Add coordinates to a position

(2,3)
|> add { x = 1, y = 0}
--> (3,3)

Add coordinates to a position

{ x = 1, y = 0 }
|> addTo (2,3)
--> (3,3)

Create the coordinates to the new location using the current position as the center.

(1,1)
|> coordTo (1,2)
--> { x = 0, y = 1 }

Generate a position inside a grid.

given the width and height in in Int, returns a point with values in (-1,1)