Game Development Reference
In-Depth Information
more measured group and divide the former by the latter. A result greater than 1
represents a twitchy game to some degree, while a result less than 1 signifi es a more
measured overall style of gameplay. As well as providing an insight into the game
itself, the twitch factor also helps to identify what type of player might enjoy the
title and goes some way to establishing why they would play the game.
Once again it is important to note that while these AGs are derived from the
writings of professional reviewers, they have to describe what the player actually
has to do in a game and so are not just the whim of the reviewer. AGs are derived
from the gameplay programmed into games by game developers based on the
concept and game design documents agreed on with publishers.
THREE DRIVING GAMES
In the previous chapter we looked briefl y at two driving games, Wreckless: The
Yakuza Missions and Colin McRae Rally 2005. Now we can take another look at
these games, but in far more and more reliable detail; in GIL detail. We'll also throw
into our analysis Gran Turismo 4, a classic racing game. Using GIL we can easily
generate the activity profi les, Figure 3.2, for the three games and begin to see what
these games do and don't have in common.
All three games are driving/piloting/crewing ( DPC ) in our GIL mapping of
known genres. But their profi les are quite different even in terms of the highest
scoring AGs. Remember what we said in Chapter 2 about the driving genre; it is a
meta-genre, sharing only some major AGs. We can now use activity profi les to give
an idea of just how diverse the genre can be.
Figure 3.2
Activity profi les for three racing games. (See color insert.)
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