Currently, we can just tap on the bird and the hunter will hit it. This is not very competitive; it would be harder to hit the bird if we needed to touch the screen closer to the hunter. We're going to limit the distance from the hunter where you can tap to aim.
At the end of the previous chapter, we added a bunch of images that we're going to use. There is one special image called
power_meter.png, which we will use to show the aiming range.
power_meter.png image represents an arrow colored in white. Don't worry if you can't see it in the finder thumbnails or in preview, as you just can't see white ...