Sha256: 395705c4ca9770b7defcff7a78f8494d8f31f56f797ef326c5f3f2461c6c6da5
Contents?: true
Size: 897 Bytes
Versions: 10
Compression:
Stored size: 897 Bytes
Contents
module BoardGameGrid
# = Direction
#
# The Direction that something is moving on a 2d plane
class Direction
# New objects can be instantiated with
#
# @param [Fixnum] dx
# the dx magnitude.
#
# @param [Fixnum] dy
# the dy magnitude.
#
# ==== Example:
# # Instantiates a new Direction
# BoardGameGrid::Direction.new(1, 1)
def initialize(dx, dy)
x = dx == 0 ? dx : dx/dx.abs
y = dy == 0 ? dy : dy/dy.abs
@x, @y = x, y
end
# @return [Fixnum] the x magnitude.
attr_reader :x
# @return [Fixnum] the y magnitude.
attr_reader :y
# Check if directions are equal by seeing if their magnitudes are equal.
#
# @param [Direction] other
# the other direction to compare to.
#
# @return [Boolean]
def ==(other)
self.x == other.x && self.y == other.y
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems