From ecd45c98374fd9bdef33c7a0caeecc2bab594c04 Mon Sep 17 00:00:00 2001
From: Holden Rohrer <holden.rohrer@gmail.com>
Date: Tue, 7 Jan 2020 10:03:31 -0500
Subject: vec.equals comparator

---
 examples/jarvis.js |  6 +-----
 utils/vec.js       | 16 +++++++++++-----
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/examples/jarvis.js b/examples/jarvis.js
index 49c425a..2294d7a 100644
--- a/examples/jarvis.js
+++ b/examples/jarvis.js
@@ -12,17 +12,13 @@ const ri = require('../utils/rectintersect');
 
 var main = new Socket();
 
-function equals(arg1,arg2){ // Just takes the specific case argument of each being an int pair
-  return arg1[0] == arg2[0] && arg1[1] == arg2[1]
-}
-
 main.on('open', ()=>{ // Tries to identify itself with a cursor movement
   console.log('socket opened');
   let coords = [Math.floor(Math.random()*100000+16),Math.floor(Math.random()*100000+16)];
   main.cursor(coords);
   main.on('cursor',detect);
   function detect(pos, send){
-    if (equals(pos[0],coords)){
+    if (vec.equals(pos[0],coords)){
       main.off('cursor', detect);
       identity(send);
     }
diff --git a/utils/vec.js b/utils/vec.js
index 3996fc2..d595989 100644
--- a/utils/vec.js
+++ b/utils/vec.js
@@ -6,23 +6,29 @@ exports.mult = function(vec, scal){
   return vec;
 }
 
-function elem(orig, vec, op){
+exports.elem = function(orig, vec, op){
   let comb = [];
   for (let i = 0; i < orig.length; i++){
     comb.push(op(vec[i],orig[i]));
   }
   return comb;
 }
-exports.elem = elem;
+
+exports.equals = function(orig, vec){
+  for (let i = 0; i < orig.length; i++){
+    if (orig[i] != vec[i]) return false;
+  }
+  return true;
+}
 
 exports.add = function(orig, vec){
-  return elem(orig, vec, (a,b) => a+b);
+  return exports.elem(orig, vec, (a,b) => a+b);
 }
 exports.sub = function(orig, vec){
-  return elem(orig, vec, (a,b) => a-b);
+  return exports.elem(orig, vec, (a,b) => a-b);
 }
 exports.dot = function(orig,vec){
-  return elem(orig, vec, (a,b) => a*b);
+  return exports.elem(orig, vec, (a,b) => a*b);
 }
 exports.tileToChar = function(orig){
   return exports.dot(orig, [8,16]);
-- 
cgit