WIP inventory implementation

Former-commit-id: ce7d2125209c2c4f49b7d755b068ce72387f5e8f
Former-commit-id: f413b2699ee7448f3d3b70775ca7b679ade66475

src/net/torvald/terrarum/gameitem/InventoryItem.kt

@@ -8,20 +8,21 @@ import org.newdawn.slick.GameContainer
 interface InventoryItem {
     /**
      * Internal ID of an Item, Long
-     * 0-4096: Tiles
-     * 4097-32767: Static items
+     * 0-4095: Tiles
+     * 4096-32767: Static items
      * 32768-16777215: Dynamic items
      * >= 16777216: Actor RefID
      */
     val itemID: Int
 
     /**
-     * Weight of the item
+     * Base mass of the item. Real mass must be calculated from
+     *      mass * scale^3
      */
     var mass: Double
 
     /**
-     * Scale of the item. Real mass: mass * (scale^3)
+     * Scale of the item.
      *
      * For static item, it must be 1.0. If you tinkered the item to be bigger,
      * it must be re-assigned as Dynamic Item
@@ -57,10 +58,4 @@ interface InventoryItem {
      * Effects applied (continuously or not) while thrown to the world
      */
     fun effectWhenTakenOut(gc: GameContainer, delta: Int)
-
-    /**
-     * Effects applied (continuously or not) while thrown to the world,
-     * called by the proxy Actor
-     */
-    fun worldActorEffect(gc: GameContainer, delta: Int)
 }

src/net/torvald/terrarum/gameitem/InventoryItemAdapter.kt

@@ -0,0 +1,30 @@
+package net.torvald.terrarum.gameitem
+
+import org.newdawn.slick.GameContainer
+
+/**
+ * Created by SKYHi14 on 2016-12-12.
+ */
+abstract class InventoryItemAdapter : InventoryItem {
+    override abstract val itemID: Int
+    override abstract var mass: Double
+    override abstract var scale: Double
+
+    override fun effectWhileInPocket(gc: GameContainer, delta: Int) {
+    }
+
+    override fun effectWhenPickedUp(gc: GameContainer, delta: Int) {
+    }
+
+    override fun primaryUse(gc: GameContainer, delta: Int) {
+    }
+
+    override fun secondaryUse(gc: GameContainer, delta: Int) {
+    }
+
+    override fun effectWhenThrown(gc: GameContainer, delta: Int) {
+    }
+
+    override fun effectWhenTakenOut(gc: GameContainer, delta: Int) {
+    }
+}