https:\/\/github.com\/google\/flatbuffers\/releases<\/a><\/p>\n\n\n\n
or you can simply compile the bleeding edge version yourself like a pro ( not recommended ) : You first either compile or simply download the latest flatc.exe<\/strong> file, What I did next was create a separate folder for my compiler and schema like this :<\/p>\n\n\n\n And instead of hurting my fingers by writing same command to compile over and over again,\u00a0I simply made this dumb batch script (\u00a0compile.bat<\/strong>\u00a0) which contains these lines : <\/p>\n\n\n\n This executes flatc with parameters such as \u201c-n\u201d for c# code generation, \u201c\u2013gen-onefile\u201d for generating all classes inside one .cs file which is optional, and finally \u201c@pause\u201d which is also completely optional but it prevents from the console window from closing automatically ( useful when you have compile errors ).<\/p>\n\n\n\n And for demonstration purposes, I\u2019ll use a demo\u00a0SaveSchema.txt file :<\/p>\n\n\n\n The schema file is what defines the structure of the save, and what values are gonna be saved. Once you execute compile.bat it\u2019ll create a new file named \u201cSavedSchema.cs\u201d<\/p>\n\n\n\n latc now generated several classes with names such as \u201cWeaponClassesOrWhatever\u201d<\/p>\n\n\n\n This file is your whole loading and saving system for that schema, this file is now your ultimate file.<\/p>\n\n\n\n The generated .cs file contains all classes and functions required to save and load data from and to flatbuffers. But in order to load, we\u2019ll need to save something first.<\/p>\n\n\n\n Place that generated file into your project<\/strong> Then place this code :<\/p>\n\n\n\n The way you write your data is ORDER <\/strong>DEPENDENT<\/strong>. So what happens here is : The saving part can be really tricky, I advise you to read this page <\/a>to have a better understanding on how to store data.<\/em><\/p>\n\n\n\n Reading can be done in any order you want, if you want you don\u2019t even need to go through\u00a0all values because flatbuffers work like magic !<\/p>\n\n\n\n There you go !<\/p>\n\n\n\n We tested flatbuffers on all major mobile platforms ( iOS, Android, Amazon Os, Windows Phone ) we\u2019re building on and it works pretty well.<\/p>\n\n\n\n If you want the full working sample code along with compiled flatbuffer files flatc.exe and flatbuffers.dll, then download this file :<\/p>\n\n\n\n 1- First step is to get the \u201cflatc\u201d compiler and \u201c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/3893"}],"collection":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3893"}],"version-history":[{"count":2,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/3893\/revisions"}],"predecessor-version":[{"id":3898,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/3893\/revisions\/3898"}],"wp:attachment":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
https:\/\/github.com\/google\/flatbuffers<\/a><\/p>\n\n\n\n
then you go to \u201c\\net\\FlatBuffers\u201d folder inside the source and open up \u201cFlatBuffers.csproj\u201d
and compile it to get the \u201cFlatBuffers.dll\u201d which you\u2019ll need to put inside your unity project<\/strong> ( I put it inside assets\/plugins folder ).<\/p>\n\n\n\n![\"Captur52423e\"](\"http:\/\/blog.coolcoding.cn\/wp-content\/uploads\/2021\/05\/Captur52423e.png\")
<\/a><\/figure>\n\n\n\nflatc -n SaveSchema.txt --gen-onefile\n@pause<\/code><\/pre>\n\n\n\n\/\/ example save file\n\nnamespace CompanyNamespaceWhatever;\n\nenum Color : byte { Red = 1, Green, Blue }\n\nunion WeaponClassesOrWhatever { Sword, Gun }\n\nstruct Vec3 {\n x:float;\n y:float;\n z:float;\n}\n\ntable GameDataWhatever {\n pos:Vec3;\n mana:short = 150;\n hp:short = 100;\n name:string;\n inventory:[ubyte];\n color:Color = Blue;\n weapon:WeaponClassesOrWhatever;\n}\n\ntable Sword {\n damage:int = 10;\n distance:short = 5;\n}\n\ntable Gun {\n damage:int = 500;\n reloadspeed:short = 2;\n}\n\nroot_type GameDataWhatever;\nfile_identifier \"WHAT\";<\/code><\/pre>\n\n\n\n
For more info on the schema syntax please read this official doc page<\/a>.<\/em><\/p>\n\n\n\n![\"Captu4545re\"\/](\"http:\/\/blog.coolcoding.cn\/wp-content\/uploads\/2021\/05\/Captu4545re.png\")
<\/figure>\n\n\n\n2- Next step, how do we save our data?<\/h1>\n\n\n\n
( Also don\u2019t forget to place \u201cFlatBuffers.dll\u201d <\/strong>in your project or else you\u2019re gonna see some errors )<\/p>\n\n\n\n\/\/ Create flatbuffer class\nFlatBufferBuilder fbb = new FlatBufferBuilder(1);\n\n\/\/ Create our sword for GameDataWhatever\n\/\/------------------------------------------------------\n \nWeaponClassesOrWhatever weaponType = WeaponClassesOrWhatever.Sword;\nSword.StartSword(fbb);\nSword.AddDamage(fbb, 123);\nSword.AddDistance(fbb, 999);\nOffset<Sword> offsetWeapon = Sword.EndSword(fbb);\n \n\/*\n\/\/ For gun uncomment this one and remove the sword one\nWeaponClassesOrWhatever weaponType = WeaponClassesOrWhatever.Gun;\nGun.StartGun(fbb);\nGun.AddDamage(fbb, 123);\nGun.AddReloadspeed(fbb, 999);\nOffset<Gun> offsetWeapon = Gun.EndGun(fbb);\n*\/\n\/\/------------------------------------------------------\n\n\/\/ Create strings for GameDataWhatever\n\/\/------------------------------------------------------\nStringOffset cname = fbb.CreateString(\"Test String ! time : \" + DateTime.Now);\n\/\/------------------------------------------------------\n\n\/\/ Create GameDataWhatever object we will store string and weapon in\n\/\/------------------------------------------------------\nGameDataWhatever.StartGameDataWhatever(fbb);\n\nGameDataWhatever.AddName(fbb, cname);\nGameDataWhatever.AddPos(fbb, Vec3.CreateVec3(fbb, 1, 2, 1)); \/\/ structs can be inserted directly, no need to be defined earlier\nGameDataWhatever.AddColor(fbb, CompanyNamespaceWhatever.Color.Red);\n\n\/\/Store weapon\nGameDataWhatever.AddWeaponType(fbb, weaponType);\nGameDataWhatever.AddWeapon(fbb, offsetWeapon.Value);\n\nvar offset = GameDataWhatever.EndGameDataWhatever(fbb);\n\/\/------------------------------------------------------\n\nGameDataWhatever.FinishGameDataWhateverBuffer(fbb, offset);\n\n\/\/ Save the data into \"SAVE_FILENAME.whatever\" file, name doesn't matter obviously\nusing (var ms = new MemoryStream(fbb.DataBuffer.Data, fbb.DataBuffer.Position, fbb.Offset)) {\n File.WriteAllBytes(\"SAVE_FILENAME.whatever\", ms.ToArray());\n Debug.Log(\"SAVED !\");\n}<\/code><\/pre>\n\n\n\n
You always have to create items from inside out<\/strong>.
Starting from everything that object contains ( such as strings, arrays, other objects ) to the object itself.
Basically, you have to create objects upfront before setting them inside another object.<\/p>\n\n\n\n
We create the weapon and string first because it\u2019s gonna be inside the GameDataWhatever.
Everything that can have a variable length needs to be setup first before it is inserted in the buffer.
And only then once we have them setup, we create GameDataWhatever in which we\u2019re gonna set those values.<\/p>\n\n\n\n3- Finally, reading the file is a piece of cake.<\/h1>\n\n\n\n
ByteBuffer bb = new ByteBuffer(File.ReadAllBytes(\"SAVE_FILENAME.whatever\"));\n\nif (!GameDataWhatever.GameDataWhateverBufferHasIdentifier(bb)) {\n throw new Exception(\"Identifier test failed, you sure the identifier is identical to the generated schema's one?\");\n}\n\nGameDataWhatever data = GameDataWhatever.GetRootAsGameDataWhatever(bb);\n\nDebug.Log(\"LOADED DATA : \");\nDebug.Log(\"NAME : \" + data.Name);\nDebug.Log(\"POS : \" + data.Pos.X + \", \" + data.Pos.Y + \", \" + data.Pos.Z);\nDebug.Log(\"COLOR : \" + data.Color);\n\nDebug.Log(\"WEAPON TYPE : \" + data.WeaponType);\n\nswitch (data.WeaponType) {\n case WeaponClassesOrWhatever.Sword:\n Sword sword = new Sword();\n data.GetWeapon<Sword>(sword);\n Debug.Log(\"SWORD DAMAGE : \" + sword.Damage);\n break;\n case WeaponClassesOrWhatever.Gun:\n Gun gun = new Gun();\n data.GetWeapon<Gun>(gun);\n Debug.Log(\"GUN RELOAD SPEED : \" + gun.Reloadspeed);\n break;\n default:\n break;\n}<\/code><\/pre>\n\n\n\n4- Source Code for Unity<\/h1>\n\n\n\n