RiK
New Member
Posts: 2
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Post by RiK on Jun 20, 2004 18:28:33 GMT
is there a way to force z-ordering of the sprites using your system?
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Post by syntaxerror on Jun 25, 2004 13:15:46 GMT
Currently sprites are z-ordered according to the order in which you extract them.
Every time you extract a sprite from a pack it will be drawn over the top of all of the other extracted sprites:
pack=LoadPack("test.png")
ball=GetPackedSprite("myball",pack)
brick=GetPackedSprite("redbrick",pack)
ship=GetPackedSprite("spaceship",pack)
In the above example the ship will appear in front of the ball and brick.
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Post by Slenkar on Oct 10, 2004 22:39:36 GMT
I have 103 images in one pack so I cant extract them individually,I have to use countsprites()
Is there a way to control which images are extracted first in the
for a =1 to numsprites
extractimage,a
next
loop?
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Post by syntaxerror on Oct 18, 2004 12:18:48 GMT
Thats difficult Slenkar. As you know, the images are jumbled around in the packer if you add/resize/remove images.
One idea is to rename your images like this:
spr_0
spr_1
spr_2
etc ...
That way, you can extract by name in a guaranteed order:
For num=1 to 103
sprite(num)=GetPackedSprite("spr_"+Str$(num),pack)
Next
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Post by Slenkar on Oct 18, 2004 15:58:37 GMT
thanks that solved the problem
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Post by RagTag on Feb 12, 2005 3:55:20 GMT
Lack of Z-Ordering with SpriteMaster is a real problem if you dynamically create and destroy sprites quite a lot. For example, if you have a bunch of aliens and shadows which appear under them, every time you create a new alien and shadow the shadow will be drawn over the top of existing aliens.
My solution is to separate things into "layers", which is done on a per-pack basis. For example, keep all your objects in one pack and all your shadows ( which will appear under objects ) in another pack.
Then you can ZOrder a layer ( a pack ) using this function :
Function ZOrderLayer(packIndex%,Order%)
Local c.smContainer=Object.smContainer(packIndex)
If c<>Null
If c\mesh<>0
EntityOrder c\mesh,Order%
End If
End If
End Function
Supply the PackIndex that LoadPack gives you and the zorder and you're golden.
You can also modify the code above to allow you to hide an entire layer or show it again.
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