1/**************************************************************************/
2/* concave_polygon_shape_2d.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
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19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "concave_polygon_shape_2d.h"
32
33#include "core/math/geometry_2d.h"
34#include "servers/physics_server_2d.h"
35#include "servers/rendering_server.h"
36
37bool ConcavePolygonShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
38 Vector<Vector2> s = get_segments();
39 int len = s.size();
40 if (len == 0 || (len % 2) == 1) {
41 return false;
42 }
43
44 const Vector2 *r = s.ptr();
45 for (int i = 0; i < len; i += 2) {
46 Vector2 closest = Geometry2D::get_closest_point_to_segment(p_point, &r[i]);
47 if (p_point.distance_to(closest) < p_tolerance) {
48 return true;
49 }
50 }
51
52 return false;
53}
54
55void ConcavePolygonShape2D::set_segments(const Vector<Vector2> &p_segments) {
56 PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), p_segments);
57 emit_changed();
58}
59
60Vector<Vector2> ConcavePolygonShape2D::get_segments() const {
61 return PhysicsServer2D::get_singleton()->shape_get_data(get_rid());
62}
63
64void ConcavePolygonShape2D::draw(const RID &p_to_rid, const Color &p_color) {
65 Vector<Vector2> s = get_segments();
66 int len = s.size();
67 if (len == 0 || (len % 2) == 1) {
68 return;
69 }
70
71 const Vector2 *r = s.ptr();
72 for (int i = 0; i < len; i += 2) {
73 RenderingServer::get_singleton()->canvas_item_add_line(p_to_rid, r[i], r[i + 1], p_color, 2);
74 }
75}
76
77Rect2 ConcavePolygonShape2D::get_rect() const {
78 Vector<Vector2> s = get_segments();
79 int len = s.size();
80 if (len == 0) {
81 return Rect2();
82 }
83
84 Rect2 rect;
85
86 const Vector2 *r = s.ptr();
87 for (int i = 0; i < len; i++) {
88 if (i == 0) {
89 rect.position = r[i];
90 } else {
91 rect.expand_to(r[i]);
92 }
93 }
94
95 return rect;
96}
97
98real_t ConcavePolygonShape2D::get_enclosing_radius() const {
99 Vector<Vector2> data = get_segments();
100 const Vector2 *read = data.ptr();
101 real_t r = 0.0;
102 for (int i(0); i < data.size(); i++) {
103 r = MAX(read[i].length_squared(), r);
104 }
105 return Math::sqrt(r);
106}
107
108void ConcavePolygonShape2D::_bind_methods() {
109 ClassDB::bind_method(D_METHOD("set_segments", "segments"), &ConcavePolygonShape2D::set_segments);
110 ClassDB::bind_method(D_METHOD("get_segments"), &ConcavePolygonShape2D::get_segments);
111
112 ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "segments"), "set_segments", "get_segments");
113}
114
115ConcavePolygonShape2D::ConcavePolygonShape2D() :
116 Shape2D(PhysicsServer2D::get_singleton()->concave_polygon_shape_create()) {
117 Vector<Vector2> empty;
118 set_segments(empty);
119}
120