text: /*************************************************************************/
  /*  parallax_background.h                                                */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md).   */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef PARALLAX_BACKGROUND_H
  #define PARALLAX_BACKGROUND_H
  
  #include "scene/2d/camera_2d.h"
  #include "scene/2d/node_2d.h"
  #include "scene/main/canvas_layer.h"
  
  class GODOT_EXPORT ParallaxBackground : public CanvasLayer {
  
      GDCLASS(ParallaxBackground,CanvasLayer)
  
      Point2 offset;
      float scale;
      Point2 base_offset;
      Point2 base_scale;
      Point2 screen_offset;
      StringName group_name;
      Point2 limit_begin;
      Point2 limit_end;
      Point2 final_offset;
      bool ignore_camera_zoom;
  
      void _update_scroll();
  
  protected:
      void _camera_moved(const Transform2D &p_transform, const Point2 &p_screen_offset);
  
      void _notification(int p_what);
      static void _bind_methods();
  
  public:
      void set_scroll_offset(const Point2 &p_ofs);
      Point2 get_scroll_offset() const;
  
      void set_scroll_scale(float p_scale);
      float get_scroll_scale() const;
  
      void set_scroll_base_offset(const Point2 &p_ofs);
      Point2 get_scroll_base_offset() const;
  
      void set_scroll_base_scale(const Point2 &p_ofs);
      Point2 get_scroll_base_scale() const;
  
      void set_limit_begin(const Point2 &p_ofs);
      Point2 get_limit_begin() const;
  
      void set_limit_end(const Point2 &p_ofs);
      Point2 get_limit_end() const;
  
      void set_ignore_camera_zoom(bool ignore);
      bool is_ignore_camera_zoom();
  
      Vector2 get_final_offset() const;
  
      ParallaxBackground();
  };
  
  #endif // PARALLAX_BACKGROUND_H
  