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Standard definition of sprites?

Started by abeylin Nov 16, 2011 at 10:24 PM 3 replies 1.4k views

Original Post

Nov 16, 2011 at 10:24 PM

Hi,

Is there a standard way of describing image positioning in a sprite sheet?

I hope I'm using the proper terminology, so in other words:
A lot of times a single image file will have a lot of tiny images in it. Program would use those individual images for a game/application, but it needs to know the position of those images.
Is there a standard way of describing the positions of those tiny images?
For example maybe a text file:
name:offsetx, offsety, lengthx, lengthy
or in xml:

200100
4025

Is there a standard file format like that?

If not, than is there a recommended way?

And finally, if not even something that's recommended, are there any personal recommendations?
Thank you
Alex

firstelder_d

Nov 17, 2011 at 1:27 AM

I don't know if there is a standard way, but you need 4 things x, y, width, and height. I'm assuming by length x,y you mean width and height. Ideally you would have a tool that makes a binary file, that is then loaded by your game. Any file format you're comfortable with will work though. If using XML this is how I would set it up:


 <sprite name="butterfly">
 <!--- I wouldn't use offset here, offset suggests the animation frame is offset by an x,y from the actual sprite's x,y --->
 <x>200</x>
 <y>100</y>
 <!--- width and height make a lot more sense than length imho --->
 <width>40</width>
 <height>25</height>
 </sprite>

abeylin

Nov 17, 2011 at 12:57 PM

agreed, width+height is better, and so is the whole xml you made up.

still kind of disheartening there's no standard for something so commonly used.

Thank you

way2lazy2care

Nov 17, 2011 at 1:46 PM

agreed, width+height is better, and so is the whole xml you made up.

still kind of disheartening there's no standard for something so commonly used.

Thank you

There are too many variables that are important to program specific optimization for it to be standard imo.

abeylin

Nov 17, 2011 at 9:39 PM

There are too many variables that are important to program specific optimization for it to be standard imo.

Could you give an example, and are you discussing file-format or data in the file?

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