Add a new rule called “Shine!” and give it the following text

There exist 120 shine sprites which have been scattered across the island. Shine sprites are tracked in a GNDT column called “Shine Sprites”.  Each tourist has a non-negative number of shine sprites and starts with zero. The tour guide begins with 120 shine sprites. The total number of shine sprites owned by all tourists and the tour guide must always be 120. No action can taken which causes the sum to be different from 120. When a tourist goes idle, their shine sprite total is added to the tour guide’s shine sprite total and their shine sprites are set to zero.