Module eschers::canvas

The canvas that we will draw on

Structs

Box	A Box represents the area and position that we will draw in.

Functions

flip_box	Flip box vertically
identity	The identity function for Box
split_box_horizontally	Create two boxes above each other that together make up the original box.
split_box_vertically	Create two boxes beside each other that together make up the original box.
toss_box	Toss box
turn_box	Rotate box through 90 degrees