Added Collecting Rocks Mechanic

In the game, we wanted our player to interact with the story of Giant's Causeway directly. The tale of Giant's Causeway begins with Finn McCool, a mythical Irish warrior, and he starts collecting stones to reach a giant in another land. I scripted a panel to pop up on the screen and prompt the player to press a certain key to collect the rocks and a counter to keep track of how many rocks the player has collected. 

To do this, in Unity, a placed a trigger on my rock objects and used a boolean and Input.GetKeyDown() line to determine when the prompt should pop up and the player has picked up a rock.

--Presley