Hand Updating Across The Team

[Oliver-Akins]

Overview

Each team must keep the cards between each of the mediums synchronized, there are few different ways that this can be done listed below:

• Each client has a NewCard listener, RemoveCard listener, and a SendCard function. Then the client will send the card to the spirit by triggering the SendCard event, from which the server sends a RemoveCard to all of the other mediums, and then picks a new card from the deck and sends the NewCard to all the mediums, and simultaneously to all this, the spirit receives the NewCard event with the card from the medium. This has the downside of being and insanely complex sequence of event firings, so this is not ideal.
• Each client has a NewCards listener, RemoveCard listener, SendCard function, a watcher on the questions array, and the server has a GetCards listener, when the questions array changes on the client, calculate the number the cards needed in order to get to 7, then the trigger the GetCards event, meanwhile the other mediums get the RemoveCard event, telling them to remove the cards... which then triggers the watcher to request more cards, meaning the cards that each medium will get may be different, which is not synchronizing the hands to any degree.
• Each client has a UpdateHand listener, and a SendCard function. So the client triggers the SendCard to send the card to the spirit, from which the spirit receives a NewCard event with the new card information. Then the other clients receive an UpdateHand event with a newly drawn card and the sent card removed from the array. This keeps all the mediums in sync and prevents any race conditions related to drawing a new card for the hands.

Solution:

Client:

Event Listeners:

• UpdateHand
• NewCard

Event Emissions:

• SendCard

Server:

Event Listeners:

• SendCard

Event Emissions:

• UpdateHand
• NewCard

[Oliver-Akins]

The solution is being modified a bit to instead of having the NewCard event, we will just have all clients solely using the the UpdateHand event listening for updating all forms of the hand, what this means is that the spirit will also have the event listening and we will be storing the Spirit's hand in the team object as well as the medium's hand, this also helps prevent disconnections from losing any gamestate.