diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..ce5d445a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,10 @@
+# http://editorconfig.org/
+root = yes
+
+[*]
+indent_size = 4
+indent_style = tab
+
+[*.yml]
+indent_size = 2
+indent_style = space
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..bec13fa0
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,29 @@
+# Auto detect text files and perform LF normalization
+* text=auto
+*.php text eol=lf
+*.sh text eol=lf
+*.txt text eol=lf
+*.properties text eol=lf
+*.bat text eol=crlf
+*.cmd text eol=crlf
+*.ps1 text eol=crlf
+
+# Custom for Visual Studio
+*.cs     diff=csharp
+*.sln    merge=union
+*.csproj merge=union
+*.vbproj merge=union
+*.fsproj merge=union
+*.dbproj merge=union
+
+# Standard to msysgit
+*.doc	 diff=astextplain
+*.DOC	 diff=astextplain
+*.docx diff=astextplain
+*.DOCX diff=astextplain
+*.dot  diff=astextplain
+*.DOT  diff=astextplain
+*.pdf  diff=astextplain
+*.PDF	 diff=astextplain
+*.rtf	 diff=astextplain
+*.RTF	 diff=astextplain
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..57872d0f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/vendor/
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..02bbb60b
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
\ No newline at end of file
diff --git a/composer.json b/composer.json
new file mode 100644
index 00000000..f8e76a57
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,27 @@
+{
+    "name": "pocketmine/bedrock-protocol",
+    "description": "An implementation of the Minecraft: Bedrock Edition protocol in PHP",
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+        "pocketmine/nbt": "^0.3.0",
+        "pocketmine/color": "^0.2.0",
+        "pocketmine/math": "^0.2.6",
+        "netresearch/jsonmapper": "^4.0",
+        "ramsey/uuid": "^4.1",
+        "pocketmine/spl": "^0.4.2"
+    },
+    "require-dev": {
+        "phpstan/phpstan": "0.12.91",
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+    "autoload": {
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+            "pocketmine\\network\\mcpe\\protocol\\": "src/"
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+    },
+    "license": "LGPL-3.0",
+    "config": {
+        "sort-packages": true
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 00000000..377cd741
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,686 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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+    ],
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+            "require-dev": {
+                "phpunit/phpunit": "~7.5 || ~8.0 || ~9.0",
+                "squizlabs/php_codesniffer": "~3.5"
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+            ],
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+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "pocketmine\\color\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-3.0"
+            ],
+            "description": "Color handling library used by PocketMine-MP and related projects",
+            "support": {
+                "issues": "https://github.com/pmmp/Color/issues",
+                "source": "https://github.com/pmmp/Color/tree/0.2.0"
+            },
+            "time": "2020-12-11T01:24:32+00:00"
+        },
+        {
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+            "version": "0.2.6",
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+                "type": "git",
+                "url": "https://github.com/pmmp/Math.git",
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+            },
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+            "source": {
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+                "shasum": ""
+            },
+            "require": {
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+                "php-64bit": "*",
+                "pocketmine/binaryutils": "^0.2.0"
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+            "require-dev": {
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+            },
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+                }
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+                "source": "https://github.com/pmmp/NBT/tree/0.3.0"
+            },
+            "time": "2021-05-18T15:46:33+00:00"
+        },
+        {
+            "name": "pocketmine/spl",
+            "version": "0.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/pmmp/SPL.git",
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+            "require": {
+                "php": "^7.2 || ^8.0"
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+            "support": {
+                "issues": "https://github.com/pmmp/SPL/issues",
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+            },
+            "time": "2021-01-15T15:15:23+00:00"
+        },
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+                "squizlabs/php_codesniffer": "^3.5",
+                "vimeo/psalm": "^4.4"
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+                }
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+            "notification-url": "https://packagist.org/downloads/",
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+            "authors": [
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+                    "homepage": "https://benramsey.com"
+                }
+            ],
+            "description": "A PHP 7.2+ library for representing and manipulating collections.",
+            "keywords": [
+                "array",
+                "collection",
+                "hash",
+                "map",
+                "queue",
+                "set"
+            ],
+            "support": {
+                "issues": "https://github.com/ramsey/collection/issues",
+                "source": "https://github.com/ramsey/collection/tree/1.1.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ramsey",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/ramsey/collection",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-21T17:40:04+00:00"
+        },
+        {
+            "name": "ramsey/uuid",
+            "version": "4.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ramsey/uuid.git",
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+            },
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+            "require": {
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+            },
+            "replace": {
+                "rhumsaa/uuid": "self.version"
+            },
+            "require-dev": {
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+                "dealerdirect/phpcodesniffer-composer-installer": "^0.6.2 || ^0.7.0",
+                "doctrine/annotations": "^1.8",
+                "goaop/framework": "^2",
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+                "psy/psysh": "^0.10.0",
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+                "squizlabs/php_codesniffer": "^3.5",
+                "vimeo/psalm": "3.9.4"
+            },
+            "suggest": {
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+                "ext-uuid": "Enables the use of PeclUuidTimeGenerator and PeclUuidRandomGenerator.",
+                "paragonie/random-lib": "Provides RandomLib for use with the RandomLibAdapter",
+                "ramsey/uuid-doctrine": "Allows the use of Ramsey\\Uuid\\Uuid as Doctrine field type."
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Ramsey\\Uuid\\": "src/"
+                },
+                "files": [
+                    "src/functions.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
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+            "homepage": "https://github.com/ramsey/uuid",
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+                "guid",
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+            ],
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+                "issues": "https://github.com/ramsey/uuid/issues",
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+            },
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+            ],
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+        },
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+                "shasum": ""
+            },
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+                "php": ">=7.1"
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+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
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+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
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+                    "name": "symfony/polyfill",
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+                }
+            },
+            "autoload": {
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+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
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+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
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+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.23.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
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+                    "type": "github"
+                },
+                {
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+                    "type": "tidelift"
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+            ],
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+    ],
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+                "shasum": ""
+            },
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+                "php": "^7.1|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
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+                }
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+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan - PHP Static Analysis Tool",
+            "support": {
+                "issues": "https://github.com/phpstan/phpstan/issues",
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.91"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/phpstan",
+                    "type": "github"
+                },
+                {
+                    "url": "https://www.patreon.com/phpstan",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
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+                }
+            ],
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+        },
+        {
+            "name": "phpstan/phpstan-strict-rules",
+            "version": "0.12.10",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan-strict-rules.git",
+                "reference": "ce82a050f9da4a32e438272907e38cdd04806223"
+            },
+            "dist": {
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+                "url": "https://api.github.com/repos/phpstan/phpstan-strict-rules/zipball/ce82a050f9da4a32e438272907e38cdd04806223",
+                "reference": "ce82a050f9da4a32e438272907e38cdd04806223",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1 || ^8.0",
+                "phpstan/phpstan": "^0.12.66"
+            },
+            "require-dev": {
+                "php-parallel-lint/php-parallel-lint": "^1.2",
+                "phpstan/phpstan-phpunit": "^0.12.16",
+                "phpunit/phpunit": "^9.5"
+            },
+            "type": "phpstan-extension",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "0.12-dev"
+                },
+                "phpstan": {
+                    "includes": [
+                        "rules.neon"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PHPStan\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Extra strict and opinionated rules for PHPStan",
+            "support": {
+                "issues": "https://github.com/phpstan/phpstan-strict-rules/issues",
+                "source": "https://github.com/phpstan/phpstan-strict-rules/tree/0.12.10"
+            },
+            "time": "2021-07-04T14:57:39+00:00"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
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+    "plugin-api-version": "2.1.0"
+}
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 00000000..9bd3e30e
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,19 @@
+includes:
+	- vendor/phpstan/phpstan-strict-rules/rules.neon
+
+parameters:
+	level: 8
+	checkExplicitMixed: true
+	checkMissingCallableSignature: true
+	treatPhpDocTypesAsCertain: false
+	paths:
+		- src
+	stubFiles:
+		- tests/phpstan/stubs/JsonMapper.stub
+	reportUnmatchedIgnoredErrors: false #no other way to silence platform-specific non-warnings
+	typeAliases:
+	    #variadics don't work for this - mixed probably shouldn't work either, but for now it does
+	    #what we actually need is something that accepts an infinite number of parameters, but in the absence of that,
+	    #we'll just fill it with 10 - it's very unlikely to encounter a callable with 10 parameters anyway.
+	    anyCallable: 'callable(mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed) : mixed'
+	    anyClosure: '\Closure(mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed, mixed) : mixed'
diff --git a/tests/phpstan/stubs/JsonMapper.stub b/tests/phpstan/stubs/JsonMapper.stub
new file mode 100644
index 00000000..e597a35c
--- /dev/null
+++ b/tests/phpstan/stubs/JsonMapper.stub
@@ -0,0 +1,19 @@
+<?php
+
+//possible bug in phpstan requires this to be defined here
+class JsonMapper_Exception extends \Exception{}
+
+class JsonMapper{
+
+	/**
+	 * @template TModel of object
+	 *
+	 * @param mixed[]|object $json
+	 * @param TModel $object
+	 *
+	 * @return TModel
+	 *
+	 * @throws JsonMapper_Exception
+	 */
+	public function map($json, object $object) : object{}
+}