engine.direction.Direction

Class represents the direction of movements of some object. There are 4 possible directions (north, east, south, west). Class provides interface for changing direction, as well as calculating coordinates in direction.

Properties

• delta - list informing how consecutive directions change coordinates.
• direction_name - list containing possible direction names ('N', 'E', 'S', 'W').
• index - Keeps current direction, by referencing index on both above lists.

constructor

Constructor method takes a string representing the initial direction. If non-existant direction is given ValueErorr is raised.

str()

Returns letter describing currently selected direction.

move_in_direction(coords)

Takes a pair representing coordinates. Returns new pair representing given coordinates after move in selected direction.

turn_right(), turn_left(), reverse()

Changes selected direction accordingly.