1 files changed, 7 insertions, 0 deletions
diff --git a/src/utils.lua b/src/utils.lua
index b2186cc..29c3024 100644
--- a/src/utils.lua
+++ b/src/utils.lua
@@ -92,3 +92,10 @@ function rotate_vec(x, y, r)
   return math.cos(angle) * len, math.sin(angle) * len
 end
 
+function table.shallow_copy(t)
+  local t2 = {}
+  for k,v in pairs(t) do
+    t2[k] = v
+  end
+  return t2
+end