1. Q4 Day 19 COLQ 201 Multiagent modeling Harry Howard Tulane University

2. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University2 Course organization  http://www.tulane.edu/~howard/Multiagent/ http://www.tulane.edu/~howard/Multiagent/

3. Black hole bounce

4. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University4 Create the black hole to draw-black-hole ask patches with [abs pxcor < 5 and abs pycor < 5] [set pcolor yellow] ;; i created a yellow box in the center of the billiard table (black hole) end

5. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University5 Bounce to bounce if abs [pxcor] of patch-ahead 0.1 < 5 and abs [pycor] of patch-ahead 0.1 < 5 [ set heading (random(145)) ] ;; the procedure was changed, and if a ball enters the box in the center (black hole), the balls heading changes to a new number between 1 and 145 end

6. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University6 Variations  Go through everyone's.

7. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University7 Q5  In Tutorial #3: Procedures, right before "What's next?" at the end there are the following questions:  Finally, what other slider could you add to vary how often grass grows back?  Are there rules you can add to the movement of the turtles or to the newly hatched turtles that happen only at certain times?  Q5: Add code to answer both questions. Document your additions by comments alongside the code, AS WELL AS in the Information tab. (so you have to figure out how it works.)  The best way to do this is to follow the instructions step by step, so you understand everything!  Name your program: Q5-YourLastName-Tut3.  Drop it into the dropbox by class on Wednesday, March 3.

8. 26-Feb-2010COLQ 201, Prof. Howard, Tulane University8 Next time  Q5 due by class on Wed.  Evolutionary biology: social factors