EMP Refactor & Multi Z-level EMPs (#17781)

* sdfasf

* sdfas

* dsf

code/modules/organs/organ.dm

@@ -388,7 +388,9 @@
 			name = "mechanically assisted [initial(name)]"
 	icon_state = initial(icon_state)
 
-/obj/item/organ/emp_act(var/severity)
+/obj/item/organ/emp_act(severity)
+	. = ..()
+
 	if(!(status & ORGAN_ASSISTED))
 		return
 
@@ -398,12 +400,10 @@
 		organ_fragility = 1
 
 	switch (severity)
-		if (1.0)
+		if (EMP_HEAVY)
 			take_surge_damage(15 * emp_coeff * organ_fragility)
-		if (2.0)
+		if (EMP_LIGHT)
 			take_surge_damage(8 * emp_coeff * organ_fragility)
-		if(3.0)
-			take_surge_damage(4 * emp_coeff * organ_fragility)
 
 	return TRUE