Overview

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Simulation Architecture

An Elodin simulation consists of:

• Systems: Systems are reusable functions that operate on a set of components. Composing different systems allows for the creation of custom physics engines. Some examples of systems include gravity, aerodynamics, collision detection.
• World: World is a container of all the entities in the simulation. See ECS Data Model for more context on entities.
• Flight Software (FSW): Flight software is a set of processes that run independent of the simulation. Using conduit, FSW subscribes to relevant simulation data and sends control commands back to the simulation.

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ECS Data Model

Elodin uses the Entity Component System (ECS) pattern to manage simulation data. Entities are simply unique references to a collection of components. Components are individual properties associated with an entity like position, velocity, mass, etc.

Archetypes are a unique combination of components that allow for efficient memory management and data access patterns. Entities are spawned with a list of archetypes rather than individual components.

Systems are simply functions that operate on component data.