Class: Gamefic::Query::General

Inherits:
Base
  • Object
show all
Defined in:
lib/gamefic/query/general.rb

Overview

A General query accepts an array of entities to filter. Unlike Scoped queries, the resulting entities will not necessarily be in the actor’s immediate vicinity.

General queries can also be passed a Proc that returns an array of entities. If the Proc accepts an argument, it will be given the subject of the query.

Instance Attribute Summary

Attributes inherited from Base

#ambiguous, #arguments

Instance Method Summary collapse

Methods inherited from Base

#accept?, #ambiguous?, #precision

Constructor Details

#initialize(entities, *arguments, ambiguous: false) ⇒ General

Returns a new instance of General.

Parameters:

  • entities (Array, Proc)
  • arguments (Array<Object>)
  • ambiguous (Boolean) (defaults to: false) 


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# File 'lib/gamefic/query/general.rb', line 17

def initialize entities, *arguments, ambiguous: false
  super(*arguments, ambiguous: ambiguous)
  @entities = entities
end

Instance Method Details

#query(subject, token) ⇒ Object 



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# File 'lib/gamefic/query/general.rb', line 26

def query subject, token
  filtered = available_entities(subject).that_are(*@arguments)
  return Result.new(token, nil) if filtered.include?(token)

  scan = Scanner.scan(filtered, token)

  ambiguous? ? ambiguous_result(scan) : unambiguous_result(scan)
end

#select(subject) ⇒ Object 



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# File 'lib/gamefic/query/general.rb', line 22

def select subject
  available_entities(subject).that_are(*@arguments)
end