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, looks like you have a general flow of your programme done. Now can you identify the objects you require?


Adrian

[weaknessforcats]

Pay attention to what AdrianH says. Your outline is not object-oriented. It is object-based. For it to be object-oriented, you will a) need to identify your entities, b) identify their abilites, c) construct a class hierarchy, d) use virtual functions.

Object-based programming is perfectly OK but should not be called object-oriented just becuse it has a class or a struct in it.

[nemisis]

ok so how do i go abt it, its too complicated for me to code it!!!!!

[nemisis]

btw what makes my program object oriented then........... .... i havent written the game code still as i am poor at coding but i am just curious as to what would make the overview Object Oriented , i mean what changes???

[AdrianH]

ok so how do i go abt it, its too complicated for me to code it!!!!!

Relax. First you don't code, you design.

When you design, think about what objects you need, you look at the requirements and start picking out nouns (things). When you have your nouns, see if any are of a common group. I.e.

dog, cat, wolf, bear -- These are all types of animals
corola, versa, echo, matrix -- These are all types of cars

Then once you have your objects, start picking out the related verbs (actions) for a noun.

dog -- walks, eats, runs
cat -- walks, eats, runs
wolf -- walks, eats, runs
bear -- walks, eats, runs
thus all animals (at least in this set) walks, eats, runs so can be used as function names.

You can even have questions too for things that may be different between them:

.
       can get      has how 
      newspaper?   many legs?
dog      yes          4
cat       no          4
wolf      no          4
bear      no          4

Given your description, can you state some objects, group them and make up some verbs/questions for them?


Adrian

[nemisis]

Given your description, can you state some objects, group them and make up some verbs/questions for them?


Adrian

ok lets c


object- verbs

pigeon- fly, walk
wheelbarrow- roll
ball- roll, fall
stone- fall, roll
lizard -crawl, eat
wheels- roll, turn
cat- jump, walk, eat, swim
plane- fly, roll
time- crawl, fly
river- run
crocodile- crawl, swim, roll
fish- swim

each object has different functions some are common, this should give the output as required if designed for random printing of verbs as described in my very first post, what say???

[AdrianH]

ok lets c


object- verbs

pigeon- fly, walk
wheelbarrow- roll
ball- roll, fall
stone- fall, roll
lizard -crawl, eat
wheels- roll, turn
cat- jump, walk, eat, swim
plane- fly, roll
time- crawl, fly
river- run
crocodile- crawl, swim, roll
fish- swim

each object has different functions some are common, this should give the output as required if designed for random printing of verbs as described in my very first post, what say???

That's good. You will also need to have it able to display what it can do as well.

Sorry, but I need to go and will not be back for pretty much the rest of the day. If Weaknessforcat is around, s/he may be able to help you as s/he is a quite competent C++ programmer with OOP experience.

I’ll look in on your progress later. Good luck.


Adrian

[nemisis]

ok thanks for everything till now, but i still have to finish it in 2 days before 25th May, so will look forward for help and fast

[AdrianH]

ok thanks for everything till now, but i still have to finish it in 2 days before 25th May, so will look forward for help and fast

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.


Adrian

[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:

[code=cpp]
Animal * dog = AnimalFactory.C reate(I_WANT_A_ DOG);
[/code]


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)