Anti-Blocking System for TD's

[Valtarian]

Hello, I need help creating an anti-blocking system.

Please view the video on youtube to see exactly what I'm talking about:

How would I be able to do that? does anyone have triggers for this algorithm?

Thanks in advance!

Another example would be this video:

 

[bajaist]

http://www.hiveworkshop.com/forums/jass-resources-412/snippet-ispathblocked-211198/

 

[Valtarian]

When I try to copy/paste the examples that they get onto my map, jasshelper finds multiple errors and the map is unable to be found in the war3 map directory when I start the game.

Is anyone familiar with the algorithm? Everyone that has established this system has not released it publicly, and it's quite annoying. It's a valuable asset to have in a TD.