I have four buttons (which is actaully a sprite) in a row, all of the same instance. Each button has two animation frames: frame 0 for unclicked state and frame 1 for clicked state. My requirement is that when a user clicks on a button, its frame should change to 1, and all other buttons should change their frames to 0. In other words, only the latest clicked button should have frame 1, while the rest should have frame 0. How can I achieve this?