1 files changed, 14 insertions, 13 deletions

diff --git a/tools/search.js b/tools/search.js
index eafb2bf..4901293 100644
--- a/tools/search.js
+++ b/tools/search.js
@@ -12,13 +12,14 @@ function getComp(index){
   return (element,needle) => (element[index] - needle[index] || element[1-index] - needle[1-index])
 }
 
-function Search(){ // searchBlock should be a Space object.
-  this.tiles = {};     // Object which stores Spaces.
-  this.sort = [[],[]]; // Vertically/horizontally sorted list of indexed tiles for fast addition, deletion, and searching
-  this.spaces = []; // if spaces[i] is detected,
-  this.calls = []; // calls[i](coords, send, searchspace)
-
-  this.add = function(loc, space, send){ // loc should be [tileY,tileX] and space Space.
+class Search {
+  constructor(){
+    this.tiles = {};     // Object which stores Spaces.
+    this.sort = [[],[]]; // Vertically/horizontally sorted list of indexed tiles for fast addition, deletion, and searching
+    this.spaces = []; // if spaces[i] is detected,
+    this.calls = []; // calls[i](coords, send, searchspace)
+  }
+  add(loc, space, send){ // loc should be [tileY,tileX] and space Space.
     this.tiles[loc] = space;
     let inds = Array(2); // Records horizontal and vertical indices for insertion. Then actually inserts the item.
     [0,1].forEach( ind => { // ind chooses y-or-x
@@ -38,7 +39,7 @@ function Search(){ // searchBlock should be a Space object.
     }
   }
   
-  this.block = function(loc,inds,exclude){
+  block(loc,inds,exclude){
     if (! exclude) exclude = new Set(); // If not given, replace.
     let adjacent = new Set([loc]);
     exclude.add(loc);
@@ -62,7 +63,7 @@ function Search(){ // searchBlock should be a Space object.
     return adjacent;
   }
 
-  this.del = function(loc){
+  del(loc){
     delete this.tiles[loc];
     [0, 1].forEach( ind => {
       let theind = bs(this.sort[ind], loc, getComp(ind));
@@ -71,13 +72,13 @@ function Search(){ // searchBlock should be a Space object.
     })
   }
 
-  this.has = function(loc){
+  has(loc){
     if (bs(this.sort[0], loc, getComp(0)) < 0) return false; // Could use ind = 1 just as well, but doesn't really matter
     // bs returns negative if not found.
     else return true;
   }
 
-  this.update = function(space){ // Must be a space w/ valid loc; allows overlay of some arbitrary text (in the space) mostly for recording updates from the server without directly cataloguing them
+  update(space){ // Must be a space w/ valid loc; allows overlay of some arbitrary text (in the space) mostly for recording updates from the server without directly cataloguing them
     if (space.loc.length === 0) throw "Update space must have valid loc";
     let tiles = raster(space); // Returns a this.tiles-style binding: {'2,-3':Space object}
     for (let tile in tiles) {
@@ -87,12 +88,12 @@ function Search(){ // searchBlock should be a Space object.
     }
   }
 
-  this.match = function(space, call){
+  match(space, call){
     this.spaces.push(space);
     this.calls.push(call);
   }
 
-  this.unmatch = function(space){
+  unmatch(space){
     let ind = this.spaces.indexOf(space);
     this.spaces.splice(ind, 1);
     this.calls.splice(ind, 1);