Gigatron Hackers

I think there is a bug in the SPRITE SHOW command. It blanks out every 2nd show.

I am moving the sprites off screen for the moment to hide them when not in use. This is working for me ok when my characters are walking.

OK, I will remember that. It is working in a procedure for LOAD BLIT but maybe this will break later. I am not quite understand SPRITE SHOW, ID, ? If I call it once with a value of 1 the sprite shows, then if I call it a second time the sprite disappears and on the 3rd call it reappears. Can you des...

I found an interesting situation. My sprites were still breaking up so I stripped everything out of the program, got the sprites working then started adding all the code back a little at a time to find out what was breaking the sprites. I found that if the sprite loading is in the main code flow it ...

I am getting this error which I don't understand why. Looks like it is complaining about jumping a page boundary ?

That cleaned up all the random weirdness in the graphics as well as the issue with the text positioning.

Now to get the sprites displaying again

Thank you for the help

OK, I got it now. My graphics are actually 12 bits wide. I completely missed that when I was programming. It should only affect the bottom right corner tile as the screen memory is contiguous ?

I could also make my tiles 6 bits wide which probably would be better

Sorry, I don't see the problem. W=8 so maximum J*W = 152 and maximum I*W=104. These are within the screen area of 120 X 160 pixels are they not ?

The tiles are 8 X 8 pixels that are being drawn.

There is no issue until sprites are drawn.

No hurry. Just wanted to confirm it arrived in case the spam gods got it

I sent the code via your email. Did you receive it OK ?