Messages

1

Feature requests / Re: Position Forward Up from Transform

« on: October 10, 2018, 07:38:46 pm »

If you look at the translation matrix itself, then yes, the position is perfectly retrievable.

It is if the object is inheriting a sf:Transformable class. The thing is that I only inherited from sf::Drawable and used sf::Transform inside this class. So with this there is no getPosition() from sf:Transform but instead I had to create the code above.

2

Feature requests / Position Forward Up from Transform

« on: October 06, 2018, 10:51:34 pm »

I recently started using SFML and its transforms and I had to extend sf::Transform as it lacked some functionality that I needed.

This is an example of my code:

// some class
sf::Transform _transform;

sf::Vector2f Position2() const { return sf::Vector2f(_transform.getMatrix()[2], _transform.getMatrix()[6]); }
sf::Vector2f Scale2() const { return sf::Vector2f(_transform.getMatrix()[0], _transform.getMatrix()[5]); }
void Position2(sf::Vector2f value)
{
        sf::Transform tmp(_transform.getMatrix()[0], _transform.getMatrix()[1], value.x,
                _transform.getMatrix()[4], _transform.getMatrix()[5], value.y,
                _transform.getMatrix()[8], _transform.getMatrix()[9], _transform.getMatrix()[10]);
        _transform = tmp;
}
sf::Vector2f Right2() const { return sf::Vector2f(_transform.getMatrix()[0], _transform.getMatrix()[1]); }
sf::Vector2f Up2() const { return sf::Vector2f(_transform.getMatrix()[4], _transform.getMatrix()[5]); }
 

Could something like this be implemented into sf::Transform? For e.g. there is a method sf::Transform::translate() which translates based of current values but there is no functionality to set position directly.