BT composite that executes tasks from the beginning each tick until first [code]SUCCESS[/code]. BT composite that executes child tasks from first to last until any child returns [code]SUCCESS[/code]. BTDynamicSelector will execute tasks from the beginning each tick, reevaluating their statuses. Returns [code]RUNNING[/code] if a task returns [code]RUNNING[/code], and remembers last [code]RUNNING[/code] child. In contrast to normal selector, on the next execution tick it will reexecute preceeding tasks and reevaluate their return statuses. If any of the preceeding tasks does not return [code]FAILURE[/code], it will cancel execution of the remembered [code]RUNNING[/code] task. Returns [code]FAILURE[/code] if all tasks return [code]FAILURE[/code]. Returns [code]SUCCESS[/code] if any task returns [code]SUCCESS[/code].