WIP make NAT playgrounds component-based (#124)

projects/nat-flixel-desktop-playground/source/EntrySpriteSystem.hx

@@ -8,9 +8,8 @@ import nat.ArchiveController;
 import nat.ArchiveUI;
 import nat.Archive;
 import nat.Entry;
-import nat.components.Position;
+import nat.components.*;
 using kiss_flixel.CameraTools;
-import nat.components.Positions;
 import nat.systems.PlaygroundSystem;
 import flixel.util.FlxSort;
 

projects/nat-flixel-desktop-playground/source/EntrySpriteSystem.kiss

@@ -32,7 +32,8 @@
                 (controller.DeSelectEntry e)
             }))
 
-(method &override :Void clear []
+(method &override :Void clear [:Color color]
+    (set playState.bgColor (FlxColor.fromRGBFloat color.r color.g color.b color.a))
     (playState.debugLayer.clear)
     (sprites.clear)
     (playState.entryGroup.kill)