small optimization

common/game_basic.js

@@ -1,7 +1,7 @@
 import Player from "./player.js";
 
 class GameBasic {
-    constructor() {
+    constructor(width = 7500, height = 7500) {
         let player = new Player(false, true);
         let entities = [player];
 
@@ -12,21 +12,26 @@ class GameBasic {
         this.player = player;
         this.entities = entities;
 
-        this.width = this.height = 7500;
+        this.width = width;
+        this.height = height;
+
+        this.intCount = 8;
     }
-    main() {
+    main(j) {
         let { entities } = this;
         let that = this;
 
-        for (let ent of entities) {
+        for (let i = j; i < entities.length; i += this.intCount) {
-            (async function() {
+            let ent = entities[i];
             ent.handleTick(that)
-            })();
         }
     }
     init() {
         let that = this;
-        setInterval(function () { that.main() }, 1000 / 60);
+
+        for (let i = 0; i < that.intCount; i++) {
+            setInterval(function () { that.main(i) }, 1000 / 60);
+        }
     }
 }