# Messages Overview

General description of Messages

- **AddPlayerMessage**  
  This is passed to handler functions registered for the AddPlayer built-in message.
    
- **ErrorMessage**  
  This is passed to handler functions registered for the SYSTEM_ERROR built-in message.

- **NotReadyMessage**  
  This is passed to handler functions registered for the SYSTEM_NOT_READY built-in message.

- **PeerAuthorityMessage**  
  Information about a change in authority of a non-player in the same network game.  
  This information is cached by clients and used during host-migration.

- **ReadyMessage**  
  This is passed to handler functions registered for the SYSTEM_READY built-in message.

- **ReconnectMessage**  
  This network message is used when a client reconnect to the new host of a game.

- **RemovePlayerMessage**  
  This is passed to handler funtions registered for the SYSTEM_REMOVE_PLAYER built-in message.