class_name TestBSystem extends System func deps(): return { Runs.After: [TestASystem], # Runs after SystemA Runs.Before: [TestCSystem], # This system rubs before SystemC } func query(): return ECS.world.query.with_all([C_TestB]) func process(entities: Array[Entity], components: Array, delta: float): for entity in entities: var a = entity.get_component(C_TestB) a.value += 1 print("TestBSystem: ", a.value)