Fix compiling Urho3D without physics. Note that the editor would still be unable to run without physics support compiled in. Closes #1216.

Source/Urho3D/AngelScript/ScriptInstance.h

@@ -170,7 +170,7 @@ private:
     void HandleSceneUpdate(StringHash eventType, VariantMap& eventData);
     /// Handle scene post-update event.
     void HandleScenePostUpdate(StringHash eventType, VariantMap& eventData);
-#ifdef URHO3D_PHYSICS
+#if defined(URHO3D_PHYSICS) || defined(URHO3D_URHO2D)
     /// Handle physics pre-step event.
     void HandlePhysicsPreStep(StringHash eventType, VariantMap& eventData);
     /// Handle physics post-step event.

Source/Urho3D/LuaScript/LuaScriptInstance.h

@@ -156,7 +156,7 @@ private:
     void HandleUpdate(StringHash eventType, VariantMap& eventData);
     /// Handle the logic post update event.
     void HandlePostUpdate(StringHash eventType, VariantMap& eventData);
-#ifdef URHO3D_PHYSICS
+#if defined(URHO3D_PHYSICS) || defined(URHO3D_URHO2D)
     /// Handle the physics update event.
     void HandleFixedUpdate(StringHash eventType, VariantMap& eventData);
     /// Handle the physics post update event.

Source/Urho3D/Scene/LogicComponent.h

@@ -89,7 +89,7 @@ private:
     void HandleSceneUpdate(StringHash eventType, VariantMap& eventData);
     /// Handle scene post-update event.
     void HandleScenePostUpdate(StringHash eventType, VariantMap& eventData);
-#ifdef URHO3D_PHYSICS
+#if defined(URHO3D_PHYSICS) || defined(URHO3D_URHO2D)
     /// Handle physics pre-step event.
     void HandlePhysicsPreStep(StringHash eventType, VariantMap& eventData);
     /// Handle physics post-step event.