From c65f559b3985fcb1cdfe3a290d688a89f3df18a9 Mon Sep 17 00:00:00 2001
From: Aaron Kimbrell <aronwk.aaron@gmail.com>
Date: Thu, 1 Oct 2026 09:01:25 -0500
Subject: [PATCH] feat(entity): the client's physics system component (47)

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

diff --git a/dGame/Entity.cpp b/dGame/Entity.cpp
index 0ce457bda..358701343 100644
--- a/dGame/Entity.cpp
+++ b/dGame/Entity.cpp
@@ -95,6 +95,7 @@
 #include "GateRushComponent.h"
 #include "FactionTriggerComponent.h"
 #include "RocketLandingComponent.h"
+#include "PhysicsSystemComponent.h"
 #include "VehiclePhysicsComponent.h"
 #include "ProjectilePhysicsComponent.h"
 #include "GenericActivatorComponent.h"
@@ -999,6 +1000,12 @@ void Entity::Initialize() {
 			if (id > -1) AddComponent<VehiclePhysicsComponent>(id);
 			break;
 		}
+		case eReplicaComponentType::PHYSICS_SYSTEM: {
+			// The client's physics system component: the client makes it from the registry
+			const auto id = compRegistryTable->GetByIDAndType(m_TemplateID, eReplicaComponentType::PHYSICS_SYSTEM, -1);
+			if (id > -1) AddComponent<PhysicsSystemComponent>(id);
+			break;
+		}
 		case eReplicaComponentType::ROCKET_LANDING: {
 			// LWORocketAnimationControlComponent: the client makes it from the registry
 			const auto id = compRegistryTable->GetByIDAndType(m_TemplateID, eReplicaComponentType::ROCKET_LANDING, -1);
diff --git a/dGame/dComponents/PhysicsSystemComponent.h b/dGame/dComponents/PhysicsSystemComponent.h
new file mode 100644
index 000000000..cf1b6c2ab
--- /dev/null
+++ b/dGame/dComponents/PhysicsSystemComponent.h
@@ -0,0 +1,17 @@
+#ifndef PHYSICSSYSTEMCOMPONENT_H
+#define PHYSICSSYSTEMCOMPONENT_H
+
+#include "Component.h"
+#include "eReplicaComponentType.h"
+
+/**
+ * Physics system, as the client's physics system component makes it from the registry. Nothing of it is sent or done on the server yet.
+ */
+class PhysicsSystemComponent final : public Component {
+public:
+	static constexpr eReplicaComponentType ComponentType = eReplicaComponentType::PHYSICS_SYSTEM;
+
+	PhysicsSystemComponent(Entity* parent, const int32_t componentID) : Component(parent, componentID) {}
+};
+
+#endif // PHYSICSSYSTEMCOMPONENT_H