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/datums/organs/organ_external.dm

@@ -33,6 +33,9 @@
 	var/open = 0
 	var/stage = 0
 
+	// INTERNAL germs inside the organ, this is BAD if it's greater 0
+	var/germ_level = 0
+
 		// how often wounds should be updated, a higher number means less often
 	var/wound_update_accuracy = 20 // update every 20 ticks(roughly every minute)
 	New(var/datum/organ/external/P)
@@ -195,6 +198,11 @@
 				// amount of healing is spread over all the wounds
 				W.heal_damage((wound_update_accuracy * amount * W.amount * config.organ_regeneration_multiplier) / (20*owner.number_wounds+1))
 
+			if(W.germ_level > 100 && prob(10))
+				owner.adjustToxLoss(1 * wound_update_accuracy)
+			if(W.germ_level > 1000)
+				owner.adjustToxLoss(1 * wound_update_accuracy)
+
 		// sync the organ's damage with its wounds
 		src.update_damages()
 
@@ -222,6 +230,12 @@
 	proc/get_damage_fire()
 		return burn_dam
 
+	proc/is_infected()
+		for(var/datum/wound/W in wounds)
+			if(W.germ_level > 100)
+				return 1
+		return 0
+
 	process()
 		// process wounds, doing healing etc., only do this every 4 ticks to save processing power
 		if(owner.life_tick % wound_update_accuracy == 0)
@@ -239,6 +253,9 @@
 				return
 		if(config.bones_can_break && brute_dam > min_broken_damage * config.organ_health_multiplier && !(status & ORGAN_ROBOT))
 			src.fracture()
+		if(germ_level > 0)
+			for(var/datum/wound/W in wounds) if(!W.bandaged)
+				W.germ_level = max(W.germ_level, germ_level)
 		return
 
 	proc/fracture()
@@ -694,4 +711,4 @@ obj/item/weapon/organ/r_hand
 	icon_state = "r_hand_l"
 obj/item/weapon/organ/r_leg
 	name = "right leg"
-	icon_state = "r_leg_l"
+	icon_state = "r_leg_l"

code/datums/organs/wound.dm

@@ -41,6 +41,9 @@
 	// internal wounds can only be fixed through surgery
 	var/internal = 0
 
+	// amount of germs in the wound
+	var/germ_level = 0
+
 	// helper lists
 	var/tmp/list/desc_list = list()
 	var/tmp/list/damage_list = list()
@@ -143,7 +146,7 @@
 /datum/wound/gaping_wound
 	max_bleeding_stage = 2
 	stages = list("gaping wound" = 50, "large blood soaked clot" = 25, "large clot" = 15, "small angry scar" = 5, \
-	               "small straight scar" = 0)
+				   "small straight scar" = 0)
 
 /datum/wound/big_gaping_wound
 	max_bleeding_stage = 2
@@ -229,4 +232,4 @@
 	stages = list("severed vein" = 30, "cut vein" = 20, "damaged vein" = 10, "bruised vein" = 5)
 	max_bleeding_stage = 0
 
-	needs_treatment = 1
+	needs_treatment = 1