How to pass keyboard control to new class function?

[albinopapa]

First off, if you are going to have a Keyboard object in the Control class, then you don't have to pass a Keyboard & to KeyPress. If keyOb is suppose to be a reference to the one stored in MainWindow, then you'd need to make keyOb a Keyboard & and initialize it using the Control constructor.

In the Control.h file:

Code: Select all

Control( Keyboard & Kbd );


private:
     Keyboard &kbd;

In the Control.cpp file

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Control( Keyboard &Kbd )
     :
     kbd(Kbd)
{
}

If you aren't trying to hold a reference, then take the Keyboard keyOb out of Control, and just pass it in to the KeyPress function and use it.

Not sure if this is what you are planning, but

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void Control::GetDeets(int PlayerLocX, int PlayerLocY, int GrabPlayerNumber)
{
	int CoPlayerX = PlayerLocX;
	int CoPlayerY = PlayerLocY;
	int CoPlayerNum = GrabPlayerNumber;
}

Just as a warning, you are declaring new variables here, not assigning new values to the members of Control.

[Ducky]

Now I'm not 100% clear about what your problem is though. You say: "I'm not quite grasping when and where (.cpp/.h?) to create objects to access things". Maybe there's a little disconnect in terminology.

I'm sure there's a disconnect with a lot of things I feel honored to speak to the man himself Must have heard your voice for over 30 hours now, love the comedic relief, thanks for taking time to teach others, I've felt very welcomed by the programming world, I think there is something that draws similar characters to this interest. no homo

What I was getting lost on was essentially what albinopapa touched on with:

First off, if you are going to have a Keyboard object in the Control class, then you don't have to pass a Keyboard & to KeyPress. If keyOb is suppose to be a reference to the one stored in MainWindow, then you'd need to make keyOb a Keyboard & and initialize it using the Control constructor.

I was confused as to how to allow a new class access to the Keyboard, what the role of the constructor was, and if I could declare a Graphics object in the header file of another class to access PutPixel.
I had tried sending variables along with graphics& reference into a new class's constructor but came up against errors. I'm assuming the constructor only accepts certain arguments? (sorry if I'm butchering the terminology).

I'm going to try implimenting albinopapa's advice now, allowing access by passing graphics pointer in the constructor and then declaring a graphics object to access PutPixel.. at least that's what I think is being suggested haha, soon to find out.

Just as a warning, you are declaring new variables here, not assigning new values to the members of Control.

Oops, thanks for pointing that out it was pushing 5am when I hastily tackled that

I'm in the UK (GMT) hence the delayed response.

[chili]

Yeah, you shouldn't declare a new Graphics object anywhere. Consider, a graphics object represents the screen (the client area of your application's window). There is only one screen, so there should only ever be one graphics object. You pass references to that graphics object around to any other objects that need to access its services.

The role of the constructor is to initialize the object. Is there anything in particular that you are unclear on in that regard?