Better null bgPos error message

deepnight · deepnight · commit 80ff53e9be9f · 2021-01-27T10:19:13.000+01:00
diff --git a/src/electron.renderer/data/Level.hx b/src/electron.renderer/data/Level.hx
@@ -177,7 +177,7 @@ class Level {
 		var sy = 1.0;
 		switch bgPos {
 			case null:
-				throw "Unexpected null here";
+				throw "bgPos should not be null";
 
 			case Unscaled:
 
