Rotation rectangle around object

[addepadde]

Hey guys, im trying to make a game where you can controll a player around a object.

Key press A: Rotates counter clockwise.
Key press D: Rotates clockwise.
Key press W: Moves player away from centerobject, (opposite direction).
Key press S: Moves player towards centerobject.

Im having trouble getting the moment for W and S to work as i want it to...

For rotation i did :

    globe.setOrigin(125.00f, 125.00f);
    globe.setPosition(window.getSize().x /2.00f, window.getSize().y / 2.00f);
    globe.setTexture(&globe_texture);
   
    player.setOrigin(globe.getOrigin().x, globe.getOrigin().y);      // Player get the same central as the globe.
    player.setPosition(globe.getPosition().x, globe.getPosition().y);

For A and D:

        if (Keyboard::isKeyPressed(Keyboard::Key::A))
            {
                counter = 0;
                player.rotate(-0.5f);    // Counter Clockwise.
            }
        if (Keyboard::isKeyPressed(Keyboard::Key:: D))
            {
                counter = 0;
                player.rotate(0.5f);    // Clockwise.
            }

Thx!

[eXpl0it3r]

While you can achieve some things by setting and resetting the origin point, it's closer to what you're actually doing and more flexible to use linear algebra and trigonometry.
For the circular movement (good keyword to web search), you'd use cos and sin.

Here's some short article nicely explaining this (with JavaScript): https://franzeus.medium.com/math-for-circular-object-movement-in-a-game-cae101474a65

Once you have that, the rotation of the player (if so desired), would require you to calculate the direction vector from which you can then determine necessary rotation angle.

[addepadde]

Thx for the link , Ye i tried to calculate it and just solve it with trig math without success.

 I also tried to use transform and rotate the transform around the center and then apply the transform to the player in order to not have to change and rechange the origin of the player all the time.


EDIT:
Solved the rotation part thanks to your link

[eXpl0it3r]

Adapting some code from my Rotating Triangle Example, you should be able to achieve the rotation with something like this:

auto centerPoint= sf::Vector2f{ 20.f, 20.f };
auto deltaPosition = sf::Vector2f{ triangle.getPosition().x - centerPoint.x, triangle.getPosition().y - centerPoint.y };
auto rotation = to_degree(atan2(deltaPosition.y, deltaPosition.x)) + 90.f;