add usable key

assets/tiled/level_herbst.tmx

@@ -356,7 +356,7 @@
 0,0,0,0,184,185,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,176,0,0,0,0,0,0,0,0,177,0,0,0,0,0,0,0,0,0,
 0,0,0,0,211,212,0,0,184,185,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,176,129,129,0,0,0,0,0,129,177,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,211,212,0,0,0,0,0,0,0,0,184,185,0,0,0,0,0,0,184,185,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,176,129,129,0,0,0,0,129,129,177,0,0,0,0,0,0,0,0,0,
-0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,211,212,0,0,0,0,0,0,211,212,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,152,204,204,204,467,204,204,204,204,153,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,211,212,0,0,0,0,0,0,211,212,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,152,204,204,204,299,204,204,204,204,153,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,184,185,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

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

@@ -1,10 +1,9 @@
 package com.last.commit
 
-import com.badlogic.gdx.Input
 import com.badlogic.gdx.InputProcessor
 import com.last.commit.screen.TimeTravelScreen
 
-class GameInputProcessor(val game: Game, ) : InputProcessor{
+class GameInputProcessor(val game: Game) : InputProcessor {
 
     lateinit var activeScreen: TimeTravelScreen
 
@@ -13,6 +12,7 @@ class GameInputProcessor(val game: Game, ) : InputProcessor{
     }
 
     override fun keyTyped(character: Char): Boolean {
+
         return false
     }
 

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

@@ -1,15 +1,17 @@
 package com.last.commit.map
 
+import GameState
+import Position
 import com.badlogic.gdx.math.Rectangle
 import com.last.commit.audio.GameSoundEffect
-import Position
+import com.last.commit.inventory.InventoryItem
-import GameState
 
 class Collectible(
-        name: String,
+    name: String,
-        val pos: Position,
+    val pos: Position,
-        width: Float,
+    width: Float,
-        height: Float
+    height: Float,
+    val requiredItem: String
 ) : Interactable {
 
     val name: String
@@ -26,6 +28,20 @@ class Collectible(
         state.inventory.add(this.name)
     }
 
+    override fun canInteract(state: GameState): Boolean {
+        if (requiredItem == "") {
+            return true
+        }
+        val item: InventoryItem? = state.inventory.items.find { it.name == requiredItem }
+
+        if (item == null) {
+            return false
+        }
+
+        return true
+
+    }
+
     override fun getCollider(): Rectangle {
         return this.collider
     }

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

@@ -5,9 +5,24 @@ import com.badlogic.gdx.maps.tiled.TiledMapTileLayer.Cell
 import com.badlogic.gdx.math.Rectangle
 import com.last.commit.Wall
 import com.last.commit.audio.GameSoundEffect
+import com.last.commit.inventory.InventoryItem
 
 class Door(gridX: Int, gridY: Int, wallCollider: Rectangle, cell: Cell) :
-        Wall(gridX, gridY, wallCollider, cell), Interactable {
+    Wall(gridX, gridY, wallCollider, cell), Interactable {
+
+
+    override fun canInteract(state: GameState): Boolean {
+
+        val requiredItem: String = cell.getTile().getProperties().get("requiredItem", "", String::class.java)
+
+        val item: InventoryItem? = state.inventory.items.find { it.name == requiredItem }
+
+        if (item == null) {
+            return requiredItem == ""
+        } else {
+            return requiredItem == item.name
+        }
+    }
 
     override fun interact(otherCollider: Rectangle, state: GameState) {
         println("interacting with door $this")
@@ -46,12 +61,12 @@ class Door(gridX: Int, gridY: Int, wallCollider: Rectangle, cell: Cell) :
 
     override fun toString(): String {
         return String.format(
-                "Door: %f:%f - %f:%f (isOpen: %b)",
+            "Door: %f:%f - %f:%f (isOpen: %b)",
-                wallCollider.x,
+            wallCollider.x,
-                wallCollider.y,
+            wallCollider.y,
-                wallCollider.width,
+            wallCollider.width,
-                wallCollider.height,
+            wallCollider.height,
-                isOpen
+            isOpen
         )
     }
 }

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

@@ -1,10 +1,12 @@
 package com.last.commit.map
 
-import com.badlogic.gdx.math.Rectangle
 import GameState
+import com.badlogic.gdx.math.Rectangle
 
 interface Interactable {
     fun getCollider(): Rectangle
 
     fun interact(otherCollider: Rectangle, state: GameState)
+
+    fun canInteract(state: GameState): Boolean
 }

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

@@ -158,10 +158,11 @@ class TimeMap(fileName: String, val state: GameState) {
             val height = mapObjectProperties.get("height", Float::class.java)
 
             if (mapObject is RectangleMapObject) {
-                val itemName = mapObjectProperties.get("item", String::class.java)
+                //check wether itemName is null and continue in case it is
-                itemName?. let {
+                val itemName = mapObjectProperties.get("item", String::class.java) ?: continue
-                    this.collectibles.add(Collectible(itemName, Position(x, y, gridX, gridY), width, height))
+                val requiredItem = mapObjectProperties.get("requiredItem", String::class.java) ?: ""
-                }
+
+                this.collectibles.add(Collectible(itemName, Position(x, y, gridX, gridY), width, height, requiredItem))
             } else {
                 println("Found non-rectangular map object at ${x}-${y} skipping it")
             }
@@ -186,13 +187,16 @@ class TimeMap(fileName: String, val state: GameState) {
     fun interactWith(x: Float, y: Float, blockingCollider: Rectangle) {
         val gridX = x.toInt() / CELL_SIZE
         val gridY = y.toInt() / CELL_SIZE
-        println("Interacting with element at $gridX:$gridY")
 
         //if no door is found return
         val interactable: Interactable = this.findInteractableAtPosition(gridX, gridY) ?: return
         //else continue
-
+        if (interactable.canInteract(state)) {
-        interactable.interact(blockingCollider, state)
+            println("Interacting with element at $gridX:$gridY")
+            interactable.interact(blockingCollider, state)
+        } else {
+            println("Cannot interact with $gridX:$gridY")
+        }
     }