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objDriftOpts(buf, <count>, <use animation>, <start pattern>,
<end pattern>, <pattern time>, <yspeed>,
<period>, <amplitude>, <use drift>, 3, <driftspeed>,
x, y, x', y')
buf = obj buffer to work with
<count> = number of copies of our drift file to show.
<use animation> = whether to animate
<start pattern> = first consequitive frame g00 pattern to show,
or only pattern to show if use animation false.
<end pattern> = last consequitive frame g00 pattern to show
<pattern time> = Time it takes to display full sequence.
yspeed = Time it takes to go from the top of the screen to the
bottom of the screen
<period> = Period of a sine wave added to our position.
When 0, no sine wave is added.
<amplitude> = Amplitude of the sine wave. When 0, no sine wave
is added. 1 is the largest possible amplitude. I am not
really sure about units here.
<use drift> = A boolean flag on whether to add a semi-random drift to the
<drift pattern> = Defines how drift is applied.
0 = ?
2 =
3 = Steady leftwards movement?
4 = Steady leftwards movement
<driftspeed> = Time in milliseconds that it takes to move leftwards across the screen.
x, y, x', y' = Can all be -1 to specify the full screen.
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