Solid

Solid is a behavior that that determines whether the actor can overlap with other actors during a collision.

Solid actors can behave differently depending on what kind of Motion they have.

• Solid actors with no motion (for example, walls) will never change position after a collision.
• Actors with fixed motion will avoid changing their velocity after a collision.
• Actors with dynamic motion may change both their position and their velocity after a collision. They are pushed away by other solid actors.

For more information, see Collision and Motion.

Solid and multiplayer

When building multiplayer decks, there's a special case you need to be aware of. Shared, Dynamic actors will not behave as Solid when colliding with other Shared, Dynamic actors. For more detail, see Shared blueprints#Collisions.