Adds a configurable message to be sent to mobs on polymorph (#28541)

code/controllers/configuration.dm

@@ -265,6 +265,8 @@
 
 	var/irc_announce_new_game = FALSE
 
+	var/list/policies = list()
+
 /datum/configuration/New()
 	gamemode_cache = typecacheof(/datum/game_mode,TRUE)
 	for(var/T in gamemode_cache)
@@ -288,6 +290,7 @@
 /datum/configuration/proc/Reload()
 	load("config/config.txt")
 	load("config/game_options.txt","game_options")
+	load("config/policies.txt", "policies")
 	loadsql("config/dbconfig.txt")
 	if (maprotation)
 		loadmaplist("config/maps.txt")
@@ -779,6 +782,8 @@
 					mice_roundstart = text2num(value)
 				else
 					GLOB.config_error_log << "Unknown setting in configuration: '[name]'"
+		else if(type == "policies")
+			policies[name] = value
 
 	fps = round(fps)
 	if(fps <= 0)

code/modules/projectiles/projectile/magic.dm

@@ -277,6 +277,8 @@
 
 	to_chat(new_mob, "<span class='warning'>Your form morphs into that of a [randomize].</span>")
 
+	to_chat(new_mob, config.policies["polymorph"])
+
 	qdel(M)
 	return new_mob
 

config/policies.txt

@@ -0,0 +1,5 @@
+## SERVER POLICIES ##
+# Each line is pure html that gets sent to the user under certain conditions
+
+# When a mob is polymorphed
+POLYMORPH <span class='danger'>Note that you are allowed to act as an antagonist while transformed into a hostile mob, unless you volunteered for or sought out transformation.</span>