How to do 2D shadow casting in Java?

Question

I\'m currently trying to implement a 2D shadow casting method in Java by following this tutorial: http://ncase.me/sight-and-light/

I want to stick to Line2D and Poly

Answer 1

I adopted a different approach for my game: instead of determining the visible regions, I first define a circular region surrounding the viewpoint as visible and then I cut the non visible regions (the shadows).

A short description of my approach is available here:

http://cartridgeslot0.blogspot.com.es/2014/07/improving-shadowcaster-short-tutorial.html

Also, you can find this approach combined with a tile map and a 2D camera here:

http://cartridgeslot0.blogspot.com.es/2014/07/managing-2d-camera.html