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Documented initial state.

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Patrick Lühne 2016-08-14 15:39:25 +02:00
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commit 562b2296e5
1 changed files with 13 additions and 2 deletions
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doc/output-format.md
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@ -88,7 +88,7 @@ SAS variables are inherently multivalued, which results in two or more values of
With PDDL, Boolean variables are created from the PDDL predicates.
Variables ared named after the PDDL predicates, `variable(<PDDL predicate>).`
Each variable contains exactly two values (one true, one false) of the form `value(<PDDL predicate>, <bool>)`.
Each variable contains exactly two values (one `true`, one `false`) of the form `value(<PDDL predicate>, <bool>)`.
Note that with PDDL, variables and values are named identically.
### Actions
@ -121,7 +121,7 @@ Conditional effects are currently only supported with SAS input problems.
### Constants/Objects
```prolog
% define a <constant> or object
% declares a <constant> or object
constant(constant(<name>)).
% specifies <constant> to be of type type(<name>)
@ -132,3 +132,14 @@ Constants and objects are the entities that are affected by [actions](#actions),
Constants are global for a domain, while objects are problem-specific.
`plasp` does not distinguish between the two (modeling both as constants), as both are identically used static identifiers.
### Initial State
```prolog
% initializes <variable> with a specific <value>
initialState(<variable>, <value>).
```
The initial state contains all variable assignments that hold before executing any actions.
Note that with PDDL, the initial state might not assign values to all variables. Instead, unassigned values have to be assigned `false` manually.