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/*************************************************************************/
/* circle_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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 */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "circle_shape_2d.h"
#include "servers/physics_server_2d.h"
#include "servers/rendering_server.h"
bool CircleShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
return p_point.length() < get_radius() + p_tolerance;
}
void CircleShape2D::_update_shape() {
PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), radius);
emit_changed();
}
void CircleShape2D::set_radius(real_t p_radius) {
ERR_FAIL_COND_MSG(p_radius < 0, "CircleShape2D radius cannot be negative.");
radius = p_radius;
_update_shape();
}
real_t CircleShape2D::get_radius() const {
return radius;
}
void CircleShape2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_radius", "radius"), &CircleShape2D::set_radius);
ClassDB::bind_method(D_METHOD("get_radius"), &CircleShape2D::get_radius);
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater,suffix:px"), "set_radius", "get_radius");
}
Rect2 CircleShape2D::get_rect() const {
Rect2 rect;
rect.position = -Point2(get_radius(), get_radius());
rect.size = Point2(get_radius(), get_radius()) * 2.0;
return rect;
}
real_t CircleShape2D::get_enclosing_radius() const {
return radius;
}
void CircleShape2D::draw(const RID &p_to_rid, const Color &p_color) {
Vector<Vector2> points;
points.resize(24);
const real_t turn_step = Math_TAU / 24.0;
for (int i = 0; i < 24; i++) {
points.write[i] = Vector2(Math::cos(i * turn_step), Math::sin(i * turn_step)) * get_radius();
}
Vector<Color> col = { p_color };
RenderingServer::get_singleton()->canvas_item_add_polygon(p_to_rid, points, col);
if (is_collision_outline_enabled()) {
points.push_back(points[0]);
RenderingServer::get_singleton()->canvas_item_add_polyline(p_to_rid, points, col);
}
}
CircleShape2D::CircleShape2D() :
Shape2D(PhysicsServer2D::get_singleton()->circle_shape_create()) {
_update_shape();
}
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