Important Classes

VR-Link contains hundreds of classes, but the vast majority of projects can be completed by using several core classes.

Connections:
A connection in VR-Link is required to make your simulation "network aware." This is what bridges your Federate to the broader simulation. Simply creating a DtExerciseConn instance makes your program a federate.

• DtExerciseConn - The central connection to your exercise. no matter what protocol you use, you will need this class.
• DtExerciseConnInitializer - A command line processing class. This gives your application a high degree of configurability.

Objects:
No matter what protcol you use, if you want to publish something with state, you will need to create objects. Object classes are published to the network using a subclass of DtObjectPublisher, and read off the network using a subclass of DtReflectedObjectList. The state of the object is set/stored in state repositories, and publishers and reflected objects are used to push or pull this state data to the network.

Every object type has a State Repository, a Publisher, a Reflected Object, and a Reflected Object list. Significant objects are listed below with all of the above associated classes. Knowing these basic class names is most of what you need to make one or more federate that simulate something.

For publishing Entities

• DtEntityStateRepository - DtEntityPublisher - DtReflectedEntityList - DtReflectedEntity

For grouping entities real (or silent) together

• DtAggregateStateRepository - DtAggregatePublisher - DtReflectedAggregateList - DtReflectedAggregate

For Radio simulation

• DtRadioTransmitterRepository - DtRadioTransmitterPublisher - DtReflectedRadioTransmitterList - DtReflectedRadioTransmitter
• DtRadioReceiverRepository - DtRadioReceiverPublisher - DtReflectedRadioReceiverList - DtReflectedRadioReceiver

For Emissions

• DtEmitterSystemRepository - DtEmitterSystemPublisher - DtReflectedEmitterSystemList - DtReflectedEmitterSystem
• DtDesignatorRepository - DtDesignatorPublisher - DtReflectedDesignatorList - DtReflectedDesignator
• DtIffStateRepository - DtIffPublisher - DtReflectedIffList - DtReflectedIff

Interactions:
Interactions are used to represent events, such as a weapon fire, or a colission. Commonly used interactions include:

• DtFirePdu (DtFireInteraction)
• DtDetonationPdu (DtDetonationInteraction)
• DtCollisionPdu (DtCollisionInteraction)
• DtSignalPdu (DtSignalInteraction)

There are many more interactions supplied with VR-Link but they are seldome used. For a complete list of interactions see DtInteraction and view the object higherarchy.