Polishing Collision Physics:

Fix #1: Made a delay between when floor is destroyed from underneath falling column, and when falling column falls. Allows explosions to quickly sneak under the column before it falls. Fix #2: Made it so angled tiles no longer [squeeze / wedge] you through solid geometry. I've had this problem for 9 months. (Ever since I implemented angled tiles). But only until maybe 2 months did I realized the basic theory for solving it. And I am getting close to where I need to polish out all of those little glitches I know about.