mirror of
https://github.com/godotengine/godot.git
synced 2024-11-21 03:18:37 +08:00
cbbcf72703
-Ability to set compression to ENet packets (check API) -Fixed small bug in StringDB that lead to duplicate empty strings -Added a new class, StreamPeerBuffer, useful to create your own tightly packed data
438 lines
8.8 KiB
C++
438 lines
8.8 KiB
C++
/*************************************************************************/
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/* path_db.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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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 "path_db.h"
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#include "print_string.h"
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uint32_t NodePath::hash() const {
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if (!data)
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return 0;
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uint32_t h = data->absolute ? 1 : 0;
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int pc = data->path.size();
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const StringName *sn = data->path.ptr();
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for(int i=0;i<pc;i++) {
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h = h ^ sn[i].hash();
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}
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int spc = data->subpath.size();
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const StringName *ssn = data->subpath.ptr();
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for(int i=0;i<spc;i++) {
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h = h ^ ssn[i].hash();
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}
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h = h ^ data->property.hash();
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return h;
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}
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void NodePath::prepend_period() {
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if (data->path.size() && data->path[0].operator String()!=".") {
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data->path.insert(0,".");
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}
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}
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bool NodePath::is_absolute() const {
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if (!data)
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return false;
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return data->absolute;
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}
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int NodePath::get_name_count() const {
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if (!data)
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return 0;
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return data->path.size();
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}
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StringName NodePath::get_name(int p_idx) const {
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ERR_FAIL_COND_V(!data,StringName());
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ERR_FAIL_INDEX_V(p_idx,data->path.size(),StringName());
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return data->path[p_idx];
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}
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StringName NodePath::get_property() const {
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if (!data)
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return StringName();
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return data->property;
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}
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int NodePath::get_subname_count() const {
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if (!data)
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return 0;
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return data->subpath.size();
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}
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StringName NodePath::get_subname(int p_idx) const {
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ERR_FAIL_COND_V(!data,StringName());
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ERR_FAIL_INDEX_V(p_idx,data->subpath.size(),StringName());
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return data->subpath[p_idx];
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}
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void NodePath::unref() {
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if (data && data->refcount.unref()) {
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memdelete(data);
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}
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data=NULL;
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}
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bool NodePath::operator==(const NodePath& p_path) const {
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if (data==p_path.data)
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return true;
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if (!data || !p_path.data)
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return false;
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if (data->absolute != p_path.data->absolute)
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return false;
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if (data->path.size() != p_path.data->path.size())
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return false;
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if (data->subpath.size() != p_path.data->subpath.size())
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return false;
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if (data->property != p_path.data->property)
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return false;
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for (int i=0;i<data->path.size();i++) {
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if (data->path[i]!=p_path.data->path[i])
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return false;
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}
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for (int i=0;i<data->subpath.size();i++) {
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if (data->subpath[i]!=p_path.data->subpath[i])
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return false;
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}
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return true;
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}
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bool NodePath::operator!=(const NodePath& p_path) const {
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return (!(*this == p_path));
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}
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void NodePath::operator=(const NodePath& p_path) {
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if (this==&p_path)
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return;
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unref();
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if (p_path.data && p_path.data->refcount.ref()) {
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data=p_path.data;
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}
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}
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NodePath::operator String() const {
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if (!data)
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return String();
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String ret;
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if (data->absolute)
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ret="/";
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for (int i=0;i<data->path.size();i++) {
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if (i>0)
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ret+="/";
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ret+=data->path[i].operator String();
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}
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for (int i=0;i<data->subpath.size();i++) {
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ret+=":"+data->subpath[i].operator String();
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}
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if (data->property.operator String()!="")
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ret+=":"+String(data->property);
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return ret;
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}
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NodePath::NodePath(const NodePath& p_path) {
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data=NULL;
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if (p_path.data && p_path.data->refcount.ref()) {
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data=p_path.data;
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}
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}
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Vector<StringName> NodePath::get_names() const {
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if (data)
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return data->path;
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return Vector<StringName>();
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}
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Vector<StringName> NodePath::get_subnames() const{
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if (data)
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return data->subpath;
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return Vector<StringName>();
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}
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NodePath NodePath::rel_path_to(const NodePath& p_np) const {
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ERR_FAIL_COND_V( !is_absolute(), NodePath() );
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ERR_FAIL_COND_V( !p_np.is_absolute(), NodePath() );
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Vector<StringName> src_dirs = get_names();
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Vector<StringName> dst_dirs = p_np.get_names();
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//find common parent
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int common_parent=0;
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while(true) {
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if (src_dirs.size()==common_parent)
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break;
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if (dst_dirs.size()==common_parent)
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break;
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if (src_dirs[common_parent]!=dst_dirs[common_parent])
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break;
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common_parent++;
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}
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common_parent--;
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Vector<StringName> relpath;
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for(int i=src_dirs.size()-1;i>common_parent;i--) {
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relpath.push_back("..");
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}
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for(int i=common_parent+1;i<dst_dirs.size();i++) {
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relpath.push_back(dst_dirs[i]);
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}
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if (relpath.size()==0)
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relpath.push_back(".");
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return NodePath(relpath,p_np.get_subnames(),false,p_np.get_property());
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}
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NodePath::NodePath(const Vector<StringName>& p_path,bool p_absolute,const String& p_property) {
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data=NULL;
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if (p_path.size()==0)
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return;
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data = memnew( Data );
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data->refcount.init();
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data->absolute=p_absolute;
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data->path=p_path;
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data->property=p_property;
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}
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NodePath::NodePath(const Vector<StringName>& p_path,const Vector<StringName>& p_subpath,bool p_absolute,const String& p_property) {
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data=NULL;
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if (p_path.size()==0)
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return;
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data = memnew( Data );
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data->refcount.init();
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data->absolute=p_absolute;
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data->path=p_path;
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data->subpath=p_subpath;
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data->property=p_property;
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}
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void NodePath::simplify() {
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if (!data)
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return;
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for(int i=0;i<data->path.size();i++) {
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if (data->path.size()==1)
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break;
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if (data->path[i].operator String()==".") {
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data->path.remove(i);
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i--;
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} else if (data->path[i].operator String()==".." && i>0 && data->path[i-1].operator String()!="." && data->path[i-1].operator String()!="..") {
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//remove both
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data->path.remove(i-1);
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data->path.remove(i-1);
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i-=2;
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if (data->path.size()==0) {
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data->path.push_back(".");
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break;
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}
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}
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}
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}
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NodePath NodePath::simplified() const {
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NodePath np=*this;
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np.simplify();
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return np;
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}
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NodePath::NodePath(const String& p_path) {
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data=NULL;
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if (p_path.length()==0)
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return;
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String path=p_path;
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StringName property;
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Vector<StringName> subpath;
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int absolute=(path[0]=='/')?1:0;;
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bool last_is_slash=true;
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int slices=0;
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int subpath_pos=path.find(":");
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if (subpath_pos!=-1) {
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int from=subpath_pos+1;
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for (int i=from;i<=path.length();i++) {
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if (path[i]==':' || path[i]==0) {
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String str = path.substr(from,i-from);
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if (path[i]==':') {
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if (str=="") {
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ERR_EXPLAIN("Invalid NodePath: "+p_path);
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ERR_FAIL();
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}
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subpath.push_back(str);
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} else {
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//property can be empty
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property=str;
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}
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from=i+1;
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}
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}
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path=path.substr(0,subpath_pos);
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}
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for (int i=absolute;i<path.length();i++) {
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if (path[i]=='/') {
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last_is_slash=true;
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} else {
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if (last_is_slash)
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slices++;
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last_is_slash=false;
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}
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}
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if (slices==0 && !absolute && !property)
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return;
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data = memnew( Data );
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data->refcount.init();
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data->absolute=absolute?true:false;
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data->property=property;
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data->subpath=subpath;
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if (slices==0)
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return;
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data->path.resize(slices);
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last_is_slash=true;
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int from=absolute;
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int slice=0;
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for (int i=absolute;i<path.length()+1;i++) {
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if (path[i]=='/' || path[i]==0) {
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if (!last_is_slash) {
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String name=path.substr(from,i-from);
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ERR_FAIL_INDEX( slice,data->path.size() );
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data->path[slice++]=name;
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}
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from=i+1;
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last_is_slash=true;
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} else {
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last_is_slash=false;
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}
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}
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}
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bool NodePath::is_empty() const {
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return !data;
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}
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NodePath::NodePath() {
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data=NULL;
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}
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NodePath::~NodePath() {
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unref();
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}
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