refactor set method to return true or false

in previous implementation, set method was returning either the value of @height or nil (as evaluated by final if statement).
returning boolean to reflect either successful or unsuccessful assignment seems to match return patterns in other window methods (e.g. #add, #remove).

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/testcard.rb b/tests/testcard.rb
index 1ab2267..4954d20 100644
--- a/tests/testcard.rb
+++ b/tests/testcard.rb
@@ -1,5 +1,6 @@
 require 'ruby2d'
 
+binding.pry
 set width: 700, height: 500, title: "Ruby 2D – Testcard"
 
 # Read window attributes