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CPT109 C Programming and Software Engineering 1 – ASSESSMENT 2

Assessment Overview

This assessment aims to test your ability to design a modular program which makes use of files and structures. Application of the software development process (SDP) is also under assessment; the five steps required for your SDP report are:

1. Problem specification: formulate the problem.

2. Analysis: determine the inputs, outputs, variables, etc

3. Algorithm Design: define the list of steps (the algorithm) needed to solve the problem.

4. Implementation: the C code has to be submitted as a separate file (.c). Just indicate here the name of the file. DO NOT paste your code into your report.

5. Testing: explain how you have tested and verified your C program.

Things to note:

1. Submit only what is required.

2. Include clear comments in your code to make it easy to understand.

3. Use the C90 standard.

4. ALL programs MUST compile and run in Visual Studio 2013.

Exercise

The game of hangman is a popular children’s word guessing game aimed at improving spelling and general knowledge. A secret word is chosen (usually related to a chosen topic e.g. a country or a fruit or vegetable) and the player tries to work out what the word is by guessing letters. Each time a player correctly guesses a letter in the word, then the letters should be filled in at their appropriate location in the word (see below). Note that the letters can be guessed in any order. If the player guesses a letter incorrectly, then the hangman’s gallows (See Figure 1a) are constructed one line at a time for each wrong letter till the player dies after 8 wrong guesses. A possible text-based version of the hangman’s gallows is shown in Figure 1b. Example game:

The secret word should be either entered by a second user or randomly selected by the program from a file of words provided. Program users should create a unique password protected account which will record their win/lose record, and which can be viewed.

Program Requirements

● Allow users to create an account by selecting a username and password. The account should be saved in a file (unique to each user), which will contain a structure with the password and the win/lose history.

● Once a user is logged in they should be able to:

Start a new game

Review their game history

Clear their game history

Logout

● On starting a new game, there should be a choice either to play with a random secret word chosen from a data file (the filename should be provided) or for another user to enter a secret word.

● The player should guess letter one at a time. After each guess either the appropriate blank or blanks of the secret word are filled, or the next section of the picture is included, and both the current word state and the current hangman picture are displayed.

● If the player completes the word before the hangman picture is complete, they win, if the picture is complete first then they lose.

● All variables used must be local.

Programming Suggestions/Ideas

The following points are only to provide you with ideas of how to implement the required functionality. They do not represent the “best” or only ways to implement the functions.

● All player accounts are structure variables and will be stored in a unique file i.e. one file for each player account. Create new accounts by creating a new file with the username selected. The login process can be achieved by trying to open a file, if successful the structure stored in the file can be copied into the program memory. When the player logs out only this one structure needs to be written back to the file.

● Try to create your own functions to simplify the programming task, for example use one function to draw the hangman picture.

● Consider how your program should function when there is an invalid input.

● You can design your own figure (it is your interpretation of the game).

● Consider the playability, how can you make the user interaction more interesting for example add your own rule such as do not allow vowel letters (a, e, i, o ,u), or maybe only 1 vowel letter is allowed. You may wish to display a list of the wrongly guessed letters as a reminder to the player

Submission

Your assessment should be submitted electronically through the Learning Mall Online (LMO). Feedback and your grade will also be given through LMO.

Software Development Process (SDP) report (5 steps) named: studentID_A2.pdf

Sourcecode (.c) file named: studentID_A2.c

Submission should be a single compressed file containing 2 files:

Marking

Please refer to the file “CPT109 Marking Guidelines for Assignment 2” on Learning Mall for details on marking descriptions.

You are responsible for ensuring that your C code will run in Visual Studio 2013. If it does not without documentary explanation you may get a 0 mark for your implementation.

You will receive a 5% deduction for incorrectly named files in your submission.

Important notes:

University late submission policy will be applied.

University Academic Integrity policy will be applied rigorously. Plagiarism and collusion will not be tolerated.

You can find information relating to both of these in ebridge.