collision_polygon_2d.h

/*************************************************************************/
/*  collision_polygon_2d.h                                               */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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#ifndef COLLISION_POLYGON_2D_H
#define COLLISION_POLYGON_2D_H

#include "scene/2d/node_2d.h"
#include "scene/resources/shape_2d.h"



class CollisionPolygon2D : public Node2D {

    OBJ_TYPE(CollisionPolygon2D,Node2D);
public:

    enum BuildMode {
        BUILD_SOLIDS,
        BUILD_SEGMENTS,
    };

protected:


    Rect2 aabb;
    BuildMode build_mode;
    Vector<Point2> polygon;
    bool trigger;
    bool unparenting;

    void _add_to_collision_object(Object *p_obj);
    void _update_parent();

    bool can_update_body;
    int shape_from;
    int shape_to;

    void _set_shape_range(const Vector2& p_range);
    Vector2 _get_shape_range() const;

    Vector< Vector<Vector2> > _decompose_in_convex();

protected:

    void _notification(int p_what);
    static void _bind_methods();
public:

    void set_trigger(bool p_trigger);
    bool is_trigger() const;

    void set_build_mode(BuildMode p_mode);
    BuildMode get_build_mode() const;

    void set_polygon(const Vector<Point2>& p_polygon);
    Vector<Point2> get_polygon() const;

    virtual Rect2 get_item_rect() const;

    int get_collision_object_first_shape() const { return shape_from; }
    int get_collision_object_last_shape() const { return shape_to; }

    CollisionPolygon2D();
};

VARIANT_ENUM_CAST( CollisionPolygon2D::BuildMode );

#endif // COLLISION_POLYGON_2D_H