Adds minor roundstart traits! (ala CDDA, etc.)

code/modules/mob/living/status_procs.dm

@@ -146,10 +146,23 @@
 	else
 		status_traits[trait] |= list(source)
 
-/mob/living/proc/remove_trait(trait, list/sources)
+/mob/living/proc/add_trait_datum(trait) //separate proc due to the way these ones are handled
+	if(has_trait(trait))
+		return
+	if(!SStraits || !SStraits.traits[trait])
+		return
+	var/datum/trait/T = SStraits.traits[trait]
+	new T (src)
+	return TRUE
+
+/mob/living/proc/remove_trait(trait, list/sources, force)
+
 	if(!status_traits[trait])
 		return
 
+	if(locate(ROUNDSTART_TRAIT) in status_traits[trait] && !force) //mob traits applied through roundstart cannot normally be removed
+		return
+
 	if(!sources) // No defined source cures the trait entirely.
 		status_traits -= trait
 		return
@@ -167,6 +180,12 @@
 	if(!LAZYLEN(status_traits[trait]))
 		status_traits -= trait
 
+/mob/living/proc/remove_trait_datum(trait)
+	var/datum/trait/T = roundstart_traits[trait]
+	if(T)
+		qdel(T)
+		return TRUE
+
 /mob/living/proc/has_trait(trait, list/sources)
 	if(!status_traits[trait])
 		return FALSE
@@ -181,6 +200,9 @@
 		if(LAZYLEN(status_traits[trait]))
 			return TRUE
 
+/mob/living/proc/has_trait_datum(trait)
+	return roundstart_traits[trait]
+
 /mob/living/proc/remove_all_traits()
 	status_traits = list()