1 files changed, 17 insertions, 0 deletions
diff --git a/engine/src/renderer/object.rs b/engine/src/renderer/object.rs
index eba5bdf..8e2254f 100644
--- a/engine/src/renderer/object.rs
+++ b/engine/src/renderer/object.rs
@@ -1,5 +1,6 @@
 use std::collections::HashMap;
 use std::collections::hash_map::Entry as HashMapEntry;
+use std::sync::atomic::{AtomicU64, Ordering};
 
 use ecs::Component;
 
@@ -12,8 +13,24 @@ pub type RawValue = u32;
 pub enum Id
 {
     Asset(AssetId),
+    Sequential(SequentialId),
 }
 
+impl Id
+{
+    pub fn new_sequential() -> Self
+    {
+        static NEXT_SEQUENTIAL_ID: AtomicU64 = AtomicU64::new(0);
+
+        Self::Sequential(SequentialId(
+            NEXT_SEQUENTIAL_ID.fetch_add(1, Ordering::Relaxed),
+        ))
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct SequentialId(u64);
+
 /// Renderer object store.
 #[derive(Debug, Default, Component)]
 pub struct Store