rework inventory handling

core/src/main/kotlin/com/last/commit/FirstScreen.kt

@@ -198,6 +198,7 @@ class FirstScreen : Screen, InputProcessor {
     }
 
     override fun resize(width: Int, height: Int) {
+        inventoryStage.resize(width, height)
         // Resize your screen here. The parameters represent the new window size.
     }
 
@@ -238,8 +239,10 @@ class FirstScreen : Screen, InputProcessor {
             map.teleport(player)
         } else if (character == 'i') {
             inventoryStage.visible = !inventoryStage.visible
+        } else if (character == 'p') {
+            player.inventory.add("compass")
+            inventoryStage.refresh()
         }
-        // TODO Auto-generated method stub
         return false
     }
 

core/src/main/kotlin/com/last/commit/Player.kt

@@ -15,7 +15,7 @@ class Player(private val textureRegion: TextureRegion) : Collidable {
     private val movementSpeed = 200f
     private val interactionRange = 60f
 
-    val inventory = Inventory()
+    val inventory = Inventory("sprites/genericItems_spritesheet_colored")
 
     init {
         val size = Math.max(textureRegion.regionWidth, textureRegion.regionHeight).toFloat()

core/src/main/kotlin/com/last/commit/inventory/Inventory.kt

@@ -1,14 +1,17 @@
 package com.last.commit.inventory
 
-class Inventory {
+class Inventory(path: String) {
 
     val items: MutableList<InventoryItem> = ArrayList()
-    val textureLoader = InventoryItemTextureLoader("sprites/genericItems_spritesheet_colored")
+    val textureLoader = InventoryItemTextureLoader(path)
 
     init {
         textureLoader.parse()
     }
 
+    /**
+     * @param name the name of the subtexture loaded from xml
+     */
     fun add(name: String) {
         items.add(InventoryItem(name, textureLoader.loadTexture(name)))
     }

core/src/main/kotlin/com/last/commit/stages/InventoryStage.kt

@@ -4,14 +4,21 @@ import com.badlogic.gdx.scenes.scene2d.Stage
 import com.badlogic.gdx.scenes.scene2d.ui.Image
 import com.last.commit.inventory.Inventory
 
-class InventoryStage(inventory: Inventory) : Stage() {
+class InventoryStage(val inventory: Inventory) : Stage() {
 
     var visible = false
+        set(visible) {
+            field = visible
+            if (visible) {
+                refresh()
+            }
+        }
 
-    init {
-        for (item in inventory.items) {
-
-            val image = Image(item.texture)
+    fun refresh() {
+        super.clear()
+        inventory.items.forEachIndexed { index, inventoryItem ->
+            val image = Image(inventoryItem.texture)
+            image.x = index * 32f
             image.width = 32f
             image.height = 32f