move all factions to defines

code/modules/blob2/overmind/overmind.dm

@@ -10,7 +10,7 @@ var/list/overminds = list()
 	see_in_dark = 8
 	invisibility = INVISIBILITY_OBSERVER
 
-	faction = "blob"
+	faction = FACTION_BLOB
 	var/obj/structure/blob/core/blob_core = null // The blob overmind's core
 	var/blob_points = 0
 	var/max_blob_points = 200

code/modules/blob2/overmind/types.dm

@@ -9,7 +9,7 @@
 	var/color = "#FFFFFF"	// The actual blob's color.
 	var/complementary_color = "#000000" //a color that's complementary to the normal blob color.  Blob mobs are colored in this.
 
-	var/faction = "blob"				// The blob's faction.
+	var/faction = FACTION_BLOB				// The blob's faction.
 
 	var/attack_message = "The blob attacks you" // Base message the mob gets when blob_act() gets called on them by the blob.  An exclaimation point is added to the end.
 	var/attack_message_living = null	// Appended to attack_message, if the target fails isSynthetic() check.

code/modules/blob2/overmind/types/grey_goo.dm

@@ -14,7 +14,7 @@
 	attack_message = "The tide tries to swallow you"
 	attack_message_living = ", and you feel your skin dissolve"
 	attack_message_synth = ", and your external plating dissolves"
-	faction = "nanomachines"
+	faction = FACTION_NANOMACHINES
 
 /datum/blob_type/grey_goo/on_emp(obj/structure/blob/B, severity)
 	B.adjust_integrity(-(20 / severity))