virtualx-engine/scene/resources/concave_polygon_shape.cpp
Hein-Pieter van Braam 0e29f7974b Reduce unnecessary COW on Vector by make writing explicit
This commit makes operator[] on Vector const and adds a write proxy to it.  From
now on writes to Vectors need to happen through the .write proxy. So for
instance:

Vector<int> vec;
vec.push_back(10);
std::cout << vec[0] << std::endl;
vec.write[0] = 20;

Failing to use the .write proxy will cause a compilation error.

In addition COWable datatypes can now embed a CowData pointer to their data.
This means that String, CharString, and VMap no longer use or derive from
Vector.

_ALWAYS_INLINE_ and _FORCE_INLINE_ are now equivalent for debug and non-debug
builds. This is a lot faster for Vector in the editor and while running tests.
The reason why this difference used to exist is because force-inlined methods
used to give a bad debugging experience. After extensive testing with modern
compilers this is no longer the case.
2018-07-26 00:54:16 +02:00

92 lines
3.8 KiB
C++

/*************************************************************************/
/* concave_polygon_shape.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 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.h"
#include "servers/physics_server.h"
Vector<Vector3> ConcavePolygonShape::_gen_debug_mesh_lines() {
Set<DrawEdge> edges;
PoolVector<Vector3> data = get_faces();
int datalen = data.size();
ERR_FAIL_COND_V((datalen % 3) != 0, Vector<Vector3>());
PoolVector<Vector3>::Read r = data.read();
for (int i = 0; i < datalen; i += 3) {
for (int j = 0; j < 3; j++) {
DrawEdge de(r[i + j], r[i + ((j + 1) % 3)]);
edges.insert(de);
}
}
Vector<Vector3> points;
points.resize(edges.size() * 2);
int idx = 0;
for (Set<DrawEdge>::Element *E = edges.front(); E; E = E->next()) {
points.write[idx + 0] = E->get().a;
points.write[idx + 1] = E->get().b;
idx += 2;
}
return points;
}
void ConcavePolygonShape::_update_shape() {
}
void ConcavePolygonShape::set_faces(const PoolVector<Vector3> &p_faces) {
PhysicsServer::get_singleton()->shape_set_data(get_shape(), p_faces);
notify_change_to_owners();
}
PoolVector<Vector3> ConcavePolygonShape::get_faces() const {
return PhysicsServer::get_singleton()->shape_get_data(get_shape());
}
void ConcavePolygonShape::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_faces", "faces"), &ConcavePolygonShape::set_faces);
ClassDB::bind_method(D_METHOD("get_faces"), &ConcavePolygonShape::get_faces);
ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_faces", "get_faces");
}
ConcavePolygonShape::ConcavePolygonShape() :
Shape(PhysicsServer::get_singleton()->shape_create(PhysicsServer::SHAPE_CONCAVE_POLYGON)) {
//set_planes(Vector3(1,1,1));
}