dynamic.dm

#define CURRENT_LIVING_PLAYERS	1
#define CURRENT_LIVING_ANTAGS	2
#define CURRENT_DEAD_PLAYERS	3
#define CURRENT_OBSERVERS	    4

#define ONLY_RULESET       1
#define HIGHLANDER_RULESET 2
#define TRAITOR_RULESET    4
#define MINOR_RULESET      8

#define RULESET_STOP_PROCESSING 1

// -- Injection delays
GLOBAL_VAR_INIT(dynamic_latejoin_delay_min, (5 MINUTES))
GLOBAL_VAR_INIT(dynamic_latejoin_delay_max, (25 MINUTES))

GLOBAL_VAR_INIT(dynamic_midround_delay_min, (15 MINUTES))
GLOBAL_VAR_INIT(dynamic_midround_delay_max, (60 MINUTES))

// Are HIGHLANDER_RULESETs allowed to stack?
GLOBAL_VAR_INIT(dynamic_no_stacking, FALSE)
// A number between -5 and +5.
// A negative value will give a more peaceful round and
// a positive value will give a round with higher threat.
GLOBAL_VAR_INIT(dynamic_curve_centre, 0)
// A number between 0.5 and 4.
// Higher value will favour extreme rounds and
// lower value rounds closer to the average.
GLOBAL_VAR_INIT(dynamic_curve_width, 1.8)
// If enabled only picks a single starting rule and executes only autotraitor midround ruleset.
GLOBAL_VAR_INIT(dynamic_classic_secret, FALSE)
// How many roundstart players required for high population override to take effect.
GLOBAL_VAR_INIT(dynamic_high_pop_limit, 55)
// If enabled does not accept or execute any rulesets.
GLOBAL_VAR_INIT(dynamic_forced_extended, FALSE)
// How high threat is required for HIGHLANDER_RULESETs stacking.
// This is independent of dynamic_no_stacking.
GLOBAL_VAR_INIT(dynamic_stacking_limit, 90)
// List of forced roundstart rulesets.
GLOBAL_LIST_EMPTY(dynamic_forced_roundstart_ruleset)
// Forced threat level, setting this to zero or higher forces the roundstart threat to the value.
GLOBAL_VAR_INIT(dynamic_forced_threat_level, -1)

/datum/game_mode/dynamic
	name = "dynamic mode"
	config_tag = "dynamic"
	report_type = "dynamic"
	title_icon = "ss13"

	announce_span = "danger"
	announce_text = "Dynamic mode!" // This needs to be changed maybe

	reroll_friendly = FALSE;

	// Threat logging vars
	/// The "threat cap", threat shouldn't normally go above this and is used in ruleset calculations
	var/threat_level = 0
	/// Set at the beginning of the round. Spent by the mode to "purchase" rules.
	var/threat = 0
	/// Running information about the threat. Can store text or datum entries.
	var/list/threat_log = list()
	/// List of roundstart rules used for selecting the rules.
	var/list/roundstart_rules = list()
	/// List of latejoin rules used for selecting the rules.
	var/list/latejoin_rules = list()
	/// List of midround rules used for selecting the rules.
	var/list/midround_rules = list()
	/** # Pop range per requirement.
	  * If the value is five the range is:
	  * 0-4, 5-9, 10-14, 15-19, 20-24, 25-29, 30-34, 35-39, 40-54, 45+
	  * If it is six the range is:
	  * 0-5, 6-11, 12-17, 18-23, 24-29, 30-35, 36-41, 42-47, 48-53, 54+
	  * If it is seven the range is:
	  * 0-6, 7-13, 14-20, 21-27, 28-34, 35-41, 42-48, 49-55, 56-62, 63+
	  */
	var/pop_per_requirement = 6
	/// The requirement used for checking if a second rule should be selected.
	var/list/second_rule_req = list(100, 100, 80, 70, 60, 50, 30, 20, 10, 0)
	/// The probability for a second ruleset with index being every ten threat.
	var/list/second_rule_prob = list(0,0,60,80,80,80,100,100,100,100)
	/// The requirement used for checking if a third rule should be selected. Index based on pop_per_requirement.
	var/list/third_rule_req = list(100, 100, 100, 90, 80, 70, 60, 50, 40, 30)
	/// The probability for a third ruleset with index being every ten threat.
	var/list/third_rule_prob = list(0,0,0,0,60,60,80,90,100,100)
	/// Threat requirement for a second ruleset when high pop override is in effect.
	var/high_pop_second_rule_req = 40
	/// Threat requirement for a third ruleset when high pop override is in effect.
	var/high_pop_third_rule_req = 60
	/// The amount of additional rulesets waiting to be picked.
	var/extra_rulesets_amount = 0
	/// Number of players who were ready on roundstart.
	var/roundstart_pop_ready = 0
	/// List of candidates used on roundstart rulesets.
	var/list/candidates = list()
	/// Rules that are processed, rule_process is called on the rules in this list.
	var/list/current_rules = list()
	/// List of executed rulesets.
	var/list/executed_rules = list()
	/// Associative list of current players, in order: living players, living antagonists, dead players and observers.
	var/list/list/current_players = list(CURRENT_LIVING_PLAYERS, CURRENT_LIVING_ANTAGS, CURRENT_DEAD_PLAYERS, CURRENT_OBSERVERS)
	/// When world.time is over this number the mode tries to inject a latejoin ruleset.
	var/latejoin_injection_cooldown = 0
	/// When world.time is over this number the mode tries to inject a midround ruleset.
	var/midround_injection_cooldown = 0
	/// When TRUE GetInjectionChance returns 100.
	var/forced_injection = FALSE
	/// Forced ruleset to be executed for the next latejoin.
	var/datum/dynamic_ruleset/latejoin/forced_latejoin_rule = null
	/// When current_players was updated last time.
	var/pop_last_updated = 0
	/// How many percent of the rounds are more peaceful.
	var/peaceful_percentage = 50
	/// If a highlander executed.
	var/highlander_executed = FALSE
	/// If a only ruleset has been executed.
	var/only_ruleset_executed = FALSE
	/// Dynamic configuration, loaded on pre_setup
	var/list/configuration = null
	/// Antags rolled by rules so far, to keep track of and discourage scaling past a certain ratio of crew/antags especially on lowpop.
	var/antags_rolled = 0
	/// CRATE DISCOUNT
	var/discountedcrates = list(	/datum/supply_pack/security/laser,
									/datum/supply_pack/security/helmets,
									/datum/supply_pack/security/vending/security,
									/datum/supply_pack/service/party)

/datum/game_mode/dynamic/admin_panel()
	var/list/dat = list("<html><head><title>Game Mode Panel</title></head><body><h1><B>Game Mode Panel</B></h1>")
	dat += "Dynamic Mode <a href='?_src_=vars;[HrefToken()];Vars=[REF(src)]'>\[VV\]</A><a href='?src=\ref[src];[HrefToken()]'>\[Refresh\]</A><BR>"
	dat += "Threat Level: <b>[threat_level]</b><br/>"

	dat += "Threat to Spend: <b>[threat]</b> <a href='?src=\ref[src];[HrefToken()];adjustthreat=1'>\[Adjust\]</A> <a href='?src=\ref[src];[HrefToken()];threatlog=1'>\[View Log\]</a><br/>"
	dat += "<br/>"
	dat += "Parameters: centre = [GLOB.dynamic_curve_centre] ; width = [GLOB.dynamic_curve_width].<br/>"
	dat += "<i>On average, <b>[peaceful_percentage]</b>% of the rounds are more peaceful.</i><br/>"
	dat += "Forced extended: <a href='?src=\ref[src];[HrefToken()];forced_extended=1'><b>[GLOB.dynamic_forced_extended ? "On" : "Off"]</b></a><br/>"
	dat += "Classic secret (only autotraitor): <a href='?src=\ref[src];[HrefToken()];classic_secret=1'><b>[GLOB.dynamic_classic_secret ? "On" : "Off"]</b></a><br/>"
	dat += "No stacking (only one round-ender): <a href='?src=\ref[src];[HrefToken()];no_stacking=1'><b>[GLOB.dynamic_no_stacking ? "On" : "Off"]</b></a><br/>"
	dat += "Stacking limit: [GLOB.dynamic_stacking_limit] <a href='?src=\ref[src];[HrefToken()];stacking_limit=1'>\[Adjust\]</A>"
	dat += "<br/>"
	dat += "Executed rulesets: "
	if (executed_rules.len > 0)
		dat += "<br/>"
		for (var/datum/dynamic_ruleset/DR in executed_rules)
			dat += "[DR.ruletype] - <b>[DR.name]</b><br>"
	else
		dat += "none.<br>"
	dat += "<br>Injection Timers: (<b>[get_injection_chance(TRUE)]%</b> chance)<BR>"
	dat += "Latejoin: [(latejoin_injection_cooldown-world.time)>60*10 ? "[round((latejoin_injection_cooldown-world.time)/60/10,0.1)] minutes" : "[(latejoin_injection_cooldown-world.time)] seconds"] <a href='?src=\ref[src];[HrefToken()];injectlate=1'>\[Now!\]</a><BR>"
	dat += "Midround: [(midround_injection_cooldown-world.time)>60*10 ? "[round((midround_injection_cooldown-world.time)/60/10,0.1)] minutes" : "[(midround_injection_cooldown-world.time)] seconds"] <a href='?src=\ref[src];[HrefToken()];injectmid=1'>\[Now!\]</a><BR>"
	usr << browse(dat.Join(), "window=gamemode_panel;size=500x500")

/datum/game_mode/dynamic/Topic(href, href_list)
	if (..()) // Sanity, maybe ?
		return
	if(!check_rights(R_ADMIN))
		message_admins("[usr.key] has attempted to override the game mode panel!")
		log_admin("[key_name(usr)] tried to use the game mode panel without authorization.")
		return
	if (href_list["forced_extended"])
		log_admin("[key_name(usr)] has toggled forced extended.")
		GLOB.dynamic_forced_extended = !GLOB.dynamic_forced_extended
	else if (href_list["no_stacking"])
		log_admin("[key_name(usr)] has toggled stacking.")
		GLOB.dynamic_no_stacking = !GLOB.dynamic_no_stacking
	else if (href_list["classic_secret"])
		log_admin("[key_name(usr)] has toggled classic secret.")
		GLOB.dynamic_classic_secret = !GLOB.dynamic_classic_secret
	else if (href_list["adjustthreat"])
		var/threatadd = input("Specify how much threat to add (negative to subtract). This can inflate the threat level.", "Adjust Threat", 0) as null|num
		if(!threatadd)
			return
		log_admin("[key_name(usr)] has changed the threat by [threatadd].")
		if(threatadd > 0)
			create_threat(threatadd)
			threat_log += "[worldtime2text()]: [key_name(usr)] increased threat by [threatadd] threat."
		else
			spend_threat(-threatadd)
			threat_log += "[worldtime2text()]: [key_name(usr)] decreased threat by [-threatadd] threat."
	else if (href_list["injectlate"])
		latejoin_injection_cooldown = 0
		forced_injection = TRUE
		message_admins("[key_name(usr)] forced a latejoin injection.", 1)
	else if (href_list["injectmid"])
		midround_injection_cooldown = 0
		forced_injection = TRUE
		message_admins("[key_name(usr)] forced a midround injection.", 1)
	else if (href_list["threatlog"])
		show_threatlog(usr)
	else if (href_list["stacking_limit"])
		GLOB.dynamic_stacking_limit = input(usr,"Change the threat limit at which round-endings rulesets will start to stack.", "Change stacking limit", null) as num

	admin_panel() // Refreshes the window

// Checks if there are HIGHLANDER_RULESETs and calls the rule's round_result() proc
/datum/game_mode/dynamic/set_round_result()
	for(var/datum/dynamic_ruleset/rule in executed_rules)
		if(rule.flags & HIGHLANDER_RULESET)
			if(rule.check_finished()) // Only the rule that actually finished the round sets round result.
				return rule.round_result()
	// If it got to this part, just pick one highlander if it exists
	for(var/datum/dynamic_ruleset/rule in executed_rules)
		if(rule.flags & HIGHLANDER_RULESET)
			return rule.round_result()
	return ..()

/datum/game_mode/dynamic/send_intercept()
	. = "<b><i>Central Command Status Summary</i></b><hr>"
	switch(round(threat_level))
		if(0 to 19)
			update_playercounts()
			if(!current_players[CURRENT_LIVING_ANTAGS].len)
				. += "<b>Peaceful Waypoint</b></center><BR>"
				. += "Your station orbits deep within controlled, core-sector systems and serves as a waypoint for routine traffic through Nanotrasen's trade empire. Due to the combination of high security, interstellar traffic, and low strategic value, it makes any direct threat of violence unlikely. Your primary enemies will be incompetence and bored crewmen: try to organize team-building events to keep staffers interested and productive."
			else
				. += "<b>Core Territory</b></center><BR>"
				. += "Your station orbits within reliably mundane, secure space. Although Nanotrasen has a firm grip on security in your region, the valuable resources and strategic position aboard your station make it a potential target for infiltrations. Monitor crew for non-loyal behavior, but expect a relatively tame shift free of large-scale destruction. We expect great things from your station."
		if(20 to 39)
			. += "<b>Anomalous Exogeology</b></center><BR>"
			. += "Although your station lies within what is generally considered Nanotrasen-controlled space, the course of its orbit has caused it to cross unusually close to exogeological features with anomalous readings. Although these features offer opportunities for our research department, it is known that these little understood readings are often correlated with increased activity from competing interstellar organizations and individuals, among them the Wizard Federation and Cult of the Geometer of Blood - all known competitors for Anomaly Type B sites. Exercise elevated caution."
		if(40 to 65)
			. += "<b>Contested System</b></center><BR>"
			. += "Your station's orbit passes along the edge of Nanotrasen's sphere of influence. While subversive elements remain the most likely threat against your station, hostile organizations are bolder here, where our grip is weaker. Exercise increased caution against elite Syndicate strike forces, or Executives forbid, some kind of ill-conceived unionizing attempt."
		if(66 to 79)
			. += "<b>Uncharted Space</b></center><BR>"
			. += "Congratulations and thank you for participating in the NT 'Frontier' space program! Your station is actively orbiting a high value system far from the nearest support stations. Little is known about your region of space, and the opportunity to encounter the unknown invites greater glory. You are encouraged to elevate security as necessary to protect Nanotrasen assets."
		if(80 to 99)
			. += "<b>Black Orbit</b></center><BR>"
			. += "As part of a mandatory security protocol, we are required to inform you that as a result of your orbital pattern directly behind an astrological body (oriented from our nearest observatory), your station will be under decreased monitoring and support. It is anticipated that your extreme location and decreased surveillance could pose security risks. Avoid unnecessary risks and attempt to keep your station in one piece."
		if(100)
			. += "<b>Impending Doom</b></center><BR>"
			. += "Your station is somehow in the middle of hostile territory, in clear view of any enemy of the corporation. Your likelihood to survive is low, and station destruction is expected and almost inevitable. Secure any sensitive material and neutralize any enemy you will come across. It is important that you at least try to maintain the station.<BR>"
			. += "Good luck."

	if(station_goals.len)
		. += "<hr><b>Special Orders for [station_name()]:</b>"
		for(var/datum/station_goal/G in station_goals)
			G.on_report()
			. += G.get_report()

	print_command_report(., "Central Command Status Summary", announce=FALSE)
	priority_announce("A summary has been copied and printed to all communications consoles.", "Security level elevated.", 'sound/ai/intercept.ogg')
	if(GLOB.security_level < SEC_LEVEL_BLUE)
		set_security_level(SEC_LEVEL_BLUE)

	if(ISINRANGE(threat_level, 50, 80))
		for(var/pack in SSshuttle.supply_packs)
			var/datum/supply_pack/P = SSshuttle.supply_packs[pack]
			for(P in discountedcrates)
				P.cost = P.cost /= 2

// Yes, this is copy pasted from game_mode
/datum/game_mode/dynamic/check_finished(force_ending)
	if(!SSticker.setup_done || !gamemode_ready)
		return FALSE
	if(replacementmode && round_converted == 2)
		return replacementmode.check_finished()
	if(SSshuttle.emergency && (SSshuttle.emergency.mode == SHUTTLE_ENDGAME))
		return TRUE
	if(station_was_nuked)
		return TRUE
	if(force_ending)
		return TRUE
	for(var/datum/dynamic_ruleset/rule in executed_rules)
		if(rule.flags & HIGHLANDER_RULESET)
			return rule.check_finished()

/datum/game_mode/dynamic/proc/show_threatlog(mob/admin)
	if(!SSticker.HasRoundStarted())
		alert("The round hasn't started yet!")
		return

	if(!check_rights(R_ADMIN))
		return

	var/list/out = list("<TITLE>Threat Log</TITLE><B><font size='3'>Threat Log</font></B><br><B>Starting Threat:</B> [threat_level]<BR>")

	for(var/entry in threat_log)
		if(istext(entry))
			out += "[entry]<BR>"

	out += "<B>Remaining threat/threat_level:</B> [threat]/[threat_level]"

	usr << browse(out.Join(), "window=threatlog;size=700x500")

/// Generates the threat level using lorentz distribution and assigns peaceful_percentage.
/datum/game_mode/dynamic/proc/generate_threat()
	var/relative_threat = LORENTZ_DISTRIBUTION(GLOB.dynamic_curve_centre, GLOB.dynamic_curve_width)
	threat_level = round(lorentz_to_threat(relative_threat), 0.1)

	peaceful_percentage = round(LORENTZ_CUMULATIVE_DISTRIBUTION(relative_threat, GLOB.dynamic_curve_centre, GLOB.dynamic_curve_width), 0.01)*100

	threat = threat_level

/datum/game_mode/dynamic/can_start()
	message_admins("Dynamic mode parameters for the round:")
	message_admins("Centre is [GLOB.dynamic_curve_centre], Width is [GLOB.dynamic_curve_width], Forced extended is [GLOB.dynamic_forced_extended ? "Enabled" : "Disabled"], No stacking is [GLOB.dynamic_no_stacking ? "Enabled" : "Disabled"].")
	message_admins("Stacking limit is [GLOB.dynamic_stacking_limit], Classic secret is [GLOB.dynamic_classic_secret ? "Enabled" : "Disabled"], High population limit is [GLOB.dynamic_high_pop_limit].")
	log_game("DYNAMIC: Dynamic mode parameters for the round:")
	log_game("DYNAMIC: Centre is [GLOB.dynamic_curve_centre], Width is [GLOB.dynamic_curve_width], Forced extended is [GLOB.dynamic_forced_extended ? "Enabled" : "Disabled"], No stacking is [GLOB.dynamic_no_stacking ? "Enabled" : "Disabled"].")
	log_game("DYNAMIC: Stacking limit is [GLOB.dynamic_stacking_limit], Classic secret is [GLOB.dynamic_classic_secret ? "Enabled" : "Disabled"], High population limit is [GLOB.dynamic_high_pop_limit].")
	if(GLOB.dynamic_forced_threat_level >= 0)
		threat_level = round(GLOB.dynamic_forced_threat_level, 0.1)
		threat = threat_level
	else
		generate_threat()

	var/latejoin_injection_cooldown_middle = 0.5*(GLOB.dynamic_latejoin_delay_max + GLOB.dynamic_latejoin_delay_min)
	latejoin_injection_cooldown = round(clamp(EXP_DISTRIBUTION(latejoin_injection_cooldown_middle), GLOB.dynamic_latejoin_delay_min, GLOB.dynamic_latejoin_delay_max)) + world.time

	var/midround_injection_cooldown_middle = 0.5*(GLOB.dynamic_midround_delay_max + GLOB.dynamic_midround_delay_min)
	midround_injection_cooldown = round(clamp(EXP_DISTRIBUTION(midround_injection_cooldown_middle), GLOB.dynamic_midround_delay_min, GLOB.dynamic_midround_delay_max)) + world.time
	message_admins("Dynamic Mode initialized with a Threat Level of... [threat_level]!")
	log_game("DYNAMIC: Dynamic Mode initialized with a Threat Level of... [threat_level]!")
	return TRUE

/datum/game_mode/dynamic/pre_setup()
	if(CONFIG_GET(flag/dynamic_config_enabled))
		var/json_file = file("config/dynamic.json")
		if(fexists(json_file))
			configuration = json_decode(file2text(json_file))
			if(configuration["Dynamic"])
				for(var/variable in configuration["Dynamic"])
					if(!vars[variable])
						stack_trace("Invalid dynamic configuration variable [variable] in game mode variable changes.")
						continue
					vars[variable] = configuration["dynamic"][variable]

	for (var/rule in subtypesof(/datum/dynamic_ruleset))
		var/datum/dynamic_ruleset/ruleset = new rule()
		// Simple check if the ruleset should be added to the lists.
		if(ruleset.name == "")
			continue
		switch(ruleset.ruletype)
			if("Roundstart")
				roundstart_rules += ruleset
			if ("Latejoin")
				latejoin_rules += ruleset
			if ("Midround")
				if (ruleset.weight)
					midround_rules += ruleset
		configure_ruleset(ruleset)


	for(var/mob/dead/new_player/player in GLOB.player_list)
		if(player.ready == PLAYER_READY_TO_PLAY && player.mind)
			roundstart_pop_ready++
			candidates.Add(player)
	log_game("DYNAMIC: Listing [roundstart_rules.len] round start rulesets, and [candidates.len] players ready.")
	if (candidates.len <= 0)
		log_game("DYNAMIC: [candidates.len] candidates.")
		return TRUE
	if (roundstart_rules.len <= 0)
		log_game("DYNAMIC: [roundstart_rules.len] rules.")
		return TRUE

	if(GLOB.dynamic_forced_roundstart_ruleset.len > 0)
		rigged_roundstart()
	else
		roundstart()

	var/starting_rulesets = ""
	for (var/datum/dynamic_ruleset/roundstart/DR in executed_rules)
		starting_rulesets += "[DR.name], "
	log_game("DYNAMIC: Picked the following roundstart rules: [starting_rulesets]")
	candidates.Cut()
	return TRUE

/datum/game_mode/dynamic/post_setup(report)
	update_playercounts()

	for(var/datum/dynamic_ruleset/roundstart/rule in executed_rules)
		rule.candidates.Cut() // The rule should not use candidates at this point as they all are null.
		addtimer(CALLBACK(src, /datum/game_mode/dynamic/.proc/execute_roundstart_rule, rule), rule.delay)
	..()

/// A simple roundstart proc used when dynamic_forced_roundstart_ruleset has rules in it.
/datum/game_mode/dynamic/proc/rigged_roundstart()
	message_admins("[GLOB.dynamic_forced_roundstart_ruleset.len] rulesets being forced. Will now attempt to draft players for them.")
	log_game("DYNAMIC: [GLOB.dynamic_forced_roundstart_ruleset.len] rulesets being forced. Will now attempt to draft players for them.")
	for (var/datum/dynamic_ruleset/roundstart/rule in GLOB.dynamic_forced_roundstart_ruleset)
		message_admins("Drafting players for forced ruleset [rule.name].")
		log_game("DYNAMIC: Drafting players for forced ruleset [rule.name].")
		rule.mode = src
		rule.acceptable(roundstart_pop_ready, threat_level)	// Assigns some vars in the modes, running it here for consistency
		rule.candidates = candidates.Copy()
		rule.trim_candidates()
		rule.pop_per_requirement = rule.pop_per_requirement > 0 ? rule.pop_per_requirement : (src.pop_per_requirement > 0 ? src.pop_per_requirement : 6) //i hate myself for this
		if (rule.ready(TRUE))
			picking_roundstart_rule(list(rule), forced = TRUE)

/datum/game_mode/dynamic/proc/roundstart()
	if (GLOB.dynamic_forced_extended)
		log_game("DYNAMIC: Starting a round of forced extended.")
		return TRUE
	var/list/drafted_rules = list()
	for (var/datum/dynamic_ruleset/roundstart/rule in roundstart_rules)
		if (rule.acceptable(roundstart_pop_ready, threat_level) && threat >= rule.cost)	// If we got the population and threat required
			rule.candidates = candidates.Copy()
			rule.trim_candidates()
			if (rule.ready() && rule.candidates.len > 0)
				drafted_rules[rule] = rule.weight

	var/indice_pop = min(10,round(roundstart_pop_ready/pop_per_requirement)+1)
	extra_rulesets_amount = 0
	if (GLOB.dynamic_classic_secret)
		extra_rulesets_amount = 0
	else
		if (roundstart_pop_ready > GLOB.dynamic_high_pop_limit)
			message_admins("High Population Override is in effect! Threat Level will have more impact on which roles will appear, and player population less.")
			log_game("DYNAMIC: High Population Override is in effect! Threat Level will have more impact on which roles will appear, and player population less.")
			if (threat_level > high_pop_second_rule_req)
				extra_rulesets_amount++
				if (threat_level > high_pop_third_rule_req)
					extra_rulesets_amount++
		else
			var/threat_indice = min(10, max(round(threat_level ? threat_level/10 : 1), 1))	// 0-9 threat = 1, 10-19 threat = 2 ...
			if (threat_level >= second_rule_req[indice_pop] && prob(second_rule_prob[threat_indice]))
				extra_rulesets_amount++
				if (threat_level >= third_rule_req[indice_pop] && prob(third_rule_prob[threat_indice]))
					extra_rulesets_amount++
	log_game("DYNAMIC: Trying to roll [extra_rulesets_amount + 1] roundstart rulesets. Picking from [drafted_rules.len] eligible rulesets.")

	if (drafted_rules.len > 0 && picking_roundstart_rule(drafted_rules))
		log_game("DYNAMIC: First ruleset picked successfully. [extra_rulesets_amount] remaining.")
		while(extra_rulesets_amount > 0 && drafted_rules.len > 0)	// We had enough threat for one or two more rulesets
			for (var/datum/dynamic_ruleset/roundstart/rule in drafted_rules)
				if (rule.cost > threat)
					drafted_rules -= rule
			if(drafted_rules.len)
				picking_roundstart_rule(drafted_rules)
				extra_rulesets_amount--
				log_game("DYNAMIC: Additional ruleset picked successfully, now [executed_rules.len] picked. [extra_rulesets_amount] remaining.")
	else
		if(threat >= 10)
			message_admins("DYNAMIC: Picking first roundstart ruleset failed. You might want to report this.")
		log_game("DYNAMIC: Picking first roundstart ruleset failed. drafted_rules.len = [drafted_rules.len] and threat = [threat]/[threat_level]")
		return FALSE
	return TRUE

/// Picks a random roundstart rule from the list given as an argument and executes it.
/datum/game_mode/dynamic/proc/picking_roundstart_rule(list/drafted_rules = list(), forced = FALSE)
	var/datum/dynamic_ruleset/roundstart/starting_rule = pickweight(drafted_rules)
	if(!starting_rule)
		log_game("DYNAMIC: Couldn't pick a starting ruleset. No rulesets available")
		return FALSE

	if(!forced)
		if(only_ruleset_executed)
			log_game("DYNAMIC: Picking [starting_rule.name] failed due to only_ruleset_executed.")
			return FALSE
		// Check if a blocking ruleset has been executed.
		else if(check_blocking(starting_rule.blocking_rules, executed_rules))	// Should already be filtered out, but making sure. Check filtering at end of proc if reported.
			drafted_rules -= starting_rule
			if(drafted_rules.len <= 0)
				return FALSE
			starting_rule = pickweight(drafted_rules)
		// Check if the ruleset is highlander and if a highlander ruleset has been executed
		else if(starting_rule.flags & HIGHLANDER_RULESET)		// Should already be filtered out, but making sure. Check filtering at end of proc if reported.
			if(threat_level > GLOB.dynamic_stacking_limit && GLOB.dynamic_no_stacking)
				if(highlander_executed)
					drafted_rules -= starting_rule
					if(drafted_rules.len <= 0)
						log_game("DYNAMIC: Picking [starting_rule.name] failed due to no highlander stacking and no more rulesets available. Report this.")
						return FALSE
					starting_rule = pickweight(drafted_rules)
		// With low pop and high threat there might be rulesets that get executed with no valid candidates.
		else if(!starting_rule.ready())	// Should already be filtered out, but making sure. Check filtering at end of proc if reported.
			drafted_rules -= starting_rule
			if(drafted_rules.len <= 0)
				log_game("DYNAMIC: Picking [starting_rule.name] failed because there were not enough candidates and no more rulesets available. Report this.")
				return FALSE
			starting_rule = pickweight(drafted_rules)

	message_admins("Picking a ruleset [starting_rule.name]")
	log_game("DYNAMIC: Picked a ruleset: [starting_rule.name]")

	roundstart_rules -= starting_rule
	drafted_rules -= starting_rule

	starting_rule.trim_candidates()

	var/added_threat = starting_rule.scale_up(extra_rulesets_amount, threat)
	if(starting_rule.pre_execute())
		spend_threat(starting_rule.cost + added_threat)
		threat_log += "[worldtime2text()]: Roundstart [starting_rule.name] spent [starting_rule.cost + added_threat]. [starting_rule.scaling_cost ? "Scaled up[starting_rule.scaled_times]/3 times." : ""]"
		if(starting_rule.flags & HIGHLANDER_RULESET)
			highlander_executed = TRUE
		else if(starting_rule.flags & ONLY_RULESET)
			only_ruleset_executed = TRUE
		executed_rules += starting_rule
		for(var/datum/dynamic_ruleset/roundstart/rule in drafted_rules)
			if(check_blocking(rule.blocking_rules, executed_rules))
				drafted_rules -= rule
			if(highlander_executed && rule.flags & HIGHLANDER_RULESET)
				drafted_rules -= rule
			if(!rule.ready())
				drafted_rules -= rule // And removing rules that are no longer eligible

		return TRUE
	else
		stack_trace("The starting rule \"[starting_rule.name]\" failed to pre_execute.")
	return FALSE

/// Mainly here to facilitate delayed rulesets. All roundstart rulesets are executed with a timered callback to this proc.
/datum/game_mode/dynamic/proc/execute_roundstart_rule(sent_rule)
	var/datum/dynamic_ruleset/rule = sent_rule
	if(rule.execute())
		if(rule.persistent)
			current_rules += rule
		return TRUE
	rule.clean_up()	// Refund threat, delete teams and so on.
	executed_rules -= rule
	stack_trace("The starting rule \"[rule.name]\" failed to execute.")
	return FALSE

/// Picks a random midround OR latejoin rule from the list given as an argument and executes it.
/// Also this could be named better.
/datum/game_mode/dynamic/proc/picking_midround_latejoin_rule(list/drafted_rules = list(), forced = FALSE)
	var/datum/dynamic_ruleset/rule = pickweight(drafted_rules)
	if(!rule)
		return FALSE

	if(!forced)
		if(only_ruleset_executed)
			return FALSE
		// Check if a blocking ruleset has been executed.
		else if(check_blocking(rule.blocking_rules, executed_rules))
			drafted_rules -= rule
			if(drafted_rules.len <= 0)
				return FALSE
			rule = pickweight(drafted_rules)
		// Check if the ruleset is highlander and if a highlander ruleset has been executed
		else if(rule.flags & HIGHLANDER_RULESET)
			if(threat_level > GLOB.dynamic_stacking_limit && GLOB.dynamic_no_stacking)
				if(highlander_executed)
					drafted_rules -= rule
					if(drafted_rules.len <= 0)
						return FALSE
					rule = pickweight(drafted_rules)

	if(!rule.repeatable)
		if(rule.ruletype == "Latejoin")
			latejoin_rules = remove_from_list(latejoin_rules, rule.type)
		else if(rule.ruletype == "Midround")
			midround_rules = remove_from_list(midround_rules, rule.type)

	addtimer(CALLBACK(src, /datum/game_mode/dynamic/.proc/execute_midround_latejoin_rule, rule), rule.delay)
	return TRUE

/// An experimental proc to allow admins to call rules on the fly or have rules call other rules.
/datum/game_mode/dynamic/proc/picking_specific_rule(ruletype, forced = FALSE)
	var/datum/dynamic_ruleset/midround/new_rule
	if(ispath(ruletype))
		new_rule = new ruletype() // You should only use it to call midround rules though.
		configure_ruleset(new_rule)
	else if(istype(ruletype, /datum/dynamic_ruleset))
		new_rule = ruletype
	else
		return FALSE

	if(!new_rule)
		return FALSE

	if(!forced)
		if(only_ruleset_executed)
			return FALSE
		// Check if a blocking ruleset has been executed.
		else if(check_blocking(new_rule.blocking_rules, executed_rules))
			return FALSE
		// Check if the ruleset is highlander and if a highlander ruleset has been executed
		else if(new_rule.flags & HIGHLANDER_RULESET)
			if(threat_level > GLOB.dynamic_stacking_limit && GLOB.dynamic_no_stacking)
				if(highlander_executed)
					return FALSE

	update_playercounts()
	if ((forced || (new_rule.acceptable(current_players[CURRENT_LIVING_PLAYERS].len, threat_level) && new_rule.cost <= threat)))
		new_rule.trim_candidates()
		if (new_rule.ready(forced))
			spend_threat(new_rule.cost)
			threat_log += "[worldtime2text()]: Forced rule [new_rule.name] spent [new_rule.cost]"
			if (new_rule.execute()) // This should never fail since ready() returned 1
				if(new_rule.flags & HIGHLANDER_RULESET)
					highlander_executed = TRUE
				else if(new_rule.flags & ONLY_RULESET)
					only_ruleset_executed = TRUE
				log_game("DYNAMIC: Making a call to a specific ruleset...[new_rule.name]!")
				executed_rules += new_rule
				if (new_rule.persistent)
					current_rules += new_rule
				return TRUE
		else if (forced)
			log_game("DYNAMIC: The ruleset [new_rule.name] couldn't be executed due to lack of elligible players.")
	return FALSE

/// Mainly here to facilitate delayed rulesets. All midround/latejoin rulesets are executed with a timered callback to this proc.
/datum/game_mode/dynamic/proc/execute_midround_latejoin_rule(sent_rule)
	var/datum/dynamic_ruleset/rule = sent_rule
	spend_threat(rule.cost)
	threat_log += "[worldtime2text()]: [rule.ruletype] [rule.name] spent [rule.cost]"
	if (rule.execute())
		log_game("DYNAMIC: Injected a [rule.ruletype == "latejoin" ? "latejoin" : "midround"] ruleset [rule.name].")
		if(rule.flags & HIGHLANDER_RULESET)
			highlander_executed = TRUE
		else if(rule.flags & ONLY_RULESET)
			only_ruleset_executed = TRUE
		if(rule.ruletype == "Latejoin")
			var/mob/M = pick(rule.candidates)
			message_admins("[key_name(M)] joined the station, and was selected by the [rule.name] ruleset.")
			log_game("DYNAMIC: [key_name(M)] joined the station, and was selected by the [rule.name] ruleset.")
		executed_rules += rule
		rule.candidates.Cut()
		if (rule.persistent)
			current_rules += rule
		return TRUE
	rule.clean_up()
	stack_trace("The [rule.ruletype] rule \"[rule.name]\" failed to execute.")
	return FALSE

/datum/game_mode/dynamic/process()
	if (pop_last_updated < world.time - (60 SECONDS))
		pop_last_updated = world.time
		update_playercounts()

	for (var/datum/dynamic_ruleset/rule in current_rules)
		if(rule.rule_process() == RULESET_STOP_PROCESSING) // If rule_process() returns 1 (RULESET_STOP_PROCESSING), stop processing.
			current_rules -= rule

	if (midround_injection_cooldown < world.time)
		if (GLOB.dynamic_forced_extended)
			return

		// Somehow it managed to trigger midround multiple times so this was moved here.
		// There is no way this should be able to trigger an injection twice now.
		var/midround_injection_cooldown_middle = 0.5*(GLOB.dynamic_midround_delay_max + GLOB.dynamic_midround_delay_min)
		midround_injection_cooldown = (round(clamp(EXP_DISTRIBUTION(midround_injection_cooldown_middle), GLOB.dynamic_midround_delay_min, GLOB.dynamic_midround_delay_max)) + world.time)

		// Time to inject some threat into the round
		if(EMERGENCY_ESCAPED_OR_ENDGAMED) // Unless the shuttle is gone
			return

		message_admins("DYNAMIC: Checking for midround injection.")
		log_game("DYNAMIC: Checking for midround injection.")

		update_playercounts()
		if (get_injection_chance())
			var/list/drafted_rules = list()
			for (var/datum/dynamic_ruleset/midround/rule in midround_rules)
				if (rule.acceptable(current_players[CURRENT_LIVING_PLAYERS].len, threat_level) && threat >= rule.cost)
					// Classic secret : only autotraitor/minor roles
					if (GLOB.dynamic_classic_secret && !((rule.flags & TRAITOR_RULESET) || (rule.flags & MINOR_RULESET)))
						continue
					rule.trim_candidates()
					if (rule.ready())
						drafted_rules[rule] = rule.get_weight()
			if (drafted_rules.len > 0)
				picking_midround_latejoin_rule(drafted_rules)

/// Updates current_players.
/datum/game_mode/dynamic/proc/update_playercounts()
	current_players[CURRENT_LIVING_PLAYERS] = list()
	current_players[CURRENT_LIVING_ANTAGS] = list()
	current_players[CURRENT_DEAD_PLAYERS] = list()
	current_players[CURRENT_OBSERVERS] = list()
	for (var/mob/M in GLOB.player_list)
		if (istype(M, /mob/dead/new_player))
			continue
		if (M.stat != DEAD)
			current_players[CURRENT_LIVING_PLAYERS].Add(M)
			if (M.mind && (M.mind.special_role || M.mind.antag_datums?.len > 0))
				current_players[CURRENT_LIVING_ANTAGS].Add(M)
		else
			if (istype(M,/mob/dead/observer))
				var/mob/dead/observer/O = M
				if (O.started_as_observer) // Observers
					current_players[CURRENT_OBSERVERS].Add(M)
					continue
			current_players[CURRENT_DEAD_PLAYERS].Add(M) // Players who actually died (and admins who ghosted, would be nice to avoid counting them somehow)

/// Gets the chance for latejoin and midround injection, the dry_run argument is only used for forced injection.
/datum/game_mode/dynamic/proc/get_injection_chance(dry_run = FALSE)
	if(forced_injection)
		forced_injection = !dry_run
		return 100
	var/chance = 0
	// If the high pop override is in effect, we reduce the impact of population on the antag injection chance
	var/high_pop_factor = (current_players[CURRENT_LIVING_PLAYERS].len >= GLOB.dynamic_high_pop_limit)
	var/max_pop_per_antag = max(5,15 - round(threat_level/10) - round(current_players[CURRENT_LIVING_PLAYERS].len/(high_pop_factor ? 10 : 5)))
	if (!current_players[CURRENT_LIVING_ANTAGS].len)
		chance += 50 // No antags at all? let's boost those odds!
	else
		var/current_pop_per_antag = current_players[CURRENT_LIVING_PLAYERS].len / current_players[CURRENT_LIVING_ANTAGS].len
		if (current_pop_per_antag > max_pop_per_antag)
			chance += min(50, 25+10*(current_pop_per_antag-max_pop_per_antag))
		else
			chance += 25-10*(max_pop_per_antag-current_pop_per_antag)
	if (current_players[CURRENT_DEAD_PLAYERS].len > current_players[CURRENT_LIVING_PLAYERS].len)
		chance -= 30 // More than half the crew died? ew, let's calm down on antags
	if (threat > 70)
		chance += 15
	if (threat < 30)
		chance -= 15
	return round(max(0,chance))

/// Removes type from the list
/datum/game_mode/dynamic/proc/remove_from_list(list/type_list, type)
	for(var/I in type_list)
		if(istype(I, type))
			type_list -= I
	return type_list

/// Checks if a type in blocking_list is in rule_list.
/datum/game_mode/dynamic/proc/check_blocking(list/blocking_list, list/rule_list)
	if(blocking_list.len > 0)
		for(var/blocking in blocking_list)
			for(var/datum/executed in rule_list)
				if(blocking == executed.type)
					return TRUE
	return FALSE

/// Checks if client age is age or older.
/datum/game_mode/dynamic/proc/check_age(client/C, age)
	enemy_minimum_age = age
	if(get_remaining_days(C) == 0)
		enemy_minimum_age = initial(enemy_minimum_age)
		return TRUE // Available in 0 days = available right now = player is old enough to play.
	enemy_minimum_age = initial(enemy_minimum_age)
	return FALSE

/datum/game_mode/dynamic/make_antag_chance(mob/living/carbon/human/newPlayer)
	if (GLOB.dynamic_forced_extended)
		return
	if(EMERGENCY_ESCAPED_OR_ENDGAMED) // No more rules after the shuttle has left
		return

	update_playercounts()

	if (forced_latejoin_rule)
		forced_latejoin_rule.candidates = list(newPlayer)
		forced_latejoin_rule.trim_candidates()
		log_game("DYNAMIC: Forcing ruleset [forced_latejoin_rule]")
		if (forced_latejoin_rule.ready(TRUE))
			picking_midround_latejoin_rule(list(forced_latejoin_rule), forced = TRUE)
		forced_latejoin_rule = null

	else if (latejoin_injection_cooldown < world.time && prob(get_injection_chance()))
		var/list/drafted_rules = list()
		for (var/datum/dynamic_ruleset/latejoin/rule in latejoin_rules)
			if (rule.acceptable(current_players[CURRENT_LIVING_PLAYERS].len, threat_level) && threat >= rule.cost)
				// Classic secret : only autotraitor/minor roles
				if (GLOB.dynamic_classic_secret && !((rule.flags & TRAITOR_RULESET) || (rule.flags & MINOR_RULESET)))
					continue
				// No stacking : only one round-ender, unless threat level > stacking_limit.
				if (threat_level > GLOB.dynamic_stacking_limit && GLOB.dynamic_no_stacking)
					if(rule.flags & HIGHLANDER_RULESET && highlander_executed)
						continue

				rule.candidates = list(newPlayer)
				rule.trim_candidates()
				if (rule.ready())
					drafted_rules[rule] = rule.get_weight()

		if (drafted_rules.len > 0 && picking_midround_latejoin_rule(drafted_rules))
			var/latejoin_injection_cooldown_middle = 0.5*(GLOB.dynamic_latejoin_delay_max + GLOB.dynamic_latejoin_delay_min)
			latejoin_injection_cooldown = round(clamp(EXP_DISTRIBUTION(latejoin_injection_cooldown_middle), GLOB.dynamic_latejoin_delay_min, GLOB.dynamic_latejoin_delay_max)) + world.time

/// Refund threat, but no more than threat_level.
/datum/game_mode/dynamic/proc/refund_threat(regain)
	threat = min(threat_level,threat+regain)

/// Generate threat and increase the threat_level if it goes beyond, capped at 100
/datum/game_mode/dynamic/proc/create_threat(gain)
	threat = min(100, threat+gain)
	if(threat > threat_level)
		threat_level = threat

/// Expend threat, can't fall under 0.
/datum/game_mode/dynamic/proc/spend_threat(cost)
	threat = max(threat-cost,0)

/// Turns the value generated by lorentz distribution to threat value between 0 and 100.
/datum/game_mode/dynamic/proc/lorentz_to_threat(x)
	switch (x)
		if (-INFINITY to -20)
			return rand(0, 10)
		if (-20 to -10)
			return RULE_OF_THREE(-40, -20, x) + 50
		if (-10 to -5)
			return RULE_OF_THREE(-30, -10, x) + 50
		if (-5 to -2.5)
			return RULE_OF_THREE(-20, -5, x) + 50
		if (-2.5 to -0)
			return RULE_OF_THREE(-10, -2.5, x) + 50
		if (0 to 2.5)
			return RULE_OF_THREE(10, 2.5, x) + 50
		if (2.5 to 5)
			return RULE_OF_THREE(20, 5, x) + 50
		if (5 to 10)
			return RULE_OF_THREE(30, 10, x) + 50
		if (10 to 20)
			return RULE_OF_THREE(40, 20, x) + 50
		if (20 to INFINITY)
			return rand(90, 100)
			
/datum/game_mode/dynamic/proc/configure_ruleset(datum/dynamic_ruleset/ruleset)
	if(configuration)
		if(!configuration[ruleset.ruletype])
			return
		if(!configuration[ruleset.ruletype][ruleset.name])
			return
		var/rule_conf = configuration[ruleset.ruletype][ruleset.name]
		for(var/variable in rule_conf)
			if(isnull(ruleset.vars[variable]))
				stack_trace("Invalid dynamic configuration variable [variable] in [ruleset.ruletype] [ruleset.name].")
				continue
			ruleset.vars[variable] = rule_conf[variable]
		if(CONFIG_GET(flag/protect_roles_from_antagonist))
			ruleset.restricted_roles |= ruleset.protected_roles
		if(CONFIG_GET(flag/protect_assistant_from_antagonist))
			ruleset.restricted_roles |= "Assistant"