 4 5 6    - Unlocks actors 4, 5, and 6.
*                        * Locked Actors cannot be moved out of their current
*                          position and must be in the party.
*
*   RequireActor 3       - Player must have actor 3 in party.
*   RequireActor 4 5 6   - Player must have actors 4, 5, and 6 in party.
*   UnrequireActor 3     - Player no longer needs actor 3 in party.
*   UnrequireActor 4 5 6 - Player no longer needs actors 4, 5, and 6 in party.
*                        * Required Actors must be in the party in order for
*                          the player to be able to exit the party menu.
*
*   ChangePartyMax 5     - Changes max party size to 5.
*
* ============================================================================
* Changelog
* ============================================================================
*
* Version 1.12:
* - Functions updated to maintain compatibility.
*
* Version 1.11:
* - 'Show Sprite' plugin parameter added for those who would wish to show/hide
* the sprites in the list on the left side of the menu.
* - Change for 'Remove Icon' plugin parameter: if the icon ID used here is 0,
* an icon will not be drawn at all and the text will be realigned to the left.
* - Game now refreshes all battlers upon reentry into the battle after
* entering and leaving the Party change menu mid-battle.
*
* Version 1.10:
* - Optimization update.
*
* Version 1.09:
* - Fixed a bug that caused party members to not index themselves properly in
* battle. When in battle, actor index will now refer to the index of their
* battle member positions.
*
* Version 1.08:
* - Added 'EXP Distribution' parameter into the plugin parameters. Enabling
* this will cause the EXP distributed to party members to be divided based on
* the number of alive members at the end of battle.
*
* Version 1.07:
* - Fixed a bug that caused music to not replay properly when accessing the
* Party change menu from battle.
*
* Version 1.06:
* - Fixed a bug with certain actors not drawing properly.
* 
* Version 1.05:
* - Added 'Maximum Followers' parameter. This number should be the maximum
* number you have in your game if you ever increase the maximum party size
* midway through your game.
*
* Version 1.04:
* - Fixed a visual bug with mid-battle formation changing against backgrounds
* without battlebacks.
* - Formation changes during mid-battle will resume bgm/bgs currently played.
*
* Version 1.03:
* - Fixed a bug that would cause AutoBattlers to stall if they got added into
* the party mid-battle.
*
* Version 1.02:
* - Made a change so that the number of followers updates properly when you
* increase the maximum number of battle members.
*
* Version 1.01:
* - Added 'Battle Cooldown' plugin parameter.
* - Added 'ChangePartyMax x' plugin command.
* - Added feature where if you leave the class comand name empty, it will
* remove the command.
*
* Version 1.00:
* - Finished Plugin!
*/
//=============================================================================

//=============================================================================
// Parameter Variables
//=============================================================================

Yanfly.Parameters = PluginManager.parameters('YEP_PartySystem');
Yanfly.Param = Yanfly.Param || {};
Yanfly.Icon = Yanfly.Icon || {};

Yanfly.Param.MaxBattleMembers = Number(Yanfly.Parameters['Max Battle Members']);
Yanfly.Param.PartyShowBattle = String(Yanfly.Parameters['Show Battle Command']);
Yanfly.Param.PartyShowBattle = eval(Yanfly.Param.PartyShowBattle);
Yanfly.Param.PartyEnBattle = String(Yanfly.Parameters['Enable Battle Command']);
Yanfly.Param.PartyEnBattle = eval(Yanfly.Param.PartyEnBattle);
Yanfly.Param.PartyCooldown = Number(Yanfly.Parameters['Battle Cooldown']);
Yanfly.Param.PartyMaxFollower = Number(Yanfly.Parameters['Maximum Followers']);
Yanfly.Param.ParamExpDis = eval(String(Yanfly.Parameters['EXP Distribution']));

Yanfly.Param.PartyHelpWindow = String(Yanfly.Parameters['Help Window']);
Yanfly.Param.PartyHelpWindow = eval(Yanfly.Param.PartyHelpWindow);
Yanfly.Param.PartyTextAlign = String(Yanfly.Parameters['Text Alignment']);
Yanfly.Param.PartyCommand1 = String(Yanfly.Parameters['Change Command']);
Yanfly.Param.PartyCommand2 = String(Yanfly.Parameters['Remove Command']);
Yanfly.Param.PartyCommand3 = String(Yanfly.Parameters['Revert Command']);
Yanfly.Param.PartyCommand4 = String(Yanfly.Parameters['Finish Command']);

Yanfly.Param.PartyEmptyText = String(Yanfly.Parameters['Empty Text']);
Yanfly.Param.PartyShowFace = String(Yanfly.Parameters['Actor Face']);
Yanfly.Param.PartyShowFace = eval(Yanfly.Param.PartyShowFace);
Yanfly.Param.PartyShowCharacter = String(Yanfly.Parameters['Actor Sprite']);
Yanfly.Param.PartyShowCharacter = eval(Yanfly.Param.PartyShowCharacter);

Yanfly.Icon.PartyRemove = Number(Yanfly.Parameters['Remove Icon']);
Yanfly.Param.PartyShowListSprite = String(Yanfly.Parameters['Show Sprite']);
Yanfly.Param.PartyShowListSprite = eval(Yanfly.Param.PartyShowListSprite);
Yanfly.Param.PartySpriteBufferY = Number(Yanfly.Parameters['Sprite Y Buffer']);
Yanfly.Param.ColorInParty = Number(Yanfly.Parameters['In Party Text Color']);

Yanfly.Param.PartyLockFirst = String(Yanfly.Parameters['Lock First Actor']);
Yanfly.Param.PartyLockFirst = eval(Yanfly.Param.PartyLockFirst);
Yanfly.Icon.PartyLocked = Number(Yanfly.Parameters['Locked Icon']);
Yanfly.Icon.PartyRequired = Number(Yanfly.Parameters['Required Icon']);

Yanfly.Param.PartyDetailWin = String(Yanfly.Parameters['Enable Detail Window']);
Yanfly.Param.PartyDetailWin = eval(Yanfly.Param.PartyDetailWin);
Yanfly.Param.PartyListWidth = Number(Yanfly.Parameters['List Width']);
Yanfly.Param.PartyDetailParam = String(Yanfly.Parameters['Actor Parameters']);
Yanfly.Param.PartyDetailEquip = String(Yanfly.Parameters['Actor Equipment']);

//=============================================================================
// BattleManager
//=============================================================================

if (Yanfly.Param.ParamExpDis) {

  Yanfly.Party.BattleManager_gainExp = BattleManager.gainExp;
  BattleManager.gainExp = function () {
    var alive = $gameParty.aliveMembers().length;
    this._rewards.exp = Math.ceil(this._rewards.exp / alive);
    Yanfly.Party.BattleManager_gainExp.call(this);
  };

}; // Yanfly.Param.ParamExpDis

//=============================================================================
// Game_Temp
//=============================================================================

Game_Temp.prototype.hasStoredBattleSpriteset = function () {
  return this._battleSpriteset;
};

Game_Temp.prototype.storeBattleSpriteset = function () {
  this._battleSpriteset = SceneManager._scene._spriteset;
};

Game_Temp.prototype.restoreBattleSpriteset = function () {
  if (this._battleSpriteset) {
    SceneManager._scene._spriteset = this._battleSpriteset;
    SceneManager._scene.addChild(SceneManager._scene._spriteset);
    this._battleSpriteset = undefined;
  }
};

//=============================================================================
// Game_System
//=============================================================================

Yanfly.Party.Game_System_initialize = Game_System.prototype.initialize;
Game_System.prototype.initialize = function () {
  Yanfly.Party.Game_System_initialize.call(this);
  this.initPartySettings();
};

Game_System.prototype.initPartySettings = function () {
  this._showBattleFormation = Yanfly.Param.PartyShowBattle;
  this._battleFormationEnabled = Yanfly.Param.PartyEnBattle;
};

Game_System.prototype.isShowBattleFormation = function () {
  if (this._showBattleFormation === undefined) this.initPartySettings();
  return this._showBattleFormation;
};

Game_System.prototype.setShowBattleFormation = function (value) {
  if (this._showBattleFormation === undefined) this.initPartySettings();
  this._showBattleFormation = value;
};

Game_System.prototype.isBattleFormationEnabled = function () {
  if (this._battleFormationEnabled === undefined) this.initPartySettings();
  if (this._battleFormationCooldown === undefined) {
    this.resetBattleFormationCooldown();
  }
  if (this._battleFormationCooldown > 0) return false;
  return this._battleFormationEnabled;
};

Game_System.prototype.setBattleFormationEnabled = function (value) {
  if (this._battleFormationEnabled === undefined) this.initPartySettings();
  this._battleFormationEnabled = value;
};

Game_System.prototype.resetBattleFormationCooldown = function () {
  this._battleFormationCooldown = 0;
};

Game_System.prototype.updateBattleFormationCooldown = function () {
  if (this._battleFormationCooldown === undefined) {
    this.resetBattleFormationCooldown();
  }
  this._battleFormationCooldown--;
};

Game_System.prototype.setBattleFormationCooldown = function () {
  this._battleFormationCooldown = Yanfly.Param.PartyCooldown;
};

//=============================================================================
// Game_Actor
//=============================================================================

Yanfly.Party.Game_Actor_setup = Game_Actor.prototype.setup;
Game_Actor.prototype.setup = function (actorId) {
  Yanfly.Party.Game_Actor_setup.call(this, actorId);
  this.initLocked();
};

Game_Actor.prototype.initLocked = function () {
  this._locked = false;
  this._required = false;
};

Yanfly.Party.Game_Actor_isFormationChangeOk =
  Game_Actor.prototype.isFormationChangeOk;
Game_Actor.prototype.isFormationChangeOk = function () {
  if (this._locked) return false;
  return Yanfly.Party.Game_Actor_isFormationChangeOk.call(this);
};

Yanfly.Party.Game_Actor_index = Game_Actor.prototype.index;
Game_Actor.prototype.index = function () {
  if ($gameParty.inBattle()) {
    return $gameParty.battleMembers().indexOf(this);
  } else {
    return Yanfly.Party.Game_Actor_index.call(this);
  }
  return $gameParty.members().indexOf(this);
};

//=============================================================================
// Game_Party
//=============================================================================

Yanfly.Party.Game_Party_initialize = Game_Party.prototype.initialize;
Game_Party.prototype.initialize = function () {
  Yanfly.Party.Game_Party_initialize.call(this);
  this.initBattleMaxSize();
  this.initializeBattleMembers();
};

Game_Party.prototype.initBattleMaxSize = function () {
  this._BattleMaxSize = Yanfly.Param.MaxBattleMembers;
  this.initializeBattleMembers();
};

Game_Party.prototype.changeBattleMax = function (value) {
  this._BattleMaxSize = value;
  this.initializeBattleMembers();
};

Game_Party.prototype.loadActorImages = function () {
  for (var i = 0; i < this.members().length; ++i) {
    var actor = this.members()[i];
    if (!actor) continue;
    ImageManager.loadFace(actor.faceName());
    ImageManager.loadCharacter(actor.characterName());
  }
};

Game_Party.prototype.battleMembers = function () {
  if (this.toInitializeBattleMembers()) this.initializeBattleMembers();
  var battleParty = [];
  for (var i = 0; i < this._battleMembers.length; ++i) {
    var actorId = this._battleMembers[i];
    if (battleParty.length > this.maxBattleMembers()) break;
    if (actorId === null) continue;
    if (!$gameActors.actor(actorId)) continue;
    if (!$gameActors.actor(actorId).isAppeared()) continue;
    battleParty.push($gameActors.actor(actorId));
  }
  return battleParty;
};

Game_Party.prototype.maxBattleMembers = function () {
  if (this._BattleMaxSize === undefined) this.initBattleMaxSize();
  return Math.max(this._BattleMaxSize, 1);
};

Yanfly.Party.Game_Party_setupStartingMembers =
  Game_Party.prototype.setupStartingMembers;
Game_Party.prototype.setupStartingMembers = function () {
  Yanfly.Party.Game_Party_setupStartingMembers.call(this);
  this.initializeBattleMembers();
  if (Yanfly.Param.PartyLockFirst) this.lockActor(this._actors[0]);
};

Game_Party.prototype.toInitializeBattleMembers = function () {
  if (this._battleMembers === null) return true;
  if (!this._battleMembers) this.initializeBattleMembers();
  return (this._battleMembers.length !== this.maxBattleMembers());
};

Yanfly.Party.Game_Party_setupBattleTestMembers =
  Game_Party.prototype.setupBattleTestMembers;
Game_Party.prototype.setupBattleTestMembers = function () {
  Yanfly.Party.Game_Party_setupBattleTestMembers.call(this);
  if (Yanfly.Param.PartyLockFirst) this.lockActor(this._actors[0]);
  for (var i = 0; i < $dataActors.length; ++i) {
    var actor = $dataActors[i];
    if (!actor) continue;
    if (this._battleMembers.contains(actor.id)) continue;
    this._actors.push(actor.id);
  }
  this.loadActorImages();
};

Game_Party.prototype.initializeBattleMembers = function () {
  this._battleMembers = [];
  for (var i = 0; i < this.maxBattleMembers(); ++i) {
    if (this._actors[i]) {
      this._battleMembers.push(this._actors[i]);
    } else {
      this._battleMembers.push(0);
    }
  }
  if ($gamePlayer) $gamePlayer.refresh();
};

Yanfly.Party.Game_Party_addActor = Game_Party.prototype.addActor;
Game_Party.prototype.addActor = function (actorId) {
  Yanfly.Party.Game_Party_addActor.call(this, actorId);
  if (this._battleMembers.contains(actorId)) return;
  if (!this._battleMembers.contains(0)) return;
  var index = this._battleMembers.indexOf(0);
  this._battleMembers[index] = actorId;
  $gamePlayer.refresh();
  $gameMap.requestRefresh();
  this.rearrangeActors();
};

Yanfly.Party.Game_Party_removeActor = Game_Party.prototype.removeActor;
Game_Party.prototype.removeActor = function (actorId) {
  Yanfly.Party.Game_Party_removeActor.call(this, actorId);
  if (!this._battleMembers.contains(actorId)) return;
  var index = this._battleMembers.indexOf(actorId);
  this._battleMembers[index] = 0;
  $gamePlayer.refresh();
  $gameMap.requestRefresh();
  this.rearrangeActors();
};

Game_Party.prototype.rearrangeActors = function () {
  if (this._battleMembers === null) this.initializeBattleMembers();
  var battleArray = [];
  for (var i = 0; i < this._battleMembers.length; ++i) {
    var actorId = this._battleMembers[i];
    if (actorId === null) continue;
    if ($gameActors.actor(actorId)) battleArray.push(actorId);
  }
  var reserveArray = [];
  for (var i = 0; i < this._actors.length; ++i) {
    var actorId = this._actors[i];
    if (battleArray.contains(actorId)) continue;
    if ($gameActors.actor(actorId) === null) continue;
    reserveArray.push(actorId);
  }
  reserveArray = this.sortReserveParty(reserveArray);
  this._actors = battleArray.concat(reserveArray);
};

Game_Party.prototype.sortReserveParty = function (party) {
  party.sort(function (a, b) { return a - b; });
  return party;
};

Game_Party.prototype.lockActor = function (actorId) {
  var actor = $gameActors.actor(actorId);
  if (actor) actor._locked = true;
};

Game_Party.prototype.reconstructActions = function (actorId) {
  for (var i = 0; i < this.members().length; ++i) {
    var member = this.members()[i];
    if (!member) continue;
    if (member.currentAction() && member.currentAction().item()) continue;
    member.makeActions();
  }
};

Yanfly.Party.Game_Party_swapOrder = Game_Party.prototype.swapOrder;
Game_Party.prototype.swapOrder = function (index1, index2) {
  this.swapOrderBattleMembers(index1, index2);
  Yanfly.Party.Game_Party_swapOrder.call(this, index1, index2);
  this.rearrangeActors();
  $gamePlayer.refresh();
};

Game_Party.prototype.swapOrderBattleMembers = function (index1, index2) {
  var bm = this._battleMembers;
  if (bm.length > index1 && bm.length > index2) {
    var actorId1 = this._battleMembers[index1];
    var actorId2 = this._battleMembers[index2];
  } else if (bm.length > index1) {
    var actorId1 = this._battleMembers[index1];
    var actorId2 = this._actors[index2];
  } else if (bm.length > index2) {
    var actorId1 = this._actors[index1];
    var actorId2 = this._battleMembers[index2];
  }
  if (bm.length > index1) this._battleMembers[index1] = actorId2;
  if (bm.length > index2) this._battleMembers[index2] = actorId1;
};

//=============================================================================
// Game_Troop
//=============================================================================

Yanfly.Party.Game_Troop_increaseTurn = Game_Troop.prototype.increaseTurn;
Game_Troop.prototype.increaseTurn = function () {
  Yanfly.Party.Game_Troop_increaseTurn.call(this);
  $gameSystem.updateBattleFormationCooldown();
};

//=============================================================================
// Game_Player
//=============================================================================

Game_Followers.prototype.initialize = function () {
  this._visible = $dataSystem.optFollowers;
  this._gathering = false;
  this._data = [];
  var max = Yanfly.Param.PartyMaxFollower || $gameParty.maxBattleMembers();
  for (var i = 1; i < max; i++) {
    this._data.push(new Game_Follower(i));
  }
};

//=============================================================================
// Game_Interpreter
//=============================================================================

Yanfly.Party.Game_Interpreter_pluginCommand =
  Game_Interpreter.prototype.pluginCommand;
Game_Interpreter.prototype.pluginCommand = function (command, args) {
  Yanfly.Party.Game_Interpreter_pluginCommand.call(this, command, args)
  if (command === 'OpenPartyMenu') this.gotoSceneParty();
  if (command === 'ChangePartyMax') $gameParty.changeBattleMax(args[0]);
  if (command === 'LockActor') this.lockActor(args, true);
  if (command === 'UnlockActor') this.lockActor(args, false);
  if (command === 'RequireActor') this.requireActor(args, true);
  if (command === 'UnrequireActor') this.requireActor(args, false);
  if (command === 'ShowBattleFormation') {
    $gameSystem.setShowBattleFormation(true);
  }
  if (command === 'HideBattleFormation') {
    $gameSystem.setShowBattleFormation(false);
  }
  if (command === 'EnableBattleFormation') {
    $gameSystem.setBattleFormationEnabled(true);
  }
  if (command === 'DisableBattleFormation') {
    $gameSystem.setBattleFormationEnabled(false);
  }
};

Game_Interpreter.prototype.gotoSceneParty = function () {
  if ($gameParty.inBattle()) return;
  $gameParty.loadActorImages();
  SceneManager.push(Scene_Party);
};

Game_Interpreter.prototype.lockActor = function (args, value) {
  for (i = 0; i < args.length; i++) {
    var actorId = Number(args[i]);
    if ($gameActors.actor(actorId)) {
      $gameActors.actor(actorId)._locked = value;
    }
  }
};

Game_Interpreter.prototype.requireActor = function (args, value) {
  for (i = 0; i < args.length; i++) {
    var actorId = Number(args[i]);
    if ($gameActors.actor(actorId)) {
      $gameActors.actor(actorId)._required = value;
    }
  }
};

//=============================================================================
// Window_PartyMenuCommand
//=============================================================================

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

Window_PartyMenuCommand.prototype = Object.create(Window_Command.prototype);
Window_PartyMenuCommand.prototype.constructor = Window_PartyMenuCommand;

Window_PartyMenuCommand.prototype.initialize = function (x, y) {
  Window_Command.prototype.initialize.call(this, x, y);
};

Window_PartyMenuCommand.prototype.windowWidth = function () {
  var ww = $gameParty.maxBattleMembers() * Window_Base._faceWidth;
  ww += this.standardPadding() * 2;
  return (Graphics.boxWidth - ww).clamp(Graphics.boxWidth / 4, 240);
};

Window_PartyMenuCommand.prototype.numVisibleRows = function () {
  return 4;
};

Window_PartyMenuCommand.prototype.itemTextAlign = function () {
  return Yanfly.Param.PartyTextAlign;
};

Window_PartyMenuCommand.prototype.makeCommandList = function () {
  this.addChangeCommand();
  this.addRemoveCommand();
  this.addRevertCommand();
  this.addCustomCommand();
  this.addCancelCommand();
};

Window_PartyMenuCommand.prototype.addChangeCommand = function () {
  if (Yanfly.Param.PartyCommand1 === '') return;
  this.addCommand(Yanfly.Param.PartyCommand1, 'change');
};

Window_PartyMenuCommand.prototype.addRemoveCommand = function () {
  if (Yanfly.Param.PartyCommand2 === '') return;
  this.addCommand(Yanfly.Param.PartyCommand2, 'remove');
};

Window_PartyMenuCommand.prototype.addRevertCommand = function () {
  if (Yanfly.Param.PartyCommand3 === '') return;
  this.addCommand(Yanfly.Param.PartyCommand3, 'revert');
};

Window_PartyMenuCommand.prototype.addCustomCommand = function () {
};

Window_PartyMenuCommand.prototype.addCancelCommand = function () {
  var enabled = this.isCancelEnabled();
  if (Yanfly.Param.PartyCommand4 === '') return;
  this.addCommand(Yanfly.Param.PartyCommand4, 'cancel', enabled);
};

Window_PartyMenuCommand.prototype.inParty = function (actor) {
  return ($gameParty.battleMembers().contains(actor));
};

Window_PartyMenuCommand.prototype.isCancelEnabled = function () {
  if ($gameParty.aliveMembers().length <= 0) return false;
  if ($gameParty.battleMembers().length <= 0) return false;
  for (var i = 0; i < $gameParty._actors.length; ++i) {
    var actorId = $gameParty._actors[i];
    if (this.refuseCancel(actorId)) return false;
  }
  return true
};

Window_PartyMenuCommand.prototype.refuseCancel = function (actorId) {
  if ($gameParty._battleMembers.contains(actorId)) return false;
  if ($gameActors.actor(actorId)._required) return true;
  return false;
};

//=============================================================================
// Window_PartySelect
//=============================================================================

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

Window_PartySelect.prototype = Object.create(Window_Selectable.prototype);
Window_PartySelect.prototype.constructor = Window_PartySelect;

Window_PartySelect.prototype.initialize = function (commandWindow) {
  var wx = commandWindow.width;
  var wy = commandWindow.y;
  var ww = Graphics.boxWidth - commandWindow.width;
  var wh = commandWindow.height;
  Window_Selectable.prototype.initialize.call(this, wx, wy, ww, wh);
  this.select(-1);
  this.deactivate();
  this.refresh();
};

Window_PartySelect.prototype.maxCols = function () {
  return $gameParty.maxBattleMembers();
};

Window_PartySelect.prototype.maxItems = function () {
  return $gameParty.maxBattleMembers();
};

Window_PartySelect.prototype.itemRect = function (index) {
  var rect = new Rectangle();
  rect.width = this.contents.width / this.maxItems();
  rect.height = this.contents.height;
  rect.x = index * rect.width;
  rect.y = 0;
  return rect;
};

Window_PartySelect.prototype.refresh = function () {
  this.makeItemList();
  this.createContents();
  this.drawAllItems();
};

Window_PartySelect.prototype.makeItemList = function () {
  this._data = $gameParty._battleMembers.slice(0);
};

Window_PartySelect.prototype.drawItem = function (index) {
  var actor = $gameActors.actor(this._data[index]);
  var rect = this.itemRect(index);
  rect.x += this.textPadding() / 2;
  rect.y += this.textPadding() / 2;
  rect.width -= this.textPadding();
  rect.height -= this.textPadding();
  if (actor) {
    this.drawActor(rect, actor);
  } else {
    this.drawEmpty(rect);
  }
};

Window_PartySelect.prototype.drawEmpty = function (rect) {
  var color = this.gaugeBackColor();
  this.changePaintOpacity(false);
  this.contents.fillRect(rect.x, rect.y, rect.width, rect.height, color);
  this.changePaintOpacity(true);
  this.resetFontSettings();
  var text = Yanfly.Param.PartyEmptyText
  this.contents.drawText(text, rect.x, rect.y, rect.width,
    rect.height, 'center');
};

Window_PartySelect.prototype.drawActor = function (rect, actor) {
  if (Yanfly.Param.PartyShowFace) {
    this.drawActorFace(actor, rect.x, rect.y, rect.width, rect.height);
  }
  if (Yanfly.Param.PartyShowCharacter) {
    var ry = rect.height * 19 / 20;
    this.drawActorCharacter(actor, rect.x + rect.width / 2, ry);
  }
  this.drawActorName(actor, rect.x, rect.y, rect.width);
  this.drawLockedIcon(actor, rect);
  this.drawRequiredIcon(actor, rect);
};

Window_PartySelect.prototype.drawLockedIcon = function (actor, rect) {
  if (!actor._locked) return;
  var ix = rect.x + rect.width - Window_Base._iconWidth - 2;
  var iy = rect.y + rect.height - Window_Base._iconHeight - 2;
  this.drawIcon(Yanfly.Icon.PartyLocked, ix, iy)
};

Window_PartySelect.prototype.drawRequiredIcon = function (actor, rect) {
  if (!actor._required) return;
  var ix = rect.x + 2;
  var iy = rect.y + rect.height - Window_Base._iconHeight - 2;
  this.drawIcon(Yanfly.Icon.PartyRequired, ix, iy)
};

Window_PartySelect.prototype.curActor = function () {
  if (!this._data) return null;
  var actorId = this._data[this._index];
  return $gameActors.actor(actorId);
};

Window_PartySelect.prototype.prevActor = function () {
  var id = this._index === 0 ? this._data.length - 1 : this._index - 1;
  var actorId = this._data[id];
  return $gameActors.actor(actorId);
};

Window_PartySelect.prototype.nextActor = function () {
  var id = this._index === this._data.length - 1 ? 0 : this._index + 1;
  var actorId = this._data[id];
  return $gameActors.actor(actorId);
};

Window_PartySelect.prototype.processActor = function (value) {
  return true;
};

Window_PartySelect.prototype.isCurrentItemEnabled = function () {
  if (this.curActor()) return this.curActor().isFormationChangeOk();
  return true;
};

Window_PartySelect.prototype.processPageup = function () {
  if (this.curActor() && this.curActor()._locked) {
    this.playBuzzerSound();
  } else if (this.prevActor() && this.prevActor()._locked) {
    this.playBuzzerSound();
  } else if (this.processActor('prevActor')) {
    Window_Selectable.prototype.processPageup.call(this);
    this.activate();
    this.select(this._index === 0 ? this._data.length - 1 : this._index - 1)
  } else {
    this.playBuzzerSound();
  }
};

Window_PartySelect.prototype.processPagedown = function () {
  if (this.curActor() && this.curActor()._locked) {
    this.playBuzzerSound();
  } else if (this.nextActor() && this.nextActor()._locked) {
    this.playBuzzerSound();
  } else if (this.processActor('nextActor')) {
    Window_Selectable.prototype.processPagedown.call(this);
    this.activate();
    this.select(this._index === this._data.length - 1 ? 0 : this._index + 1)
  } else {
    this.playBuzzerSound();
  }
};

Window_PartySelect.prototype.setDetailWindow = function (win) {
  this._detailWindow = win;
  this.callUpdateHelp();
};

Window_PartySelect.prototype.callUpdateHelp = function () {
  this.setHelpWindowItem(this.curActor());
  this.setDetailWindowItem(this.curActor());
};

Window_PartySelect.prototype.setHelpWindowItem = function (actor) {
  if (this._helpWindow && actor) {
    this._helpWindow.setText(actor.profile());
  } else if (this._helpWindow) {
    this._helpWindow.clear();
  }
};

Window_PartySelect.prototype.setDetailWindowItem = function (actor) {
  if (this._detailWindow) this._detailWindow.setActor(actor);
};

Window_PartySelect.prototype.item = function () {
  var index = this.index();
  return this._data && index >= 0 ? this._data[index] : null;
};

//=============================================================================
// Window_PartyList
//=============================================================================

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

Window_PartyList.prototype = Object.create(Window_Selectable.prototype);
Window_PartyList.prototype.constructor = Window_PartyList;

Window_PartyList.prototype.initialize = function (partyWindow) {
  ;
  var wy = partyWindow.y + partyWindow.height;
  this._detailedWindow = Yanfly.Param.PartyDetailWin;
  var ww = this.windowWidth();
  var wh = Graphics.boxHeight - wy;
  Window_Selectable.prototype.initialize.call(this, 0, wy, ww, wh);
  this.select(1);
  this.deactivate();
  this.refresh();
};

Window_PartyList.prototype.windowWidth = function () {
  if (this._detailedWindow) {
    return Yanfly.Param.PartyListWidth;
  } else {
    return Graphics.boxWidth;
  }
};

Window_PartyList.prototype.maxItems = function () {
  return this._data ? this._data.length : 1;
};

Window_PartyList.prototype.refresh = function () {
  this.makeItemList();
  this.createContents();
  this.drawAllItems();
};

Window_PartyList.prototype.makeItemList = function () {
  this._data = [0];
  this.createActorOrder();
  this._data.push(0);
};

Window_PartyList.prototype.createActorOrder = function () {
  for (var i = 0; i < $gameParty._actors.length; ++i) {
    var actorId = $gameParty._actors[i];
    if ($gameActors.actor(actorId)) this._data.push(actorId);
  }
};

Window_PartyList.prototype.drawAllItems = function () {
  var topIndex = this.topIndex();
  for (var i = 0; i < this.maxPageItems(); i++) {
    var index = topIndex + i;
    if (index < this.maxItems()) {
      this.drawItem(index);
      this.clearItem(index + 1);
    }
  }
};

Window_PartyList.prototype.drawItem = function (index) {
  var actor = $gameActors.actor(this._data[index]);
  if (actor) {
    var bitmap = ImageManager.loadCharacter(actor.characterName());
    if (bitmap.width <= 0) {
      return setTimeout(this.drawItem.bind(this, index), 5);
    }
  }
  this.clearItem(index);
  var rect = this.itemRect(index);
  if (this._data[index] === 0) {
    this.drawRemove(rect);
    return;
  }
  this.drawActor(actor, rect);
};

Window_PartyList.prototype.drawRemove = function (rect) {
  var ibw = Window_Base._iconWidth + 4;
  if (Yanfly.Icon.PartyRemove <= 0) ibw = this.textPadding();
  rect.width -= this.textPadding();
  this.drawIcon(Yanfly.Icon.PartyRemove, rect.x + 2, rect.y + 2);
  this.drawText(Yanfly.Param.PartyCommand2, rect.x + ibw, rect.y,
    rect.width - ibw);
};

Window_PartyList.prototype.drawActor = function (actor, rect) {
  this.drawBasic(actor, rect);
  if (this._detailedWindow) return;
  this.drawExtra(actor, rect);
};

Window_PartyList.prototype.drawBasic = function (actor, rect) {
  var wx = Window_Base._iconWidth / 2 + this.textPadding() / 2;
  var wy = rect.y + rect.height + Yanfly.Param.PartySpriteBufferY
  if (Yanfly.Param.PartyShowListSprite) {
    this.drawActorCharacter(actor, wx, wy);
  }
  this.changeTextColor(this.listColor(actor));
  this.changePaintOpacity(this.actorIsEnabled(actor));
  var ibw = Window_Base._iconWidth + 4;
  if (!Yanfly.Param.PartyShowListSprite) ibw = this.textPadding();
  this.drawText(actor.name(), rect.x + ibw, rect.y, rect.width - ibw);
  this.changePaintOpacity(true);
  this.drawRestrictions(actor, rect);
  this.resetFontSettings();
};

Window_PartyList.prototype.drawExtra = function (actor, rect) {
  var section = this.itemSection();
  this.drawActorLevel(actor, section * 2, rect.y);
  this.drawActorHp(actor, section * 3, rect.y, section - 6);
  this.drawActorMp(actor, section * 4, rect.y, section - 6);
  if ($dataSystem.optDisplayTp) {
    this.drawActorTp(actor, section * 5, rect.y, section - 6);
  }
  this.drawRestrictions(actor, rect);
};

Window_PartyList.prototype.drawRestrictions = function (actor, rect) {
  if (this._detailedWindow) {
    var wx = this.contents.width - Window_Base._iconWidth - 2;
  } else {
    var section = this.itemSection();
    var wx = section * 2 - Window_Base._iconWidth - 2;
  }
  if (actor._locked) {
    this.drawIcon(Yanfly.Icon.PartyLocked, wx, rect.y);
    wx -= Window_Base._iconWidth;
  }
  if (actor._required) {
    this.drawIcon(Yanfly.Icon.PartyRequired, wx, rect.y);
  }
};

Window_PartyList.prototype.itemSection = function () {
  var sections = 5;
  if ($dataSystem.optDisplayTp) sections += 1;
  return this.contents.width / sections;
};

Window_PartyList.prototype.drawCurrentAndMax = function (current, max, x, y,
  width, color1, color2) {
  var labelWidth = this.textWidth('HP');
  var valueWidth = this.textWidth(Yanfly.Util.toGroup(max));
  var slashWidth = this.textWidth('/');
  var x1 = x + width - valueWidth;
  this.changeTextColor(color1);
  this.drawText(Yanfly.Util.toGroup(current), x1, y, valueWidth, 'right');
};

Window_PartyList.prototype.listColor = function (actor) {
  if (actor.isBattleMember()) {
    return this.textColor(Yanfly.Param.ColorInParty);
  }
  return this.normalColor()
};

Window_PartyList.prototype.curActor = function () {
  var actorId = this._data[this._index];
  return $gameActors.actor(actorId);
};

Window_PartyList.prototype.isCurrentItemEnabled = function () {
  if (this.curActor()) return this.curActor().isFormationChangeOk();
  return true;
};

Window_PartyList.prototype.actorIsEnabled = function (actor) {
  return actor.isAppeared();
};

Window_PartyList.prototype.setDetailWindow = function (win) {
  this._detailWindow = win;
  this.callUpdateHelp();
};

Window_PartyList.prototype.callUpdateHelp = function () {
  this.setHelpWindowItem($gameActors.actor(this.item()));
  this.setDetailWindowItem($gameActors.actor(this.item()));
};

Window_PartyList.prototype.setHelpWindowItem = function (actor) {
  if (this._helpWindow && actor) {
    this._helpWindow.setText(actor.profile());
  } else if (this._helpWindow) {
    this._helpWindow.clear();
  }
};

Window_PartyList.prototype.setDetailWindowItem = function (actor) {
  if (this._detailWindow) this._detailWindow.setActor(actor);
};

Window_PartyList.prototype.item = function () {
  var index = this.index();
  return this._data && index >= 0 ? this._data[index] : null;
};

//=============================================================================
// Window_PartyDetail
//=============================================================================

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

Window_PartyDetail.prototype = Object.create(Window_Base.prototype);
Window_PartyDetail.prototype.constructor = Window_PartyDetail;

Window_PartyDetail.prototype.initialize = function (x, y, width, height) {
  Window_Base.prototype.initialize.call(this, x, y, width, height);
  this._actor = null;
};

Window_PartyDetail.prototype.setActor = function (actor) {
  if (this._actor === actor) return;
  this._actor = actor;
  this.refresh();
};

Window_PartyDetail.prototype.clear = function () {
  this.contents.clear();
  this.drawDarkRect(0, 0, this.contents.width, this.contents.height);
  this.changeTextColor(this.systemColor());
  var text = Yanfly.Param.PartyEmptyText
  this.contents.drawText(text, 0, 0, this.contents.width,
    this.contents.height, 'center');
};

Window_PartyDetail.prototype.refresh = function () {
  if (!this._actor) return this.clear();
  this.contents.clear();
  this.drawActorBasicInfo();
  this.calculateAvailableLines();
  this.drawDarkRectangles();
  this.drawActorParams();
  this.drawActorEquips();
};

Window_PartyDetail.prototype.drawDarkRectangles = function () {
  var ww = this.contents.width / 2;
  var wy = this.lineHeight() * 4;
  if (this._linesAvailable >= 7) wy += this.lineHeight();
  if (this._linesAvailable === 4) wy += this.lineHeight();
  var max = this._linesAvailable;
  max = Math.min(this._linesAvailable, this._actor.equipSlots().length);
  for (var i = 0; i < max; ++i) {
    if (wy + this.lineHeight() > this.contents.height) break;
    this.drawDarkRect(ww, wy, ww, this.lineHeight());
    wy += this.lineHeight();
  }
  var wy = this.lineHeight() * 4;
  if (this._linesAvailable >= 7) wy += this.lineHeight();
  if (this._linesAvailable === 4) wy += this.lineHeight();
  for (var i = 0; i < 6; ++i) {
    var rect = this.paramRect(i);
    this.drawDarkRect(rect.x, rect.y, rect.width, rect.height);
  }
};

Window_PartyDetail.prototype.drawDarkRect = function (dx, dy, dw, dh) {
  var color = this.gaugeBackColor();
  this.changePaintOpacity(false);
  this.contents.fillRect(dx + 1, dy + 1, dw - 2, dh - 2, color);
  this.changePaintOpacity(true);
};

Window_PartyDetail.prototype.paramRect = function (index) {
  var rect = new Rectangle();
  rect.x = 0;
  rect.y = this.lineHeight() * 4;
  rect.height = this.lineHeight();
  rect.width = this.contents.width / 2
  if (this._linesAvailable >= 7) rect.y += this.lineHeight();
  if (this._linesAvailable === 4) rect.y += this.lineHeight();
  if (this._linesAvailable >= 6) {
    rect.y += this.lineHeight() * index;
  } else {
    rect.width /= 2;
    rect.x = index % 2 === 0 ? 0 : rect.width;
    rect.y += this.lineHeight() * Math.floor(index / 2);
  }
  return rect;
};

Window_PartyDetail.prototype.drawActorBasicInfo = function () {
  var w = this.width - this.padding * 2;
  var h = this.height - this.padding * 2;
  var y = 0;
  var padding = 0;
  var xpad = padding + Window_Base._faceWidth;
  var width = w - 162 - this.textPadding();
  h = Window_Base._faceHeight;
  this.drawActorFace(this._actor, 0, 0, Window_Base._faceWidth, h);
  this.drawActorSimpleStatus(this._actor, xpad, y, width);
};

Window_PartyDetail.prototype.calculateAvailableLines = function () {
  if (this._linesAvailable) return;
  this._linesAvailable = this.contents.height - this.lineHeight() * 4;
  this._linesAvailable /= this.lineHeight();
  this._linesAvailable = Math.floor(this._linesAvailable);
};

Window_PartyDetail.prototype.drawActorParams = function () {
  this.drawActorParamsTitle();
  for (var i = 0; i < 6; ++i) {
    var rect = this.paramRect(i);
    if (this._linesAvailable > 4) {
      rect.x += 8;
      rect.width -= 16;
    } else {
      rect.x += 4;
      rect.width -= 8;
    }
    var paramId = i + 2;
    var text = TextManager.param(paramId);
    this.changeTextColor(this.systemColor());
    this.drawText(text, rect.x, rect.y, rect.width);
    var paramValue = Yanfly.Util.toGroup(this._actor.param(paramId));
    this.changeTextColor(this.normalColor());
    this.drawText(paramValue, rect.x, rect.y, rect.width, 'right');
  }
};

Window_PartyDetail.prototype.drawActorParamsTitle = function () {
  var wy = this.lineHeight() * 4;
  var ww = this.contents.width / 2;
  if (this._linesAvailable >= 7) {
    var text = Yanfly.Param.PartyDetailParam;
    this.changeTextColor(this.systemColor());
    this.drawText(text, 0, wy, ww, 'center');
  } else if (this._linesAvailable === 4) {
    var text = Yanfly.Param.PartyDetailParam;
    this.changeTextColor(this.systemColor());
    this.drawText(text, 0, wy, ww, 'center');
  }
};

Window_PartyDetail.prototype.drawActorEquips = function () {
  this.drawActorEquipsTitle();
  var equips = this.getActorEquips();
  this.drawActorEquipsList(equips);
};

Window_PartyDetail.prototype.drawActorEquipsTitle = function () {
  var wy = this.lineHeight() * 4;
  var ww = this.contents.width / 2;
  if (this._linesAvailable >= 7) {
    var text = Yanfly.Param.PartyDetailEquip;
    this.changeTextColor(this.systemColor());
    this.drawText(text, ww, wy, ww, 'center');
  } else if (this._linesAvailable === 4) {
    var text = Yanfly.Param.PartyDetailEquip;
    this.changeTextColor(this.systemColor());
    this.drawText(text, ww, wy, ww, 'center');
  }
};

Window_PartyDetail.prototype.getActorEquips = function () {
  var equips = [];
  for (var i = 0; i < this._actor.equips().length; ++i) {
    var equip = this._actor.equips()[i];
    if (equip) equips.push(equip);
  }
  return equips;
};

Window_PartyDetail.prototype.drawActorEquipsList = function (equips) {
  this._lastSlot = false;
  var max = this._linesAvailable;
  var ww = this.contents.width / 2;
  var wh = this.lineHeight();
  var wy = this.lineHeight() * 4;
  var wx = ww + 6;
  ww -= 12;
  if (this._linesAvailable >= 7) {
    max -= 1;
    wy += this.lineHeight();
  }
  if (this._linesAvailable === 4) {
    max -= 1;
    wy += this.lineHeight();
  }
  for (var i = 0; i < equips.length; ++i) {
    var equip = equips[i];
    if (!equip) break;
    if (i >= max - 1 && i < equips.length - 1) this._lastSlot = true;
    if (this._lastSlot) {
      var iconIndex = equip.iconIndex;
      this.drawIcon(iconIndex, wx + 2, wy + 2);
      wx += Window_Base._iconWidth;
      continue;
    } else if (this._lastSlot && i === equips.length - 1) {
      var iconIndex = equip.iconIndex;
      this.drawIcon(iconIndex, wx + 2, wy + 2);
      wx += Window_Base._iconWidth;
    } else {
      this.drawItemName(equip, wx, wy, ww);
    }
    wy += this.lineHeight();
  }
};

//=============================================================================
// Battle Engine Core Implementation
//=============================================================================

if (Imported.YEP_BattleEngineCore) {

  //=============================================================================
  // BattleManager
  //=============================================================================

  Yanfly.Party.BattleManager_startBattle = BattleManager.startBattle;
  BattleManager.startBattle = function () {
    if (!$gameTemp._partyBattle) {
      Yanfly.Party.BattleManager_startBattle.call(this);
    }
    $gameTemp._partyBattle = false;
    this._bypassMoveToStartLocation = false;
    BattleManager.refreshAllBattlers();
  };

  BattleManager.refreshAllBattlers = function () {
    var members = $gameParty.members().concat($gameTroop.members());
    var length = members.length;
    for (var i = 0; i < length; ++i) {
      var member = members[i];
      if (member) member.refresh();
    }
  };

  Yanfly.Party.BattleManager_playBattleBgm = BattleManager.playBattleBgm;
  BattleManager.playBattleBgm = function () {
    var restartBgm = true;
    if (Yanfly.Party.SavedBattleBgm) {
      AudioManager.playBgm(Yanfly.Party.SavedBattleBgm);
      Yanfly.Party.SavedBattleBgm = undefined;
      restartBgm = false;
    }
    if (Yanfly.Party.SavedBattleBgs) {
      AudioManager.playBgs(Yanfly.Party.SavedBattleBgs);
      Yanfly.Party.SavedBattleBgs = undefined;
      restartBgm = false;
    }
    if (restartBgm) Yanfly.Party.BattleManager_playBattleBgm.call(this);
  };

  //=============================================================================
  // Game_Unit
  //=============================================================================

  Yanfly.Party.Game_Unit_onBattleStart = Game_Unit.prototype.onBattleStart;
  Game_Unit.prototype.onBattleStart = function () {
    if ($gameTemp._partyBattle) return;
    Yanfly.Party.Game_Unit_onBattleStart.call(this);
    $gameSystem.resetBattleFormationCooldown();
  };

  Yanfly.Party.Game_Unit_onBattleEnd = Game_Unit.prototype.onBattleEnd;
  Game_Unit.prototype.onBattleEnd = function () {
    if ($gameTemp._partyBattle) return;
    Yanfly.Party.Game_Unit_onBattleEnd.call(this);
    $gameSystem.resetBattleFormationCooldown();
  };

  //=============================================================================
  // Window_Command
  //=============================================================================

  Window_Command.prototype.addCommandAt = function (index, name, symbol, en, ext) {
    if (en === undefined) enabled = true;
    if (ext === undefined) ext = null;
    var obj = { name: name, symbol: symbol, enabled: en, ext: ext };
    this._list.splice(index, 0, obj);
  };

  //=============================================================================
  // Window_PartyCommand
  //=============================================================================

  Yanfly.Party.Window_PartyCommand_makeCommandList =
    Window_PartyCommand.prototype.makeCommandList;
  Window_PartyCommand.prototype.makeCommandList = function () {
    Yanfly.Party.Window_PartyCommand_makeCommandList.call(this);
    this.addFormationCommand();
  };

  Window_PartyCommand.prototype.addFormationCommand = function () {
    if (!$gameSystem.isShowBattleFormation()) return;
    var index = this.findSymbol('escape');
    var enabled = $gameSystem.isBattleFormationEnabled();
    this.addCommandAt(index, TextManager.formation, 'formation', enabled);
  };

  //=============================================================================
  // Sprite_Actor
  //=============================================================================

  Yanfly.Party.Sprite_Actor_moveToStartPosition =
    Sprite_Actor.prototype.moveToStartPosition;
  Sprite_Actor.prototype.moveToStartPosition = function () {
    if (BattleManager._bypassMoveToStartLocation) return;
    Yanfly.Party.Sprite_Actor_moveToStartPosition.call(this);
  };

  //=============================================================================
  // Spriteset_Battle
  //=============================================================================

  Yanfly.Party.Spriteset_Battle_createBackground =
    Spriteset_Battle.prototype.createBackground;
  Spriteset_Battle.prototype.createBackground = function () {
    Yanfly.Party.Spriteset_Battle_createBackground.call(this);
    if (Yanfly.Party.SavedBackgroundBitmap) {
      var spr = this._backgroundSprite;
      spr.bitmap = Yanfly.Party.SavedBackgroundBitmap;
      Yanfly.Party.SavedBackgroundBitmap = undefined;
    }
  };

  //=============================================================================
  // Scene_Map
  //=============================================================================

  Yanfly.Party.Scene_Map_create = Scene_Map.prototype.create;
  Scene_Map.prototype.create = function () {
    Yanfly.Party.Scene_Map_create.call(this);
    $gameParty.loadActorImages();
  };

  //=============================================================================
  // Scene_Battle
  //=============================================================================

  Yanfly.Party.Scene_Battle_createDisplayObjects =
    Scene_Battle.prototype.createDisplayObjects;
  Scene_Battle.prototype.createDisplayObjects = function () {
    Yanfly.Party.Scene_Battle_createDisplayObjects.call(this);
    $gameParty.loadActorImages();
  };

  Yanfly.Party.Scene_Battle_createSpriteset =
    Scene_Battle.prototype.createSpriteset;
  Scene_Battle.prototype.createSpriteset = function () {
    if ($gameTemp.hasStoredBattleSpriteset()) {
      $gameTemp.restoreBattleSpriteset();
    } else {
      Yanfly.Party.Scene_Battle_createSpriteset.call(this);
    }
  };

  Yanfly.Party.Scene_Battle_createPartyCommandWindow =
    Scene_Battle.prototype.createPartyCommandWindow;
  Scene_Battle.prototype.createPartyCommandWindow = function () {
    Yanfly.Party.Scene_Battle_createPartyCommandWindow.call(this);
    var win = this._partyCommandWindow;
    win.setHandler('formation', this.partyCommandFormation.bind(this));
  };

  Scene_Battle.prototype.partyCommandFormation = function () {
    BattleManager._bypassMoveToStartLocation = true;
    $gameParty.loadActorImages();
    this.prepareBackground();
    BattleManager._savedActor = BattleManager.actor();
    $gameSystem.setBattleFormationCooldown();
    Yanfly.Party.SavedBattleBgm = AudioManager.saveBgm();
    Yanfly.Party.SavedBattleBgs = AudioManager.saveBgs();
    $gameTemp.storeBattleSpriteset();
    SceneManager.push(Scene_Party);
    BattleManager._phase = 'input';
    $gameTemp._partyBattle = true;
  };

  Scene_Battle.prototype.prepareBackground = function () {
    Yanfly.Party.SavedBackgroundBitmap = SceneManager._backgroundBitmap;
    this._prevWindowLayer = this._windowLayer.y;
    this._windowLayer.y = Graphics.boxHeight * 495;
    SceneManager.snapForBackground();
    this._windowLayer.y = this._prevWindowLayer;
  };

}; // Imported.YEP_BattleEngineCore

//=============================================================================
// Scene_Menu
//=============================================================================

Scene_Menu.prototype.commandFormation = function () {
  $gameParty.loadActorImages();
  SceneManager.push(Scene_Party);
};

//=============================================================================
// Scene_Party
//=============================================================================

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

Scene_Party.prototype = Object.create(Scene_MenuBase.prototype);
Scene_Party.prototype.constructor = Scene_Party;

Scene_Party.prototype.initialize = function () {
  Scene_MenuBase.prototype.initialize.call(this);
  this._formerParty = $gameParty._battleMembers.slice(0);
};

Scene_Party.prototype.create = function () {
  Scene_MenuBase.prototype.create.call(this);
  if (Yanfly.Param.PartyHelpWindow) this.createHelpWindow();
  this.createCommandWindow();
  this.createPartyWindow();
  this.createListWindow();
  this.createDetailWindow();
};

Scene_Party.prototype.createCommandWindow = function () {
  this._commandWindow = new Window_PartyMenuCommand(0, 0);
  if (this._helpWindow) this._commandWindow.y = this._helpWindow.height;
  this._commandWindow.setHandler('change', this.commandAdjust.bind(this));
  this._commandWindow.setHandler('remove', this.commandAdjust.bind(this));
  this._commandWindow.setHandler('revert', this.commandRevert.bind(this));
  this._commandWindow.setHandler('cancel', this.commandFinish.bind(this));
  this.addWindow(this._commandWindow);
};

Scene_Party.prototype.createPartyWindow = function () {
  this._partyWindow = new Window_PartySelect(this._commandWindow);
  if (this._helpWindow) this._partyWindow.setHelpWindow(this._helpWindow);
  this._partyWindow.setHandler('ok', this.onPartyOk.bind(this));
  this._partyWindow.setHandler('cancel', this.onPartyCancel.bind(this));
  this._partyWindow.setHandler('pageup', this.onPartyPageUp.bind(this));
  this._partyWindow.setHandler('pagedown', this.onPartyPageDown.bind(this));
  this.addWindow(this._partyWindow);
};

Scene_Party.prototype.createListWindow = function () {
  this._listWindow = new Window_PartyList(this._partyWindow);
  if (this._helpWindow) this._listWindow.setHelpWindow(this._helpWindow);
  this._listWindow.setHandler('ok', this.onListOk.bind(this));
  this._listWindow.setHandler('cancel', this.onListCancel.bind(this));
  this.addWindow(this._listWindow);
};

Scene_Party.prototype.createDetailWindow = function () {
  if (!Yanfly.Param.PartyDetailWin) return;
  var wx = this._listWindow.width;
  var wy = this._listWindow.y;
  var ww = Graphics.boxWidth - wx;
  var wh = Graphics.boxHeight - wy;
  this._detailWindow = new Window_PartyDetail(wx, wy, ww, wh);
  this.addWindow(this._detailWindow);
  this._partyWindow.setDetailWindow(this._detailWindow);
  this._listWindow.setDetailWindow(this._detailWindow);
  this._detailWindow.clear();
};

Scene_Party.prototype.refreshWindows = function () {
  $gameParty.rearrangeActors();
  this._commandWindow.refresh();
  this._partyWindow.refresh();
  this._listWindow.refresh();
  $gamePlayer.refresh();
  $gameMap.requestRefresh();
};

Scene_Party.prototype.commandAdjust = function () {
  this._partyWindow.activate();
  this._partyWindow.select(0);
};

Scene_Party.prototype.commandRevert = function () {
  this._commandWindow.activate();
  $gameParty._battleMembers = this._formerParty.slice(0);
  this.refreshWindows();
};

Scene_Party.prototype.commandFinish = function () {
  if ($gameParty.inBattle()) {
    $gameParty.reconstructActions();
    if (BattleManager._savedActor) {
      BattleManager._actorIndex = BattleManager._savedActor.index();
    }
  }
  this.popScene();
};

Scene_Party.prototype.onPartyOk = function () {
  var symbol = this._commandWindow.currentSymbol();
  if (symbol === 'change') {
    this._listWindow.activate()
  } else if (symbol === 'remove') {
    SoundManager.playEquip();
    var index = this._partyWindow._index;
    var actor = $gameActors.actor($gameParty._battleMembers[index]);
    $gameParty._battleMembers[index] = 0
    this.refreshWindows();
    this._partyWindow.activate();
  }
};

Scene_Party.prototype.onPartyCancel = function () {
  this._partyWindow.select(-1);
  this._commandWindow.activate();
  if (this._helpWindow) this._helpWindow.setItem(null);
};

Scene_Party.prototype.onPartyPageUp = function () {
  SoundManager.playEquip();
  var actorId1 = this._partyWindow.item();
  if (!this._partyWindow.prevActor()) {
    var actorId2 = 0;
  } else {
    var actorId2 = this._partyWindow.prevActor().actorId();
  }
  var max = this._partyWindow.maxItems() - 1;
  var index1 = this._partyWindow._index;
  var index2 = this._partyWindow._index === 0 ? max : index1 - 1;
  $gameParty._battleMembers[index1] = actorId2;
  $gameParty._battleMembers[index2] = actorId1;
  this.refreshWindows();
};

Scene_Party.prototype.onPartyPageDown = function () {
  SoundManager.playEquip();
  var actorId1 = this._partyWindow.item();
  if (!this._partyWindow.nextActor()) {
    var actorId2 = 0;
  } else {
    var actorId2 = this._partyWindow.nextActor().actorId();
  }
  var max = this._partyWindow.maxItems() - 1;
  var index1 = this._partyWindow._index;
  var index2 = this._partyWindow._index === max ? 0 : index1 + 1;
  $gameParty._battleMembers[index1] = actorId2;
  $gameParty._battleMembers[index2] = actorId1;
  this.refreshWindows();
};

Scene_Party.prototype.onListCancel = function () {
  this._partyWindow.activate();
};

Scene_Party.prototype.onListOk = function () {
  SoundManager.playEquip();
  if (this._listWindow.item() <= 0) {
    this.otherAction();
  } else {
    this.switchActors();
  }
  this.refreshWindows();
  this._partyWindow.activate();
};

Scene_Party.prototype.otherAction = function () {
  if (this._listWindow.item() === 0) {
    $gameParty._battleMembers[this._partyWindow._index] = 0;
  }
};

Scene_Party.prototype.switchActors = function () {
  var targetId = this._listWindow.item();
  var targetIndex = this._partyWindow._index;
  if ($gameParty._battleMembers.contains(targetId)) {
    var switchId = this._partyWindow.item();
    var switchIndex = $gameParty._battleMembers.indexOf(targetId);
    $gameParty._battleMembers[switchIndex] = switchId;
  };
  $gameParty._battleMembers[targetIndex] = targetId;
};

//=============================================================================
// Utilities
//=============================================================================

Yanfly.Util = Yanfly.Util || {};

if (!Yanfly.Util.toGroup) {
  Yanfly.Util.toGroup = function (inVal) {
    return inVal;
  }
};

//=============================================================================
// End of File
//=============================================================================