Add adding an item to the inventory when interacting with it

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

@@ -20,9 +20,10 @@ import com.last.commit.map.Interactable
 import com.last.commit.map.TimeMap
 import com.last.commit.stages.InventoryStage
 import kotlin.math.floor
+import GameState
 
 /** First screen of the application. Displayed after the application is created. */
-class FirstScreen : Screen, InputProcessor {
+class FirstScreen(val gameState: GameState) : Screen, InputProcessor {
 
     val viewportSize = 800f
 
@@ -34,7 +35,7 @@ class FirstScreen : Screen, InputProcessor {
     val camera = OrthographicCamera(viewportSize, viewportSize)
     lateinit var map: TimeMap // = TimeMap("tiled/base.tmx")
     val playerTexture = Texture("sprites/characters.png")
-    val player = Player(TextureRegion(playerTexture, 300, 44, 35, 43))
+    val player = Player(TextureRegion(playerTexture, 300, 44, 35, 43), gameState)
     var shapeRenderer = ShapeRenderer()
 
     val highlightColor = Color(0f, 0f, 1f, 0.5f)
@@ -46,14 +47,14 @@ class FirstScreen : Screen, InputProcessor {
 
         val gameConfig = this.loadGameConfig()
         val randomMap = gameConfig.getRandomMap()
-        map = TimeMap(randomMap)
+        map = TimeMap(randomMap, gameState)
         handleRatioChange()
 
         this.spawnPlayer()
         this.updateCamera()
 
         player.addItemToInventory("drill")
-        inventoryStage = InventoryStage(player.inventory)
+        inventoryStage = InventoryStage("sprites/genericItems_spritesheet_colored", gameState.inventory)
         shapeRenderer.setAutoShapeType(true)
 
         Gdx.input.setInputProcessor(this)
@@ -258,7 +259,7 @@ class FirstScreen : Screen, InputProcessor {
         } else if (character == 'i') {
             inventoryStage.visible = !inventoryStage.visible
         } else if (character == 'p') {
-            player.inventory.add("compass")
+            gameState.inventory.add("compass")
             inventoryStage.refresh()
         }
         return false

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

@@ -1,11 +1,22 @@
 package com.last.commit
 
 import com.badlogic.gdx.Game
+import com.last.commit.inventory.Inventory
+import GameState
 
 /** [com.badlogic.gdx.ApplicationListener] implementation shared by all platforms.  */
 class Game : Game() {
 
+    private lateinit var state: GameState
+
     override fun create() {
-        setScreen(FirstScreen())
+        createState()
+        setScreen(FirstScreen(state))
+    }
+    
+    fun createState() {
+        state = GameState(
+            Inventory()
+        )
     }
 }

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

@@ -0,0 +1,5 @@
+import com.last.commit.inventory.Inventory
+
+public data class GameState(
+    public val inventory: Inventory,
+)

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

@@ -5,9 +5,10 @@ import com.badlogic.gdx.graphics.g2d.TextureRegion
 import com.badlogic.gdx.math.Rectangle
 import com.badlogic.gdx.math.Vector2
 import com.last.commit.inventory.Inventory
+import GameState
 
 
-class Player(private val textureRegion: TextureRegion) : Collidable {
+class Player(private val textureRegion: TextureRegion, private val gameState: GameState) : Collidable {
 
     private var collider: Rectangle = Rectangle(0f, 0f, 0f, 0f)
     var position: Vector2 = Vector2.Zero
@@ -15,8 +16,6 @@ class Player(private val textureRegion: TextureRegion) : Collidable {
     private val movementSpeed = 200f
     private val interactionRange = 60f
 
-    val inventory = Inventory("sprites/genericItems_spritesheet_colored")
-
     init {
         val size = Math.max(textureRegion.regionWidth, textureRegion.regionHeight).toFloat()
         collider = Rectangle(0f, 0f, size, size)
@@ -24,7 +23,7 @@ class Player(private val textureRegion: TextureRegion) : Collidable {
     }
 
     fun addItemToInventory(name: String) {
-        this.inventory.add(name)
+        gameState.inventory.add(name)
     }
 
     fun getX(): Float {

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

@@ -1,18 +1,20 @@
 package com.last.commit.inventory
 
-class Inventory(path: String) {
+class Inventory {
 
     val items: MutableList<InventoryItem> = ArrayList()
-    val textureLoader = InventoryItemTextureLoader(path)
-
-    init {
-        textureLoader.parse()
-    }
+    public var updated = false
+    private set
 
     /**
      * @param name the name of the subtexture loaded from xml
      */
     fun add(name: String) {
-        items.add(InventoryItem(name, textureLoader.loadTexture(name)))
+        items.add(InventoryItem(name))
+        this.updated = true
+    }
+    
+    fun remove(name: String) {
+        items.removeIf() {item -> item.name == name}
     }
 }

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

@@ -2,6 +2,5 @@ package com.last.commit.inventory
 
 import com.badlogic.gdx.graphics.g2d.TextureRegion
 
-class InventoryItem(val name: String, val texture: TextureRegion) {
-
+data class InventoryItem(public val name: String) {
 }

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

@@ -12,19 +12,26 @@ class InventoryItemTextureLoader(path: String) {
     private val itemsSpriteSheet: Texture
     private val textureMapping: FileHandle
     private lateinit var subTextures: Array<XmlReader.Element>
+    private val textures: HashMap<String, TextureRegion> = HashMap()
 
     init {
         itemsSpriteSheet = Texture("${path}.png")
         textureMapping = Gdx.files.local("${path}.xml")
     }
 
-    fun loadTexture(itemName: String): TextureRegion {
-        var subtexture = subTextures.first { it.getAttribute("name") == itemName }
-        val x = subtexture.getIntAttribute("x")
-        val y = subtexture.getIntAttribute("y")
-        val width = subtexture.getIntAttribute("width")
-        val height = subtexture.getIntAttribute("height")
-        return TextureRegion(itemsSpriteSheet, x, y, width, height)
+    fun getTexture(itemName: String): TextureRegion {
+        var itemTexture = textures.get(itemName)
+
+        if (itemTexture == null) {
+            var subtexture = subTextures.first { it.getAttribute("name") == itemName }
+            val x = subtexture.getIntAttribute("x")
+            val y = subtexture.getIntAttribute("y")
+            val width = subtexture.getIntAttribute("width")
+            val height = subtexture.getIntAttribute("height")
+            itemTexture = TextureRegion(itemsSpriteSheet, x, y, width, height)
+            this.textures.set(itemName, itemTexture)
+        }
+        return itemTexture
     }
 
     fun parse() {
@@ -33,5 +40,4 @@ class InventoryItemTextureLoader(path: String) {
         this.subTextures = textureAtlasElement.getChildrenByName("SubTexture")
         println("Found ${subTextures.size} textures")
     }
-
-}
+}

core/src/main/kotlin/com/last/commit/map/Collectible.kt

@@ -2,6 +2,7 @@ package com.last.commit.map
 
 import com.badlogic.gdx.math.Rectangle
 import Position
+import GameState
 
 class Collectible(
         name: String,
@@ -18,8 +19,9 @@ class Collectible(
         this.collider = Rectangle(pos.x, pos.y, width, height)
     }
 
-    override fun interact(otherCollider: Rectangle) {
+    override fun interact(otherCollider: Rectangle, state: GameState) {
         println("Interacting with item $name")
+        state.inventory.add(this.name)
     }
 
     override fun getCollider(): Rectangle {

core/src/main/kotlin/com/last/commit/map/Door.kt

@@ -1,13 +1,14 @@
 package com.last.commit.map
 
+import GameState
 import com.badlogic.gdx.maps.tiled.TiledMapTileLayer.Cell
 import com.badlogic.gdx.math.Rectangle
 import com.last.commit.Wall
 
-
 class Door(gridX: Int, gridY: Int, wallCollider: Rectangle, cell: Cell) :
-    Wall(gridX, gridY, wallCollider, cell), Interactable {
-    override fun interact(otherCollider: Rectangle) {
+        Wall(gridX, gridY, wallCollider, cell), Interactable {
+
+    override fun interact(otherCollider: Rectangle, state: GameState) {
         println("interacting with door $this")
         if (isClosed) {
             isOpen = true
@@ -42,8 +43,12 @@ class Door(gridX: Int, gridY: Int, wallCollider: Rectangle, cell: Cell) :
 
     override fun toString(): String {
         return String.format(
-            "Door: %f:%f - %f:%f (isOpen: %b)", wallCollider.x, wallCollider.y, wallCollider.width,
-            wallCollider.height, isOpen
+                "Door: %f:%f - %f:%f (isOpen: %b)",
+                wallCollider.x,
+                wallCollider.y,
+                wallCollider.width,
+                wallCollider.height,
+                isOpen
         )
     }
-}
+}

core/src/main/kotlin/com/last/commit/map/Interactable.kt

@@ -1,9 +1,10 @@
 package com.last.commit.map
 
 import com.badlogic.gdx.math.Rectangle
+import GameState
 
 interface Interactable {
     fun getCollider(): Rectangle
 
-    fun interact(otherCollider: Rectangle)
+    fun interact(otherCollider: Rectangle, state: GameState)
 }

core/src/main/kotlin/com/last/commit/map/TimeMap.kt

@@ -15,9 +15,10 @@ import com.last.commit.Collidable
 import com.last.commit.Player
 import com.last.commit.Wall
 import Position
+import GameState
 
 
-class TimeMap(fileName: String) {
+class TimeMap(fileName: String, val state: GameState) {
     private val CELL_SIZE = 64
 
     private val walls = Array<Wall>()
@@ -168,7 +169,7 @@ class TimeMap(fileName: String) {
         val interactable: Interactable = this.findInteractableAtPosition(gridX, gridY) ?: return
         //else continue
 
-        interactable.interact(blockingCollider)
+        interactable.interact(blockingCollider, state)
     }
 
 

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

@@ -3,8 +3,14 @@ package com.last.commit.stages
 import com.badlogic.gdx.scenes.scene2d.Stage
 import com.badlogic.gdx.scenes.scene2d.ui.Image
 import com.last.commit.inventory.Inventory
+import com.last.commit.inventory.InventoryItemTextureLoader
 
-class InventoryStage(val inventory: Inventory) : Stage() {
+class InventoryStage(path: String, val inventory: Inventory) : Stage() {
+    val textureLoader = InventoryItemTextureLoader(path)
+    
+    init {
+        textureLoader.parse()
+    }
 
     var visible = false
         set(visible) {
@@ -17,7 +23,7 @@ class InventoryStage(val inventory: Inventory) : Stage() {
     fun refresh() {
         super.clear()
         inventory.items.forEachIndexed { index, inventoryItem ->
-            val image = Image(inventoryItem.texture)
+            val image = Image(textureLoader.getTexture(inventoryItem.name))
             image.x = index * 32f
             image.width = 32f
             image.height = 32f
@@ -31,6 +37,9 @@ class InventoryStage(val inventory: Inventory) : Stage() {
     }
 
     override fun draw() {
+        if (inventory.updated) {
+            this.refresh()
+        }
         if (visible) {
             super.draw()
         }