Class: Pacman::Arcade::Direction

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#dx ⇒ Object (readonly)

Returns the value of attribute dx

Returns:

  • (Object) —

    the current value of dx



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# File 'lib/pacman/arcade/direction.rb', line 5

def dx
  @dx
end

#dy ⇒ Object (readonly)

Returns the value of attribute dy

Returns:

  • (Object) —

    the current value of dy



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# File 'lib/pacman/arcade/direction.rb', line 5

def dy
  @dy
end

Class Method Details

.all ⇒ Object 



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

def self.all = [up, down, left, right]

.down ⇒ Object 



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

def self.down = @down ||= new(dy: 1, dx: 0)

.left ⇒ Object 



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# File 'lib/pacman/arcade/direction.rb', line 10

def self.left = @left ||= new(dy: 0, dx: -1)

.right ⇒ Object 



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# File 'lib/pacman/arcade/direction.rb', line 12

def self.right = @right ||= new(dy: 0, dx: 1)

.up ⇒ Object 



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

def self.up = @up ||= new(dy: -1, dx: 0)

Instance Method Details

#opposite ⇒ Object 



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# File 'lib/pacman/arcade/direction.rb', line 16

def opposite = Direction.new(dy: -dy, dx: -dx)