Get Sprite Screen position

[DarkGlitch]

Like the title says. A way to easily retrieve an object/sprite's screen location. This would be invaluable for stuff like making a quadtree. If this already exists, my Google-fu needs work. I have found a way to do it if I'm understanding this topic correctly (http://en.sfml-dev.org/forums/index.php?topic=5846.msg39044#msg39044), however a new function would be very nice. Other than that, SFML is amazing from what I've seen so far. Thanks for reading.

[Laurent]

See the new function RenderTarget::mapCoordsToPixel that was implemented recently.

But how does this help with a quadtree? You should be able to do all your calculations in world coordinates.

[DarkGlitch]

I was told (somewhere else) that I would need to use a quadtree to handle collision detection, or at least control how often I use the detection function for objects that are currently on the screen in a 2D game. I would need to know where stuff is on the screen, not the world for that, at least that's how I understood it.

I guess I will have to use 2.0 now. No more procrastination for me XD.

[Laurent]

Checking what's visible on screen doesn't mean that you have to do it in screen coordinates. What's visible on screen is an area of the 2D world, and a very precise one: the rectangle defined by the current view.

[cire]

If you tell the graphics system to draw something somewhere, do you then need to ask the graphics system where you told it to draw?  Maybe it would make more sense to remember what you told it.

Do moving objects that are not drawn on the screen stop moving and lose the ability to collide with other objects?

Quadtrees are usually defined in terms of world coordinates.

[DarkGlitch]

I see...

I'm still learning. Thanks for the tips. I haven't started to code a quadtree yet. Still researching how it's done.