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{\bf  Intro Graphics}  \hfill \today \hrule
{\bf G. Farin }\\




\centerline{\bf Programming Assignment \# 1}

\centerline {\it due: 2-13 }
 \centerline{\it   percent of your your grade: 12.5}

 \vspace{2cm}

Compose a scene consisting of a traveling ``star" and a ``black
hole."

The star (a disc $\approx \frac{1}{20}$ of the extent of your
window) should start at a random position and move in a random
direction. Once it hits a window boundary, it will reflect off and
continue. As it approaches the boundary, its color will change to
bright orange and, after the bounce, return to its original color.

Somewhere inside your window, create a circle of radius $\approx
\frac{1}{5}$ of the extent of the window (the ``black hole"). This
black hole should be colored slightly different from your window
background color. If the star hits the perimeter of the black hole,
it will start spiraling inward towards the center, gradually
changing its color toward your window background color. After
hitting the black hole center, it will randomly reappear in the
window (again with the original color) and continue to travel.

Team work / extra credit: Make the black hole move, but at a lesser
speed than the star. Or: make the star randomly reflect off the
black hole sometimes and be sucked in other times.




















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