Entitykeys func pendulum

From Mod Wiki
freq variable
If set, overrides frequency basic on beam length and forces a specific frequency.
speed variable
the number of degrees each way the pendulum swings.
phase variable
the 0.0 to 1.0 offset in the cycle to start at.
dmg variable
damage to inflict when blocked.
snd_open sound
sound to play when opening.
snd_close sound
sound to play when closing.
snd_opened sound
looping sound for it's opened state.