Backup diff of Record and Play Character Movement (Save to MySQL)(No. 2)

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[[Tutorial for ver.3]]


* Record and play character movements (saved in MySQL) [#rfc4309f]

In this scene, you can record and play back the movement of characters and some objects to MySQL.
In this scene, you can use MySQL to record and play back the movements of characters and some objects.

** MySQL environment construction [#be7e0a5b]
** MySQL environment Construction [#be7e0a5b]

If you are using MySQL, you need to go through a few steps first.

First, build MySQL Server. The details are omitted, but the outline is as follows.

+ Install MySQL Server. The version has been confirmed in [8.0.15]. ~
You can download MySQL related information from [[here] https://dev.mysql.com/downloads/]]. (Archived Versions [[here>https://downloads.mysql.com/archives/]]) ~
It is also convenient to install MySQL Workbench.
+ Install MySQL Server. Operation confirmed with version [8.0.15]. ~
You can download MySQL product from [[here>https://dev.mysql.com/downloads/]]. (Archived Versions [[here>https://downloads.mysql.com/archives/]]) ~
MySQL Workbench is useful.
+ Create a Schema (database) named "sigverse".
+ Create a MySQL user with update privileges for "sigverse".
+ Create a table called “playbacker_motion_data” under “sigverse”. ~
+ Create a MySQL user with update authority for "sigverse".
+ Create a table named "playbacker_motion_data" under "sigverse". ~
The table creation script is as follows.
 CREATE TABLE `playbacker_motion_data` (
   `recording_id` int (11) NOT NULL,
   `elapsed_time` int (11) NOT NULL,
   `data_type` int (11) NOT NULL,
   `motion_data` text NOT NULL,
   PRIMARY KEY (`elapsed_time`,` data_type`, `recording_id`)
 ) ENGINE = InnoDB DEFAULT CHARSET = utf8;
 CREATE TABLE `playbacker_motion_data` (
   `recording_id` int(11) NOT NULL,
   `elapsed_time` int(11) NOT NULL,
   `data_type` int(11) NOT NULL,
   `motion_data` text NOT NULL,
   PRIMARY KEY (`elapsed_time`,`data_type`,`recording_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;


Also, set MySQL to use SIGVerse setting screen.
In the SIGVerse setting window, set to use MySQL.

+ Click [SIGVerse]-[SIGVerse Settings] in the Unity editor to open the SIGVerse settings screen.
+ Click [SIGVerse]-[SIGVerse Settings] in the Unity menu to open the SIGVerse setting window.
+ Check [Use MySQL] in [Define symbols Settings].

#ref(UseMySQL.png)

Since an error occurs in the Console tab of the Unity editor, add the library to the Unity editor.
Since an error occurs in the [Console] tab of the Unity editor, add the MySQL library to the Unity editor.

+ Access [[Download Site>https://downloads.mysql.com/archives/c-net/]] of Connector / NET. (Archived Versions)
+ Access [[Download Site>https://downloads.mysql.com/archives/c-net/]] of Connector/NET. (Archived Versions)
+ Select [8.0.15] for [Product Version], [.NET & Mono] for [Operating System], and click [Download].
+ Drag and drop MySql.Data.dll and Google.Protobuf.dll in the "v4.5.2" folder after unzipping the zip file under [Assets/Plugins] on the [Project] tab of the Unity editor. 
+ Check that the Unity Editor error is gone.
+ When you unzip the downloaded zip file, confirm that MySql.Data.dll and Google.Protobuf.dll exist in the "v4.5.2" folder.
+ Copy the two files by drag and drop into [Assets/Plugins] on the [Project] tab.
+ Confirm that the error on the [Console] tab has disappeared.

#ref(MySQLLibrary.png)


** Startup procedure [#t3463616]
** Startup Procedure [#t3463616]

Start the [Assets/SIGVerse/SampleScenes/Playbacker/Playbacker(.unity)] scene with reference to [[here>Tutorial for ver.3#open_scene]].


** Recording to MySQL [#kb03705c]

+ Select [Database Recorder] for Mode.
+ Make some settings such as [Unique ID] and database connection information.
+ Click the [Start] button to start recording to MySQL.
+ Operate the character with the four-way controller. ~
+ Operate the character with the arrow keys. ~
(Click [Baby icon] to show/hide the panel.)
+ Click the [Stop] button to stop recording to MySQL.

#ref(PlaybackDatabaseRecording.png)


** Playback from MySQL [#e12bcc33]

+ Select [Database Player] for Mode.
+ Set the same database connection settings and [Unique ID] set in the above recording procedure.
+ Press the [Start] button to start playback. ~
(Click [Baby icon] to show/hide the panel.)
+ When the [Stop] button is pressed or the recording time elapses, playback ends.

#ref(PlaybackDatabasePlaying.png)

Backup diff of Record and Play Character Movement (Save to MySQL) (No. 2)