FlipD yields an orientation where X/Y are swapped.

FlipX yields an orientation where X is flipped.

FlipY yields an orientation where Y is flipped.

Identity yields the default orientation.

Left yields an orientation that turns left.

ParseOrientation parses an orientation from a string.

Right yields an orientation that turns right.

Left yields an orientation that turns left.

Delta represents a move between two pixel positions.

Orientation represents a transformation matrix, written as a right and a down vector.

Pos represents a pixel position, where X points right and Y points down.

Rect represents a rectangle.