Organize sprites in tiles or individual files?

[PHP]

Hello,

What is the best way to organize the respective movement direction sprites for your characters?

Copy them all into a so-called “tile” for each character and then copy them out using ClipSprite() and use them?
(you can see an example of this in the middle)



Or put all the graphic files for a character in a separate folder and handle them differently?

Are there any limitations regarding the maximum sprite size with the first tile method?

Thanks for all your tips!

[ricardo_sdl]

I think the main advantage of having all your sprites in a single image file is the reduced memory usage.

[PHP]

But isn't it basically easier to use tiles?

Let's say I have 5 characters, each with 8 movement types.

Tiles:
Load 5 sprites and use ClipSprite() to copy the current movement from the sprite.

Files / individual sprites:
Load and process 5 * 8 = 40 files / sprites.

[minimy]

Hello PHP and Ricardo. Personally I prefer to do it this way:

1) Create a structure or map for the sprites.
Here you can store id, group, health...
2) Load the PNG image.
3) Use a procedure to create and draw the frame want on the sprite. And thus get all the sprites.
In the procedure you can pass the group to which it belongs, if you have several groups of sprites.

It may be more work at the begin, but later is easy to store your sprites. With 5 sprites it may not be noticeable, but if you have 400 sprites it shows in the speed, you save 'cutting' each sprite in each cycle, and if there are 400 there are a lot of cuts.

But as they say in my country, 'Every teacher has his little book'.
It is best to use the way that is most comfortable for you and also depends on the type of game, number of sprites, etc.

[ricardo_sdl]

In my small game I'm doing like this:


Each sprite or sprite sheet has its own file. All of them are loaded at the game start. I don't have many of them so memory usage shouldn't be a problem.

It's easy to use, if I need to change some sprite I only touch a single file. I think that the approach of having all your sprites (for different objects, enemies, icons, tiles etc) in a single file is called sprite atlas, and there is software that can help you generate the sprite atlas and other files to allow you load the correct sprites on your code, here is one:

https://witnessmonolith.itch.io/atlased

[Carm3D]

I put them on sheets, but they are all mostly related for creating animated elements.
https://imgur.com/kBLa8QF

[miso]

In the scope that is assumed by the reference image, I would say do what fits best to your coding style. You won't have problems using either methods.

For a more generic answer: I use sprite atlas if sprite is animated and the environent is OpenGL or Ogre3d with orthographic camera, and I use individual sprites if environment is pb 2d screen.

For short reasons for that last one: my sprites are often not big but small ones. There were a technical switch in pb 2d once, currently these are textured quads. There are now two sprite sizes: quadsize and texturesize. When you load a sprite, the quadsize will be the same as the texture size. If you zoomsprite to get a scale, you modify the quadsize. If you clipsprite, you modify the uv of the texture within the texturesize. If you want a new frame, you have to reset clipping ( to get the original sizes ) but that will also reset zoomdata. You clip again, you zoom again instead of reuving.

I'm sure it's for backward compatibility, but for me it's so confusing, that I only use clipsprite for some effects like changing pages of a book.

[miso]

Are there any limitations regarding the maximum sprite size with the first tile method?
Thanks for all your tips!

I missed that one, yes there is. It is the maximum texture size and depends on the video card. It's safe to use a 2048x2048 sprite atlas, but you can go one tier up higher if necessary.

[PHP]

By the way, I always talked about ClipSprite(), which is nonsense, of course. I meant GrabSprite(), which always fetches the corresponding figure from the “atlas” for me...

Edit: Oh, I see that GrabSprite() isn't right either, because it doesn't copy part of a sprite, but the entire screen.

[PHP]

The AI is hallucinating again, but actually that's exactly the command I need

Or were the target parameters actually available in PB at one point and have since been removed?