Class: Percept::Field

Inherits:
Object
  • Object
show all
Includes:
ColorUtils
Defined in:
lib/percept/field.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ColorUtils

#color!

Constructor Details

#initialize(params) ⇒ Field

Returns a new instance of Field.



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# File 'lib/percept/field.rb', line 9

def initialize(params)
  self.start_x = params.fetch(:start_x)
  self.end_x = params.fetch(:end_x)
  self.start_y = params.fetch(:start_y)
  self.end_y = params.fetch(:end_y)
  self.line = params.fetch(:line)
  self.image = params.fetch(:image)
end

Instance Attribute Details

#end_x ⇒ Object

Returns the value of attribute end_x.



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# File 'lib/percept/field.rb', line 7

def end_x
  @end_x
end

#end_y ⇒ Object

Returns the value of attribute end_y.



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# File 'lib/percept/field.rb', line 7

def end_y
  @end_y
end

#image ⇒ Object

Returns the value of attribute image.



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# File 'lib/percept/field.rb', line 7

def image
  @image
end

#line ⇒ Object

Returns the value of attribute line.



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# File 'lib/percept/field.rb', line 7

def line
  @line
end

#start_x ⇒ Object

Returns the value of attribute start_x.



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# File 'lib/percept/field.rb', line 7

def start_x
  @start_x
end

#start_y ⇒ Object

Returns the value of attribute start_y.



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# File 'lib/percept/field.rb', line 7

def start_y
  @start_y
end

Instance Method Details

#blackish_pixels ⇒ Object 



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# File 'lib/percept/field.rb', line 34

def blackish_pixels
  enclosed_pixels.select(&:blackish?)
end

#contains_text? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/percept/field.rb', line 38

def contains_text?
  blackish_pixels.size > 100
end

#enclosed_pixels ⇒ Object 



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# File 'lib/percept/field.rb', line 30

def enclosed_pixels
  image.get_pixels(start_x, start_y, width, height)
end

#height ⇒ Object 



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# File 'lib/percept/field.rb', line 22

def height
  end_y - start_y
end

#overlaps?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/percept/field.rb', line 42

def overlaps?(other)
  !(start_x > other.end_x || end_x < other.start_x ||
    start_y > other.end_y || end_y < other.start_y)
end

#pixels ⇒ Object 



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# File 'lib/percept/field.rb', line 18

def pixels
  @pixels ||= top_pixels + bottom_pixels + left_pixels + right_pixels
end

#store_pixels! ⇒ Object 



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# File 'lib/percept/field.rb', line 47

def store_pixels!
  image.store_pixels(start_x, start_y, width, 1, top_pixels)
  image.store_pixels(start_x, end_y - 1, width, 1, bottom_pixels)
  image.store_pixels(start_x, start_y + 1, 1, height - 2, left_pixels)
  image.store_pixels(end_x - 1, start_y + 1, 1, height - 2, right_pixels)
end

#width ⇒ Object 



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# File 'lib/percept/field.rb', line 26

def width
  end_x - start_x
end