/*************************************************************************/
/*  circle_shape_2d.cpp                                                  */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
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/* 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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/*************************************************************************/
#include "circle_shape_2d.h"

#include "servers/physics_2d_server.h"
#include "servers/visual_server.h"
void CircleShape2D::_update_shape() {

	Physics2DServer::get_singleton()->shape_set_data(get_rid(), radius);
	emit_changed();
}

void CircleShape2D::set_radius(real_t p_radius) {

	radius = p_radius;
	_update_shape();
}

real_t CircleShape2D::get_radius() const {

	return radius;
}

void CircleShape2D::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("set_radius", "radius"), &CircleShape2D::set_radius);
	ObjectTypeDB::bind_method(_MD("get_radius"), &CircleShape2D::get_radius);

	ADD_PROPERTY(PropertyInfo(Variant::REAL, "radius", PROPERTY_HINT_RANGE, "0.01,16384,0.5"), _SCS("set_radius"), _SCS("get_radius"));
}

Rect2 CircleShape2D::get_rect() const {
	Rect2 rect;
	rect.pos = -Point2(get_radius(), get_radius());
	rect.size = Point2(get_radius(), get_radius()) * 2.0;
	return rect;
}

void CircleShape2D::draw(const RID &p_to_rid, const Color &p_color) {

	Vector<Vector2> points;
	for (int i = 0; i < 24; i++) {

		points.push_back(Vector2(Math::cos(i * Math_PI * 2 / 24.0), Math::sin(i * Math_PI * 2 / 24.0)) * get_radius());
	}

	Vector<Color> col;
	col.push_back(p_color);
	VisualServer::get_singleton()->canvas_item_add_polygon(p_to_rid, points, col);
}

CircleShape2D::CircleShape2D()
	: Shape2D(Physics2DServer::get_singleton()->shape_create(Physics2DServer::SHAPE_CIRCLE)) {

	radius = 10;
	_update_shape();
}