Updated to work on the current version of the game by JackCarterSmith

Fixed a bug that made some points not render - derp

Fixed some rendering stuff.

Added beamAlpha([index], alpha) with 0<=alpha<=255

Fixed some Anchor entity bugs.

Fixed last update derp.

Added BeamVisible([id], player, active)

Fixed a minor bug with the last update.

After some testing, I've discovered that you should not create the entity and put a point on it in the same E2 execution.

(Lua: forgot to check if the entity was valid before doing entity:LocalToWorld)

Managed to make the last function work.

Can now be used like so:

beamPoint( [beam_id ,] point_id, entity parent_entity [ ,vector local_pos] )

This allows you to 'parent' a point of the beam [beam_id] to an entity, with a position [local_pos] (or not) local to this entity.

An example of its usage could be parenting two points to two holgrams and then moving the holograms, this effectively reduces the netgraph [in], instead of constantly setting the positions of the points.

Attempt to add function beamPoint(index, entity parent[, vector local_pos])