This describes the behavior of a ‘Solid’ physics object! the physics engine will apply forces differently

Static Fields and Properties

SolidType Immovable Immovable objects are always stationary! They have infinite mass, zero velocity, and can’t collide with Immovable of Unaffected types.
SolidType Normal This object behaves like a normal physical object, it’ll fall, get pushed around, and generally be succeptible to physical forces! This is a ‘Dynamic’ body in physics simulation terms.
SolidType Unaffected Unaffected objects have infinite mass, but can have a velocity! They’ll move under their own forces, but nothing in the simulation will affect them. They don’t collide with Immovable or Unaffected types.