From e4ca1695f0fc77845619d854674b19569ddc8b63 Mon Sep 17 00:00:00 2001
From: Manuel Martin <manmartin@mozilla.com>
Date: Fri, 15 Sep 2023 13:50:29 +0200
Subject: [PATCH] Enable waypoint hash navigation

---
 src/bit-systems/waypoint.ts | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/bit-systems/waypoint.ts b/src/bit-systems/waypoint.ts
index 4896a2fdcd..f86f588b29 100644
--- a/src/bit-systems/waypoint.ts
+++ b/src/bit-systems/waypoint.ts
@@ -91,7 +91,10 @@ function* trySpawnIntoOccupiable(world: HubsWorld, characterController: Characte
     if (!spawnPoints.length) return false;
 
     const waypoint = spawnPoints[Math.floor(Math.random() * spawnPoints.length)];
-    if (yield* tryOccupyAndSpawn(world, characterController, waypoint)) return true;
+    if (yield* tryOccupyAndSpawn(world, characterController, waypoint)) {
+      initialSpawnHappened = true;
+      return true;
+    }
   }
 
   return false;
@@ -104,6 +107,7 @@ function* moveToSpawnPointJob(world: HubsWorld, characterController: CharacterCo
   if (spawnPoints.length) {
     const waypoint = spawnPoints[Math.floor(Math.random() * spawnPoints.length)];
     moveToWaypoint(world, waypoint, characterController, true);
+    initialSpawnHappened = true;
   } else {
     console.warn("Could not find any available spawn points, spawning at the origin.");
     characterController.enqueueWaypointTravelTo(new Matrix4().identity(), true, {
@@ -112,6 +116,7 @@ function* moveToSpawnPointJob(world: HubsWorld, characterController: CharacterCo
       snapToNavMesh: true,
       willMaintainInitialOrientation: false
     });
+    initialSpawnHappened = true;
   }
 }
 
@@ -147,6 +152,8 @@ const hoveredRightWaypointQuery = defineQuery([Waypoint, HoveredRemoteRight]);
 const exitedOwnedQuery = exitQuery(defineQuery([Owned]));
 
 let preview: Object3D | null;
+let initialSpawnHappened: boolean = false;
+let previousWaypointHash: string | null = null;
 export function waypointSystem(
   world: HubsWorld,
   characterController: CharacterControllerSystem,
@@ -164,6 +171,16 @@ export function waypointSystem(
       }
     }
 
+    const hashUpdated = window.location.hash !== "" && previousWaypointHash !== window.location.hash;
+    if (hashUpdated && initialSpawnHappened) {
+      const waypointName = window.location.hash.replace("#", "");
+      if (eid) {
+        moveToWaypoint(world, eid, characterController, previousWaypointHash === null);
+        window.history.replaceState(null, "", window.location.href.split("#")[0]); // Reset so you can re-activate the same waypoint
+      }
+      previousWaypointHash = window.location.hash;
+    }
+
     if (hasComponent(world, Interacted, eid)) {
       if (hasComponent(world, NetworkedWaypoint, eid)) {
         if (NetworkedWaypoint.occupied[eid]) {