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CS2335/2335_lemmings/Design_Changes_P4.txt

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+NOTE:  The current design is UML documented in the currentDesign.mdl file
+           which is there for your viewing pleasure with Rational Rose.
+
+1. Physics Engine
+PMD changes once again, however, plenty of new classes to see.  Primarily, this
+is the changing of the Particle class.  Rather than have a single Particle class,
+multiple classes were created extending Particle.  These classes work to have
+different killFactors, that is, how long/what will kill the particles.  For example,
+Blood and Water particles have a shorter life span than Dirt Particles.  Also, 
+this simplified the actual programming as they could simply chain constructor
+calls to PrettySprite and each have their own .png associated with the Particle type.
+
+Also, you may notice the Vector class was renamed to PhysicsVector.  This is due to
+PMD being stupid.  PMD kept saying that Vector should be declared as List.  Obviously,
+PMD was looking at the wrong class.  This was resolved using said method.
+
+2. Networking
+Huge changes here, sort of.  Most of the additions to networking were made for the 
+Split Screen Multiplayer Game.  However, time constraints prevented their full 
+implementation.  As such, these specific changes will not be addressed as they are
+simply messages sent back and forth that have absolutely no effect other than hogging
+network bandwidth.
+
+3. Lemming Jobs
+The lemming jobs were changed slightly.  For one, the feature of being able to change
+the class of the lemmings mid-air was removed for some classes, see assignJobToLemming().
+In addition, Bugs with many of the jobs were corrected: particularly that nasty Lemming 
+stuck on Blocker Bug. Effects were added to the jobs as well, when digging, dirt is shot 
+out and when gliding the jet back releases flames.  Pretty Cool, eh?  
+
+4. Level Stuff
+A Fake Exit was added.  This shoots the lemming up into the air if he touches it.
+This is known as FlingTrap.java.  Nothing fancy to say here, simply shoots a lemming
+into the air (probably Killing the poor guy) when the lemming touches it.  In code, this
+simply means settings the J component of the velocity vector to something fancy.
+
+5. JUnit
+JUnit classes were removed for this submission.  No point in having them waste space.
+
+6. Changed Variables
+There are many variables with changes here and there due to Checkstyle/PMD.  These are
+not really considered design changes, just thought it should be noted.