Which is better in terms of performance - adding bitmaps or making unneeded bitmaps invisible?

pm1891

Hi,

I'm a newbie and am trying to code my first game in Gideros. So my question is about adding more than one bitmap to a sprite and what is better in terms of performance, to do. Add multiple bitmaps to a sprite and make one or more invisible as required or have only one or two bitmaps and change them on the fly? Thanks.

oleg

it is better to remove them from their parents


ps: https://wiki.giderosmobile.com/index.php/Profiling

oleg

if you make an animation, then read it:

https://wiki.giderosmobile.com/index.php/MovieClip

or

https://wiki.giderosmobile.com/index.php/Spine

pm1891

Thank you so much for your reply. So fast too.

I'm not trying to make an animation. I want to replace the bitmap of a sprite. For example, my object is a card with one bitmap for the basic shape and another bitmap for a symbol which lies on top of the shape. Now , I want to change the shape or the symbol of the card at will.

So if there are 10 types of cards, my question is what's the better way to change a card. Have twenty bitmaps on one sprite and making some bitmaps invisible to get the look I want OR have only two bitmaps per card and replace those bitmaps every time to get the look I want.

keszegh

try to make your card a Pixel and change its texture when a new image is needed.
http://docs.giderosmobile.com/reference/gideros/Pixel/setTexture#Pixel:setTexture

pm1891

@keszegh Thanks for the suggestion. I just looked through the Pixel documentation. Is is really faster than basic sprite? Using @oleg 's answer, I did some profiling and decided to using the setTexture method to change texture as needed to get a different card.

So I guess now I have to profile Pixel too. Thanks for the idea.

Apollo14

As far as I remember, 'setTexture' was fastest. And Bitmaps were faster than Pixels.

local pic1 = Bitmap.new(Texture.new("card01.png",true)) pic1:setTexture(Texture.new("card02.png",true))

pm1891

@Apollo14 That's what I found out using the profiling API too. setTexture seems like the fastest way to do things. So that's what I'll be using.

Thanks to all of you for taking an interest in my issue.

antix

@pm1891 Pixels are great when you want a colored rectangle but as you discovered.. not as fast as Bitmaps.

pm1891

@antix Yup. I'm using pixel as background but sticking to bitmaps for the gamepieces.