//=============================================================================
// HeaderName.js
//=============================================================================
/*:
 * @target MZ
 * @author Thirop
 *
 * @param marginY
 * @text 頭上からの距離
 * @desc デフォルト:4
 * @type number
 * @default 4
 *
 * @param maxWidth
 * @text 最大横幅
 * @desc デフォルト:96
 * @type number
 * @default 96
 *
 * @param fontSize
 * @text フォントサイズ
 * @desc デフォルト:16
 * @type number
 * @default 16
 *
 */
//=============================================================================
//PRAGMA: englishHeader
//PRAGMA_END: englishHeader

(function () {
  "use strict";

  var parameters = PluginManager.parameters("HeaderName");
  var marginY = Number(parameters.marginY) || 4;
  var maxWidth = Number(parameters.maxWidth) || 128;
  var fontSize = Number(parameters.fontSize) || 20;

  //=============================================================================
  // HeaderNameSprite
  //=============================================================================
  Game_Character.prototype.headerName = function () {
    return null;
  };

  var _Game_Event_prototype_initMembers = Game_Event.prototype.initMembers;
  Game_Event.prototype.initMembers = function () {
    _Game_Event_prototype_initMembers.call(this);
    this._headerName = "";
  };

  var _Game_Event_initialize = Game_Event.prototype.initialize;
  Game_Event.prototype.initialize = function (mapId, eventId) {
    _Game_Event_initialize.call(this, mapId, eventId);

    var data = this.event();
    if (data && data.note) {
      this._headerName = data.note;
    }
  };
  Game_Event.prototype.headerName = function () {
    return this._headerName;
  };

  var _Sprite_Character_initMembers = Sprite_Character.prototype.initMembers;
  Sprite_Character.prototype.initMembers = function () {
    _Sprite_Character_initMembers.call(this);
    this._headerNameSprite = null;
    this._headerNameLines = 0;
  };

  var _Sprite_Character_setCharacter = Sprite_Character.prototype.setCharacter;
  Sprite_Character.prototype.setCharacter = function (character) {
    _Sprite_Character_setCharacter.call(this, character);
    var name = character.headerName();
    if (!name) {
      if (this._headerNameSprite) {
        this._headerNameSprite.visible = false;
      }
    } else {
      this.setupHeaderNameSprite(name);
    }
  };

  Sprite_Character.prototype.setupHeaderNameSprite = function (name) {
    var sprite = this._headerNameSprite;
    var bitmap;
    var lines = name.split("\\n");
    var length = lines.length;

    var lineHeight = fontSize + 2;
    if (!sprite || this._headerNameLines !== length) {
      bitmap = new Bitmap(maxWidth, length * lineHeight);
      sprite = new Sprite(bitmap);
      this._headerNameSprite = sprite;
      sprite.anchor.set(0.5, 1);
      sprite.z = 8;
      bitmap.fontSize = fontSize;
    } else {
      bitmap = sprite.bitmap;
      bitmap.clear();
    }

    this._headerNameLines = length;

    var width = bitmap.width;
    var height = bitmap.height;

    for (var i = 0; i < length; i = (i + 1) | 0) {
      var line = lines[i];
      bitmap.drawText(line, 0, i * lineHeight, width, lineHeight, "center");
    }
  };

  var _Sprite_Character_update = Sprite_Character.prototype.update;
  Sprite_Character.prototype.update = function () {
    _Sprite_Character_update.call(this);
    if (this._headerNameSprite) {
      this.updateHeaderNameSprite();
    }
  };

  Sprite_Character.prototype.updateHeaderNameSprite = function () {
    var sprite = this._headerNameSprite;
    if (!this.visible || this.opacity === 0) {
      sprite.visible = false;
      return;
    }

    if (!sprite.parent) {
      if (this.parent) {
        this.parent.addChild(sprite);
      } else {
        return;
      }
    }

    sprite.visible = true;
    sprite.x = this.x;
    sprite.y = this.y - this.height - marginY;
  };
})();