*misc

30 files changed, 776 insertions, 2 deletions

diff --git a/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj b/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj
index 27506d4..d3a9c40 100644
--- a/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj
+++ b/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj
@@ -81,7 +81,7 @@
       <Optimization>Disabled</Optimization>

       <SDLCheck>true</SDLCheck>

       <ConformanceMode>true</ConformanceMode>

-      <AdditionalIncludeDirectories>$(SolutionDir)..\..\..\ThirdParty;$(SolutionDir)..\..\..\ThirdParty\imgui;$(SolutionDir)..\..\..\ThirdParty\SDL2\include;$(SolutionDir)..\..\..\ThirdParty\freetype\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <AdditionalIncludeDirectories>$(SolutionDir)..\..\..\ThirdParty;$(SolutionDir)..\..\..\ThirdParty\imgui;$(SolutionDir)..\..\..\ThirdParty\SDL2\include;$(SolutionDir)..\..\..\ThirdParty\freetype\include;$(SolutionDir)..\..\..\Source;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

       <PreprocessorDefinitions>RAGDOLL_WIN;_CRT_SECURE_NO_WARNINGS;RAGDOLL_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

     </ClCompile>

     <Link>

@@ -122,7 +122,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>

       <SDLCheck>true</SDLCheck>

       <ConformanceMode>true</ConformanceMode>

-      <AdditionalIncludeDirectories>$(SolutionDir)..\..\..\ThirdParty;$(SolutionDir)..\..\..\ThirdParty\imgui;$(SolutionDir)..\..\..\ThirdParty\SDL2\include;$(SolutionDir)..\..\..\ThirdParty\freetype\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <AdditionalIncludeDirectories>$(SolutionDir)..\..\..\ThirdParty;$(SolutionDir)..\..\..\ThirdParty\imgui;$(SolutionDir)..\..\..\ThirdParty\SDL2\include;$(SolutionDir)..\..\..\ThirdParty\freetype\include;$(SolutionDir)..\..\..\Source;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

       <PreprocessorDefinitions>RAGDOLL_WIN;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>

     </ClCompile>

     <Link>

@@ -136,6 +136,7 @@
   <ItemGroup>

     <ClCompile Include="..\..\..\..\Source\Common\DataBuffer.cpp" />

     <ClCompile Include="..\..\..\..\Source\Debug\Log.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Filesystem\Filesystem.cpp" />

     <ClCompile Include="..\..\..\..\Source\Graphics\Color.cpp" />

     <ClCompile Include="..\..\..\..\Source\Graphics\CustomVertexLayout.cpp" />

     <ClCompile Include="..\..\..\..\Source\Graphics\DefaultVertexLayout.cpp" />

@@ -165,22 +166,29 @@
     <ClCompile Include="..\..\..\..\Source\GUI\UISquare.cpp" />

     <ClCompile Include="..\..\..\..\Source\GUI\UITextMesh.cpp" />

     <ClCompile Include="..\..\..\..\Source\GUI\utf8.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Local\LocalPlayer.cpp" />

     <ClCompile Include="..\..\..\..\Source\Math\Functions.cpp" />

     <ClCompile Include="..\..\..\..\Source\Network\Address.cpp" />

     <ClCompile Include="..\..\..\..\Source\Network\Connection.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Network\http.cpp" />

     <ClCompile Include="..\..\..\..\Source\Network\NetPacket.cpp" />

     <ClCompile Include="..\..\..\..\Source\Network\Socket.cpp" />

     <ClCompile Include="..\..\..\..\Source\Persistent\Database.cpp" />

     <ClCompile Include="..\..\..\..\Source\Persistent\DatabaseFile.cpp" />

     <ClCompile Include="..\..\..\..\Source\Persistent\DatabaseRedis.cpp" />

     <ClCompile Include="..\..\..\..\Source\Persistent\DatabaseSqlite.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Physics\raycast.cpp" />

     <ClCompile Include="..\..\..\..\Source\RagdollMain.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Remote\RemotePlayer.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Serialization\serialization.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Threading\Event.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\Job.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\JobSystem.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\Mutex.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\Semaphore.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\Thread.cpp" />

     <ClCompile Include="..\..\..\..\Source\Threading\WorkThread.cpp" />

+    <ClCompile Include="..\..\..\..\Source\Utilities\base64.cpp" />

     <ClCompile Include="..\..\..\..\Source\Utilities\sha1.cpp" />

     <ClCompile Include="..\..\..\..\Source\Utilities\sha256.c" />

     <ClCompile Include="..\..\..\..\ThirdParty\glad\glad.c" />

@@ -195,6 +203,7 @@
   <ItemGroup>

     <ClInclude Include="..\..\..\..\Source\Common\DataBuffer.h" />

     <ClInclude Include="..\..\..\..\Source\Debug\Log.h" />

+    <ClInclude Include="..\..\..\..\Source\Filesystem\Filesystem.h" />

     <ClInclude Include="..\..\..\..\Source\Graphics\Color.h" />

     <ClInclude Include="..\..\..\..\Source\Graphics\CustomVertexLayout.h" />

     <ClInclude Include="..\..\..\..\Source\Graphics\DefaultVertexLayout.h" />

@@ -228,6 +237,7 @@
     <ClInclude Include="..\..\..\..\Source\GUI\UISquare.h" />

     <ClInclude Include="..\..\..\..\Source\GUI\UITextMesh.h" />

     <ClInclude Include="..\..\..\..\Source\GUI\utf8.h" />

+    <ClInclude Include="..\..\..\..\Source\Local\LocalPlayer.h" />

     <ClInclude Include="..\..\..\..\Source\Math\Functions.h" />

     <ClInclude Include="..\..\..\..\Source\Math\Math.h" />

     <ClInclude Include="..\..\..\..\Source\Math\Matrix22.h" />

@@ -238,12 +248,17 @@
     <ClInclude Include="..\..\..\..\Source\Math\Vector4.hpp" />

     <ClInclude Include="..\..\..\..\Source\Network\Address.h" />

     <ClInclude Include="..\..\..\..\Source\Network\Connection.h" />

+    <ClInclude Include="..\..\..\..\Source\Network\http.h" />

     <ClInclude Include="..\..\..\..\Source\Network\NetPacket.h" />

     <ClInclude Include="..\..\..\..\Source\Network\Socket.h" />

     <ClInclude Include="..\..\..\..\Source\Persistent\Database.h" />

     <ClInclude Include="..\..\..\..\Source\Persistent\DatabaseFile.h" />

     <ClInclude Include="..\..\..\..\Source\Persistent\DatabaseRedis.h" />

     <ClInclude Include="..\..\..\..\Source\Persistent\DatabaseSqlite.h" />

+    <ClInclude Include="..\..\..\..\Source\Physics\raycast.h" />

+    <ClInclude Include="..\..\..\..\Source\Remote\RemotePlayer.h" />

+    <ClInclude Include="..\..\..\..\Source\Serialization\serialization.h" />

+    <ClInclude Include="..\..\..\..\Source\Threading\Event.h" />

     <ClInclude Include="..\..\..\..\Source\Threading\Job.h" />

     <ClInclude Include="..\..\..\..\Source\Threading\JobSystem.h" />

     <ClInclude Include="..\..\..\..\Source\Threading\Mutex.h" />

@@ -251,6 +266,7 @@
     <ClInclude Include="..\..\..\..\Source\Threading\Thread.h" />

     <ClInclude Include="..\..\..\..\Source\Utilities\Assert.h" />

     <ClInclude Include="..\..\..\..\Source\Utilities\AutoInvoke.h" />

+    <ClInclude Include="..\..\..\..\Source\Utilities\base64.h" />

     <ClInclude Include="..\..\..\..\Source\Utilities\Exception.h" />

     <ClInclude Include="..\..\..\..\Source\Utilities\md32_common.h" />

     <ClInclude Include="..\..\..\..\Source\Utilities\sha1.h" />

diff --git a/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj.filters b/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj.filters
index 63eb02b..6e0768e 100644
--- a/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj.filters
+++ b/Client/Project/VisualStudio/Ragdolls/Ragdolls/Ragdolls.vcxproj.filters
@@ -43,6 +43,27 @@
     <Filter Include="Persistent">

       <UniqueIdentifier>{c6dc4916-d04c-45ae-9cd9-868a55f979d3}</UniqueIdentifier>

     </Filter>

+    <Filter Include="Filesystem">

+      <UniqueIdentifier>{993ff0e4-3779-4143-8987-8051dcd6dbed}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Profiling">

+      <UniqueIdentifier>{a816541a-4fc2-4d86-968f-44a498544d43}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Physics">

+      <UniqueIdentifier>{983e3658-5991-4175-98be-ef907edc5199}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Remote">

+      <UniqueIdentifier>{3410850d-bd0b-4b53-92fd-bdf3da189756}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Serialization">

+      <UniqueIdentifier>{1fef6e26-4cb1-424d-933c-a343d3a4e691}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Scripting">

+      <UniqueIdentifier>{ce78bf9b-da4d-4dd9-ae65-cdc8d48f975d}</UniqueIdentifier>

+    </Filter>

+    <Filter Include="Local">

+      <UniqueIdentifier>{d614da35-9a6a-4edb-9c2f-55517c089a2b}</UniqueIdentifier>

+    </Filter>

   </ItemGroup>

   <ItemGroup>

     <ClCompile Include="..\..\..\..\ThirdParty\glad\glad.c">

@@ -214,6 +235,30 @@
     <ClCompile Include="..\..\..\..\Source\Utilities\sha256.c">

       <Filter>Utilities</Filter>

     </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Filesystem\Filesystem.cpp">

+      <Filter>Filesystem</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Network\http.cpp">

+      <Filter>Network</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Physics\raycast.cpp">

+      <Filter>Physics</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Remote\RemotePlayer.cpp">

+      <Filter>Remote</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Serialization\serialization.cpp">

+      <Filter>Serialization</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Threading\Event.cpp">

+      <Filter>Threading</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Utilities\base64.cpp">

+      <Filter>Utilities</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\..\Source\Local\LocalPlayer.cpp">

+      <Filter>Local</Filter>

+    </ClCompile>

   </ItemGroup>

   <ItemGroup>

     <ClInclude Include="..\..\..\..\ThirdParty\glad\glad.h">

@@ -447,5 +492,29 @@
     <ClInclude Include="..\..\..\..\Source\Utilities\md32_common.h">

       <Filter>Utilities</Filter>

     </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Filesystem\Filesystem.h">

+      <Filter>Filesystem</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Network\http.h">

+      <Filter>Network</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Physics\raycast.h">

+      <Filter>Physics</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Remote\RemotePlayer.h">

+      <Filter>Remote</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Serialization\serialization.h">

+      <Filter>Serialization</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Threading\Event.h">

+      <Filter>Threading</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Utilities\base64.h">

+      <Filter>Utilities</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\..\Source\Local\LocalPlayer.h">

+      <Filter>Local</Filter>

+    </ClInclude>

   </ItemGroup>

 </Project>
\ No newline at end of file
diff --git a/Client/Source/Filesystem/Filesystem.cpp b/Client/Source/Filesystem/Filesystem.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Filesystem/Filesystem.cpp
diff --git a/Client/Source/Filesystem/Filesystem.h b/Client/Source/Filesystem/Filesystem.h
new file mode 100644
index 0000000..5919022
--- /dev/null
+++ b/Client/Source/Filesystem/Filesystem.h
@@ -0,0 +1,4 @@
+#pragma once

+

+

+

diff --git a/Client/Source/Local/LocalPlayer.cpp b/Client/Source/Local/LocalPlayer.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Local/LocalPlayer.cpp
diff --git a/Client/Source/Local/LocalPlayer.h b/Client/Source/Local/LocalPlayer.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Local/LocalPlayer.h
diff --git a/Client/Source/Network/Socket.h b/Client/Source/Network/Socket.h
index e69de29..3749a34 100644
--- a/Client/Source/Network/Socket.h
+++ b/Client/Source/Network/Socket.h
@@ -0,0 +1,2 @@
+

+// UDP socket
\ No newline at end of file
diff --git a/Client/Source/Network/http.cpp b/Client/Source/Network/http.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Network/http.cpp
diff --git a/Client/Source/Network/http.h b/Client/Source/Network/http.h
new file mode 100644
index 0000000..50e9667
--- /dev/null
+++ b/Client/Source/Network/http.h
@@ -0,0 +1 @@
+#pragma once

diff --git a/Client/Source/Physics/raycast.cpp b/Client/Source/Physics/raycast.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Physics/raycast.cpp
diff --git a/Client/Source/Physics/raycast.h b/Client/Source/Physics/raycast.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Physics/raycast.h
diff --git a/Client/Source/Remote/RemotePlayer.cpp b/Client/Source/Remote/RemotePlayer.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Remote/RemotePlayer.cpp
diff --git a/Client/Source/Remote/RemotePlayer.h b/Client/Source/Remote/RemotePlayer.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Remote/RemotePlayer.h
diff --git a/Client/Source/Serialization/serialization.cpp b/Client/Source/Serialization/serialization.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Serialization/serialization.cpp
diff --git a/Client/Source/Serialization/serialization.h b/Client/Source/Serialization/serialization.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Serialization/serialization.h
diff --git a/Client/Source/Threading/Event.cpp b/Client/Source/Threading/Event.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Threading/Event.cpp
diff --git a/Client/Source/Threading/Event.h b/Client/Source/Threading/Event.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Client/Source/Threading/Event.h
diff --git a/Client/Source/Utilities/Optional.h b/Client/Source/Utilities/Optional.h
new file mode 100644
index 0000000..eda7fff
--- /dev/null
+++ b/Client/Source/Utilities/Optional.h
@@ -0,0 +1,105 @@
+/*
+Minetest
+Copyright (C) 2021  rubenwardy
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <utility>
+#include "debug.h"
+
+struct nullopt_t
+{
+};
+constexpr nullopt_t nullopt{};
+
+/**
+ * An implementation of optional for C++11, which aims to be
+ * compatible with a subset of std::optional features.
+ *
+ * Unfortunately, Minetest doesn't use C++17 yet.
+ *
+ * @tparam T The type to be stored
+ */
+template <typename T>
+class Optional
+{
+	bool m_has_value = false;
+	T m_value;
+
+public:
+	Optional() noexcept {}
+	Optional(nullopt_t) noexcept {}
+
+	Optional(const T &value) noexcept : m_has_value(true), m_value(value) {}
+	Optional(T &&value) noexcept : m_has_value(true), m_value(std::move(value)) {}
+
+	Optional(const Optional<T> &other) noexcept :
+			m_has_value(other.m_has_value), m_value(other.m_value)
+	{}
+	Optional(Optional<T> &&other) noexcept :
+			m_has_value(other.m_has_value), m_value(std::move(other.m_value))
+	{
+		other.m_has_value = false;
+	}
+
+	Optional<T> &operator=(nullopt_t) noexcept { m_has_value = false; return *this; }
+
+	Optional<T> &operator=(const Optional<T> &other) noexcept
+	{
+		if (&other == this)
+			return *this;
+		m_has_value = other.m_has_value;
+		m_value = other.m_value;
+		return *this;
+	}
+
+	Optional<T> &operator=(Optional<T> &&other) noexcept
+	{
+		if (&other == this)
+			return *this;
+		m_has_value = other.m_has_value;
+		m_value = std::move(other.m_value);
+		other.m_has_value = false;
+		return *this;
+	}
+
+	T &value()
+	{
+		FATAL_ERROR_IF(!m_has_value, "optional doesn't have value");
+		return m_value;
+	}
+
+	const T &value() const
+	{
+		FATAL_ERROR_IF(!m_has_value, "optional doesn't have value");
+		return m_value;
+	}
+
+	const T &value_or(const T &def) const { return m_has_value ? m_value : def; }
+
+	// Unchecked access consistent with std::optional
+	T* operator->() { return &m_value; }
+	const T* operator->() const { return &m_value; }
+
+	T& operator*() { return m_value; }
+	const T& operator*() const { return m_value; }
+
+	bool has_value() const noexcept { return m_has_value; }
+
+	explicit operator bool() const { return m_has_value; }
+};
diff --git a/Client/Source/Utilities/base64.cpp b/Client/Source/Utilities/base64.cpp
new file mode 100644
index 0000000..0c24552
--- /dev/null
+++ b/Client/Source/Utilities/base64.cpp
@@ -0,0 +1,154 @@
+/*
+base64.cpp and base64.h
+
+Copyright (C) 2004-2008 René Nyffenegger
+
+This source code is provided 'as-is', without any express or implied
+warranty. In no event will the author be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this source code must not be misrepresented; you must not
+   claim that you wrote the original source code. If you use this source code
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original source code.
+
+3. This notice may not be removed or altered from any source distribution.
+
+René Nyffenegger rene.nyffenegger@adp-gmbh.ch
+
+*/
+
+#include "base64.h"
+#include <iostream>
+
+static const std::string base64_chars =
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+		"abcdefghijklmnopqrstuvwxyz"
+		"0123456789+/";
+
+static const std::string base64_chars_padding_1 = "AEIMQUYcgkosw048";
+static const std::string base64_chars_padding_2 = "AQgw";
+
+static inline bool is_base64(unsigned char c)
+{
+	return (c >= '0' && c <= '9')
+			|| (c >= 'A' && c <= 'Z')
+			|| (c >= 'a' && c <= 'z')
+			|| c == '+' || c == '/';
+}
+
+bool base64_is_valid(std::string const& s)
+{
+	size_t i = 0;
+	for (; i < s.size(); ++i)
+		if (!is_base64(s[i]))
+			break;
+	unsigned char padding = 3 - ((i + 3) % 4);
+	if ((padding == 1 && base64_chars_padding_1.find(s[i - 1]) == std::string::npos)
+			|| (padding == 2 && base64_chars_padding_2.find(s[i - 1]) == std::string::npos)
+			|| padding == 3)
+		return false;
+	int actual_padding = s.size() - i;
+	// omission of padding characters is allowed
+	if (actual_padding == 0)
+		return true;
+
+	// remaining characters (max. 2) may only be padding
+	for (; i < s.size(); ++i)
+		if (s[i] != '=')
+			return false;
+	// number of padding characters needs to match
+	return padding == actual_padding;
+}
+
+std::string base64_encode(unsigned char const* bytes_to_encode, unsigned int in_len) {
+	std::string ret;
+	int i = 0;
+	int j = 0;
+	unsigned char char_array_3[3];
+	unsigned char char_array_4[4];
+
+	while (in_len--) {
+		char_array_3[i++] = *(bytes_to_encode++);
+		if (i == 3) {
+			char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
+			char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+			char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
+			char_array_4[3] = char_array_3[2] & 0x3f;
+
+			for(i = 0; (i <4) ; i++)
+				ret += base64_chars[char_array_4[i]];
+			i = 0;
+		}
+	}
+
+	if (i)
+	{
+		for(j = i; j < 3; j++)
+			char_array_3[j] = '\0';
+
+		char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
+		char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+		char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
+		char_array_4[3] = char_array_3[2] & 0x3f;
+
+		for (j = 0; (j < i + 1); j++)
+			ret += base64_chars[char_array_4[j]];
+
+	// Don't pad it with =
+		/*while((i++ < 3))
+			ret += '=';*/
+
+	}
+
+	return ret;
+
+}
+
+std::string base64_decode(std::string const& encoded_string) {
+	int in_len = encoded_string.size();
+	int i = 0;
+	int j = 0;
+	int in_ = 0;
+	unsigned char char_array_4[4], char_array_3[3];
+	std::string ret;
+
+	while (in_len-- && ( encoded_string[in_] != '=') && is_base64(encoded_string[in_])) {
+		char_array_4[i++] = encoded_string[in_]; in_++;
+		if (i ==4) {
+			for (i = 0; i <4; i++)
+				char_array_4[i] = base64_chars.find(char_array_4[i]);
+
+			char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+			char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+			char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+			for (i = 0; (i < 3); i++)
+				ret += char_array_3[i];
+			i = 0;
+		}
+	}
+
+	if (i) {
+		for (j = i; j <4; j++)
+			char_array_4[j] = 0;
+
+		for (j = 0; j <4; j++)
+			char_array_4[j] = base64_chars.find(char_array_4[j]);
+
+		char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+		char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+		char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+		for (j = 0; (j < i - 1); j++) ret += char_array_3[j];
+	}
+
+	return ret;
+}
diff --git a/Client/Source/Utilities/base64.h b/Client/Source/Utilities/base64.h
new file mode 100644
index 0000000..7f2bf13
--- /dev/null
+++ b/Client/Source/Utilities/base64.h
@@ -0,0 +1,26 @@
+/*
+Minetest
+Copyright (C) 2013-2017 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+
+bool base64_is_valid(std::string const& s);
+std::string base64_encode(unsigned char const* , unsigned int len);
+std::string base64_decode(std::string const& s);
diff --git a/Client/Source/Utilities/hex.h b/Client/Source/Utilities/hex.h
new file mode 100644
index 0000000..708f330
--- /dev/null
+++ b/Client/Source/Utilities/hex.h
@@ -0,0 +1,60 @@
+/*
+Minetest
+Copyright (C) 2013 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+
+static const char hex_chars[] = "0123456789abcdef";
+
+static inline std::string hex_encode(const char *data, unsigned int data_size)
+{
+	std::string ret;
+	ret.reserve(data_size * 2);
+
+	char buf2[3];
+	buf2[2] = '\0';
+
+	for (unsigned int i = 0; i < data_size; i++) {
+		unsigned char c = (unsigned char)data[i];
+		buf2[0] = hex_chars[(c & 0xf0) >> 4];
+		buf2[1] = hex_chars[c & 0x0f];
+		ret.append(buf2);
+	}
+
+	return ret;
+}
+
+static inline std::string hex_encode(const std::string &data)
+{
+	return hex_encode(data.c_str(), data.size());
+}
+
+static inline bool hex_digit_decode(char hexdigit, unsigned char &value)
+{
+	if (hexdigit >= '0' && hexdigit <= '9')
+		value = hexdigit - '0';
+	else if (hexdigit >= 'A' && hexdigit <= 'F')
+		value = hexdigit - 'A' + 10;
+	else if (hexdigit >= 'a' && hexdigit <= 'f')
+		value = hexdigit - 'a' + 10;
+	else
+		return false;
+	return true;
+}
diff --git a/Client/Source/metadata.cpp b/Client/Source/metadata.cpp
new file mode 100644
index 0000000..453ac1c
--- /dev/null
+++ b/Client/Source/metadata.cpp
@@ -0,0 +1,115 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "metadata.h"
+#include "log.h"
+
+/*
+	Metadata
+*/
+
+void Metadata::clear()
+{
+	m_stringvars.clear();
+	m_modified = true;
+}
+
+bool Metadata::empty() const
+{
+	return m_stringvars.empty();
+}
+
+size_t Metadata::size() const
+{
+	return m_stringvars.size();
+}
+
+bool Metadata::contains(const std::string &name) const
+{
+	return m_stringvars.find(name) != m_stringvars.end();
+}
+
+bool Metadata::operator==(const Metadata &other) const
+{
+	if (size() != other.size())
+		return false;
+
+	for (const auto &sv : m_stringvars) {
+		if (!other.contains(sv.first) || other.getString(sv.first) != sv.second)
+			return false;
+	}
+
+	return true;
+}
+
+const std::string &Metadata::getString(const std::string &name, u16 recursion) const
+{
+	StringMap::const_iterator it = m_stringvars.find(name);
+	if (it == m_stringvars.end()) {
+		static const std::string empty_string = std::string("");
+		return empty_string;
+	}
+
+	return resolveString(it->second, recursion);
+}
+
+bool Metadata::getStringToRef(
+		const std::string &name, std::string &str, u16 recursion) const
+{
+	StringMap::const_iterator it = m_stringvars.find(name);
+	if (it == m_stringvars.end()) {
+		return false;
+	}
+
+	str = resolveString(it->second, recursion);
+	return true;
+}
+
+/**
+ * Sets var to name key in the metadata storage
+ *
+ * @param name
+ * @param var
+ * @return true if key-value pair is created or changed
+ */
+bool Metadata::setString(const std::string &name, const std::string &var)
+{
+	if (var.empty()) {
+		m_stringvars.erase(name);
+		return true;
+	}
+
+	StringMap::iterator it = m_stringvars.find(name);
+	if (it != m_stringvars.end() && it->second == var) {
+		return false;
+	}
+
+	m_stringvars[name] = var;
+	m_modified = true;
+	return true;
+}
+
+const std::string &Metadata::resolveString(const std::string &str, u16 recursion) const
+{
+	if (recursion <= 1 && str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
+		return getString(str.substr(2, str.length() - 3), recursion + 1);
+	}
+
+	return str;
+}
diff --git a/Client/Source/metadata.h b/Client/Source/metadata.h
new file mode 100644
index 0000000..5333f8a
--- /dev/null
+++ b/Client/Source/metadata.h
@@ -0,0 +1,63 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "irr_v3d.h"
+#include <iostream>
+#include <vector>
+#include "util/string.h"
+
+class Metadata
+{
+	bool m_modified = false;
+public:
+	virtual ~Metadata() = default;
+
+	virtual void clear();
+	virtual bool empty() const;
+
+	bool operator==(const Metadata &other) const;
+	inline bool operator!=(const Metadata &other) const
+	{
+		return !(*this == other);
+	}
+
+	//
+	// Key-value related
+	//
+
+	size_t size() const;
+	bool contains(const std::string &name) const;
+	const std::string &getString(const std::string &name, u16 recursion = 0) const;
+	bool getStringToRef(const std::string &name, std::string &str, u16 recursion = 0) const;
+	virtual bool setString(const std::string &name, const std::string &var);
+	inline bool removeString(const std::string &name) { return setString(name, ""); }
+	const StringMap &getStrings() const
+	{
+		return m_stringvars;
+	}
+	// Add support for variable names in values
+	const std::string &resolveString(const std::string &str, u16 recursion = 0) const;
+
+	inline bool isModified() const  { return m_modified; }
+	inline void setModified(bool v) { m_modified = v; }
+protected:
+	StringMap m_stringvars;
+};
diff --git a/Documents/设计/设计.xlsx b/Documents/设计/设计.xlsx
index 1a76cea..269b802 100644
--- a/Documents/设计/设计.xlsx
+++ b/Documents/设计/设计.xlsx
diff --git a/Server/Project/RagdollServer/.vs/RagdollServer/v15/.suo b/Server/Project/RagdollServer/.vs/RagdollServer/v15/.suo
new file mode 100644
index 0000000..8fb755f
--- /dev/null
+++ b/Server/Project/RagdollServer/.vs/RagdollServer/v15/.suo
diff --git a/Server/Project/RagdollServer/.vs/RagdollServer/v15/Browse.VC.db b/Server/Project/RagdollServer/.vs/RagdollServer/v15/Browse.VC.db
new file mode 100644
index 0000000..74057cd
--- /dev/null
+++ b/Server/Project/RagdollServer/.vs/RagdollServer/v15/Browse.VC.db
diff --git a/Server/Project/RagdollServer/RagdollServer.sln b/Server/Project/RagdollServer/RagdollServer.sln
new file mode 100644
index 0000000..f1ab946
--- /dev/null
+++ b/Server/Project/RagdollServer/RagdollServer.sln
@@ -0,0 +1,31 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 15

+VisualStudioVersion = 15.0.28307.902

+MinimumVisualStudioVersion = 10.0.40219.1

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RagdollServer", "RagdollServer\RagdollServer.vcxproj", "{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|x64 = Debug|x64

+		Debug|x86 = Debug|x86

+		Release|x64 = Release|x64

+		Release|x86 = Release|x86

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Debug|x64.ActiveCfg = Debug|x64

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Debug|x64.Build.0 = Debug|x64

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Debug|x86.ActiveCfg = Debug|Win32

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Debug|x86.Build.0 = Debug|Win32

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Release|x64.ActiveCfg = Release|x64

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Release|x64.Build.0 = Release|x64

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Release|x86.ActiveCfg = Release|Win32

+		{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}.Release|x86.Build.0 = Release|Win32

+	EndGlobalSection

+	GlobalSection(SolutionProperties) = preSolution

+		HideSolutionNode = FALSE

+	EndGlobalSection

+	GlobalSection(ExtensibilityGlobals) = postSolution

+		SolutionGuid = {FCB3BA56-98AE-4D1D-B599-F7A1F1E9CF24}

+	EndGlobalSection

+EndGlobal

diff --git a/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj
new file mode 100644
index 0000000..c13234c
--- /dev/null
+++ b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj
@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <VCProjectVersion>15.0</VCProjectVersion>

+    <ProjectGuid>{8BC61D58-41D9-43F2-9B52-A97F5AF992C6}</ProjectGuid>

+    <RootNamespace>RagdollServer</RootNamespace>

+    <WindowsTargetPlatformVersion>10.0.17763.0</WindowsTargetPlatformVersion>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <UseDebugLibraries>true</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <UseDebugLibraries>false</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <UseDebugLibraries>true</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <UseDebugLibraries>false</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />

+  <ImportGroup Label="ExtensionSettings">

+  </ImportGroup>

+  <ImportGroup Label="Shared">

+  </ImportGroup>

+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <PropertyGroup Label="UserMacros" />

+  <PropertyGroup />

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">

+    <ClCompile>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>Disabled</Optimization>

+      <SDLCheck>true</SDLCheck>

+      <ConformanceMode>true</ConformanceMode>

+    </ClCompile>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

+    <ClCompile>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>Disabled</Optimization>

+      <SDLCheck>true</SDLCheck>

+      <ConformanceMode>true</ConformanceMode>

+    </ClCompile>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

+    <ClCompile>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>MaxSpeed</Optimization>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <IntrinsicFunctions>true</IntrinsicFunctions>

+      <SDLCheck>true</SDLCheck>

+      <ConformanceMode>true</ConformanceMode>

+    </ClCompile>

+    <Link>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <OptimizeReferences>true</OptimizeReferences>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <ClCompile>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>MaxSpeed</Optimization>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <IntrinsicFunctions>true</IntrinsicFunctions>

+      <SDLCheck>true</SDLCheck>

+      <ConformanceMode>true</ConformanceMode>

+    </ClCompile>

+    <Link>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <OptimizeReferences>true</OptimizeReferences>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.filters b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.filters
new file mode 100644
index 0000000..ef1ebf5
--- /dev/null
+++ b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.filters
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />
\ No newline at end of file
diff --git a/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.user b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.user
new file mode 100644
index 0000000..6e2aec7
--- /dev/null
+++ b/Server/Project/RagdollServer/RagdollServer/RagdollServer.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <PropertyGroup />

+</Project>
\ No newline at end of file