Getting clicked position using SFML

问题

I'm currently learning SFML on my own, and trying to figure out how to print out the position of the clicked area at bposX and bposY in the pollevent section. Thi s is my codes:

sf::RectangleShape smallRectangle (float width = 1.0f, float height = 1.0f, 
                                sf::Vector2f position = sf::Vector2f(1.0f,1.0f),
                                const sf::Color& myFillColor = sf::Color(0,51, 51)
                                )
{
  sf::RectangleShape sboard;
  sf::Vector2f myRectangleSize(width, height);
  sboard.setSize(myRectangleSize);
  sboard.setPosition(position);
  sboard.setFillColor(myFillColor);
  return sboard;
}

case sf::Event::MouseButtonPressed:
                switch(event.mouseButton.button)
                    case sf::Mouse::Left:
                    {
                        float bposX = sboard.getPosition().x;
                        float bposY = sboard.getPosition().y;
                        cout << "Current Position : ";
                        cout << bposX << " " << bposY << endl;
                    break;
                    }

for(int i=0; i < sgridSize; i++)
{
    for (int j = 0; j < sgridSize; j++)
    {
        window.draw(sgrid[i][j]);
        sf::FloatRect sgridBounds = sgrid[i][j].getGlobalBounds();
        if(sgridBounds.contains((sf::Vector2f)pointerPos))
        {
            shighlightCell.setPosition(sgrid[i][j].getPosition());
            window.draw(shighlightCell);
            if(sf::Mouse::isButtonPressed(sf::Mouse::Left))
            {
                sgrid[i][j].setFillColor(sf::Color::Green);
            }
        }
    }
}

When I click in rectangle it only displays 1 1, based on my Vector2f position.

回答1:

Assuming I'm reading your code properly, sboard is a sf::RectangleShape. Chances are you actually want the position of the mouse, not this rectangle. Mouse position is given through the static function sf::Mouse::getPosition() which gives coordinates relative to desktop or sf::Mouse::getPosition(window) which will give you the position of the mouse relative to a sf::Window or sf::RenderWindow instance.

I suggest reading through the tutorials on the SFML website while you're learning the basics. This one is immediately useful.

来源：https://stackoverflow.com/questions/25690979/getting-clicked-position-using-sfml

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sfml