Allow script canvas users to send RPCs via entityId

Gems/Multiplayer/Code/Source/AutoGen/AutoComponent_Common.jinja

@@ -175,7 +175,7 @@ void Handle{{ PropertyName }}(AzNetworking::IConnection* invokingConnection, {{
 //! {{ PropertyName }} Handler
 //! {{ Property.attrib['Description'] }}
 //! HandleOn {{ HandleOn }}
-virtual void Handle{{ PropertyName }}(AzNetworking::IConnection* invokingConnection, {{ ', '.join(paramDefines) }}) = 0;
+virtual void Handle{{ PropertyName }}([[maybe_unused]] AzNetworking::IConnection* invokingConnection, [[maybe_unused]] {{ ', [[maybe_unused]] '.join(paramDefines) }}) {}
 {% endif %}
 {% endmacro %}
 {#

Gems/Multiplayer/Code/Source/AutoGen/AutoComponent_Source.jinja

@@ -368,6 +368,31 @@ void {{ ClassName }}::Signal{{ UpperFirst(Property.attrib['Name']) }}({{ ', '.jo
             ->Method("{{ UpperFirst(Property.attrib['Name']) }}", [](const {{ ClassName }}* self, {{ ', '.join(paramDefines) }}) {
                         self->m_controller->{{ UpperFirst(Property.attrib['Name']) }}({{ ', '.join(paramNames) }});
                     })
+            ->Method("{{ UpperFirst(Property.attrib['Name']) }}ByEntity", [](AZ::EntityId id, {{ ', '.join(paramDefines) }}) {
+
+                        AZ::Entity* entity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(id);
+                        if (!entity)
+                        {
+                            AZ_Warning("Network Property", false, "{{ ClassName }} Get{{ UpperFirst(Property.attrib['Name']) }} failed. The entity with id %s doesn't exist, please provide a valid entity id.", id.ToString().c_str())
+                            return;
+                        }
+
+                        {{ ClassName }}* networkComponent = entity->FindComponent<{{ ClassName }}>();
+                        if (!networkComponent)
+                        {
+                            AZ_Warning("Network Property", false, "{{ ClassName }} Get{{ UpperFirst(Property.attrib['Name']) }} failed. Entity '%s' (id: %s) is missing {{ ClassName }}, be sure to add {{ ClassName }} to this entity.", entity->GetName().c_str(), id.ToString().c_str())
+                            return;
+                        }
+
+                        {{ ClassName }}Controller* controller = static_cast<{{ ClassName }}Controller*>(networkComponent->GetController());
+                        if (!controller)
+                        {
+                            AZ_Warning("Network Property", false, "{{ ClassName }} Get{{ UpperFirst(Property.attrib['Name']) }} method failed. Entity '%s' (id: %s) {{ ClassName }} is missing the network controller. This RemoteProcedure can only be invoked from {{InvokeFrom}} network entities, because this entity doesn't have a controller, it must not be a {{InvokeFrom}} entity. Please check your network context before attempting to call {{ UpperFirst(Property.attrib['Name']) }}.", entity->GetName().c_str(), id.ToString().c_str())
+                            return;
+                        }
+
+                        controller->{{ UpperFirst(Property.attrib['Name']) }}({{ ', '.join(paramNames) }});
+                    })
 {%    endif %}
 {% endcall %}
 {% endmacro %}