From 320a20e69545012e29ef5aa81bb84e30de33d41f Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Mon, 6 Jan 2020 00:29:18 -0600
Subject: [PATCH] feat: ticking promises in core entity

---
 packages/entity/entity.synchronized.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packages/entity/entity.synchronized.js b/packages/entity/entity.synchronized.js
index 3d1b2cc..9da79b1 100644
--- a/packages/entity/entity.synchronized.js
+++ b/packages/entity/entity.synchronized.js
@@ -96,6 +96,7 @@ export class Entity extends decorate(Resource) {
     this._hooks = {};
     this._hydrationPromise = undefined;
     this._json = Entity.jsonWithDefaults(json);
+    this._tickingPromisesTickers = [];
     this._traits = {};
     this._traitsFlat = [];
     this._traitTickers = [];
@@ -130,6 +131,17 @@ export class Entity extends decorate(Resource) {
     }
   }
 
+  addTickingPromise(tickingPromise) {
+    const ticker = tickingPromise.tick.bind(tickingPromise);
+    this._tickingPromisesTickers.push(ticker);
+    return tickingPromise.then(() => {
+      const index = this._tickingPromisesTickers.indexOf(ticker);
+      if (-1 !== index) {
+        this._tickingPromisesTickers.splice(index, 1);
+      }
+    })
+  }
+
   addTrait(type, json = {}) {
     if (this.is(type)) {
       debug(`Tried to add trait "${type}" when it already exists!`);
@@ -389,6 +401,9 @@ export class Entity extends decorate(Resource) {
     for (let i = 0; i < this._traitTickers.length; i++) {
       this._traitTickers[i](elapsed);
     }
+    for (let i = 0; i < this._tickingPromisesTickers.length; i++) {
+      this._tickingPromisesTickers[i](elapsed);
+    }
   }
 
   toNetwork(informed) {