The previous chapter closed by creating a basic coin object from a non-uniformly scaled cylinder primitive. This object was created by selecting GameObject | 3D Object | Cylinder from the application menu. See Figure 2.1. The coin object, as a concept, represents a basic or fundamental unit in our game logic because the player character should be actively searching the level looking for coins to collect before a timer runs out. This means that the coin is more than mere appearance; its purpose in the game is not simply eye candy, but is functional. It makes an immense difference to the game outcome whether the coin is collected by the player or not. Therefore, the coin object, as it stands, is lacking in two important respects. Firstly, it looks dull and grey—it doesn't really stand out and grab the player's attention. Secondly, the coin cannot actually be collected yet. Certainly, the player can walk into the coin, but nothing appropriate happens in response:
Figure...