Spotlight Tower by Drew 'BZ' Davidson <drew@interpath.com>

A spotlight tower.  When a player is in the tower, he emits a
spotlight.  Great for prison models or something. :-)  Perhaps
some cool CTF model?

ENTITIES:

func_spotlight

WHAT TO DO:

Put a func_spotlight entity in your map, and compile spotlite.qc in 
your progs code.  There are no changes to any other QuakeC files.

When a player is within 150 units of that entity, they emit the 
spotlight.  The spotlight checks once per half second for players 
in/out of range and turns itself on/off.

OPTIONS/NOTES:

No options.

The spotlight is not a physically correct light.  It doesn't
light up all points from the player to the end point, but rather
only lights up the end point. Oh well.  This could be improved
by making more light entities.

The spotlight has a small dot in it (bubble sprite).  Is there
any way to make an entity emit light but not have a model?
Could include a null sprite but that would require client-side
changes.

Edit the code to change the spotlight active range, or change
EF_DIMLIGHT to EF_BRIGHTLIGHT to make spotlight brighter (too
bright IMHO).  Or change EF_DIMLIGHT to EF_BRIGHTFIELD to make
some weird yellow particle field spotlight.  :-)