1/**************************************************************************/
2/* convex_polygon_shape_3d.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
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8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
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13/* "Software"), to deal in the Software without restriction, including */
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29/**************************************************************************/
30
31#include "convex_polygon_shape_3d.h"
32#include "core/math/convex_hull.h"
33#include "servers/physics_server_3d.h"
34
35Vector<Vector3> ConvexPolygonShape3D::get_debug_mesh_lines() const {
36 Vector<Vector3> poly_points = get_points();
37
38 if (poly_points.size() > 3) {
39 Vector<Vector3> varr = Variant(poly_points);
40 Geometry3D::MeshData md;
41 Error err = ConvexHullComputer::convex_hull(varr, md);
42 if (err == OK) {
43 Vector<Vector3> lines;
44 lines.resize(md.edges.size() * 2);
45 for (uint32_t i = 0; i < md.edges.size(); i++) {
46 lines.write[i * 2 + 0] = md.vertices[md.edges[i].vertex_a];
47 lines.write[i * 2 + 1] = md.vertices[md.edges[i].vertex_b];
48 }
49 return lines;
50 }
51 }
52
53 return Vector<Vector3>();
54}
55
56real_t ConvexPolygonShape3D::get_enclosing_radius() const {
57 Vector<Vector3> data = get_points();
58 const Vector3 *read = data.ptr();
59 real_t r = 0.0;
60 for (int i(0); i < data.size(); i++) {
61 r = MAX(read[i].length_squared(), r);
62 }
63 return Math::sqrt(r);
64}
65
66void ConvexPolygonShape3D::_update_shape() {
67 PhysicsServer3D::get_singleton()->shape_set_data(get_shape(), points);
68 Shape3D::_update_shape();
69}
70
71void ConvexPolygonShape3D::set_points(const Vector<Vector3> &p_points) {
72 points = p_points;
73 _update_shape();
74 emit_changed();
75}
76
77Vector<Vector3> ConvexPolygonShape3D::get_points() const {
78 return points;
79}
80
81void ConvexPolygonShape3D::_bind_methods() {
82 ClassDB::bind_method(D_METHOD("set_points", "points"), &ConvexPolygonShape3D::set_points);
83 ClassDB::bind_method(D_METHOD("get_points"), &ConvexPolygonShape3D::get_points);
84
85 ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "points"), "set_points", "get_points");
86}
87
88ConvexPolygonShape3D::ConvexPolygonShape3D() :
89 Shape3D(PhysicsServer3D::get_singleton()->shape_create(PhysicsServer3D::SHAPE_CONVEX_POLYGON)) {
90}
91