The toxy lib is discontinued in Pd-extended 0.43. Tried to find an alternative, asked on the Pd forum. No solution so far. I explored gem for GUI purposes, but this introduces even more dependencies. Data-structures seem an option at first sight, but can not provide large reactive area's (only the center pixel of an object is reactive).
Are you in edit mode in that video? If so, data structures will react
accordingly.In run mode there is a way to make the entire polygon reactive (instead
of just a little 5x5 pixel "hot spot"), but it's hacky.
It can happen that data structures (tcl/tk) can be a bit heavy to
manipulate, and will cause dropouts.
If it's in edit mode, the "whole polygon" will create trouble when
clicking it to position an object, no? unless that's not a data structure,
but a canvas with a small selection square.