Ports the radiation subsystem and cleans up damage flags. (#15715)

code/game/objects/items/weapons/material/caltrops.dm

@@ -49,7 +49,7 @@
 					damage_coef -= 0.2
 					return
 
-				if(H.apply_damage(25 * damage_coef, BRUTE, affecting))
+				if(H.apply_damage(25 * damage_coef, DAMAGE_BRUTE, affecting))
 					H.updatehealth()
 
 					if(H.can_feel_pain())

code/game/objects/items/weapons/material/knives.dm

@@ -54,7 +54,7 @@
 	for(var/thing in O.implants)
 		var/obj/S = thing
 		usr.visible_message("<span class='notice'>[usr] starts carefully digging out something in [H == usr ? "themselves" : H]...</span>")
-		O.take_damage(8, 0, DAM_SHARP|DAM_EDGE, src)
+		O.take_damage(8, 0, DAMAGE_FLAG_SHARP|DAMAGE_FLAG_EDGE, src)
 		H.custom_pain("<font size=3><span class='danger'>It burns!</span></font>", 50)
 		if(do_mob(usr, H, 100))
 			H.remove_implant(S, FALSE)

code/game/objects/items/weapons/material/swords.dm

@@ -36,7 +36,7 @@
 	return FALSE
 
 /obj/item/material/sword/perform_technique(var/mob/living/carbon/human/target, var/mob/living/carbon/human/user, var/target_zone)
-	var/armor_reduction = target.get_blocked_ratio(target_zone, BRUTE, DAM_EDGE|DAM_SHARP, damage = force)*100
+	var/armor_reduction = target.get_blocked_ratio(target_zone, DAMAGE_BRUTE, DAMAGE_FLAG_EDGE|DAMAGE_FLAG_SHARP, damage = force)*100
 	var/obj/item/organ/external/affecting = target.get_organ(target_zone)
 	if(!affecting)
 		return

code/game/objects/items/weapons/material/twohanded.dm

@@ -605,7 +605,7 @@
 	icon_state = "flag_hegemony0"
 	base_icon = "flag_hegemony"
 	contained_sprite = TRUE
-	damtype = BURN
+	damtype = DAMAGE_BURN
 
 /obj/item/material/twohanded/pike/silver/Initialize(newloc, material_key)
 	. = ..(newloc, MATERIAL_SILVER)