Ship
latitude type: real
range: (-90.0 90.0)
longitude type: real
range: (-180.0 180.0)
x-velocity type: real
y-velocity type: real
speed type: real
if-needed: ship-speed-fn
If we wish to have an action speedup that doubles the velocities of the ship, it will have to be separate from the frame definition, since it is not associated with a slot.