Populate the array with null values on initialization and added the start of a resize function

src/main/kotlin/data/TileNavigatedArray.kt

@@ -1,16 +1,32 @@
 package technology.zim.data
 
+import java.util.Arrays
+import kotlin.arrayOfNulls
+
 //Generic array that accepts a Tile for item lookups
 //Row-major for improved memory locality.. maybe make it flexible?
 
 //Delegation should allow direct access to functions, with added functions for convenience
 class TileNavigatedArray<T>(val data: ArrayList<T?> = ArrayList<T?>(), var colSize:Int = 10,
                             var rowSize:Int = 10, val colMajor:Boolean = false) : MutableList<T?> by data {
-//TODO: Create initializer that fills array with null values
-
 
     constructor(col:Int, row:Int,major:Boolean) : this(colSize = col, rowSize = row,colMajor = major) {
     }
+    init {
+        for(i in 0..rowSize*colSize){
+            data.add(null)
+        }
+    }
+
+    //TODO: Test resize properly
+    fun resize(colSize:Int, rowSize:Int) {
+        this.colSize = colSize
+        this.rowSize = rowSize
+        for(i in data.size..colSize*rowSize-data.size) {
+            data.add(null)
+        }
+        assert(data.size == this.colSize*this.rowSize)
+    }
 
     //Accept a tile, use its coordinates to pull the requested data
     fun get(tile: Tile):T? {