copy a subrect to a new sf::Sprite?

[sammyF]

In SFML1.6, is there any way to create a new sf::Sprite out of a subrect? I'm currently trying to modify the collision detection routine from the wiki so that it doesn't try to do pixel perfect collision detection of the whole sheet.

bbye,
Sammy

[Laurent]

In SFML1.6, is there any way to create a new sf::Sprite out of a subrect?

What do you mean? Every sprite has a sub-rect, you can set it with SetSubRect.

I'm currently trying to modify the collision detection routine from the wiki so that it doesn't try to do pixel perfect collision detection of the whole sheet.

Which source code is it? I don't remember seeing a code that behaves this way.

[sammyF]

I mean this one : http://www.sfml-dev.org/wiki/en/sources/simple_collision_detection . From the warnings it sends, it looks like it is using *all* the pixels of the 1024x128 image sequence the sprite is subRect'd from, instead of just checking the current subRect.
So I thought about creating a new image out of the subRect, and send THAT instead to the Collision::PixelPerfect (which is what I was asking about)

[Laurent]

So you want to create an image, not a sprite. You must use sf::Image::Copy.

But the original source code doesn't use all the pixels, only those contained in the intersection rectangle:

Code: [Select]

       for (int i = Intersection.Left; i < Intersection.Right; i++) {
            for (int j = Intersection.Top; j < Intersection.Bottom; j++) {


[sammyF]

Yep! That's what I was looking for! thanks