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Forum Index : Microcontroller and PC projects : Buffer not in use???

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mkopack73
Senior Member

Joined: 03/07/2020
Location: United States
Posts: 261

Posted: 01:21am 27 Jul 2020

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Hey gang,

Running into a problem that has me stumped...

I'm changing how I'm loading in sprites... What I'm trying to do is the following:

In my loadsprites() I'm reading in a series of 25 PNG files using load png and putting them onto page 3. (I even do a page copy 3 to 0 so I can see that they all loaded in ok...)

later in my program when I go to spawn a new AI car, I randomly pick one of the 25 and do a sprite read for the coordinates of the one chosen. That all seem to be ok...

The next line I go to show the sprite I just read and I keep getting back

"Buffer not in use" error on the line where I do the sprite show.

Ideas??? I don't get what could be wrong. I do this in other parts of my program and it works just fine.

capsikin
Guru

Joined: 30/06/2020
Location: Australia
Posts: 342

Posted: 01:43am 27 Jul 2020

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Maybe the code is trying to use an invalid sprite number. 0 for example.
Code for picking the number, reading the sprite, and showing it?

mkopack73
Senior Member

Joined: 03/07/2020
Location: United States
Posts: 261

Posted: 01:51am 27 Jul 2020

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It's on my other machine... I'll have to post it tomorrow... Been banging my head on this for a good hour plus and I need to get to bed.

I just don't get how I can do a line like:

sprite read i+1, x,y,xsize,ysize,2 'this should be creating the sprite from data on screen 2
sprite show i+1, xpos,ypos,2 'show the sprite as part of layer 2

and the 2nd line fails...

Yet I do the EXACT same thing in 2 other parts of my code to load in PNGs (or draw an area) and then read that into the sprite and show it and it works fine.

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