Change Event Settings (MV)

//=============================================================================
// Change Event Settings
// by Shaz (conversion of Ace script for TechnoNinja)
// Last Updated: 2016.05.31
//
//=============================================================================

/*:
 * @plugindesc Allows change of event graphic, priority and movement settings
 * @author Shaz
 *
 * @help
 *
 * Call one of the following in a Script command (not a plugin command):
 * page_graphic(ev, page, graphic, index)
 *    to change the graphic on an event's page
 * page_priority(ev, page, priority)
 *    to change a page's priority
 * page_move(ev, page, speed, freq, type)
 *    to change the momvement options of a page
 *
 */

 (function() {
   Game_Interpreter.prototype.page_graphic = function(ev, page, graphic, index = 0) {
     $gameMap.event(ev).page_graphic(page, graphic, index);
   }

   Game_Interpreter.prototype.page_priority = function(ev, page, priority) {
     $gameMap.event(ev).page_priority(page, priority);
   }

   Game_Interpreter.prototype.page_move = function(ev, page, speed, freq, type = null) {
     $gameMap.event(ev).page_move(page, speed, freq, type);
   }

   Game_Event.prototype.page_graphic = function(page, graphic, index) {
     this.event().pages[page].image.characterName = graphic;
     this.event().pages[page].image.characterIndex = index;
     this.setupPageSettings();
   }

   Game_Event.prototype.page_priority = function(page, priority) {
     this.event().pages[page].priorityType = priority;
     this.setupPageSettings();
   }

   Game_Event.prototype.page_move = function(page, speed, freq, type) {
     this.event().pages[page].moveSpeed = speed;
     this.event().pages[page].moveFrequency = freq;
     if type { this.event().pages[page].moveType = type };
     this.setupPageSettings();
   }
 })();