/**************************************************************************/
/*  polygon2d_navigation_geometry_parser_2d.cpp                           */
/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "polygon2d_navigation_geometry_parser_2d.h"

#include "scene/2d/polygon_2d.h"

#include "scene/resources/navigation_2d/navigation_mesh_source_geometry_data_2d.h"
#include "scene/resources/navigation_2d/navigation_polygon.h"

bool Polygon2DNavigationGeometryParser2D::parses_node(Node *p_node) {
	return (Object::cast_to<Polygon2D>(p_node) != nullptr);
}

void Polygon2DNavigationGeometryParser2D::parse_geometry(Node *p_node, Ref<NavigationPolygon> p_navigation_polygon, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry) {
	NavigationPolygon::ParsedGeometryType parsed_geometry_type = p_navigation_polygon->get_parsed_geometry_type();

	if (Object::cast_to<Polygon2D>(p_node) && parsed_geometry_type != NavigationPolygon::PARSED_GEOMETRY_STATIC_COLLIDERS) {
		Polygon2D *polygon_2d = Object::cast_to<Polygon2D>(p_node);

		const Transform2D transform = polygon_2d->get_global_transform();

		PoolVector<Vector2> shape_outline = polygon_2d->get_polygon();
		PoolVector<Vector2>::Write shape_outline_write = shape_outline.write();
		for (int i = 0; i < shape_outline.size(); i++) {
			shape_outline_write[i] = transform.xform(shape_outline[i]);
		}

		p_source_geometry->add_obstruction_outline(shape_outline);
	}
}
