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Author Topic: Mouse click colision  (Read 1077 times)

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Darkmoon

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Mouse click colision
« on: October 05, 2022, 08:30:07 pm »
So I'm new to both c++ and sfml and I want to make some simple project like the color of the box to change color when I click it or the position.
this is my code so far,
#include <SFML/Graphics.hpp>
#include <SFML/Window.hpp>
#include <SFML/System.hpp>
#include <SFML/Main.hpp>
#include <iostream>
#include <string>

int main()
{
    // create the window
    sf::RenderWindow window(sf::VideoMode(512, 512), "My window", sf::Style::Fullscreen | sf::Style::Default);
 
   
   
    std::string x = "Blue";
   
   
    sf::Texture background;
   
   
    sf::Sprite Background;
    Background.setTexture(background);
    Background.scale(3, 3.0);
    sf::RectangleShape box (sf::Vector2f(100.0f, 100.0f));
    box.setFillColor(sf::Color::Red);
    box.setPosition(100, 100);
    sf::FloatRect collision = box.getGlobalBounds();

    sf::Vector2i point = sf::Mouse::getPosition(window);
   

    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            switch (event.type)
            {
            case sf::Event::Closed:
                window.close();
                break;
           
             
            /*case sf::Event::TextEntered:
                if (event.text.unicode < 128)
                {
                    printf("%c", event.text.unicode);
                }*/

               
            }
        }
        /*if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
            player.move(0, -2);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
            player.move(0, 2);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
            player.move(-2,0);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
            player.move(2, 0);
        if (sf::Mouse::isButtonPressed(sf::Mouse::Left))
        {
            sf::Vector2i mousePos = sf::Mouse::getPosition(window);
            player.setPosition(static_cast<float>(mousePos.x), static_cast<float>(mousePos.y));
        }*/

       
        auto mouse_pos = sf::Mouse::getPosition(window); // Mouse position relative to the window
        auto translated_pos = window.mapPixelToCoords(mouse_pos); // Mouse position translated into world coordinates
        if (box.getGlobalBounds().contains(translated_pos)) // Rectangle-contains-point check
        {
            box.setFillColor(sf::Color::Green);
        }
       



       
       
        window.clear(sf::Color::Blue);

        //window.draw(Background);
        window.draw(box);

        window.display();
    }

    return 0;
}
 
I took the code from tutorials and other post on the forum but the color changes as soon as the cursor approaches the box.
How can I make a the box change color when I click it?
« Last Edit: October 06, 2022, 08:42:08 am by eXpl0it3r »

eXpl0it3r

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Re: Mouse click colision
« Reply #1 on: October 06, 2022, 08:44:31 am »
Currently you just check the mouse position, but not if the mouse button has been clicked.

I suggest to use the mouse button event instead of the sf::Mouse class, as it will make it slightly easier.
And I'd check for when the mouse button is released and then change the color.
For how to use the event, see the official tutorial: https://www.sfml-dev.org/tutorials/2.5/window-events.php#the-mousebuttonpressed-and-mousebuttonreleased-events
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