mc_alpha_8

Uploading same file again to correct naming convention in github. We'll
figure this out eventually, haha.
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Biggest update so far. Spent a lot of time rethinking what will be
valuable to have in a prototype. This version gives the playtester cues
of what to do to get through the level. All objects now have scripts on
them with functions that trigger things (i.e. show a particular message
above this object on trigger enter and hide it on trigger exit). Also
player doesn't set values of other gameobjects, instead it calls a
method on the desired object's script. Feeling good about theprototype.
I also worked on making some art in illustrator, but Margaret said that
assets won't play nicely with github. For these edits, I chose to just
change colors when things happen.