I have now got different surface types in the game. This was important so that I can have tarmac sections followed by sections on cobbles. Those into cycling will understand the relevance of this. At the moment there is simply a collision check to see what surface type each rider is on, which then sets a variable. At the moment, this variable is only used to create the particle effects for the dust seen in the screen-shots. However in the future, this variable can also be tied into the game engine affecting stamina, comfort etc for each rider in turn.
