Design and development help in C++ text game

[nemisis]

Hi Everyone I have am doing an object oriented C++ program and I have no idea as to how start it............. ....

This program prints a motion verb ( fly, run, swim, crawl, walk, or roll ), waits for a second,
then prints the name of an entity and repeats the verb (for example: fly ..1s.. pigeon fly!.. ).
The player has ½ second to type ‘y’ for yes or ‘n’ for no. (case insensitive)
- If the answer is correct, the player scores, if incorrect, or if there was no answer within the ½ second, the
player looses a point. When correct, all the motions the entity can perform are printed.

- When wrong, Ka..BOOM! is printed instead.

The default number of questions per player is 20, but the number can be changed by passing a different
number on the command line when starting the program.


At the end of the run the player’s score (and the score of previous players if there were any) is printed, the
question: “Another player (Y/N): “ is asked. The game exits if ‘n’ is typed.

The output should look something like this:-

Player 1 starting.
You must answer with the letter ‘y’ for YES, or ‘n’ for NO.
Press [Enter] when ready to start:

1 – fly pigeon fly!.. y
- I walk - I fly
2 – swim Wheelbarrow swim.. n
- I roll
3 – crawl ball crawl!..
Ka...BOOM!
4 – fly plane fly!.. y
- I roll - I fly.
5 – run boat run!.. n
- I roll.
6 – walk engine walk!..
Ka..BOOM!
7 – roll stone roll!.. y
- I roll.
. . .
16- crawl time crawl!.. y
- I crawl - I fly.
17- swim goose swim!.. n
Ka..BOOM!
18- run lizard run!.. y
- I run - I crawl.
19- run nose run.. y
- I run
20- fly goose fly!.. y
- fly - I walk – I run – I swim.

Player 1 *** score: 16 ***

Well done! Start another player (Y or N)? y

Player 2 starting
You must answer with the letter ‘y’ for YES, or ‘n’ for NO.
Press [Enter] when ready to start:

1 – crawl giraffe crawl!.. y
Ka..BOOM!

I am not that good at coding so i tried and made an overview of what the main driver should look like


main{
start_function( a,b)
{
check here wherther the player is old or new------>Connector

where a = value of yes or no, taken by cin>>
if the vaue is yes....
}
you are back in main >>>here

now start the for...while/Do...while[(condition for 1/2 min)& this shld take care of the initial 30 seconds also]
{
call function2(loop for 20 questions)
else if right answer add a point
Also call a function to print what the object does (for ball, it will be I ROLL)

keep adding ( + or -)points in a variable

End for loop of questions
}

display final score
ask to replay ------------>connector
}


But as said above I have no idea on the coding part of the whole program and would like some help here please

Also apart from this can anyone suggest a good compiler, I use Visual Basic C++ if thats good

[AdrianH]

Ok, you know the class syntax right? So generate a class for each object, inheriting from a single class. Use the verbs you stated (and I suggested) as function calls.

Let me know if you have any troubles.


Adrian

Let me know how things are going. You understand inheritance, corret?


Adrian

[nemisis]

srry i had 2 test today so couldnt do c++............ ...... anyways yes i know classes, Inheritance i dont know much but i can look it up in books i have and probably do it. I will start writing stuff tomorrow and post it so if i have problems u can help. Thanks dude.

[AdrianH]

srry i had 2 test today so couldnt do c++............ ...... anyways yes i know classes, Inheritance i dont know much but i can look it up in books i have and probably do it. I will start writing stuff tomorrow and post it so if i have problems u can help. Thanks dude.

No prob. Good luck on your tests.


Adrian

[weaknessforcats]

dog -- walks, eats, runs
cat -- walks, eats, runs
wolf -- walks, eats, runs
bear -- walks, eats, runs

To make this object-oriented you do not use dog, cat. wolf, or bear in your code.

Instead, you deveop a class Animal and derive the dog, cat, wolf and bear from Animal. This says that a dog IS-A a Animal. You then create dog, cat, wolf or bear objects and pass them to functions that have Animal* or Animal& arguments. That means the walks, eats, runs have to be Animal methods BUT if you are passing a dog object to the function and you ask for the runs method, you expect to execute dog::runs and not Animal::runs. So you make the Animal methods virtual.

The entire application would use Animal* or Animal& arguments. Nowhere would you see dog, cat, wolf bear except where the objects are created and even there this is often hidden a by factory class where you ask for a specific kind of animal and get a pointer to it:

Animal * dog = AnimalFactory.Create(I_WANT_A_DOG);
 

Unless you code this way, your program is not object-oriented.

[nemisis]

but i am not using only animals, hence a class of animals does no good, instead what if i make a class for objects which include fish, wheel, goose, stone, etc and another class which includes verbs like run, swim, roll, etc and then create another class functions which inherits both the classes objects and verbs.( i ll need help again in Inheritance)

[nemisis]

Ok, you know the class syntax right? So generate a class for each object, inheiriting from a single class. Use the verbs you stated (and I suggested) as function calls.

Let me know if you have any troubles.

no wait Adrian said something else above.......... ...... i ll work on it

[nemisis]

class object
{
 
private:
 
  char *verb1 = fly, *verb2 = walk, *verb3 = fall, *verb4= roll, *verb5 = crawl,  *verb6 = eat, *verb7= turn, *verb8= jump, *verb9= swim, *verb10 = run; 
 
public:
  void printdata();
 
};
 
void verb::printdata()
{
  cout<<       // how to randomly print the verbs??? //
 
}
 
 
 
class pigeon::private object
{
private:
  char *object1= pigeon;
 
public:
  void printdata();
  void functions();
};
 
 
void pigeon::printdata()
{
  cout<< *object1;
}
 
void pigeon::functions()
{
  verb::printdata();
  cout<< "I" << *verb1 << ", I " << *verb2 << endl;
}

So the printdata of pigeon class prints name and the functions of pigeon prints what the pigeon does( I fly, I walk) . This will be for all objects like time, river,cat,etc.

i wasnt sure how to create "words" without using arrary in char so used pointers(and i am pretty sure its somehow wrong)

anyways plz tell me what next

[nemisis]

ok srry will keep in mind next time i post a code

[AdrianH]

Ok nemis, you got a reasonable start with a few errors such as using the scope ‘verb’. I’m sure you didn’t mean that intentionally. Also, you don’t need to declare all the verbs in the base class, though it could be done depending on the design.

I would suggest using a base type that would check and display the types of things it does. And in addition, have a pure virtual function that would return a list (perhaps a vector) of things it can do.

In each class that inherits from the base class, I would have a vector class that would be initialized with the appropriate things it can do and implement the pure virtual function, returning that vector. Like this:

vector<char*> canDo;
 
canDo.push_back(“walk”);
canDo.push_back(“fly”);
 

NOTE: I am using a char* but this is because I am only pushing things that are literals (preallocated and will never be deallocated) so I will not have to worry about deleting them afterwards or someone deleting them on me. I would normally use a string object under other circumstances.

In your base class you can then iterate through the things it can do (calling the pure virtual function to get that information) when listing the types it uses or check if it can be done.

Does all of this make sense to you?

If you have any difficulties, let me know.


Adrian

[nemisis]

sorry i hardly got what u wrote, i have heard of vectors but dont know how and why is it used, also if i do create a base class then what would that class contain??