I would like to see how to detect when touch event has entered the zone of an entity? say within 20 pixels of its image border.
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I would like to see how to detect when touch event has entered the zone of an entity? say within 20 pixels of its image border.
One solution is to include a transparent border around the image. The touch still triggers when it’s on the transparent areas. So, for example:
A touch on the transparent area around the ball will fire the touch event listener. For a circle, you can even check the distance from the touch to the center of the circle, and ignore any that are “too far” from the center, giving a circular response zone. If your image isn’t circular, you may need more complex validation logic, but at least you’ll get the touch event.