SDL C++ Handle Mouse Motions and clicks?

[DecoratorFawn82]

Hello! I have a game that I'm trying to create but I don't really know how to handle mouse motions yet. I have read the LazyFoo.net lesson 9. And I have too searched around on Google but haven't find any good article for what I want to do

But what I want is to check if the mouse is OVER the START button of the game and if the user has pressed the LEFT mouse button the game should START.

This works when I am hovering over the area there I want the mouse to do something:

   else if (event.type == SDL_MOUSEMOTION)
            {
                 if (event.motion.x == 0)
                   {
                       quit = true;
                   }
            }

I do not know how to check this. The START and QUIT button is in the middle of the screen and I don't know how to position the mouse there either. Thanks for help!

[SirPrattlepod]

What you probably want to do is create a class Region that's a rectangle, either using the top-left and lower-right coordinates to define the rectangular region, or the top-left and width, height. You'd have a member function isInRegion(unsigned x, unsigned y) and pass the current mouse position to that function which will return true if the given coordinate is within the region/rectangle. Buttons could then be a subclass of Region if they do more than a rectangle does.

[DecoratorFawn82]

So what you mean I have to do is a SDL_Rect that holds the x, y, w, h variables. And a class called Button and a constructor of Button that takes the x, y, w, h arguments. Am I right?

[SirPrattlepod]

So what you mean I have to do is a SDL_Rect that holds the x, y, w, h variables. And a class called Button and a constructor of Button that takes the x, y, w, h arguments. Am I right?

I don't think it needs to be an SDL_Rect, your own rectangle class would do

[DecoratorFawn82]

Can you show me a bit of code how you mean. I'm not really understanding. Is it something like:

class Button
{
    private:
    //The attributes of the button
    SDL_Rect box;
    
    //The part of the button sprite sheet that will be shown
    SDL_Rect* clip;
    
    public:
    //Initialize the variables
    Button( int x, int y, int w, int h );
    
    //Handles events and set the button's sprite region
    void handle_events();
    
    //Shows the button on the screen
    void show();
};

Like that from the LazyFoo tutorial? Or how do I do this. The only thing Í want to do is to say if the mouse is in position (On the start button) and the user has clicked the left mouse button the program should start the game.

[SirPrattlepod]

Ok, working with SDL_Rect, how would you answer the question is (mx, my) inside the rectangle? Where mx and my are the x and y position of the mouse.