Module: Gobgems::Direction

Included in:

Program

Defined in:

lib/gobgems/direction.rb

Class Method Summary

• .all ⇒ Object
• .east ⇒ Object
• .north ⇒ Object
• .south ⇒ Object
• .west ⇒ Object

Class Method Details

.all ⇒ Object

# File 'lib/gobgems/direction.rb', line 19

def all
  [east, west, south, north]
end

.east ⇒ Object

# File 'lib/gobgems/direction.rb', line 3

def east
  @east ||= -> (x, y) { [x, y+1] }
end

.north ⇒ Object

# File 'lib/gobgems/direction.rb', line 11

def north
  @north ||= -> (x, y) { [x-1, y] }
end

.south ⇒ Object

# File 'lib/gobgems/direction.rb', line 15

def south
  @south ||= -> (x, y) { [x+1, y] }
end

.west ⇒ Object

# File 'lib/gobgems/direction.rb', line 7

def west
  @west ||= -> (x, y) { [x, y-1] }
end