Class: StackWars::Territory

Inherits:
Object
  • Object
show all
Defined in:
lib/stack_wars/territory.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(position, params = {}) ⇒ Territory

Returns a new instance of Territory.



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# File 'lib/stack_wars/territory.rb', line 3

def initialize(position, params={})
  @position = position
  @occupant = params.fetch(:occupant, nil)

  if occupied?
    @army_strength = params.fetch(:army_strength)
  else
    @army_strength = 0
  end
end

Instance Attribute Details

#army_strength ⇒ Object (readonly)

Returns the value of attribute army_strength.



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# File 'lib/stack_wars/territory.rb', line 14

def army_strength
  @army_strength
end

#occupant ⇒ Object (readonly)

Returns the value of attribute occupant.



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# File 'lib/stack_wars/territory.rb', line 14

def occupant
  @occupant
end

Instance Method Details

#add_one_army(player) ⇒ Object 



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# File 'lib/stack_wars/territory.rb', line 20

def add_one_army(player)
  @army_strength += 1

  @occupant ||= player.color
end

#baseline_for?(player) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stack_wars/territory.rb', line 56

def baseline_for?(player)
  case player.color
  when "white"
    row == Battlefield::WHITE_BASELINE
  when "black"
    row == Battlefield::BLACK_BASELINE
  else
    raise ArgumentError, "#{color} is not a valid color"
  end
end

#column ⇒ Object 



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# File 'lib/stack_wars/territory.rb', line 71

def column
  @position[0]
end

#controlled_by?(player) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stack_wars/territory.rb', line 16

def controlled_by?(player)
  baseline_for?(player) || occupied_by?(player) 
end

#fortify(player) ⇒ Object 



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# File 'lib/stack_wars/territory.rb', line 33

def fortify(player)
  if controlled_by?(player)
    player.deploy_army
    add_one_army(player)

    @occupant ||= player.color
  else
    raise Errors::IllegalMove
  end
end

#occupied? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stack_wars/territory.rb', line 44

def occupied?
  !!@occupant
end

#occupied_by?(player) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stack_wars/territory.rb', line 52

def occupied_by?(player)
  @occupant == player.color
end

#remove_one_army ⇒ Object

Raises:



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# File 'lib/stack_wars/territory.rb', line 26

def remove_one_army
  raise Errors::IllegalMove unless @army_strength > 0

  @army_strength -= 1
  @occupant = nil if @army_strength == 0
end

#row ⇒ Object 



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# File 'lib/stack_wars/territory.rb', line 67

def row
  @position[1]
end

#unoccupied? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stack_wars/territory.rb', line 48

def unoccupied?
  !occupied?
end