README.txt
1What's In This Directory
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3
4* player1.cpp - this is exactly what's covered in C++ Template
5 Metaprogramming (http://www.boost-consulting.com/mplbook); in fact,
6 it was auto-extracted from the examples as shown in the book. The
7 state machine framework and its use are together in one .cpp file;
8 normally they would be separated. You can think of the framework as
9 ending with the definition of the generate_dispatcher class
10 template.
11
12 You can ignore the typedef called "dummy;" that was included in order to
13 test an intermediate example that appears in the book.
14
15* player2.cpp - this example demonstrates that the abstraction of the
16 framework is complete by replacing its implementation with one that
17 dispatches using O(1) table lookups, while still using the same code
18 to describe the particular FSM. Look at this one if you want to see
19 how to generate a static lookup table that's initialized at dynamic
20 initialization time.
21
22* player.cpp, state_machine.hpp - This example predates the book, and
23 is more sophisticated in some ways than what we cover in the other
24 examples. In particular, it supports state invariants, and it
25 maintains an internal event queue, which requires an additional
26 layer of runtime dispatching to sort out the next event to be
27 processed.
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