parallax_background.h

/*************************************************************************/
/*  parallax_background.h                                                */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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:                                             */
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/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
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/* 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.*/
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/*************************************************************************/
#ifndef PARALLAX_BACKGROUND_H
#define PARALLAX_BACKGROUND_H

#include "scene/main/canvas_layer.h"
#include "scene/2d/node_2d.h"
#include "scene/2d/camera_2d.h"

class ParallaxBackground : public CanvasLayer {

    OBJ_TYPE( ParallaxBackground, CanvasLayer  );

    Point2 offset;
    float scale;
    Point2 base_offset;
    Point2 base_scale;
    String group_name;
    Point2 limit_begin;
    Point2 limit_end;
    bool ignore_camera_zoom;

    void _update_scroll();
protected:

    void _camera_moved(const Matrix32& p_transform);

    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_ofs);
    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();

    ParallaxBackground();
};

#endif // PARALLAX_BACKGROUND_H