sprite sheet help

[toomanystars]

Hi guys,

Started working with SDL, and right now I am going through a few tutorials. However, they supply the sprite sheets, and the dimensions they are extracting from them.

If I download a random sprite sheet, how do I know without trail and error where to cut the image width, and image height in pixels to load into my array?

Thanks,

Mike

[naraku9333]

Assuming all images will have same dimensions, you can think of the sprite sheet as a multidimensional array of images. Then you can get the part of the image by multiplying each array index by the corresponding sprite dimension.

Edit: I think I misunderstood. Some sheets I have found have noted the dimensions, others I've calculated based on the sheet dimensions and number of images or open in an image editor that gives cursor position coords.

[toomanystars]

Thanks naraku,

I like both ideas; simply take the dimensions and do a little division based on the amount of images.

The second method sounds like a good idea too, and I will implement one or the other as the circumstances necessitate.

I thought maybe there would be some algorithm or a more sophisticated method.

Thanks,

Mike