// Force Memao sprite rebuild when event changes page or image
const _Memao_Game_Event_refresh = Game_Event.prototype.refresh;
Game_Event.prototype.refresh = function() {
  _Memao_Game_Event_refresh.call(this);

  const page = this.page();
  const image = page ? page.image : null;
  const name = image?.characterName || "";
  const isMemao = name.toLowerCase().endsWith("_$(memao)");

  // --- Normal event: do nothing ---
  if (!isMemao) return;

  // --- Handle Memao event logic ---
  if (!page || !image.characterName) {
    // empty page → hide sprite
    this.setTransparent(true);
    this._through = true;

    // Find the sprite and visually hide it
    const scene = SceneManager._scene;
    if (scene && scene._spriteset) {
      const spriteset = scene._spriteset;
      for (const spr of spriteset._characterSprites || []) {
        if (spr && spr._character === this && spr instanceof Sprite_Memao) {
          spr.visible = false;
        }
      }
    }
    return;
  }