mirror of
https://github.com/godotengine/godot.git
synced 2024-12-21 10:25:24 +08:00
96 lines
4.1 KiB
C++
96 lines
4.1 KiB
C++
/**************************************************************************/
|
|
/* circle_shape_2d.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* 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 */
|
|
/* 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]);
|
|
col = { Color(p_color, 1.0) };
|
|
RenderingServer::get_singleton()->canvas_item_add_polyline(p_to_rid, points, col);
|
|
}
|
|
}
|
|
|
|
CircleShape2D::CircleShape2D() :
|
|
Shape2D(PhysicsServer2D::get_singleton()->circle_shape_create()) {
|
|
_update_shape();
|
|
}
|