Class: Pacman::Arcade::Maze

Inherits:
Object
  • Object
show all
Defined in:
lib/pacman/arcade/maze.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(layout) ⇒ Maze

Returns a new instance of Maze.



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# File 'lib/pacman/arcade/maze.rb', line 8

def initialize(layout)
  @rows = pad_rows(layout.lines.map(&:chomp))
  @height = @rows.length
  @width = @rows.first.length
end

Instance Attribute Details

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/pacman/arcade/maze.rb', line 6

def height
  @height
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/pacman/arcade/maze.rb', line 6

def width
  @width
end

Instance Method Details

#ghost_starts ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 31

def ghost_starts
  positions_of("G")
end

#open_neighbors(position) ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 22

def open_neighbors(position)
  Direction.all.map { |direction| wrap(position.step(direction)) }
    .reject { |neighbor| wall?(neighbor) }
end

#pellet_positions ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 14

def pellet_positions
  positions_of(".")
end

#player_start ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 27

def player_start
  positions_of("P").first
end

#power_positions ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 18

def power_positions
  positions_of("o")
end

#wall?(position) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pacman/arcade/maze.rb', line 39

def wall?(position)
  cell(position) == "#"
end

#wrap(position) ⇒ Object 



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# File 'lib/pacman/arcade/maze.rb', line 35

def wrap(position)
  Position.new(row: position.row % height, col: position.col % width)
end