Glue - by The Quietust (Andy Shawaluk)

The QuakeLab - http://www.planetquake.com/QuakeLab

TEXTURES: CLIP, *TELEPORT (or glue texture) [AFLOOR1_3]

ENTITIES: func_wall [light, info_player_start]

WHAT TO DO: First make a brush and give it a glue texture.  This will show
        that glue is here.  Now make a smaller brush whose top is at
        least 3 units above the ground.  This will be the glue itself.
        Give this smaller brush the CLIP texture.  Tie both brushes you
        made to a func_wall entity.  When a player touches this glue,
        he (or she) will be totally immobilized, unable to move or even
        jump.  Explosions will remove the player from the glue.

OPTIONS/NOTES: This form of glue can only be used on floors.  If used on
        walls, the player will only stick while moving towards the glue.
        The normal brush is required in the func_wall or QBSP will give an
        error message.  Any solid entity can be used instead of func_wall.
