Expect new tutorials soon

[Revan]

I don't really have anything to do today, I'll probably make about 5 tutorials... this place will also serve to me as a reference for what I want to do when, the list that follows is most likely the order in which the tutorials will be made.

int, double, and float variable types

char and string variable types

cin

//comments

operators to variables, +=, -=, ++, --, *=, etc

boolean expressions

'if' statements

'switch' statements

'while' loops

'do while' loops

'for' loops

function usage (math.h)

function creation

function -- parameters/return types

function -- reference variables


That's a start, I'll flesh out this list later...

[m4t1a5]

Cool, ill need help with the functions so i hope they are done soon.... when is the first 1 coming out?

[kp3]

When will you explain classes to retards like me?

[Revan]

That could take a long time... however, to put it simply, a class is an object. Every object in the world has properties... for example... lets say you have a class called 'door', well a door object is likely to have a property called 'open' which would say whether or not the door was open. Now if you think about it, in real life if you want to open/close a door, you need to push it, you can't just go and say "ok you're open now", same with C++, you would make the 'door' property 'private', meaning that only the code of that class can change that variable, through a function.

Functions are also in classes, so for 'door', you may have something such as:
void open();
and
void close();
which would change the 'open' variable to reflect the current state of the door.


That's the basic concept.

[kp3]

Makes sense.

Classes are in .h files right?

[Revan]

Errr yes and no. Class declarations... ie:
class door
{
public:
Door();
void open();
void close();
void printState();
private:
bool isOpen;
};

Is in the .h file (not the ';' at the end of the brace for a class, you won't find one after any other brace but these)

You would then make a .cpp file with the same name as the .h one (but without the same extension of course) and that would contain:
Door::Door()
{
isOpen = false;
}
void Door::open()
{
isOpen = true;
}
void Door::close()
{
isOpen = false;
}
void Door::printState()
{
cout << "I am: " << (isOpen ? "open" : "closed") << endl;
}

Or at least I think thats where the Door:: goes... it's 12am so I may not be right however I do think that is correct. Give it a try, see if it works.

Take note of the first function, that is the constructor, it sets up your class when you make it, you can have parameters, however they aren't needed. In this case, the constructor makes certain that 'isOpen' contains a value so that if it is called before you try and open or close the door, it has something to tell you. I chose to make it closed because that is the normal state of a door.

Finally, your main could look something like this....

Door d;
d.printState();
d.open();
d.printState();
d.close();
d.printState();

Which would tell you that it's closed, then opened, then closed again.

Happy coding.

[Revan]

New tutorials by this weekend... I've got my recorder open and would be recording at this moment were it not for the new mythbusters....

[Revan]

Unfortunately now it's a bit late... so I'll probably record the tutorial(s) tomorrow... the next thing of course is variables...

[Revan]

I recorded two tutorials already tonight and I will be making a third in a short while... they probably won't be uploaded till Friday... but I wanted to make sure you all know that I ain't dead and neither is this tutorial series.

[Revan]

Mk, no promises... but I'll see what I can do to get the tutorials uploaded some time before friday....

[Revan]

Files are now compressed... hope that I find time enough to upload....

[Revan]

Well they've been uploaded for a couple of days however revver is being dumb about copyright crap again... it should be sorted soon... hopefully.. I just hope their staff didn't take off for the holiday.