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Author Topic: Linking a shape and Rect? [SOLVED]  (Read 1725 times)

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sircuddles

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Linking a shape and Rect? [SOLVED]
« on: January 29, 2013, 11:01:00 pm »
Apologies in advance because I'm fairly sure this question has a simple answer, I'm just too noob to find it.

I'm using primitives to make a Breakout clone and I'd like to use sf::Rect<int>'s intersect() for all my collision detection, so each object in the game will have an sf::Rect<int> that acts as it's bounding box.  Each object also has an sf::RectangleShape to represent the actual object on screen.

Is there an easy way to keep these two linked?  For example, if I move the object is there an easier way than this?

objectShape.setPosition(x, y);
objectBounding.top = x;
objectBounding.left = y;
« Last Edit: January 29, 2013, 11:57:14 pm by sircuddles »

Laurent

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Re: Linking a shape and Rect?
« Reply #1 on: January 29, 2013, 11:04:22 pm »
objectBounding = objectShape.getGlobalBounds();
Laurent Gomila - SFML developer

sircuddles

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Re: Linking a shape and Rect?
« Reply #2 on: January 29, 2013, 11:38:10 pm »
sf::RectangleShape p1Shape;
sf::Rect<int> p1BoundingBox;
p1BoundingBox = p1Shape.getGlobalBounds();

Results in 'no operator "=" matches these operands'.

eXpl0it3r

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Re: Linking a shape and Rect?
« Reply #3 on: January 29, 2013, 11:49:17 pm »
That's why there's a documentation... ::)

getGlobalBounds() returns a sf::FloatRect aka sf::Rect<float>. ;)
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sircuddles

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Re: Linking a shape and Rect?
« Reply #4 on: January 29, 2013, 11:57:04 pm »
Ahhhh, I gotcha.  I didn't know sf::FloatRect was sf::Rect<float>, so that part had me confused.

Thank you both :)

eXpl0it3r

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Re: Linking a shape and Rect? [SOLVED]
« Reply #5 on: January 29, 2013, 11:59:56 pm »
sf::IntRect and sf::FloatRect are just typedefs for easier usage, see here. :)
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