CS 230 Fall 2009                                                Assignment 5 –Random Number Generation and MultiWay Branching                                           

100 points

Assigned: 10/06/2009

Due: 10/12/2009 at the start of class

Pre-Lab (Do Before Lab):  Bring materials – a way to save a copy for you and a copy to turn in. Plan out tasks, objects, and events needed for program.  Think about the main button’s pseudocode / flow chart.

Main Assignment:

The Food! Casino offers pseudo-slot machines in which the machine displays one of the following 5 images:

· Pizza – wins and pays 1.5 to 1 (or 3:2) if you prefer

· Choc chip cookies – wins and pays even money

· Coffee – loses

· Cake – loses

· Deli sandwich – loses

 The Casino has asked you to develop a program to produce a video version. You will need to get from the user the amount bet. You will then randomly generate one of the five images to display, and adjust the player’s current stake (amount of money).  As a simplifying assumption, all gamblers start with $100.00 of money. In addition to the betting capability, provide capabilities to reset (sets amount of money back to $100 and clears the bet text box) to start again, and to exit.

Please set the name of the project to something other than the default name (WindowsApplication1, …). It is helpful if you use a name that identifies you as well as the assignment (e.g. yourlastname assignment 5).

Background Knowledge:

• When the gambler loses, their amount of money is reduced by the amount of their bet
• When a gambler wins “even money”, their amount of money is increased by the amount of their bet
• When a gambler wins 1.5 to 1, the winnings are 1.5 times their bet (e.g. if they bet $10 and hit the pizza jackpot, their amount of money is increased by $15

Task Details:

• The images are provided in Blackboard. These public domain images have pretty obvious names.
• Include 5 picture boxes with the possible images – showing payoff for each. Click on the arrow on the picture box to import the image into the project, specify the image and that the “Size mode” should be “Zoom”.
• The picture box that displays the image generated by the slot machine when the gambler bets can be filled using an assignment from one of the other picture boxes. E.g.

slotPictureBox.Image = pizzaPictureBox.Image       (if those are the names you used)

• Don’t format the amount of money as currency as that will make conversion difficult (put a $ as a label in front of the textbox)
• We’re no longer going to assume that the user enters valid and reasonable values, so ensure that the bet entered is a number, and that it is legal – let’s assume that the bet has to be positive and no more than the amount of money they currently have.
• MAKE SURE YOUR PROGRAM WORKS! (i.e. gets the correct answers) - it doesn’t have to just run, it needs to run correctly!  Now that our program is branching, we need to try more examples to make sure that they work. Think, “what different possibilities need to be checked?” For each, determine the correct answer by hand and see if your program gets it!.

Miscellaneous:

• You must turn on Option Strict and Option Explicit
• Put YOUR NAME, e-mail address, date, and purpose of the program in comments at the beginning of the program. The purpose should be what the program is supposed to do, not the learning goals. Comments are indicated with a single quote (everything after the single quote is only for humans)
• You MUST include comments that explain your program in order to get full credit.
• Name all textboxes and buttons meaningfully, and use conventions for ending their names. Also, any labels referred to in code should also be named meaningfully.
• Make any textboxes that user should never enter a value in “Read Only” (or use labels instead!)
• Any variables that you declare should have meaningful names – descriptive of the data that they hold.
• Put your name on the form as a Label or as part of the form title.
• Try to use good user interface design. Make clear what user needs to do and what the answers mean.
• Any label controls used for results will be easier to find and click on etc if you turn the AutoSize property to false and size it yourself.

Hand in:

• Compressed (zipped) folder with your entire project containing all files related to the project, submitted to Blackboard.  Please name the zip file something along the lines of yournameAssignment5
• Print out of your code.