integrated array normalizer into vec

1 files changed, 4 insertions, 0 deletions

diff --git a/utils/vec.js b/utils/vec.js
index f4a625c..3996fc2 100644
--- a/utils/vec.js
+++ b/utils/vec.js
@@ -27,3 +27,7 @@ exports.dot = function(orig,vec){
 exports.tileToChar = function(orig){
   return exports.dot(orig, [8,16]);
 }
+exports.norm = function(orig){
+  let sum = orig.reduce( (acc, cur) => acc+cur );
+  return exports.dot(orig, 1/sum);
+}