From e886bb1f4d980aa0296c9df1c488c72d21acbedf Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Mon, 9 Jan 2023 14:47:38 +0100
Subject: [PATCH] Eww mutable state

---
 scene/10-lobby.pr | 9 +++------
 src/engine.ts     | 4 ++--
 src/index.ts      | 2 +-
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/scene/10-lobby.pr b/scene/10-lobby.pr
index a923d8d..95311d1 100644
--- a/scene/10-lobby.pr
+++ b/scene/10-lobby.pr
@@ -36,12 +36,9 @@
 
   <Exit "ball" "other">
   <sprite "ball"
-   <move <v 0.0 1.5 2.0>
-    <scale <v 1.0 1.0 1.0>
-     <color 0.0 1.0 0.0
-      <floor
-       <touchable
-        <sphere>>>>>>>
+   <move <v 0.0 1.5 3.0>
+    <color 0.0 1.0 0.0
+     <touchable <sphere>>>>>
 
   <sprite "plans"
    <texture ["plans/signal-2022-12-27-125451_002.jpeg"]
diff --git a/src/engine.ts b/src/engine.ts
index 57c4ef8..1073d87 100644
--- a/src/engine.ts
+++ b/src/engine.ts
@@ -122,7 +122,7 @@ export class RunningEngine {
             this.camera = this.xr.baseExperience.camera;
         } else {
             this.camera = new FreeCamera("camera",
-                                         this.options.initialPos,
+                                         this.options.initialPos.clone(),
                                          this.scene);
             this.camera.rotation = this.options.initialRotation;
             this.camera.minZ = 0.1;
@@ -256,7 +256,7 @@ export class RunningEngine {
     xrEnable() {
         if (!this.xrSessionManager) return;
         this.xr.baseExperience.enterXRAsync('immersive-vr', 'local').then(() => {
-            this.xr.baseExperience.camera.position = this.options.initialPos;
+            this.xr.baseExperience.camera.position = this.options.initialPos.clone();
             this.xr.baseExperience.camera.rotation = this.options.initialRotation;
             this.xr.baseExperience.sessionManager.session.onselect = () => this.xrTeleport();
         });
diff --git a/src/index.ts b/src/index.ts
index c908547..b395708 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -66,7 +66,7 @@ async function enterScene(
 
     const camera = runningEngine.camera;
     camera.applyGravity = false;
-    camera.position = runningEngine.options.initialPos;
+    camera.position = runningEngine.options.initialPos.clone();
 
     let lastTouchTime = 0;
     let lastTouchSpriteName = "";