fixed several bugs

godot/scripts/globalvars.gd

@@ -2,7 +2,7 @@ extends Node
 
 var selected_player:int = 0
 var seconds_left:float = 0.0
-var difficulty:int = 1
+var difficulty:float = 1.0
 var rotation_paused:bool = false
 var players_remaining:Array = [0,1,2,3]
 var current_solution:int