I am new to Drools and have some questions. I am working on creating rules which detects customers in departments in a store.

My model is as below: 

Customer : Id, Point (x,y)

Department : Id, Rectangle

CustomerEvent

I currently have customers represented with x,y location or a point and a department is represented by rectangle. 

1.) How do I write a rule to detect if a customer is in a rectangle? 

2.) If a customer changes location within a department at least 2 times, trigger an event. How do I write a rule to detect if the customer is in a department and has changed location two times?

Please let me know.

Thanks!