From 57d6b3e077f55b63ec98a5fefdbdae50b5335e09 Mon Sep 17 00:00:00 2001
From: Holden Rohrer <hr@hrhr.dev>
Date: Sun, 9 Feb 2020 16:07:56 -0500
Subject: externalized charToTile component of raster

---
 utils/vec.js | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'utils/vec.js')

diff --git a/utils/vec.js b/utils/vec.js
index d595989..57104df 100644
--- a/utils/vec.js
+++ b/utils/vec.js
@@ -33,6 +33,9 @@ exports.dot = function(orig,vec){
 exports.tileToChar = function(orig){
   return exports.dot(orig, [8,16]);
 }
+exports.charToTile = function(orig){
+  return exports.elem(exports.dot(orig, [1/8, 1/16]), [], a => Math.floor(a));
+}
 exports.norm = function(orig){
   let sum = orig.reduce( (acc, cur) => acc+cur );
   return exports.dot(orig, 1/sum);
-- 
cgit