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CS 202: Computer Science II Assignment 5: Box of Chocolates "My mom always said life was like a box of chocolates. You never know what you're gonna get." - Forrest Gump Computer Science programming assignments are like a box of chocolates. You never know what you are gonna get and today you’re getting a Forrest Gump themed assignment! Very meta ya? In this assignment you will develop your skills with pointers further by exploring the use of inheritance and virtual functions as you create a 2D array of pointers to recreate Forrest Gump’s famous box of chocolates. When finished the program will replicate the concept of grabbing a full box of chocolates and selecting randomly and removing, or eating, one chocolate at a time. This process will be continued until you randomly select a location in the box that no longer has a chocolate. At which point you will stop eating chocolates. You can think of the box of chocolates as a 2D array where each position can hold a chocolate. There is an assortment of different types of chocolates that each give you a unique response that is printed to the screen. For example, whenever you take a mint flavored chocolate. Your character will wonder whether he is still eating chocolate or if he is brushing his teeth. This is as far as the program will go but really each of these chocolates could do a lot of other unique actions, but we want to keep it simple to focus on practicing the new topics which are virtuals and multi-dimensional dynamic arrays. There are 8 classes in the program. These are distributed as follows: First there is a superclass called chocolate. Next there are six other subclasses that are derived from that superclass. These represent different types, or flavors, of chocolates (class names: dark, milk, hazelnut, raspberry, white, and mint). Finally, there is one class that represents the box of chocolates. called, wait for it, boxOfChocolates. If we were not using Codegrade I would let you all choose creative flavor names, but that would make autograding it complicated so please stick to these classnames/flavors. In addition to the classes, there is the main function whose job is to read in a command line argument representing the seed of the program. This seed value is an integer that will be used to generate the RNG of the box, so each box of chocolate is unique in combination of flavors! Let’s look closer at the required functions for each of the classes. Class Name: chocolate Functions: One pure virtual function called whatamI() that can return a string. Nesxt is the 6 classes that inherit from chocolate. Note that each one will define the virtual function inherited from chocolate by returning as a string the name of that class. For example, class dark will return “dark” in whatamI. This will be useful when you need to figure out what the pointer is really pointing to so you can downcast to the correct class. In addition each class will have one unique function that just couts some predefine statements that are as follows: Class Name: dark Function: void feelBitter(){ cout < "dark="" chocolate:="" oof="" that="" was="" bitter!"="">< endl;="" }="" class="" name:="" milk="" function:="" void="" feelsoft(){="" cout="">< "milk="" chocolate:="" too="" soft,="" no="" chocolate="" taste!"="">< endl;="" }="" class="" name:="" hazelnut="" function:="" void="" getallergy(){="" cout="">< "hazelnut="" chocolate:="" i="" don't="" feel="" so="" good."="">< endl;="" }="" class="" name:="" raspberry="" function:="" void="" telljoke(){="" cout="">< "raspberry="" chocolate:="" i="" don't="" always="" raspberry,"="">< "="" but="" when="" i="" do,="" i="" raspberry="" pi"="">< endl;="" }="" class="" name:="" white="" function:="" void="" feelscammed(){="" cout="">< "white="" chocolate:="" is="" this="" even="" real="" chocolate?"="">< endl;="" }="" class="" name:="" mint="" function:="" void="" feelinquisitive(){="" cout="">< "mint="" chocolate:="" am="" i="" still="" eating="" chocolate"="">< "="" or="" am="" i="" brushing="" my="" teeth?"="">< endl;="" }="" finally="" let’s="" look="" at="" class="" boxofchocolates.="" this="" class="" requires="" a="" constructor,="" a="" destructor,="" and="" two="" public="" functions="" void="" fillbox()="" and="" bool="" takechocolate().="" it="" also="" contains="" three="" private="" variables:="" two="" integers="" boxlength="" and="" boxwidth="" and="" a="" pointer="" (***)="" of="" chocolate="" type="" named="" box.="" the="" first="" two="" variables="" obviously="" keep="" track="" of="" the="" dimension="" of="" the="" box="" and="" the="" pointer="" variable="" is="" used="" to="" dynamically="" allocate="" a="" 2d="" array="" of="" pointers="" via="" the="" constructor.="" as="" you="" might="" have="" guessed="" it,="" you="" de-="" allocate="" the="" box="" in="" the="" destructor.="" your="" constructor="" should="" have="" default="" parameters="" of="" 6="" for="" length="" and="" 5="" for="" width.="" but="" allow="" the="" user="" to="" pass="" those="" in="" that="" order="" if="" they="" wish="" to="" build="" different="" sized="" boxes.="" after="" allocating="" the="" box="" in="" the="" constructor="" and="" setting="" the="" two="" integers="" with="" the="" length="" and="" width="" passed="" in="" (or="" using="" the="" defgault),="" have="" the="" constructor="" call="" the="" fillbox="" function.="" the="" fillbox="" function’s="" job="" is="" to="" go="" through="" the="" entire="" array="" of="" pointers="" (so="" the="" box)="" and="" fill="" it="" randomly="" with="" chocolates="" of="" different="" flavors.="" so="" your="" randomness="" matches="" codegrade.="" here="" is="" what="" i="" did.="" i="" just="" called="" rand()="" in="" a="" switch="" statement="" using="" %="" 6="" for="" each="" of="" the="" flavors.="" the="" order="" of="" the="" cases="" from="" 0-5="" was="" dark,="" milk,="" hazelnut,="" raspberry,="" white,="" and="" mint.="" as="" long="" as="" you="" do="" this="" then="" your="" rng="" will="" match="" the="" codegrade’s="" rng="" for="" a="" given="" seed="" value.="" make="" sure="" the="" fillbox="" function="" fills="" the="" entire="" fox.="" finally="" the="" takechocolate="" function="" calls="" rand()="" twice="" to="" get="" first="" a="" length="" and="" then="" a="" width="" (make="" sure="" you="" match="" this="" order="" so="" rng="" matches="" codegrade)="" and="" then="" that="" is="" the="" spot="" that="" will="" be="" removed="" (chocolate="" taken)="" from="" the="" box.="" to="" do="" so="" you="" will="" need="" to="" use="" the="" whatami="" function="" to="" downcast="" the="" chocolate="" pointer="" to="" the="" right="" subclass,="" and="" then="" go="" ahead="" and="" call="" the="" unique="" function="" for="" each="" class="" so="" it="" couts/prints="" its="" statement="" accordingly.="" theoretically="" since="" all="" we="" are="" doing="" in="" each="" function="" is="" printing="" statements,="" you="" could="" have="" used="" polymorphism="" to="" do="" this="" all="" in="" a="" single="" function="" without="" casting,="" but="" then="" you="" wouldn’t="" practice="" downcasting.="" so="" just="" imagine="" the="" functions="" do="" more="" than="" cout="" stuff,="" so="" then="" you="" actually="" did="" need="" to="" use="" this="" system.="" if="" you="" don’t="" do="" it="" like="" that="" then="" you="" won’t="" get="" full="" points.="" after="" you="" run="" that="" function="" code,="" go="" ahead="" and="" delete="" de-allocate="" that="" spot="" in="" the="" array.="" don’t="" forget="" to="" set="" it="" to="" null="" to="" avoid="" dangling="" pointers!="" this="" function="" will="" return="" true="" if="" a="" chocolate="" is="" removed,="" otherwise="" it="" will="" return="" false="" if="" the="" location="" chosen="" by="" rng="" already="" had="" an="" empty/null="" spot="" meaning="" that="" a="" chocolate="" from="" that="" spot="" was="" already="" removed.="" your="" main="" function="" should="" then="" consist="" of="" printing="" out="" the="" forrest="" gump="" quote="" (see="" sample="" output,="" match="" it),="" running="" srand="" with="" the="" integer="" in="" the="" command="" line="" argument="" (i="" recommend="" using="" atoi="" to="" do="" the="" string-="">int conversion), allocating an object of boxOfChocolates, and then running an infinite loop that just calls box.takeChocolate() repeatedly until the given function returns false. The final product should show anywhere from removing all chocolates and printing a statement for each, to potentially removing only one chocolate and ending up picking the same spot again resulting in that single cout statement. Obviously it will trend to be more in the middle, but do share on Discord if you find seeds that have both extreme cases as we can all test them out! So that’s the assignment. And that’s all I have to say about that. Notes: -Make sure your code passes all codegrade tests if you want to receive full points. -Test your program by running it a few times with different seeds to make sure hit all potential cases. -Make sure your output is EXACTLY formatted like the given sample outputs or codegrade will eat your grade. -Comment your source code appropriately according to the stipulations on the rubric. -Your program must have 0 errors from 0 contexts, and 0 bytes in 0 blocks definitely, indirectly, or possibly lost in valgrind. That means NO MEMORY LEAKS allowed. Here is some sample output. Note I added an extra check for when no argument is passed to avoid a segfault. I recommend you do the same, but we will not check for that with codegrade as it’s not the focus of the assignment.. Sample Output to Terminal (note the different seeds I feed, they should match yours): AST05$ g++ main.cpp AST05$ ./a.out Enter Seed as argument: ./a.out 42 AST05$ ./a.out 42 "My mom always said life was like a box of chocolates. You never know what you're gonna get." - Forrest Gump White Chocolate: Is this even real chocolate? Dark Chocolate: oof that was bitter! Dark Chocolate: oof that was bitter! Dark Chocolate: oof that was bitter! Mint Chocolate: Am I still eating chocolate or am I brushing my teeth? Dark Chocolate: oof that was bitter! Raspberry Chocolate: I don't always Raspberry, but when I do, I Raspberry Pi White Chocolate: Is this even real chocolate? Mint Chocolate: Am I still eating chocolate or am I brushing my teeth? Mint Chocolate: Am I still eating chocolate or am I brushing my teeth? AST05$ ./a.out 7 "My mom always said life was like a box of chocolates. You never know what you're gonna get." - Forrest Gump Dark Chocolate: oof that was bitter! Mint Chocolate: Am I still eating