CSCI 261 - Programming Concepts (C++)

Fall 2016 - Assignment 03 - Rock, Paper, Scissors, Lizard, Spock

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This assignment is due by September 14, 2016 08:00am.

In this homework assignment you have the opportunity you will continue to use boolean expressions and conditional statements.

Before you Begin Coding

You may want to use your A02 solution as the starting point for this assignment or you can start from scratch. Alternatively if you feel you struggled with the last assignment and need a strong starting point, then we have provided a working solution to A02 that you may use as a starting point for this assignment - access the code here.

It's easy for the logic in this assignment to get out of control very quickly. We strongly recommend that you sit down with a pencil and paper to sketch the flow of the logic that you'll need. Use pseudocode, rough flowcharts, boxes, arrows, stickmen, or whatever means you need to create a clear structure for the logic of your Rock, Paper, Scissors, Lizard, Spock game.

After you have pseudocode for your solution, then create yourself an empty project. You should know how to do this by now.

RPSLS

Most of you have likely played the classic game Rock, Paper, Scissors but you can thank Sheldon for popularizing Rock, Paper, Scissors, Lizard, Spock. Feel free to practice a few games to fully understand what beats what. Below is the logic. An arrow points from X to Y following the "X beats Y" pattern. You will notice there are more ways to win or lose and a smaller possibility to tie.

Instructions

Your goal is to implement a Human-vs-Computer version of Rock, Paper, Scissors, Lizard, Spock. The Human Player will now enter a string of either "Rock" or "Paper" or "Scissors" or "Lizard" or "Spock".

The computer will generate a random number to make its decision. Specifically, generate a random number and then use (randNumGenerated % 5) to generate a 0 (Rock), 1 (Paper), 2 (Scissors), 3 (Lizard), or 4 (Spock) for the computer. Then assign "Rock", "Paper", "Scissors", "Lizard", or "Spock" to the computer's choice accordingly.

Once each player has made a decision, print out who wins or if the game is a tie.

Example outputs follows:

Welcome one and all to a round of Rock, Paper, Scissors, Lizard, Spock! (Enter your choice)
Player one: Rock
Computer: Lizard
Rock beats Lizard. You win!

Here is another example:

Welcome one and all to a round of Rock, Paper, Scissors, Lizard, Spock! (Enter your choice)
Player one: Rock
Computer: Spock
Spock beats Rock. Computer wins!

Here is a final example:

Welcome one and all to a round of Rock, Paper, Scissors, Lizard, Spock! (Enter your choice)
Player one: Scissors
Computer: Scissors
Scissors tie Scissors. Nobody wins.

The solution you submit should provide output like the last three example outputs.

Functional Requirements

Your solution must contiain the following features in your code:

You MUST store the Human and Computer choice as a string. When determining who wins, you MUST compare strings.
When assigning the computer's choice of Rock, Paper, Scissors, Lizard, Spock you MUST use a switch statement to determine the assignment.
You MUST use an if/else if/else structure to determine who wins the game. You may use as many else ifs as you need. You WILL lose points for using multiple if statements to determine who wins. If this is unclear, ask on Piazza.

Lastly a hint and some motivation. There are many more combinations that need to be checked in this version than in RPS. There are likewise many more ways to determine who wins a game. The logic operators will be very useful to simplify making comparisons to determine who wins.

For extra credit: You will receive 2 bonus points if your logic solution uses a single if, else if, and else structure to determine who wins. That is your solution would fit the following format and the output is always correct regardless of choices:

if( /* condition1 */ ) {
    // something happens
} else if( /* condition2 */ ) {
    // or something else happens
} else {
    // otherwise this happens
}

Grading Rubric

Your submission will be graded according to the following rubric.

Percentage	Requirement Description
15%	Labs completed
65%	Human vs. Computer RPSLS Game is playable and meets functional requirements outlined above
20%	(1) Comments used (2) Coding style followed (3) Appropriate variable names, constants, and data types used (4) Instructions followed (5) Assignment compiles
+10%	Extra Credit for using a single `if`, `else if`, and `else` structure in game logic

Submission

Always, always, ALWAYS update the header comments at the top of your main.cpp file. And if you ever get stuck, remember that there is LOTS of help available.

In summary, for homework due on Wednesday, September 14 follow these specific steps:

create a directory called week03.
within week03, create four subdirectories: Lab03A, Lab03B, Lab03C and A03.
within your new week03/Lab03A directory, copy in your main.cpp file from your Lab03A solution.
within your new week03/Lab03B directory, copy in your main.cpp file from your Lab03B solution.
within your new week03/Lab03C directory, copy in your main.cpp file from your Lab03C solution.
within your new week03/A03 directory, copy in your main.cpp file from your A03 solution.
compress the week03 directory (see Step 3 here for details).
submit the week03.zip file to Blackboard (see Steps 5-10 here for details).
after you submit, download the file and double check it contains all that you think it contains!

This assignment is due by September 14, 2016 08:00am.

Last Updated: 01/01/70 00:00

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