Creating a sequence of comets (V-shaped pairs, firing center to outside)

video1.0<iframe src="https://www.loom.com/embed/cb3a237f6cd548899667dafc6a2bc392" frameborder="0" width="1920" height="1440" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>14401920Loomhttps://www.loom.com14401920https://cdn.loom.com/sessions/thumbnails/cb3a237f6cd548899667dafc6a2bc392-00001.gif157.51Creating a sequence of comets (V-shaped pairs, firing center to outside)