we have created 2 test cases.

1. pinball_2balls folder with 2 balls circulating in a pinball game (modified from previous version)
2. 3dballexit_pinball folder contains 3 balls with an exit for one of the balls.



Follow the following steps to run:

1. 
- open first folder (pinball_2balls) and open the blend file or open blender and open the blend file. 
- give run script
- then obeserve the 3D visualization 

2.
- open second folder (3dballexit_pinball) and open the blend file or open blender and open the blend file. 
- give run script
- then obeserve the 3D visualization 


PROJECT REPORT is included in the same folder.