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Revised 3.3.6

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Jonatan Pålsson 2011-05-12 21:32:57 +02:00
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@ -2974,8 +2974,8 @@ reference "alg:A-simple-generator"
\begin_layout Standard \begin_layout Standard
The obvious solution to this problem is to ensure mutual exclusion by using The obvious solution to this problem is to ensure mutual exclusion by using
some sort of a lock, which may work well in many concurrent systems. some sort of a lock, which may work well in many concurrent systems.
In a distributed system such as the GGS however, this lock, along with the In a distributed system such as the GGS however, this lock, along with
state, would have to be distributed. the state, would have to be distributed.
If the lock is not distributed, no guaranties can be made that two nodes If the lock is not distributed, no guaranties can be made that two nodes
in the distributed system do not generate the same identifier. in the distributed system do not generate the same identifier.
\end_layout \end_layout
@ -4353,8 +4353,8 @@ target "http://www.objectmentor.com/resources/articles/srp.pdf"
are widely respected as good practices in the world of software engineering are widely respected as good practices in the world of software engineering
and development. and development.
By dividing the GGS into modules each part of the GGS can be modified By dividing the GGS into modules each part of the GGS can be modified without
without damaging, or requiring changes in the rest of the system. damaging, or requiring changes in the rest of the system.
Due to the hot code updates featured in Erlang, it is theoretically possible Due to the hot code updates featured in Erlang, it is theoretically possible
to update parts of the GGS while the system is running, this has however to update parts of the GGS while the system is running, this has however
not been implemented in the prototype. not been implemented in the prototype.
@ -4999,12 +4999,13 @@ This module holds the game logic of a game and is responsible for the VM
\begin_layout Standard \begin_layout Standard
The game VM contains the state of the VM and a table token associated with The game VM contains the state of the VM and a table token associated with
a running game. a running game.
GameVM is started by the table module. The game VM is started by the table module.
The table module hands over a token to the game VM during initialization. The table module hands over a token used for identification to the game
VM during initialization.
During initialization a new VM instance and various objects associated During initialization a new VM instance and various objects associated
to the VM instance will be created. to the VM instance are created.
Callbacks to Erlang are registered into the VM and then the source code Callbacks to Erlang are registered into the VM and the source code of a
of a game is loaded into the VM and the game is ready for startup. game is loaded into the VM, finally the game is ready for startup.
The only means for a game to communicate with the VM is through usage of The only means for a game to communicate with the VM is through usage of
a provided interface. a provided interface.
@ -5015,12 +5016,12 @@ The VM itself makes it possible for the game developer to program in the
programming language covered by the VM. programming language covered by the VM.
In future releases, more game VMs will be added to support more programming In future releases, more game VMs will be added to support more programming
languages. languages.
Because the game VM keeps track of the correct table, the game developer Since the game VM keeps track of the correct table, the game developer
does not need to take this into consideration when programming a game. does not need to take this into consideration when programming a game.
If a method within the game sends data to a player, it will be delivered If a method within the game sends data to a player, the data is delivered
to the player in the correct running game. to the player in the correct running game.
The same game token is used to store the game state in the database. The same game token is used to store the game state in the database.
Therefore, no game states will be mixed up either. Therefore, no game states can be mixed up.
\end_layout \end_layout
\begin_layout Standard \begin_layout Standard