fix: reimplement remembering last played level

Going back to the level select scene will put you on the sort and size
that you just played.

Author: danielzting

scenes/levels_redesign.tscn

@@ -73,9 +73,7 @@ margin_top = 20.0
 margin_right = 596.0
 margin_bottom = 593.0
 size_flags_vertical = 3
-text = "\"\"\"
-This is a description for the level in the form of psuedocode.
-\"\"\"
+text = "This is a description for the level in the form of psuedocode.
 
 def algorithm(parameter):
     return result"

scripts/levels_redesign.gd

@@ -18,11 +18,13 @@ const MAX_WAIT = 4
 const MIN_SIZE = 8
 const MAX_SIZE = 128
 
-var _index = 0
+var _index = LEVELS.find(GlobalScene.get_param("level"))
 var _level: ComparisonSort
-var _size = ArrayModel.DEFAULT_SIZE
+var _size = GlobalScene.get_param("size", ArrayModel.DEFAULT_SIZE)
 
 func _ready():
+    if _index == -1:
+        _index = 0
     _level = LEVELS[_index].new(ArrayModel.new(_size))
     _level.connect("done", self, "_on_ComparisonSort_done")
     $NamesContainer/Names/Current.text = _level.NAME