diff --git a/src/Dodge/WindowSize.hs b/src/Dodge/WindowSize.hs
new file mode 100644
index 000000000..4ff3bf98f
--- /dev/null
+++ b/src/Dodge/WindowSize.hs
@@ -0,0 +1,10 @@
+module Dodge.WindowSize where
+
+import Dodge.Data.Config
+
+getWindowSize :: Configuration -> (Int, Int)
+getWindowSize cfig = (x `div` divRes,y `div` divRes)
+  where
+    x = round $ _windowX cfig
+    y = round $ _windowY cfig
+    divRes = resFactorNum $ _graphics_resolution_factor cfig