From a7c9b0a9dfe5051a60763e123df47f4c16052e32 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sun, 16 Jun 2024 18:24:37 +0200
Subject: fix(ecs): create new archetype when archetype lookup entry is empty

---
 ecs/src/component/storage.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'ecs/src/component')

diff --git a/ecs/src/component/storage.rs b/ecs/src/component/storage.rs
index f174ea9..237dd73 100644
--- a/ecs/src/component/storage.rs
+++ b/ecs/src/component/storage.rs
@@ -77,7 +77,7 @@ impl ComponentStorage
                 .join(", ")
         );
 
-        let archetypes_indices = self
+        let archetype_indices = self
             .archetype_lookup
             .entry(ArchetypeComponentsHash::new(
                 components
@@ -91,10 +91,16 @@ impl ComponentStorage
                 vec![self.archetypes.len() - 1]
             });
 
+        if archetype_indices.is_empty() {
+            self.archetypes.push(Archetype::default());
+
+            archetype_indices.push(self.archetypes.len() - 1);
+        }
+
         let archetype = self
             .archetypes
             .get_mut(
-                archetypes_indices
+                archetype_indices
                     .first()
                     .copied()
                     .expect("No archetype index found"),
-- 
cgit v1.2.3-18-g5258