用于群组模拟的.NET库/书籍

I've been tasked with creating a simulation of people moving around. It could be a bunch of people walking through a restaurant or exiting a school. Searching around, I've found a bunch A* related stuff which is fine for one person but I will have a bunch. Is there a standard library people use for this stuff? Or a kind of algorithm I should look at? Or a book that will get me going?I've been tasked with creating a simulation of