Dynamic, static, and kinematic

You can now create static walls and floors, and dynamic objects such as bricks and cannon balls that are affected by forces. Next to static and dynamic objects, the physics simulation supports a third type of physical object, the kinematic object.

A kinematic object is not affected by forces or gravity (similar to a static object), but it can move around and push dynamic objects (similar to other dynamic objects). Typical use cases for kinematic objects in games are airplanes, airships, moving platforms, elevators, drawbridges, and conveyor belts.

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