From a8b6138d4df97d2fae671bc1c9f6cfb4b89fc0f1 Mon Sep 17 00:00:00 2001
From: Apua Juan <apua.juan@sifive.com>
Date: Sun, 7 Jan 2024 21:13:35 +0800
Subject: [PATCH] Fix shape algorithm

---
 Assets/Scenes/SampleScene.unity | 4 ++--
 Assets/Universe.cs              | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Assets/Scenes/SampleScene.unity b/Assets/Scenes/SampleScene.unity
index bb8f4b3..8c22e79 100644
--- a/Assets/Scenes/SampleScene.unity
+++ b/Assets/Scenes/SampleScene.unity
@@ -158,7 +158,7 @@ MonoBehaviour:
   DegreePerSecond: 36
   RotationAxis: {x: 60, y: 80, z: 0}
   Amount: 128
-  Shape: 1
+  Shape: 0
 --- !u!4 &77179604
 Transform:
   m_ObjectHideFlags: 0
@@ -450,7 +450,7 @@ Transform:
   m_GameObject: {fileID: 963194225}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: -20}
+  m_LocalPosition: {x: 0, y: 0, z: -25}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
diff --git a/Assets/Universe.cs b/Assets/Universe.cs
index aaf27d9..e046133 100644
--- a/Assets/Universe.cs
+++ b/Assets/Universe.cs
@@ -300,9 +300,9 @@ public static Vector3 Tetrahedron()
         };
         var p = Random.value;
         return new(
-            Radius * 2/3 * (v.X + p * (w.X - v.X)),
-            Radius * 2/3 * (v.Y + p * (w.Y - v.Y)),
-            Radius * 2/3 * (v.Z + p * (w.Z - v.Z))
+            Radius / 2 * (v.X + p * (w.X - v.X)),
+            Radius / 2 * (v.Y + p * (w.Y - v.Y)),
+            Radius / 2 * (v.Z + p * (w.Z - v.Z))
         );
     }