Added basic germ code.

This will only trigger in surgery for now - That is when you cut someone open in surgery, you'd better wash your hands before, or otherwise you'll get infected wounds.

code/modules/mob/living/carbon/carbon.dm

@@ -353,10 +353,12 @@
 		if(H.gloves)
 			if(H.gloves.clean_blood())
 				H.update_inv_gloves(0)
+			H.gloves.germ_level = 0
 		else
 			if(H.bloody_hands)
 				H.bloody_hands = 0
 				H.update_inv_gloves(0)
+			H.germ_level = 0
 	update_icons()	//apply the now updated overlays to the mob
 
 

code/modules/mob/living/carbon/human/examine.dm

@@ -280,6 +280,8 @@
 					var/this_wound_desc = W.desc
 					if(W.bleeding()) this_wound_desc = "bleeding [this_wound_desc]"
 					else if(W.bandaged) this_wound_desc = "bandaged [this_wound_desc]"
+					if(W.germ_level > 1000) this_wound_desc = "badly infected [this_wound_desc]"
+					else if(W.germ_level > 100) this_wound_desc = "infected [this_wound_desc]"
 					if(this_wound_desc in wound_descriptors)
 						wound_descriptors[this_wound_desc] += W.amount
 						continue

code/modules/mob/living/carbon/human/human.dm

@@ -943,3 +943,10 @@
 	if(wear_suit && wear_suit.flags_inv & HIDEJUMPSUIT && ((head && head.flags_inv & HIDEMASK) || wear_mask))
 		return NEUTER
 	return gender
+
+
+/mob/living/carbon/human/proc/increase_germ_level(n)
+    if(gloves)
+        gloves.germ_level += n
+    else
+        germ_level += n

code/modules/mob/living/carbon/human/life.dm

@@ -1166,6 +1166,12 @@
 
 			if(druggy)
 				druggy = max(druggy-1, 0)
+
+			// Increase germ_level by 1 on each life tick
+			germ_level += 1
+			// If you're dirty, your gloves will become dirty, too.
+			if(gloves && germ_level > gloves.germ_level && prob(30))
+				gloves.germ_level += 1
 		return 1
 
 	proc/handle_regular_hud_updates()
@@ -1535,4 +1541,4 @@
 			Paralyse(rand(15,28))
 
 #undef HUMAN_MAX_OXYLOSS
-#undef HUMAN_CRIT_MAX_OXYLOSS
+#undef HUMAN_CRIT_MAX_OXYLOSS