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  2. nbodyphysics.com

    Gravity Engine 2¶ Version 5.1 (January 18, 2024) Gravity Engine 2 is a Unity asset that provides gravitation simulation and orbital mechanics. Gravity Engine 2 provides a complete toolkit for your space game physics. create and configure orbits with editor and in-scene views. support for manual maneuvers, Hohmann and Lambert transfers
  3. nbodyphysics.com

    GE2 vs GE: Key Differences¶ There are some important conceptual changes in Gravity Engine 2 as compared to the prior Gravity Engine Asset. The key differences: GE2 separates the code for gravitational evolution from code that handles game objects and their position updates and displays.
  4. nbodyphysics.com

    Gravity Engine 2¶ Version 4.0 (October 20, 2024) Gravity Engine 2 is a Unity asset that provides gravitation simulation and orbital mechanics. Gravity Engine 2 provides a complete toolkit for your space game physics. create and configure orbits with editor and in-scene views. support for manual maneuvers, Hohmann and Lambert transfers
  5. nbodyphysics.com

    Gravity Engine 2¶ Version 3.0 (September 20, 2024) Gravity Engine 2 is a Unity asset that provides gravitation simulation and orbital mechanics. Gravity Engine 2 provides a complete toolkit for your space game physics. create and configure orbits with editor and in-scene views. support for manual maneuvers, Hohmann and Lambert transfers
  6. nbodyphysics.com

    Gravity Engine 2¶ Version 1.0 (April 6, 2024) Gravity Engine 2 is a Unity asset that provides gravitation simulation and orbital mechanics. Gravity Engine 2 provides a complete toolkit for your space game physics. create and configure orbits with editor and in-scene views. support for manual maneuvers, Hohmann and Lambert transfers
  7. nbodyphysics.com

    The Core Code¶. The essential physics of Gravity Engine 2 is done by the GECore (GE) and GEPhysicsCore (GEPC) classes. This section provides an overview of their architecture and usage. In very general terms GECore manages the data and book-keeping and GEPhysicsCore does the physics evolution via numerical integration and/or propagators as well as applying maneuvers as appropriate.
  8. nbodyphysics.com

    GE2 vs GE: Key Differences¶ There are some important conceptual changes in Gravity Engine 2 as compared to the prior Gravity Engine Asset. The key differences: GE2 separates the code for gravitational evolution from code that handles game objects and their position updates and displays.
  9. nbodyphysics.com

    KEPLER mode (for transfer orbit) for \(t_1 < t < t_2\) KEPLER mode (outer circular orbit) for \(t > t_2\) Why do this, instead or say maneuvers? The patches allow GE to determine where the ship should be for any time \(t\). This means that user code can change the GE time forwards or backwards and GE can update the ship position.
  10. nbodyphysics.com

    Gravity Engine 2 (GE2) provides an engine for modelling gravitational interactions and orbital mechanics. This includes: N-body Newtonian gravitational interactions. orbit specification in a variety of input forms. ... (GE) class. This is a stand-alone (non-Unity component) to allow flexibility in its use. ...
  11. nbodyphysics.com

    The orbit in GE and "physics space" is in the XY plane. Hence the orbit axis is Z. In the scene view the XZ orbit toggle is selected (as it usually will be) and in the scene view the orbit axis is the Y axis. Since the code is making a change to physics state of the ship, it must use the physics axis in its computation.
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