GameExperience: Elimination GameStateComponent

[wail]

High Level
Define a new Elimination GameStateComponent

Technical Overview
The standard UnrealEngine GameFramework classes are not usually used in a modular or composable way. In order to make OpenTournament more extensible, we want to utilize the concept/framework of GameExperiences. A GameExperience is a concept that encapsulates everything about a Mode, from the rules of the mode, the HUD elements of the mode, even the characters+charactercomponents in the mode.

Utilizing GameExperiences we compose an 'Experience' from various single-purpose components. Assembling various components together can easily recreate classic modes as Experiences, but also gives us flexibility to rapidly construct new Experiences without additional engineering.

Technical Details & Acceptance Criteria
We define a Elimination GSC. This component can be utilized in game Experiences such as Deathmatch, CTF, Domination/DoubleDomination, BombingRun, or other types of experience/mode.

The Elimination GSC tracks elimination events (e.g. kills). When elimination events occur, the component sends a message to other listening components (e.g. Deathmatch Experience might turn this elimination event into a scoring event)

• Listens for Player Deaths and Determines if a Death is an Elimination Event
• Optionally broadcasts Assist Events
• GameStateComponent communicates State to other components & UI elements utilizing GameplayMessagingSubsystem