BT condition that checks a trigger (a boolean variable). BTCheckTrigger verifies whether the [member variable] is set to [code]true[/code]. If it is, the task changes it to [code]false[/code] and returns [code]SUCCESS[/code]. Otherwise, it returns [code]FAILURE[/code]. A boolean variable on the blackboard that is used as a trigger. When it is set to [code]true[/code], BTCheckTrigger will flip it to [code]false[/code] and return [code]SUCCESS[/code]. Otherwise, it will return [code]FAILURE[/code].