virtualx-engine/scene/resources/concave_polygon_shape_2d.cpp
2020-05-14 21:57:34 +02:00

118 lines
4.4 KiB
C++

/*************************************************************************/
/* concave_polygon_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "concave_polygon_shape_2d.h"
#include "servers/physics_server_2d.h"
#include "servers/rendering_server.h"
bool ConcavePolygonShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
Vector<Vector2> s = get_segments();
int len = s.size();
if (len == 0 || (len % 2) == 1) {
return false;
}
const Vector2 *r = s.ptr();
for (int i = 0; i < len; i += 2) {
Vector2 closest = Geometry::get_closest_point_to_segment_2d(p_point, &r[i]);
if (p_point.distance_to(closest) < p_tolerance) {
return true;
}
}
return false;
}
void ConcavePolygonShape2D::set_segments(const Vector<Vector2> &p_segments) {
PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), p_segments);
emit_changed();
}
Vector<Vector2> ConcavePolygonShape2D::get_segments() const {
return PhysicsServer2D::get_singleton()->shape_get_data(get_rid());
}
void ConcavePolygonShape2D::draw(const RID &p_to_rid, const Color &p_color) {
Vector<Vector2> s = get_segments();
int len = s.size();
if (len == 0 || (len % 2) == 1) {
return;
}
const Vector2 *r = s.ptr();
for (int i = 0; i < len; i += 2) {
RenderingServer::get_singleton()->canvas_item_add_line(p_to_rid, r[i], r[i + 1], p_color, 2);
}
}
Rect2 ConcavePolygonShape2D::get_rect() const {
Vector<Vector2> s = get_segments();
int len = s.size();
if (len == 0) {
return Rect2();
}
Rect2 rect;
const Vector2 *r = s.ptr();
for (int i = 0; i < len; i++) {
if (i == 0) {
rect.position = r[i];
} else {
rect.expand_to(r[i]);
}
}
return rect;
}
real_t ConcavePolygonShape2D::get_enclosing_radius() const {
Vector<Vector2> data = get_segments();
const Vector2 *read = data.ptr();
real_t r = 0;
for (int i(0); i < data.size(); i++) {
r = MAX(read[i].length_squared(), r);
}
return Math::sqrt(r);
}
void ConcavePolygonShape2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_segments", "segments"), &ConcavePolygonShape2D::set_segments);
ClassDB::bind_method(D_METHOD("get_segments"), &ConcavePolygonShape2D::get_segments);
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "segments"), "set_segments", "get_segments");
}
ConcavePolygonShape2D::ConcavePolygonShape2D() :
Shape2D(PhysicsServer2D::get_singleton()->concave_polygon_shape_create()) {
Vector<Vector2> empty;
set_segments(empty);
}