Unified radiation system

code/game/objects/items/devices/geiger.dm

@@ -0,0 +1,53 @@
+#define RAD_LEVEL_LOW 5 //10 // Around the level at which radiation starts to become harmful
+#define RAD_LEVEL_MODERATE 15 //15
+#define RAD_LEVEL_HIGH 50 //50
+#define RAD_LEVEL_VERY_HIGH 100 //100
+
+//Geiger counter
+//Rewritten version of TG's geiger counter
+//I opted to show exact radiation levels
+
+/obj/item/device/geiger
+	name = "geiger counter"
+	desc = "A handheld device used for detecting and measuring radiation in an area."
+	icon_state = "geiger_off"
+	item_state = "multitool"
+	w_class = ITEMSIZE_SMALL
+	var/scanning = 0
+	var/radiation_count = 0
+
+/obj/item/device/geiger/New()
+	processing_objects |= src
+
+/obj/item/device/geiger/process()
+	if(!scanning)
+		return
+	radiation_count = radiation_repository.report_rads(get_turf(src))
+	update_icon()
+
+/obj/item/device/geiger/examine(mob/user)
+	..(user)
+	to_chat(user, "<span class='warning'>[scanning ? "ambient" : "stored"] radiation level: [radiation_count ? radiation_count : "0"]Bq.</span>")
+
+/obj/item/device/geiger/attack_self(var/mob/user)
+	scanning = !scanning
+	update_icon()
+	to_chat(user, "<span class='notice'>\icon[src] You switch [scanning ? "on" : "off"] [src].</span>")
+
+/obj/item/device/geiger/update_icon()
+	if(!scanning)
+		icon_state = "geiger_off"
+		return 1
+
+	switch(radiation_count)
+		if(null) icon_state = "geiger_on_1"
+		if(-INFINITY to RAD_LEVEL_LOW) icon_state = "geiger_on_1"
+		if(RAD_LEVEL_LOW + 1 to RAD_LEVEL_MODERATE) icon_state = "geiger_on_2"
+		if(RAD_LEVEL_MODERATE + 1 to RAD_LEVEL_HIGH) icon_state = "geiger_on_3"
+		if(RAD_LEVEL_HIGH + 1 to RAD_LEVEL_VERY_HIGH) icon_state = "geiger_on_4"
+		if(RAD_LEVEL_VERY_HIGH + 1 to INFINITY) icon_state = "geiger_on_5"
+
+#undef RAD_LEVEL_LOW
+#undef RAD_LEVEL_MODERATE
+#undef RAD_LEVEL_HIGH
+#undef RAD_LEVEL_VERY_HIGH

code/game/objects/structures/crates_lockers/closets/utility_closets.dm

@@ -155,6 +155,8 @@
 	new /obj/item/clothing/head/radiation(src)
 	new /obj/item/clothing/suit/radiation(src)
 	new /obj/item/clothing/head/radiation(src)
+	new /obj/item/device/geiger(src)
+	new /obj/item/device/geiger(src)
 
 /*
  * Bombsuit closet