From e698975a79225309ca61a153c2a387893adb1ad9 Mon Sep 17 00:00:00 2001
From: Rodolfo Barcelli Jo <rodolfo.barcelli@gmail.com>
Date: Mon, 19 Jan 2026 13:53:21 +0800
Subject: [PATCH] Update: Update delete component function

---
 becs2.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/becs2.h b/becs2.h
index 4a81425..cf142b4 100644
--- a/becs2.h
+++ b/becs2.h
@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 #include <stddef.h>
+#include <string.h>
 
 #define MAX_ENTITIES 100
 #define NUM_COMPONENTS 2
@@ -142,9 +143,19 @@ int32_t BECS_RemoveComponent(BECS_ECS *ecs, uint32_t entityID, uint32_t componen
         return 0;
     }
 
-    uint32_t lastEntityAdded = componentArray->sparseArray[componentArray->lastEntityAdded];
+    uint32_t lastEntityAddedIndex = componentArray->sparseArray[componentArray->lastEntityAdded];
     uint32_t deletedCompIndex = componentArray->sparseArray[entityID];
 
+    uintptr_t denseArray = (uintptr_t)componentArray->denseArray;
+
+    uintptr_t lastEntityAdded = denseArray + (lastEntityAddedIndex * componentArray->unitSize);
+    uintptr_t deletedComp = denseArray + (lastEntityAddedIndex * componentArray->unitSize);
+
+    memcpy((void *)deletedComp, (void*)lastEntityAdded, componentArray->unitSize);
+
+    componentArray->denseArraylength--;
+    componentArray->sparseArray[entityID] = lastEntityAddedIndex;
+
     return 0;
 }