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+;;;;
+;;;; Terra Nostra is a Minecraft-like survival game for the commandline.
+;;;;
+;;;; This file defines in-game items.
+;;;; 
+;;;; (c) 2018 Daniel Vedder, MIT license
+;;;;
+
+(defstruct item
+	(name "")
+	(description "")
+	(weight 0)
+	(movable T)
+	(destroy-with '())
+	(drops '())
+	(craft-with '()))
+
+(let ((item-list NIL))
+	(defun register-item (symbol-name item-object)
+		(setf item-list
+			(cons (list symbol-name item-object) item-list)))
+
+	(defun get-item-type (symbol-name)
+		(cassoc symbol-name item-list))
+
+	(defun get-item (symbol-name)
+		(copy-item (get-item-type symbol-name))))
+
+
+;;; RESOURCE ITEMS
+
+(register-item 'wood
+	(make-item :name "wood" :weight 1
+		:description "A block of wood, just right for working with"))
+
+(register-item 'stone
+	(make-item :name "stone" :weight 2
+		:description "A fist-sized stone. What are you going to do with it?"))
+
+(register-item 'iron
+	(make-item :name "iron" :weight 3
+		:description "An iron ingot, ready for further crafting."))
+
+;;; NATURE ITEMS
+
+(register-item 'oak
+	(make-item :name "oak"
+		:description "An old, majestic oak, gnarled with age."
+		:destroy-with '(stone-axe iron-axe)
+		:drops '(wood) :movable NIL :weight 2000))
+
+(register-item 'rock
+	(make-item :name "rock"
+		:description "A huge lump of grey basalt, sticking out of the ground."
+		:destroy-with '(stone-pickaxe iron-pickaxe)
+		:drops '(stone) :movable NIL :weight 5000))
+
+;;; TOOL ITEMS
+
+;;TODO Faustkeil?
+
+(register-item 'stone-axe
+	(make-item :name "stone axe"
+		:description "An axe, crudely but effectively fashioned out of stone."
+		:weight 2 :craft-with '(stone wood)))
+
+(register-item 'iron-axe
+	(make-item :name "iron axe"
+		:description "A finely honed iron axe, just right for chopping wood."
+		:weight 3 :craft-with '(iron wood)))
+
+(register-item 'stone-pickaxe
+	(make-item :name "stone pickaxe"
+		:description "A pickaxe, somewhat helplessly made from stone."
+		:weight 3 :craft-with '(stone wood)))
+
+(register-item 'iron-pickaxe
+	(make-item :name "iron pickaxe"
+		:description "A solid iron pickaxe. Prepare to split rock!"
+		:weight 4 :craft-with '(iron wood)))