New psionic ablility: Seer

[ewokswagger]

About the PR

Adds a new psionic power: Seer. Seers can tap into the nosphere to predict the future giving mysterious omens of things to come. When used you will get a message corresponding to the next station event within 5 minutes. There may be a chance that the result will be random to simulate unreliable readings.

Why / Balance

Psionics are part of DeltaV's unique identity but can sometimes feel stale and ancillary. Psionic powers could use some more variety and give supporting systems more uses, and this ability could open the door to more roleplay and gameplay possibilities. People could play as oracles predicting the future and warning of ill tides and give fun interactions with reporters and chaplains. Telepathic chat can be a hub of rumors both current and future. A local seer may be consulted to warn the station of harm.

Technical details

Having an ability be able to predict the next event requires the next event to be pregenerated so that the seer ability can access it. To hold this data a new component EventManagerComponent (Need help with a proper name) will be attached to EventManagerSystem and will contain two fields, NextEventId and nextEventTime. RunRandomEvent(EntityTableSelector limitedEventsTable) will be modified to instead of running the event it generates, to use the EventManagerComponent.NextEventId and to store the new random event in NextEventId. The seer ability will also need to know when the next event is going to happen so that if there is a considerable gap ~5 minutes it will report no upcoming events. A new overloaded class RunRandomEvent(EntityTableSelector limitedEventsTable, int nextEventTime) will be made and the relevant callers will be updated to use that. The EventManagerComponent.NextEventId will first be compared to the current round time to ensure that events that should have already run don't take priority. If The EventManagerComponent.NextEventTime is before the current time then the passed nextEventTime will be stored. If not then the sooner of passed nextEventTime and The EventManagerComponent.NextEventTime will be stored. Callers using the non overloaded version will simply not update the nextEventTime.

Media

Requirements

• I have read and am following the Pull Request and Changelog Guidelines.
• I have added media to this PR or it does not require an ingame showcase.

Breaking changes

Hopefully, if all the logic is handled on the EventManagerSystem itself, systems using it will behave as expected but it is something to look out for.

Changelog