Messages

1

Graphics / Re: Moving Object with Mouse

« on: June 10, 2012, 09:23:46 am »

You should only stop dragging when the mouse is released and move the object even when the mouse is not on the object

Thanks for reply. This problem solved. 

2

Graphics / [Solved] Moving Object with Mouse

« on: June 10, 2012, 05:42:37 am »

when i click down on object and mouse move slowly object will move follow.
if i move mouse faster mouse will leave or out of object and stop moving.

what wrong with my code and how to fix it.

#include <SFML/Graphics.hpp>

bool isMouseOver(sf::Sprite &sprite, const sf::Input &input)
{
    sf::Vector2f mousePos(input.GetMouseX(), input.GetMouseY());

    if(
        // check mouse position
        (mousePos.x >= sprite.GetPosition().x)
        &&
        (mousePos.x <= sprite.GetPosition().x + sprite.GetSubRect().GetWidth())
        &&
        (mousePos.y >= sprite.GetPosition().y)
        &&
        (mousePos.y <= sprite.GetPosition().y + sprite.GetSubRect().GetHeight())
        &&
        // check pixel on sprite
        (sprite.GetPixel(mousePos.x - sprite.GetPosition().x, mousePos.y - sprite.GetPosition().y).a == 255)
    )
        return true;
    return false;
}

bool isMouseButtonDown(sf::Sprite &sprite, const sf::Input &input)
{
    if (input.IsMouseButtonDown(sf::Mouse::Left))// && isMouseOver(sprite, input))
        return true;
    return false;
}

int main()
{
    // image
    sf::Image image;
    if (!image.LoadFromFile("image.png"))
        return EXIT_FAILURE;

    // window
    sf::RenderWindow window(sf::VideoMode(640, 480), "SFML window: Mouse Event");
    window.SetFramerateLimit(60);
    const sf::Input& input = window.GetInput();

    // sprite
    sf::Sprite sprite;
    sprite.SetImage(image);

    float lastMouseX  = 0;
    float lastMouseY  = 0;
    bool  dragStarted = false;

    // game loop
    while (window.IsOpened())
    {
        sf::Event Event;
        // event loop
        while (window.GetEvent(Event))
        {
            // close window
            if (Event.Type == sf::Event::Closed)
            {
                window.Close();
            }

            // if mouse over sprite
            if(isMouseOver(sprite, input))
            {
                //if mouse button down
                if (isMouseButtonDown(sprite, input))
                {
                    if(!dragStarted)
                    {
                        //start drag
                        dragStarted = true;
                    }
                    else
                    {
                        //drag
                        sprite.Move(input.GetMouseX() - lastMouseX, input.GetMouseY() - lastMouseY);
                    }
                    //get current mouse position
                    lastMouseX = input.GetMouseX();
                    lastMouseY = input.GetMouseY();
                }
                // if mouse button up
                else
                {
                    //stop drag
                    dragStarted = false;
                }
            }
            // mouse not over sprite
            else
            {
                //stop drag
                dragStarted = false;
            }
        }

        // clear screen
        window.Clear(sf::Color(255, 255, 255));

        // draw the sprite
        window.Draw(sprite);

        // update the window
        window.Display();
    }

    return EXIT_SUCCESS;
}

3

Graphics / Re: [solved] how to detect mouse if over a character?

« on: May 31, 2012, 07:00:18 pm »

thank you 

4

Graphics / Re: how to detect mouse if over a character?

« on: May 31, 2012, 06:22:29 pm »

version 1.6

5

Graphics / [solved] how to detect mouse if over a character?

« on: May 31, 2012, 05:54:37 pm »

this is my image(png format).
at center of image is my character(red color) and have a transparency background.

how to detect if mouse over my character(red color) not include over transparency background.

ps.sorry for my poor english.