collition detection perfection

I have in my ‘downloaded Alice folder’ a world where the game ends when a motor boat hits a sailboat. Is that close to what you were looking for? If so, you might want to do a search for "motorboat demonstation.a2w".

I understand the concept of what your talking about, I had used "proximity to" instead of "in front of", but my real question/problem is.... Can you set up your statement as "if [object] is in front of[list/array of objects]". So that a character cannot move through multiple objects. Earlier when I tried this it made me choose an object from the list/array instead of all objects in the list/array

Any suggestions?