Put them in a Family, add a Family instance variable ID, and for each Sprite type have a different ID (1, 2, etc), and check the pressed one's ID is the same as the displayed one. I think that will work.
edit: after doing this I thought you might just use the Nickname plugin..
2 families, a little more setup (2 lines per object) but scales better
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Last edited by codah
on Thu Feb 26, 2015 9:13 am, edited 1 time in total.