CSC 160 Fall 2006 - Homework 9
Assigned Dec 5, due SUNDAY Dec 17
Note: Any assignment received after Sunday 12/17 at 11:59pm will
receive a grade of zero!
Read the following directions for how to
submit your assignments.
Directions
Read these directions carefully before starting the
assignment.
The assignment may be done alone or in pairs using the
ideas in the Pair
Programming article.
You cannot pair up
with the
same person more than once during the semester.
Whenever defining a conditional Scheme function, you
must
show all eight steps of the Design Recipe introduced in class on Thursday 11/30.
Whenever defining any other Scheme function, you must
show all six steps of the Design Recipe introduced in class on Thursday 10/5.
If you do not fully understand any of the directions above or the
questions below, please e-mail
me as soon as possible.
The Assignment
Develop an animation that displays a circle that switches colors
between green, yellow, and red every second.
For extra credit (20 points), have 3 separate circles in the
animation, one that
is red at the appropriate time, one that is yellow at the appropriate time,
and the other that is green at the appropriate time. (Hint: When the light
is not red, you should have the outline of a white circle. When the light
is red, you should have a solid red circle.)
| Grading |
Overall |
Purposes |
Contracts |
Data Analysis |
Examples |
Skeletons |
Template |
Definitions |
Testing |
| Explain the world |
/5 |
| Function: next-model |
/50 |
/3 |
/3 |
/2 |
/3 |
/3 |
/3 |
/30 |
/3 |
| Function: next-view |
/30 |
/3 |
/3 |
-- |
/3 |
/3 |
-- |
/15 |
/3 |
| Calling big-bang |
/5 |
| Calling on-redraw |
/5 |
| Calling on-tick-event |
/5 |
| Extra Credit |
/20 |
Last Modified: 12/10/06