Improved creature AI and random mob spawning in caves.

Also equipment lockers.

Conflicts:
	code/game/objects/items/weapons/cards_ids.dm
	code/modules/mining/materials.dm
	code/modules/mining/mine_turfs.dm
	code/modules/mining/ores_coins.dm
	code/modules/mob/living/simple_animal/hostile/mining_mobs.dm
	code/modules/projectiles/ammunition/bullets.dm
	code/modules/projectiles/guns/energy/special.dm
	compare_report_tg.txt
	icons/obj/device.dmi
	icons/obj/mining.dmi
	icons/obj/vehicles.dmi
	maps/tgstation.2.1.0.0.1.dmm
	maps/vgstation1.0.0.dmm

code/modules/mining/materials.dm

@@ -0,0 +1,139 @@
+/**
+* Materials system
+*
+* Replaces all of the horrible variables that tracked each individual thing.
+*/
+
+/**
+* MATERIALS DATUM
+*
+* Tracks and manages material storage for an object.
+*/
+/datum/materials
+	var/list/datum/material/storage[0]
+
+/datum/materials/New()
+	for(var/matdata in typesof(/datum/material) - /datum/material)
+		var/datum/material/mat = new matdata
+		storage[mat.id]=mat
+
+/datum/materials/proc/addAmount(var/mat_id,var/amount)
+	if(!(mat_id in storage))
+		warning("addAmount(): Unknown material [mat_id]!")
+		return
+	// I HATE BYOND
+	// storage[mat_id].stored++
+	var/datum/material/mat=storage[mat_id]
+	mat.stored += amount
+	storage[mat_id]=mat
+
+/datum/materials/proc/removeAmount(var/mat_id,var/amount)
+	if(!(mat_id in storage))
+		warning("removeAmount(): Unknown material [mat_id]!")
+		return
+	addAmount(mat_id,-amount)
+
+/datum/materials/proc/getAmount(var/mat_id)
+	if(!(mat_id in storage))
+		warning("getAmount(): Unknown material [mat_id]!")
+		return 0
+
+	var/datum/material/mat=getMaterial(mat_id)
+	return mat.stored
+
+/datum/materials/proc/getMaterial(var/mat_id)
+	if(!(mat_id in storage))
+		warning("getMaterial(): Unknown material [mat_id]!")
+		return 0
+
+	return storage[mat_id]
+
+
+/datum/material
+	var/name=""
+	var/processed_name=""
+	var/id=""
+	var/stored=0
+	var/cc_per_sheet=CC_PER_SHEET_MISC
+	var/oretype=null
+	var/sheettype=null
+	var/cointype=null
+	var/value=0
+
+/datum/material/New()
+	if(processed_name=="")
+		processed_name=name
+
+/datum/material/iron
+	name="Iron"
+	id="iron"
+	value=1
+	cc_per_sheet=CC_PER_SHEET_METAL
+	oretype=/obj/item/weapon/ore/iron
+	sheettype=/obj/item/stack/sheet/metal
+	cointype=/obj/item/weapon/coin/iron
+
+/datum/material/glass
+	name="Sand"
+	processed_name="Glass"
+	id="glass"
+	value=1
+	cc_per_sheet=CC_PER_SHEET_GLASS
+	oretype=/obj/item/weapon/ore/glass
+	sheettype=/obj/item/stack/sheet/glass
+
+/datum/material/diamond
+	name="Diamond"
+	id="diamond"
+	value=40
+	oretype=/obj/item/weapon/ore/diamond
+	sheettype=/obj/item/stack/sheet/mineral/diamond
+	cointype=/obj/item/weapon/coin/diamond
+
+/datum/material/plasma
+	name="Plasma"
+	id="plasma"
+	value=40
+	oretype=/obj/item/weapon/ore/plasma
+	sheettype=/obj/item/stack/sheet/mineral/plasma
+	cointype=/obj/item/weapon/coin/plasma
+
+/datum/material/gold
+	name="Gold"
+	id="gold"
+	value=20
+	oretype=/obj/item/weapon/ore/gold
+	sheettype=/obj/item/stack/sheet/mineral/gold
+	cointype=/obj/item/weapon/coin/gold
+
+/datum/material/silver
+	name="Silver"
+	id="silver"
+	value=20
+	oretype=/obj/item/weapon/ore/silver
+	sheettype=/obj/item/stack/sheet/mineral/silver
+	cointype=/obj/item/weapon/coin/silver
+
+/datum/material/uranium
+	name="Uranium"
+	id="uranium"
+	value=20
+	oretype=/obj/item/weapon/ore/uranium
+	sheettype=/obj/item/stack/sheet/mineral/uranium
+	cointype=/obj/item/weapon/coin/uranium
+
+/datum/material/clown
+	name="Bananium"
+	id="clown"
+	value=100
+	oretype=/obj/item/weapon/ore/clown
+	sheettype=/obj/item/stack/sheet/mineral/clown
+	cointype=/obj/item/weapon/coin/clown
+
+/datum/material/plastic
+	name="Plastic"
+	id="plastic"
+	value=1
+	oretype=null
+	sheettype=/obj/item/stack/sheet/mineral/plastic
+	cointype=null