Clue Game
Debugging vs Planning
• Debugging helps when you have a correct
algorithm/approach but an incorrect
implementation
• Debugging can show us the sequence of steps
and resulting values. This might help us design
a solution. But it is MUCH more efficient if we
start with a good approach (can avoid hours of
tedious debugging)
Flowchart Review
External event
Decision
Process
(statement)
Process
(function)
Display
Next Player
• Draw a flowchart* for what happens when the
Next Player button is pressed.
• Think about:
– What actions are common to both human and
computer players?
– How will you enforce game play rules?
– How will you ensure the human finishes their
turn? Hint: do NOT use a loop; this is event driven.
* draw a flowchart, do NOT just write in English/psuedocode. Flowchart is much easier to see
at a glance.
Getting Started
Next Player
Mouse pressed
Do flow for BOTH human and computer players
More detail is better!
I used ~29 flowchart symbols for these actions. You don’t need to try to
match mine. But if you have a flowchart with only 5 symbols, for example,
it likely does not contain enough detail.
My flowchart will be posted on piazza after both classes have done this inclass exercise. Your solution does NOT need to match the flowchart. But it
might help you avoid some common issues.
Today’s Process
• I will review each pair’s flowchart
• Sorry but I will not be able to listen to you
explain it 
• I will be talking quickly… only way to get to
ALL pairs in one class period
• Please do NOT ask about: homework grades,
git, attendance… I will barely have time to
look at flowcharts.