Cannon
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This item is available without digilines or mesecons as it can be used
manually.

Contains a single inventory slot and shoots an item on command.
If the hopper mod is loaded, will take items from the top and sides, and
release them from the bottom.

Cannon rotation range:
side to side - +/-60 degrees (- = left, + = right)
down to up: -20 to 50 degrees (- = down, + = up)

To spawn entities from cannons include the lwcomponents_spawners mod.

Only the owner can dig or access the form of the locked version.

UI

Channel - digilines channel of cannon.
Hide - hides the form so the cannon can be used manually, double right click
		 any other face besides the rear to bring up the form.
Controller - digistuff game controller digilines channel.
Top 1 slot inventory - storage of items to shoot.
Bottom 32 slot inventory - player's inventory.

Manual control
Place some items in the single slot, and click the Hide button. On the
rear panel their are 4 gray buttons. Right clicking them turns the barrel
in that direction 10 degrees. aux + right click turns 1 degree. Clicking
the red button fires an item. To bring up the form again double right click
any other face besides the rear.

Digistuff game controller
Connect a game controller to the cannon with digilines cable. Enter the
game controller's channel in the Controller field of the cannon's form
(click Set). Your turning movements turn the cannon's barrel in the
direction the cannon is facing. The movements have an increased sensitivity
(x3) to try and keep the target in your view. Punching shoots an item.
The game controller updates every 0.2 seconds, so a quick punch may not
register. A locked cannon can only be controlled by it's owner with a game
controller.

Mesecons
	Shoots an item when power is turned on.

Digilines messages

"pitch <n>"
	Sets the pitch of the barrel. n should be between -20 to 50, and will
	be clipped to this range.
	eg. "pitch 22"

"rotation <n>"
	Sets the rotation of the barrel. n should be between -60 to 60, and will
	be clipped to this range.
	eg. "rotation 45"

"fire"
	Shoots an item.

*	Note: turning the barrel is animated and takes 0.1 seconds per 10
			degrees of movement. A fire command while moving is ignored.