[ Image ] active: [ Boolean ]

>> media := Media new.
 >> a := Image new: ['a.png'].
 a active: True.
 
 a on: ['destination:'] do: {... }.
 a on: ['collision:'] do: {... }.
 a on: ['click:'] do: {... }.

Toggles events. If active, the image will receive events upon collisions, clicks or reaching its destination.