Cannons

Cannons are objects, but their projectiles are sprites

basic Cannon object

0 y x 7 -- this is a cannon facing up right
0 y x 6 -- this is a cannon facing up left

projectiles

bobomb fired to the right: 1 a3 x y
bobomb fired to the left: 1 a2 x y

cannonballs:
1 93 x y - 8-way rotating cannon
1 96 x y - cannonball generator (left)
1 97 x y - giant cannonball generator (left)
1 98 x y - cannonball generator (up-left)
1 99 x y - cannonball generator (up-right)
1 9a x y - cannonball generator (down-left)
1 9b x y - cannonball generator (down-right)
1 9c x y - cannonball generator (up-left)
1 9d x y - cannonball generator (up-right)
1 9e x y - cannonball generator (down-left)
1 9f x y - cannonball generator (down-right)
1 a0 x y - cannonball generator (right)
1 a1 x y - giant cannonball generator (right)