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Graphics / Solved: How to do the math for a "line" with RectangleShape?

« on: December 04, 2022, 03:08:24 am »

Edit:

I was closer than I thought!  I finally figured it out.  Here's my code:

sf::RectangleShape MakeLine(sf::Vector2f StartPoint, sf::Vector2f EndPoint, sf::Color LineColor, float LineThickness)
{
        float VectorX = EndPoint.x - StartPoint.x;
        float VectorY = EndPoint.y - StartPoint.y;
        float Distance = sqrt((VectorX * VectorX) + (VectorY * VectorY));
        double Angle = atan2(VectorY, VectorX) * (180 / 3.14159265359);

        sf::RectangleShape Line(sf::Vector2f(Distance, LineThickness));
        Line.setOrigin(0.0, LineThickness / 2.0);
        Line.setPosition(StartPoint);
        Line.setRotation(Angle);
        Line.setFillColor(LineColor);

        return Line;
}

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I'm trying to follow the advice to use RectangleShape to make lines (with thickness), but I'm stuck on the math.  I have the start and end points, but I don't know how to turn that into the length, position, and rotation of the rectangle.

Can anyone help me out?  Thanks!