add basic ah physicsworld

destrum/src/Physics/PhysicsSceneBridge.cpp

@@ -0,0 +1,35 @@
+#include <destrum/Physics/PhysicsSceneBridge.h>
+
+#include <destrum/Components/Physics/Rigidbody.h>
+#include <destrum/ObjectModel/GameObject.h>
+
+PhysicsSceneBridge::PhysicsSceneBridge(std::unique_ptr<PhysicsWorld> world)
+    : m_World(std::move(world)) {
+}
+
+void PhysicsSceneBridge::RegisterGameObject(GameObject& object) {
+    if (auto* rb = object.GetComponent<Rigidbody>()) {
+        if (!rb->HasPhysicsBody()) {
+            m_World->RegisterRigidbody(*rb);
+        }
+    }
+}
+
+void PhysicsSceneBridge::UnregisterGameObject(GameObject& object) {
+    if (auto* rb = object.GetComponent<Rigidbody>()) {
+        if (rb->HasPhysicsBody()) {
+            m_World->UnregisterRigidbody(*rb);
+        }
+    }
+}
+
+void PhysicsSceneBridge::FixedUpdate(float fixedDt) {
+    if (auto* simple = dynamic_cast<SimplePhysicsWorld*>(m_World.get())) {
+        simple->SyncKinematicBodiesToPhysics();
+        simple->Step(fixedDt);
+        simple->SyncDynamicBodiesToTransforms();
+        return;
+    }
+
+    m_World->Step(fixedDt);
+}