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120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/*************************************************************************/
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/* concave_polygon_shape_2d.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "concave_polygon_shape_2d.h"
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#include "core/math/geometry_2d.h"
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#include "servers/physics_server_2d.h"
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#include "servers/rendering_server.h"
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bool ConcavePolygonShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
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Vector<Vector2> s = get_segments();
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int len = s.size();
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if (len == 0 || (len % 2) == 1) {
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return false;
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}
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const Vector2 *r = s.ptr();
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for (int i = 0; i < len; i += 2) {
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Vector2 closest = Geometry2D::get_closest_point_to_segment(p_point, &r[i]);
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if (p_point.distance_to(closest) < p_tolerance) {
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return true;
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}
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}
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return false;
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}
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void ConcavePolygonShape2D::set_segments(const Vector<Vector2> &p_segments) {
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PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), p_segments);
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emit_changed();
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}
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Vector<Vector2> ConcavePolygonShape2D::get_segments() const {
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return PhysicsServer2D::get_singleton()->shape_get_data(get_rid());
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}
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void ConcavePolygonShape2D::draw(const RID &p_to_rid, const Color &p_color) {
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Vector<Vector2> s = get_segments();
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int len = s.size();
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if (len == 0 || (len % 2) == 1) {
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return;
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}
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const Vector2 *r = s.ptr();
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for (int i = 0; i < len; i += 2) {
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RenderingServer::get_singleton()->canvas_item_add_line(p_to_rid, r[i], r[i + 1], p_color, 2);
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}
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}
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Rect2 ConcavePolygonShape2D::get_rect() const {
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Vector<Vector2> s = get_segments();
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int len = s.size();
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if (len == 0) {
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return Rect2();
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}
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Rect2 rect;
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const Vector2 *r = s.ptr();
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for (int i = 0; i < len; i++) {
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if (i == 0) {
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rect.position = r[i];
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} else {
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rect.expand_to(r[i]);
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}
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}
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return rect;
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}
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real_t ConcavePolygonShape2D::get_enclosing_radius() const {
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Vector<Vector2> data = get_segments();
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const Vector2 *read = data.ptr();
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real_t r = 0;
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for (int i(0); i < data.size(); i++) {
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r = MAX(read[i].length_squared(), r);
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}
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return Math::sqrt(r);
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}
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void ConcavePolygonShape2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_segments", "segments"), &ConcavePolygonShape2D::set_segments);
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ClassDB::bind_method(D_METHOD("get_segments"), &ConcavePolygonShape2D::get_segments);
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ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "segments"), "set_segments", "get_segments");
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}
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ConcavePolygonShape2D::ConcavePolygonShape2D() :
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Shape2D(PhysicsServer2D::get_singleton()->concave_polygon_shape_create()) {
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Vector<Vector2> empty;
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set_segments(empty);
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}
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