SFML2 - 09 - Rectangle Scale Animation

#ifdef _MSC_VER
    #ifdef _WIN32
        #pragma comment( lib, "sfml-window.lib" )
        #pragma comment( lib, "sfml-graphics.lib" )
    #endif
#endif

#include <SFML\Graphics.hpp>
#include <iostream>

using namespace sf;
using namespace std;


int clamp (int x, int a, int b)
{
    return min(max(a,x),b);
}

Color scaleColor(RectangleShape &r, float f)
{
    Color c=r.getFillColor();
    c.r*=f;
    c.g*=f;
    c.b*=f;
    c.r=clamp(c.r,10,250);
    c.g=clamp(c.g,10,250);
    c.b=clamp(c.b,10,250);
    r.setFillColor(c);
    Color d=r.getOutlineColor();
    d.r*=f;
    d.g*=f;
    d.b*=f;
    d.r=clamp(d.r,10,250);
    d.g=clamp(d.g,10,250);
    d.b=clamp(d.b,10,250);
    r.setOutlineColor(d);
    return c;
}

int main()
{
    VideoMode videoMode(320,240);
    RenderWindow window(videoMode,"KeyEvent Window");

    RectangleShape rectangle;
    rectangle.setPosition(30, 30);
    rectangle.setSize(Vector2f(50, 30));

    rectangle.setFillColor(Color::Yellow);
    rectangle.setOutlineColor(Color::Blue);
    rectangle.setOutlineThickness(3);


    while (window.isOpen())
        {
        window.clear();
        window.draw(rectangle);
            window.display();

            Event event;
        while (window.pollEvent(event))
            {
            if ( (event.type == Event::Closed) ||
            ((event.type == Event::KeyPressed) && (event.key.code==Keyboard::Escape)) )
                        window.close();
            else
            {
                if (event.type == Event::KeyPressed)
                {
                    switch(event.key.code)
                    {
                        case Keyboard::Up:
                          rectangle.scale(1.0,1.1);
                          rectangle.move(0.0,-10.0);
                         scaleColor(rectangle,1.1);
                        break;
                        case Keyboard::Down:
                          rectangle.scale(1,0.9);
                          rectangle.move(0,10);
                          scaleColor(rectangle,0.9);
                        break;
                        case Keyboard::Left:
                          rectangle.scale(0.9,1);
                          rectangle.move(-10,0);
                          scaleColor(rectangle,1.1);
                        break;
                        case Keyboard::Right:
                          rectangle.scale(1.1,1);
                          rectangle.move(10,0);
                          scaleColor(rectangle,0.9);
                        break;
                    }
                    cout << "Rect at : " << rectangle.getPosition().x << ", "<< rectangle.getPosition().y << endl;

                }
            }

        }
    }
    return EXIT_SUCCESS;
}