Class: Logicle::Digraph

Inherits:
Object
  • Object
show all
Defined in:
lib/logicle/digraph.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Digraph

Returns a new instance of Digraph.



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# File 'lib/logicle/digraph.rb', line 5

def initialize
  @nodes, @edges = {}, {}
end

Instance Attribute Details

#edges ⇒ Object (readonly)

Returns the value of attribute edges.



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# File 'lib/logicle/digraph.rb', line 3

def edges
  @edges
end

#nodes ⇒ Object (readonly)

Returns the value of attribute nodes.



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# File 'lib/logicle/digraph.rb', line 3

def nodes
  @nodes
end

Instance Method Details

#add_edge(start_id, end_id) ⇒ Object 



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# File 'lib/logicle/digraph.rb', line 27

def add_edge(start_id, end_id)
  start_node, end_node = @nodes[start_id], @nodes[end_id]

  if start_node && end_node 
    end_node.append_input(start_node)
    @edges[start_id] = end_id
    true
  else
    raise_unknown_nodes(start_id => start_node, end_id => end_node)
  end
end

#add_node(id, node_type) ⇒ Object 



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# File 'lib/logicle/digraph.rb', line 23

def add_node(id, node_type)
  @nodes[id] = Node.new(id, node_type)
end

#evaluate ⇒ Object 



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# File 'lib/logicle/digraph.rb', line 9

def evaluate
  outputs.each_value do |output|
    output.state
  end
end

#inputs ⇒ Object 



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# File 'lib/logicle/digraph.rb', line 15

def inputs
  @nodes.select { |id, node| node.switch? }
end

#outputs ⇒ Object 



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# File 'lib/logicle/digraph.rb', line 19

def outputs
  @nodes.select { |id, node| node.bulb? }
end