This is something I was always missing - posibbility to operate on
binary files or streams in pure lua. In most cases we do only need to
read simple variables from files such as integers with different amount
of bytes. This "class" will provide that ability.
It's a simple implementation of following C module for lua:
http://www.inf.puc-rio.br/~roberto/struct/
It has much less, though. Following elements have been implemented:
">" flag to set mode to big endian.
"<" flag to set mode to little endian.
"b" a signed char.
"B" an unsigned char.
"h" a signed short (2 bytes).
"H" an unsigned short (2 bytes).
"i" a signed int (4 bytes).
"I" an unsigned int (4 bytes).
"l" a signed long (8 bytes).
"L" an unsigned long (8 bytes).
"s" a zero-terminated string.
An example how to use it:
```lua
local packed = Struct.pack('<LIhBsb', 123456789123456789, 123456789,
-3200, 255, 'Test message', -1)
-- packed is now a lua string we can save to file as binary data
local L, I, h, B, s, b = Struct.unpack('<LIhBsb', packed)
print(L, I, h, B, s, b)
```
You can use g_resources.readFileContents as function to read binary
files and parse them via this class.
* Can now filter market items by vocation, level, slot type, and depot items.
* Added new bitwise lib for handling flag operations.
* Can now get/set local player vocation/premium (TODO: spell list).
Sandboxing makes module scripts run inside an isolated lua environments,
making more easier and secure to script
Move and rework TextMessage using the new sandbox system
* Added new protocol lib.
* Added missing Game Features to game/const.lua
* Added new Market module that will handle the market/market protocols too.
* Finished Market protocol and begun on the market structure (MarketOffer etc).
* Removed any traces of market protocol in the core (I think).
* Moved minimap images to /images.
* Removed old zoom images for minimap.
* Fixed a bug with randomize outfit.
* Split game module into game and game_interface
* Move core_lib to corelib
* Move miniwindow to corelib
* Introduce init.lua script for initializing the client, giving much more flexibility
* OTClient is no longer Application derived and is much simpler
Konrad Kuśnierz