From b4c25a251209a83549b3b2fb967395f23c3ba668 Mon Sep 17 00:00:00 2001
From: Aaron Kimbrell <aronwk.aaron@gmail.com>
Date: Thu, 1 Oct 2026 07:01:24 -0500
Subject: [PATCH] feat(entity): the client's model builder component (38)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 dGame/Entity.cpp                          |  7 +++++++
 dGame/dComponents/ModelBuilderComponent.h | 17 +++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 dGame/dComponents/ModelBuilderComponent.h

diff --git a/dGame/Entity.cpp b/dGame/Entity.cpp
index 9b01bd1bb..56961c51b 100644
--- a/dGame/Entity.cpp
+++ b/dGame/Entity.cpp
@@ -90,6 +90,7 @@
 #include "CollectibleComponent.h"
 #include "ItemComponent.h"
 #include "MinifigComponent.h"
+#include "ModelBuilderComponent.h"
 #include "ArcadeComponent.h"
 #include "ModuleComponent.h"
 #include "BlueprintComponent.h"
@@ -1015,6 +1016,12 @@ void Entity::Initialize() {
 			if (id > -1) AddComponent<ArcadeComponent>(id);
 			break;
 		}
+		case eReplicaComponentType::MODEL_BUILDER: {
+			// LWOModelBuilderComponent: the client makes it from the registry
+			const auto id = compRegistryTable->GetByIDAndType(m_TemplateID, eReplicaComponentType::MODEL_BUILDER, -1);
+			if (id > -1) AddComponent<ModelBuilderComponent>(id);
+			break;
+		}
 		default:
 			break;
 		}
diff --git a/dGame/dComponents/ModelBuilderComponent.h b/dGame/dComponents/ModelBuilderComponent.h
new file mode 100644
index 000000000..12dda2ce0
--- /dev/null
+++ b/dGame/dComponents/ModelBuilderComponent.h
@@ -0,0 +1,17 @@
+#ifndef MODELBUILDERCOMPONENT_H
+#define MODELBUILDERCOMPONENT_H
+
+#include "Component.h"
+#include "eReplicaComponentType.h"
+
+/**
+ * Model builder, as the client's LWOModelBuilderComponent makes it from the registry. Nothing of it is sent or done on the server yet.
+ */
+class ModelBuilderComponent final : public Component {
+public:
+	static constexpr eReplicaComponentType ComponentType = eReplicaComponentType::MODEL_BUILDER;
+
+	ModelBuilderComponent(Entity* parent, const int32_t componentID) : Component(parent, componentID) {}
+};
+
+#endif // MODELBUILDERCOMPONENT_H