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| | + | | __TOC__ |
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| − | =Description= | + | =WARNING: THIS IS DEPRECATED= |
| | + | =Deprecated= |
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| − | This page describes how to use the Formula Parser Equipment Variables Demo, provided in a sandbox (in Subversion)
| + | The remainders here are saved for archival purposes at the moment (they are a few useful tidbits the code folks don't want to retype from scratch) |
| | | | |
| − | =Location=
| + | Please see [[Setting up the new Formula System]] |
| − | | |
| − | The Demo is in sandbox/EqVarDemo/PCGen and can be checked out from subversion as any other branch of PCGen. Please use build.xml (and ant) to build PCGen, as Gradle support may not be fully enabled in this branch.
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| | | | |
| | =General Comments and Limitations= | | =General Comments and Limitations= |
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| | * There is at least one UI problem, in that the UI doesn't realize that the PRExxx status of an EqMod can dynamically changes when another EqMod is added. The EqMod in question has to be selected to turn red. | | * There is at least one UI problem, in that the UI doesn't realize that the PRExxx status of an EqMod can dynamically changes when another EqMod is added. The EqMod in question has to be selected to turn red. |
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| − | =New Game Mode MISC Info File Token= | + | =New Global Modifier Tokens= |
| − | | |
| − | The following tokens are REQUIRED in the game mode to set the default value of a variable type:
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| − | DEFAULTVARIABLEVALUE:NUMBER|0
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| − | DEFAULTVARIABLEVALUE:POINT|0,0
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| − | | |
| − | =New Campaign File Tokens=
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| − | | |
| − | ==DATADEFINITION==
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| − | DATADEFINITION: is a new Campaign file token (for PCC files). It is treated "recursively" like other tokens, e.g. TEMPLATE.
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| − | | |
| − | Limitations: It does not support PRExxx or INCLUDE/EXCLUDE.
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| − | | |
| − | Future Development: It is possible that PRExxx could be supported, it is unlikely that INCLUDE/EXCLUDE would be supported due to the nature of definitions not being traditional objects (too much unique code)
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| − | | |
| − | ==VARIABLE==
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| − | VARIABLE: is a new Campaign file token (for PCC files). It is treated "recursively" like other tokens, e.g. TEMPLATE.
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| − | | |
| − | Limitations: It does not support PRExxx or INCLUDE/EXCLUDE.
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| − | | |
| − | Future Development: It is possible that PRExxx could be supported, it is unlikely that INCLUDE/EXCLUDE would be supported due to the nature of variables not being traditional objects (too much unique code)
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| − | | |
| − | =New Variable File Tokens=
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| − | | |
| − | ==LOCAL==
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| − | | |
| − | LOCAL: is a token for the Variable files defined by the VARIABLE: PCC token. These have 2 arguments, the scope, and the variable name. For example:
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| − | LOCAL:EQUIPMENT|ModCount
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| − | | |
| − | Limitations:
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| − | * EQUIPMENT and EQUIPMENT.PART are supported (more below in discussion of Scope of Variables)
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| − | * By Design: Must appear as the first token on a line
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| − | | |
| − | Future Development:
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| − | * Resolve whether "EQUIPMENT" is actually the item on the line or whether it is "Equipment Variables" (how the code thinks internally). This is eventually a risk of tying closely the code and the data, so this requires consideration of how object types are defined (a much longer discussion than belongs here - please ask on _dev if you are interested)
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| − | | |
| − | ==EXPLANATION==
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| − | | |
| − | EXPLANATION: is a free-text token (no parsing is really done) that is designed to describe why a variable exists
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| − | | |
| − | Limitations:
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| − | * By Design: Must not appear as the first token on a line
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| − | | |
| − | Behavior:
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| − | * Overwrites (as if someone would use it twice??)
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| − | | |
| − | ==Future Development==
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| − | | |
| − | At least "GLOBAL" would be a future development item (though it would "default" to that, so the following variable file is valid:
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| − | MyGlobalVariable
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| − | GLOBAL:MyOtherGlobalVariable
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| − | LOCAL:EQUIPMENT|MyLocalVar
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| − | | |
| − | =New Campaign File REQUIREMENTS=
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| − | | |
| − | There are two types of files: Data Definition and Variable
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| − | | |
| − | ==Data Definition==
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| − | Identifies variable types
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| − | The following tokens are REQUIRED in data definition file:
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| − | VARTYPEDEF:NUMBER|VAR
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| − | VARTYPEDEF:POINT|AREA
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| − | | |
| − | ==Variable File==
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| − | | |
| − | Identifies variables that can be used in the data
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| − | | |
| − | Note that the GLOBAL and LOCAL tokens today IMPLY VAR. Meaning
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| − | GLOBAL:MyOtherGlobalVariable
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| − | is (to the code) actually
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| − | GLOBAL:VAR|MyOtherGlobalVariable
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| − | | |
| − | Note this can be combined with the implied GLOBAL, so
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| − | MyGlobalVariable
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| − | is (to the code) actually
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| − | GLOBAL:VAR|MyGlobalVariable
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| − | | |
| − | We will need to decide if all these items can stay implied, but I believe they can.
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| − | | |
| − | =Prerequisites=
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| − | ==PREEQVAR==
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| − | PREEQVARxxx exist as PRE tokens. All valid suffixes (LT, EQ, NEQ, etc.) are supported. Please see the PREVAR documentation if you are not familiar with the legal suffixes.
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| − | | |
| − | Syntax:
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| − | PREEQVARxx:y,z
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| − | | |
| − | Limitations:
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| − | * Only Numbers (Integer or Decimal) or a single, legal variable name are supported as y and z.
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| − | | |
| − | This refers to variables that are "EQUIPMENT" in the LOCAL: line of the Variable file
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| − | | |
| − | ==PREEQPARTVAR==
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| − | | |
| − | PREEQPARTVARxxx exist as PRE tokens. All valid suffixes (LT, EQ, NEQ, etc.) are supported. Please see the PREVAR documentation if you are not familiar with the legal suffixes.
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| − | | |
| − | Syntax:
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| − | PREEQPARTVARxx:y,z
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| − | | |
| − | Limitations:
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| − | * Only Numbers (Integer or Decimal) or a single, legal variable name are supported as y and z.
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| − | | |
| − | This refers to variables that are "EQUIPMENT.PART" in the LOCAL: line of the Variable file
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| − | =Modify Token=
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| − | ==Syntax==
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| − | MODIFY:w|x|y|PRIORITY=z
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| − | w is the variable name as defined in the Variable LST file
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| − | x is the modification type. Legal types are shown below.
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| − | y is the modification (based on the type, see below)
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| − | z is an OPTIONAL priority. If not specified, it is assumed to be zero.
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| − | | |
| − | ==Priority==
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| − | Items are processed in a Natural Priority order. PRIORITY is used to order any modifiers, then a natural ordering is used. So:
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| − | MODIFY:Var|ADD|4
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| − | MODIFY:Var|MULTIPLY|5
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| − | | |
| − | are applied, the Multiplication will ALWAYS occur first, regardless of token order in the file. If you are unsure of natural order, use PRIORITY to control processing order.
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| − | Priority must be >= 0
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| − | | |
| − | Items are processed from the lowest priority to the highest (highest is applied last, so a SET with a high priority is applied last)
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| − | | |
| − | A clarification on natural ordering: it does NOT replace priority if not defined. The two priority comparisons (user priority and natural priority) are independent. So an item of user priority 1 and natural priority 3 will be processed before user priority 2 and natural priority 2, solely based on the user priority)
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| − | | |
| − | ==Legal Types==
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| − | ===ADD===
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| − | ADD takes a Numeric Argument. Must be a legal Integer or Double, no calculations are allowed.
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| − | The 'natural' priority is 3.
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| − | | |
| − | ===MULTIPLY===
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| − | MULTIPLY takes a Numeric Argument. Must be a legal Integer or Double, no calculations are allowed.
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| − | The 'natural' priority is 2.
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| − | | |
| − | ===MAX===
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| − | MAX takes a Numeric Argument. Must be a legal Integer or Double, no calculations are allowed.
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| − | This sets an upper bound on the value (a maximum that the value can be)
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| − | The 'natural' priority is 4.
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| − | | |
| − | ===MIN===
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| − | MIN takes a Numeric Argument. Must be a legal Integer or Double, no calculations are allowed.
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| − | This sets a lower bound on the value (a minimum that the value can be)
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| − | The 'natural' priority is 5.
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| − | | |
| − | ===SET===
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| − | SET takes a Numeric Argument. Must be a legal Integer or Double, no calculations are allowed.
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| − | This sets the value (any previous value is overwritten/ignored)
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| − | The 'natural' priority is 0.
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| − | ===SOLVE===
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| − | The 'natural' priority is 6.
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| − | This calculates a new value, and equations using other variables are allowed. If you have a value that was previously modified from the default (or you want to enable that based on using a higher PRIORITY= then you should use the value() function to capture the existing value. Thus the following are equivalent:
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| − | MODIFY:Foo|ADD|4
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| − | MODIFY:Foo|SOLVE|value()+4
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| − | | |
| − | (Note that the ADD is preferred because it is smaller in memory and faster to process, but more complex calculations will obviously require SOLVE)
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| − | =Functions Supported=
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| − | | |
| − | The following functions are supported:
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| − | * min
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| − | * max
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| − | * ceil
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| − | * floor
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| − | * if
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| − | * abs
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| − | * round
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| − | If you have questions about the behavior, see the existing PCGen docs.
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| − | | |
| − | =About Variable Scope=
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| − | In this demo, there are now TWO local scopes:
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| − | * One for Equipment
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| − | * One for Equipment Parts
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| − | | |
| − | The distinction is where they are applied. If it is necessary to have a variable controlling what EQMODs are legal, it is likely that is related to the Part (because EqMods are applied to Parts (aka Heads) not to Equipment.) ... So the charms stuff from FantasyCraft (for example) are likely to be on PARTs, not on Equipment.
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| − | =Walkthrough of the connections=
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| − | Note the Game Mode MISCINFO file defines a default for NUMBER and POINT
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| − | Only items with a default value in the Misc Info file may be used as the first argument on the TYPE line in the variable file.
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| − | Therefore:
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| − | TYPE:NUMBER|VAR
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| − | Defines an internal "variable type" of "VAR" that holds numbers.
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| − | | |
| − | This is done because we may want something like:
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| − | TYPE:NUMBER|MOVEMENT
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| − | | |
| − | This allows us to have multiple, non-conflicting types of numbers in the data.
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| − | | |
| − | Once the second argument is used in a TYPE entry, then it can be used in other data, including LOCAL and GLOBAL in the variable file and MODIFY in other LST files. Items are referred to by the second argument, NOT the underlying type. So the following would be reasonable data:
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| − | TYPE:POINT|AREA
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| − | AREA|Face (note that since GLOBAL is implied, this is equal to GLOBAL:AREA|Face)
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| − | MODIFY:AREA=Face|SET|10,10
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| − | Note that we are asking the data team to put the TYPE into the var file, but we are currently implying the Face in the code. This is so that we can "hide" the use of GLOBAL in the test (since that would cause a few confusing issues)
| + | MODIFY: and MODIFYOTHER: (see below for the global tokens) are legal in the Global Modifier file. No other tokens are legal. |
| | | | |
| − | Note also that MODIFY CANNOT be used with the "=" in the first argument, so please don't try it! I am echoing long term intent, not immediate syntax.
| + | Tokens must appear one per line in the Global Modifier file |
