Games Use Atlas in Libgdx

[ilan]

hi

i would like to use atlas in my new libgdx game and not put all images in the file folder so i create the png + .pack file with libgdx texture packer

the problem is that i am not getting the right result.

i want to use lgtextures in my game so i can draw them how i want.

my code is:

    Atlas.InitializeWithFile("atlas/myatlas.pack")

    background = Atlas.CreateSprite("back4").Texture
    holz1 = Atlas.CreateSprite("tree7").Texture
    holz2 = Atlas.CreateSprite("tree8").Texture
    holz1l = Atlas.CreateSprite("tree7l").Texture
    holz1r = Atlas.CreateSprite("tree7r").Texture
    redindi = Atlas.CreateSprite("redindi").Texture
    ground = Atlas.CreateSprite("ground3").Texture
    blueindi = Atlas.CreateSprite("blueindi").Texture
    bigtree = Atlas.CreateSprite("tree").Texture
    arrowtx = Atlas.CreateSprite("arrow").Texture

before i have loaded each texture like this and i had no problems

    'textures
'    background.InitializeWithFile(lGdx.Files.internal("back4.png"))
'    holz1.InitializeWithFile(lGdx.Files.internal("tree7.png"))
'    holz2.InitializeWithFile(lGdx.Files.internal("tree8.png"))
'    holz1l.InitializeWithFile(lGdx.Files.internal("tree7l.png"))
'    holz1r.InitializeWithFile(lGdx.Files.internal("tree7r.png"))
'    redindi.InitializeWithFile(lGdx.Files.internal("redindi.png"))
'    ground.InitializeWithFile(lGdx.Files.internal("ground3.png"))
'    blueindi.InitializeWithFile(lGdx.Files.internal("blueindi.png"))
'    bigtree.InitializeWithFile(lGdx.Files.internal("tree.png"))
'    arrowtx.InitializeWithFile(lGdx.Files.internal("arrow.png"))

what i am getting now is this:

instead of this:

any advices, please?

 

[ilan]

i could use lgTextureRegion

    Atlas.InitializeWithFile("atlas/myatlas.pack")
    background = Atlas.CreateSprite("back4").Texture
    region.InitializeWithTexture3(background, 2, 163, 800, 600)

and

Batch.DrawRegion2(region,-vpW*0.15,0,vpW*maxscalefactor+(vpW*0.3),vpH*maxscalefactor)

but it doesnot make any sense to use an atlas and then define for each texture his region

 

[ilan]

using regions instead of textures solve the problem but why does lgsprite.Texture return the WHOLE Atlas instead of the defined texture with the region in the atlas??

code that works:

    Atlas.InitializeWithFile("atlas/myatlas.pack")
    background = Atlas.FindRegion("back4") '.CreateSprite("back4").Texture
    holz1 = Atlas.FindRegion("tree7")
    holz2 = Atlas.FindRegion("tree8")
    holz1l = Atlas.FindRegion("tree7l")
    holz1r = Atlas.FindRegion("tree7r")
    redindi = Atlas.FindRegion("redindi")
    ground = Atlas.FindRegion("ground3")
    blueindi = Atlas.FindRegion("blueindi")
    bigtree = Atlas.FindRegion("tree")
    arrowtx = Atlas.FindRegion("arrow")

DrawRegion2 (like DrawTex2)

    Batch.Begin 'draw everything here!!
        Batch.DrawRegion2(background,-vpW*0.15,0,vpW*maxscalefactor+(vpW*0.3),vpH*maxscalefactor)
    Batch.End

DrawRegion3 (almost! like DrawTex5, NO flip option or draw defines src rect)

            Batch.DrawRegion3(holz1,vec2.x,vec2.y,mycor.width/2,mycor.height/2,mycor.width,mycor.height,1,1,PosCon.Rad2Angle(wood.Angle))',0,0,16,96,False,False)

at least the project looks much cleaner now

 

[melonZgz]

using regions instead of textures solve the problem but why does lgsprite.Texture return the WHOLE Atlas instead of the defined texture with the region in the atlas??

Yep, I have the same problem right now, when you reference the texture, it means the whole atlas texture.
I'm using now in my hill climb racing game batch.drawtex3 (because of uv mapping), wich expects a texture, and I can't put the image into an atlas, because the texture means the whole atlas texture.

 

[ilan]

Yep, I have the same problem right now, when you reference the texture, it means the whole atlas texture.
I'm using now in my hill climb racing game batch.drawtex3 (because of uv mapping), wich expects a texture, and I can't put the image into an atlas, because the texture means the whole atlas texture.

you could use Drawregion3 instead. it works for me.

and if i need to flip a texture i will create a separate one for it and use drawtex5 but for simple obstacles drawregion2 & drawregion3 are enough

no need for that

background.Flip(True,False)

lgtextureregion has a flip function so you can flip it and still use drawregion3 like using drawtexture5 (COOL!!)