PhysicsStaticBody Class |
Represents a static physics body, which has no mass or inertia tensor and does not respond
dynamically to forces exerted upon it by other colliding bodies.
Inheritance HierarchyNamespace: Demo3D.Visuals
Assembly: Demo3D.Core (in Demo3D.Core.dll) Version: 18.03.00
SyntaxC#
public class PhysicsStaticBody : PhysicsBody
The PhysicsStaticBody type exposes the following members.
Properties| Name | Description | |
|---|---|---|
 | Aabb |
The axis-aligned bounding box in world space.
(Inherited from PhysicsBody.) |
| Enabled |
Whether the physics body is enabled in the physics world.
(Inherited from PhysicsBody.) |
| Geometry |
The physics collision geometry that belongs to the physics body.
(Inherited from PhysicsBody.) |
| Groups |
A copy of the list of collision groups that are prescribed to the physics body.
(Inherited from PhysicsBody.) |
| IsDisposed |
Whether the body has been disposed.
(Inherited from PhysicsBody.) |
| Position |
The world-space position for the physics body.
(Inherited from PhysicsBody.) |
| Rotation |
The world-space rotation matrix for the physics body.
(Inherited from PhysicsBody.) |
| Transform |
The world-space to local-space transformation matrix for the physics body.
(Inherited from PhysicsBody.) |
| Trigger |
Whether the static physics body is acting as a trigger.
|
Methods| Name | Description | |
|---|---|---|
 | AddGroup |
Prescribes the specified collision group to the physics body.
(Inherited from PhysicsBody.) |
| ContainsGroup |
Whether the physics body has been prescribed the specified collision group.
(Inherited from PhysicsBody.) |
| Dispose | (Inherited from PhysicsBody.) |
 | Dispose(Boolean) | (Inherited from PhysicsBody.) |
| RemoveGroup |
Unprescribes the specified collision group from the physics body.
(Inherited from PhysicsBody.) |
Fields| Name | Description | |
|---|---|---|
 | Visual |
The parent visual.
(Inherited from PhysicsBody.) |
Remarks
It is easy to confuse static bodies with kinematic rigid bodies. The main difference is that
kinematic bodies can have a linear and angular velocity and must be manually moved logically
as they are unaffected by other bodies colliding or otherwise interacting with with them.
Static bodies, on the other hand, are not supposed to move. Moving them by setting the
Transform property *may* work, but it is not guaranteed to work.
Whether it works or not is down to how they are implemented in the physics engine. There is
one exception to this in that moving a Trigger static body *is* guaranteed to
work as you would expect.
So, the general rule is that if you intend to move for the body to be influenced by other
bodies then you should use a regular PhysicsRigidBody. If you intend to move
the body yourself without using forces (e.g. by setting the
Transform, Velocity or
AngularVelocity properties), then you should use a
PhysicsRigidBody with the Kinematic property
set to true. If you intend for the body to be stationary during its lifetime, or you want a
trigger/sensor, then you should use a PhysicsStaticBody.
See Also