Problem with sf::IntRect

[woskaz0n]

hi everybody again  

I´m sorry that I´ve to ask quite a lot, but sometimes I´m unable to find a possible solution.

This time I want to load some images from a sprite sheet, like this...


For this I use the sf::IntRect function... but I don´t know how to set the parameters. After I tried a few things, I allready know that the two last parameters give the size of the sprite.
So I guess the other two are standing for the position, but this won´t work

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sf::IntRect Rect(0, 0, 45, 45);   /* Everything allright... the first sprite is shown.*/

sf::IntRect Rect2(45, 0, 45, 45); /*This should cut out the second sprite, but when I display it, it appears just a black screen */

sf::IntRect Rect(-45, 0, 45, 45); /*What happens now, you can see in the screenshot below...





So, what have i to do, that the second sprite is shown on the screen?

Thanks in advance!

[Hiura]

Rect2 should be :

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sf::IntRect Rect2(45, 0, 90, 45);

[woskaz0n]

Rect2 should be :

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sf::IntRect Rect2(45, 0, 90, 45);

Thanks for your quick answer, it works fine. But i don´t know why  
Could someone give me a brief statement which parameter I´m using for which position, please?
Thank you very much!

[Hiura]

The doc explains it.  :wink:

If your rect is defines by two points (upper-left and bottom-right coins) : UL(X;Y) and BR(X';Y'). Your rect will be : sf::IntRect rect(X, Y, X', Y').

[Wizzard]

your rect is defines by two points (upper-left and bottom-right coins)

As Hiura said, you need two points to make a rectangle in SFML, the upper left corner of the rectangle and the bottom right corner of the rectangle:

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(x1, y1)----
|          |
|          |
----(x2, y2)

sf::IntRect(x1, y1, x2, y2);
Note that the third and fourth parameters are not width and height, but coordinates.