Ray casting

Okay, that commented code does not work.

ay and by are not being given correct values.

In last line why u wrote .size()<=2 I would have written .size()>0 I can't understand the logic between this 2. Plz explain it also

To be unobstructed, the ray is limited to only touch the two actors. It definitely must be less than or equal to two to be truthfully unobstructed. Whether the value used is two or zero is determined by the types of the two actors. If they are of "intersecting" type checked for, use 2. If only one of the two actors is of that type, use 1. If neither is on that type, use 0.