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name: BodyMover
type: class
memory_category: Instances
summary: |
  Base class for objects that continually exert forces to assemblies.
description: |
  `BodyMover` is the abstract base class for the set of legacy objects that
  exert forces to assemblies in different ways. In general, the subclasses of
  `BodyMover` are:

  - `Class.BodyForce` exerts a force relative to world coordinates.
  - `Class.BodyPosition` exerts force to maintain a certain world position.
  - `Class.BodyVelocity` exerts force to maintain a certain velocity.
  - `Class.BodyThrust` exerts a force relative to object coordinates which
    applies torque if positioned in a certain way.
  - `Class.BodyGyro` exerts torque to maintain a certain orientation.
  - `Class.BodyAngularVelocity` exerts torque to maintain a certain angular
    velocity.
  - `Class.RocketPropulsion` exerts both translational and rotational forces to
    cause an assembly to track down another.
code_samples: []
inherits:
  - Instance
descendants:
  - BodyAngularVelocity
  - BodyForce
  - BodyGyro
  - BodyPosition
  - BodyThrust
  - BodyVelocity
  - RocketPropulsion
tags:
  - NotCreatable
  - Deprecated
deprecation_message: |
  This class has been deprecated. See the
  [mover constraints](../../../physics/mover-constraints.md) article for an
  overview of `Class.BodyMover` replacements, as well as the
  [legacy conversion notes](../../../physics/mover-constraints.md#legacy-mover-conversion).
properties: []
methods: []
events: []
callbacks: []