Difference between revisions of "LUA"
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| − | '' | + | '''LUA''' is an imperative programming language, designed in 1993 by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes, members of the Computer Graphics Technology Group (Tecgraf) at PUC-Rio, the Pontifical University of Rio de Janeiro, in Brazil. "Lua" means "Moon" in Portuguese. Lua is used in [[SimCity 4]] for the generation of help texts, creation of rewards and other types of codes. |
| + | More information about Lua can be found on the [http://www.lua.org/ official site] and on [http://en.wikipedia.org/wiki/Lua_(programming_language) Wikipedia]. | ||
| − | {{ | + | ==Use in SimCity 4== |
| − | [[ | + | Lua has many uses in SimCity 4, as mentioned above. The exact format used can vary depending on the use. The formats below are courtesy of [[People:Karybdis|Karybdis]]. |
| + | |||
| + | Instance by: CRC24Polynomial = 0x01864cfb, CRC24Seed = 0x00b704ce, return (CRC24(from, false) | 0xFF000000) | ||
| + | |||
| + | *[[LUAAdvice]] | ||
| + | *[[LUADefs]] | ||
| + | *[[LUAAdvisors]] | ||
| + | *[[LUAMission]] | ||
| + | *[[LUAObject]] | ||
| + | *[[LUASystem]] | ||
| + | *[[LUATutorials]] | ||
| + | |||
| + | |||
| + | ==Binary LUA== | ||
| + | The following format is for binary Lua scripts, and was developed by [[People:Quaxi|Quaxi]]. | ||
| + | |||
| + | Here are the first things known about the .objLua and .globalObjLua: | ||
| + | |||
| + | ===General Format=== | ||
| + | <pre> | ||
| + | DWord: 1b 4c 75 61 (ID) | ||
| + | Byte: Version | ||
| + | 16-Bytes: Header | ||
| + | ---> Root "Function Block" | ||
| + | </pre> | ||
| + | |||
| + | ===Function Block=== | ||
| + | <pre> | ||
| + | Dword: Character count n | ||
| + | n-Byte: Name of the Function (null terminated) | ||
| + | 5-Byte: unknown | ||
| + | Byte: argument Count | ||
| + | Byte: unknown | ||
| + | Byte: stack Size | ||
| + | |||
| + | 12-Byte: 00 | ||
| + | |||
| + | 4-Byte: constant counter | ||
| + | ---> Loop Constant Block | ||
| + | |||
| + | 4-Byte: functions counter | ||
| + | ---> Loop Function Block | ||
| + | |||
| + | 4-Byte: instruction counter | ||
| + | ---> Loop Instruction Block | ||
| + | </pre> | ||
| + | |||
| + | ===Instruction Block=== | ||
| + | (a=Operand a, b=Operand b, c=Operand c, o=Opcode): | ||
| + | |||
| + | <pre> | ||
| + | Dword: aaaa aaaa bbbb bbbb bccc cccc ccoo oooo | ||
| + | </pre> | ||
| + | |||
| + | This Document lists the available opcodes: http://www.tecgraf.puc-rio.br/~lhf/ftp/doc/sblp2005.pdf | ||
| + | |||
| + | ===Constant Block=== | ||
| + | <pre> | ||
| + | Byte: ConstantType | ||
| + | ----> Constant Data | ||
| + | </pre> | ||
| + | |||
| + | ===List of Known Constant Data Types=== | ||
| + | |||
| + | 0x00 = Empty, Null - This seems to mark an empty block | ||
| + | 0x03 = Number | ||
| + | DWord: Unknown | ||
| + | DWord: Unknown | ||
| + | 0x04 = Strings | ||
| + | DWord: Length n of the following PString | ||
| + | n-Bytes: Instruction Name, null-terminated | ||
| + | |||
| + | |||
| + | {{navbox/FORMAT}} | ||
| + | [[Category:File Formats/SC4]] | ||
| + | [[Category:MTS2]] | ||
Revision as of 11:51, 9 September 2012
 |
The information in this article was copied from the SimsWiki and may be outdated. This article has not been reviewed for technical accuracy or updated knowledge on this topic. If you are knowledgeable enough on the topic to review the article, please do so and remove this label. (more info). |
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LUA is an imperative programming language, designed in 1993 by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes, members of the Computer Graphics Technology Group (Tecgraf) at PUC-Rio, the Pontifical University of Rio de Janeiro, in Brazil. "Lua" means "Moon" in Portuguese. Lua is used in SimCity 4 for the generation of help texts, creation of rewards and other types of codes.
More information about Lua can be found on the official site and on Wikipedia.
Contents
Use in SimCity 4
Lua has many uses in SimCity 4, as mentioned above. The exact format used can vary depending on the use. The formats below are courtesy of Karybdis.
Instance by: CRC24Polynomial = 0x01864cfb, CRC24Seed = 0x00b704ce, return (CRC24(from, false) | 0xFF000000)
Binary LUA
The following format is for binary Lua scripts, and was developed by Quaxi.
Here are the first things known about the .objLua and .globalObjLua:
General Format
DWord: 1b 4c 75 61 (ID) Byte: Version 16-Bytes: Header ---> Root "Function Block"
Function Block
Dword: Character count n n-Byte: Name of the Function (null terminated) 5-Byte: unknown Byte: argument Count Byte: unknown Byte: stack Size 12-Byte: 00 4-Byte: constant counter ---> Loop Constant Block 4-Byte: functions counter ---> Loop Function Block 4-Byte: instruction counter ---> Loop Instruction Block
Instruction Block
(a=Operand a, b=Operand b, c=Operand c, o=Opcode):
Dword: aaaa aaaa bbbb bbbb bccc cccc ccoo oooo
This Document lists the available opcodes: http://www.tecgraf.puc-rio.br/~lhf/ftp/doc/sblp2005.pdf
Constant Block
Byte: ConstantType ----> Constant Data
List of Known Constant Data Types
0x00 = Empty, Null - This seems to mark an empty block
0x03 = Number
DWord: Unknown
DWord: Unknown
0x04 = Strings
DWord: Length n of the following PString
n-Bytes: Instruction Name, null-terminated
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