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Polaris/code/datums/game_masters/default.dm
Atermonera cff34e64a1 Adds event regions to GameMaster events (#8334)
* Configures gm events to be selectable by "region"

* Configures event regions for existing events

* Configures event selection to filter by region
2022-01-15 23:52:00 -08:00

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// The default game master tries to choose events with these goals in mind.
// * Don't choose an event if the crew can't take it. E.g. no meteors after half of the crew died.
// * Try to involve lots of people, particuarly in active departments.
// * Avoid giving events to the same department multiple times in a row.
/datum/game_master/default
// If an event was done for a specific department, it is written here, so it doesn't do it again.
var/last_department_used = null
/datum/game_master/default/choose_event()
log_game_master("Now starting event decision.")
var/list/regions = metric.assess_player_regions()
if(!LAZYLEN(regions))
regions = list(EVENT_REGION_UNIVERSAL = 100)
var/list/most_active_departments = metric.assess_all_departments(3, list(last_department_used))
var/list/best_events = decide_best_events(most_active_departments, regions)
if(LAZYLEN(best_events))
log_game_master("Got [best_events.len] choice\s for the next event.")
var/list/weighted_events = list()
for(var/E in best_events)
var/datum/event2/meta/event = E
var/weight = event.get_weight()
if(weight <= 0)
continue
weighted_events[event] = weight
log_game_master("Filtered down to [weighted_events.len] choice\s.")
var/datum/event2/meta/choice = pickweight(weighted_events)
if(choice)
log_game_master("[choice.name] was chosen, and is now being ran.")
last_department_used = LAZYACCESS(choice.departments, 1)
return choice
/datum/game_master/default/proc/decide_best_events(list/most_active_departments, var/list/regions)
if(!LAZYLEN(most_active_departments)) // Server's empty?
log_game_master("Game Master failed to find any active departments.")
return list()
// Filter by generic factors
var/list/available_events = filter_events_generic()
// Filter by player regions. Lots of people in the mines = favor subterranean events
var/list/best_events = filter_events_by_region(available_events, pickweight(regions))
if(!LAZYLEN(best_events))
best_events = filter_events_by_region(available_events, EVENT_REGION_UNIVERSAL)
if(!LAZYLEN(best_events))
log_game_master("Game Master failed to find a suitable event, something very wrong is going on.")
return list()
available_events = best_events
// Filter events by department. Lots of engineering = break things on the station
if(most_active_departments.len >= 2)
var/list/top_two = list(most_active_departments[1], most_active_departments[2])
best_events = filter_events_by_departments(available_events, top_two)
if(LAZYLEN(best_events)) // We found something for those two, let's do it.
return best_events
// Otherwise we probably couldn't find something for the second highest group, so let's ignore them.
best_events = filter_events_by_departments(available_events, list(most_active_departments[1]))
if(LAZYLEN(best_events))
return best_events
// At this point we should expand our horizons.
best_events = filter_events_by_departments(available_events, list(DEPARTMENT_EVERYONE))
if(LAZYLEN(best_events))
return best_events
// Just give a random event if for some reason it still can't make up its mind.
best_events = filter_events_by_departments(available_events)
if(LAZYLEN(best_events))
return best_events
log_game_master("Game Master failed to find a suitable event, something very wrong is going on.")
return list()
// Filters events by availability, enable, and chaos
/datum/game_master/default/proc/filter_events_generic()
. = list()
for(var/E in SSgame_master.available_events)
var/datum/event2/meta/event = E
if(!event.enabled)
continue
if(event.chaotic_threshold && !ignore_round_chaos)
if(SSgame_master.danger > event.chaotic_threshold)
continue
. += event
// Filters the available events down to events for specific departments.
// Pass DEPARTMENT_EVERYONE if you want events that target the general population, like gravity failure.
// If no list is passed, all the events will be returned.
/datum/game_master/default/proc/filter_events_by_departments(list/available_events, list/departments)
. = list()
for(var/datum/event2/meta/event in available_events)
// An event has to involve all of these departments to pass.
if(!LAZYLEN(departments) || (departments ~= (event.departments & departments)))
. += event
// Filters the available events by the region those events target.
/datum/game_master/default/proc/filter_events_by_region(list/available_events, var/target_region)
. = list()
for(var/datum/event2/meta/event in available_events)
if(target_region in event.regions)
. += event