Technical/Mount-Controllers.md

@@ -39,3 +39,28 @@ Like `flying`, but the mounted player is not able to dismount on its own
 ##
 
 ## Meta Controllers
+
+Named after [Metaskills](https://git.lumine.io/mythiccraft/MythicMobs/-/wikis/Skills/Metaskills), meta controller is a
+special type mount controllers unique to MythicMobs. It allows users to create custom mount controller with the use of
+skill configs.
+
+Meta controllers are called each tick, and every call has special
+skill-scoped [variables](https://git.lumine.io/mythiccraft/MythicMobs/-/wikis/Skills/Variables) that contains
+entity-specific data such as WASD inputs, speed, velocity etc. To obtain these values, use `skill.meg:[variable_name]`.
+To use them as placeholders, use `<skill.var.meg:[variable_name]>`. Here is a list of variables:
+
+| Variable  | Description                                                                                                              | Type    |
+|-----------|--------------------------------------------------------------------------------------------------------------------------|---------|
+| rider     | Is the controller running is `driver` or `passenger`                                                                     | String  |
+| front     | Front and back input.<br>Positive number = front (W), negative number = back (S)<br>These values are not exactly 1 or -1 | Float   |
+| side      | Left and right input.<br>Positive number = left (A), negative number = right (D)<br>These values are not exactly 1 or -1 | Float   |
+| jump      | Is the rider jumping (space bar). 1 = true, 0 = false                                                                    | Integer |
+| sneak     | Is the rider sneaking (shift). 1 = true, 0 = false                                                                       | Integer |
+| on_ground | Is the entity on ground. 1 = true, 0 = false                                                                             | Integer |
+| speed     | Value of the movement speed attribute of the entity                                                                      | Float   |
+| vx        | X component of the entity's velocity                                                                                     | Float   |
+| vy        | Y component of the entity's velocity                                                                                     | Float   |
+| vz        | Z component of the entity's velocity                                                                                     | Float   |
+
+Model Engine also provides a few accessor mechanics that allows users to interact with the movement controller of
+entities directly. You can check out the [Controller](MythicMobs/Model-Mechanics#controller) section of our mechanics page. 
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