/**************************************************************************/
/* circle_shape_2d.cpp */
/**************************************************************************/
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/* GODOT ENGINE */
/* https://godotengine.org */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
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#include "circle_shape_2d.h"
#include "servers/physics_2d_server.h"
#include "servers/visual_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() {
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() {
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::REAL, "radius", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "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;
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);
if (is_collision_outline_enabled()) {
VisualServer::get_singleton()->canvas_item_add_polyline(p_to_rid, points, col, 1.0, true);
// Draw the last segment as it's not drawn by `canvas_item_add_polyline()`.
VisualServer::get_singleton()->canvas_item_add_line(p_to_rid, points[points.size() - 1], points[0], p_color, 1.0, true);
}
}
CircleShape2D::CircleShape2D() :
Shape2D(Physics2DServer::get_singleton()->circle_shape_create()) {
radius = 10;<--- Variable 'radius' is assigned in constructor body. Consider performing initialization in initialization list. [+]When an object of a class is created, the constructors of all member variables are called consecutively in the order the variables are declared, even if you don't explicitly write them to the initialization list. You could avoid assigning 'radius' a value by passing the value to the constructor in the initialization list.
_update_shape();
}