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AlisterT / openjazz

OpenJazz
GNU General Public License v2.0
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Jazz disappears when moving #89

Closed mdebusk closed 12 months ago

mdebusk commented 2 years ago

Jazz disappears here whenever he runs and jumps. I've tried several resolutions and scaling levels and it doesn't seem to change anything. He's there if he's casually strolling, but as soon as he speeds up he disappears.

carstene1ns commented 2 years ago

Can you check which version of SDL you are using? I had the same problem when using the 'sdl12-compat' library. Arch ships this nowadays, maybe Ubuntu does it too.

mdebusk commented 2 years ago

Does this help?

1dpkg -l | grep sdl | cut -d " " -f 3: libsdl-image1.2:amd64 libsdl-mixer1.2:amd64 libsdl-net1.2:amd64 libsdl-sound1.2:amd64 libsdl-ttf2.0-0:amd64 libsdl1.2debian:amd64 libsdl2-2.0-0:amd64 libsdl2-dev:amd64 libsdl2-image-2.0-0:amd64 libsdl2-image-dev:amd64 libsdl2-mixer-2.0-0:amd64 libsdl2-mixer-dev:amd64 libsdl2-net-2.0-0:amd64 libsdl2-ttf-2.0-0:amd64 libsdl2-ttf-dev:amd64

carstene1ns commented 2 years ago

apt-cache show libsdl1.2debian should give the needed info. Did you build OJ yourself? Or is it from elsewhere?

mdebusk commented 2 years ago

It's the package that shipped in the Ubuntu 20.04 repos.

carstene1ns commented 2 years ago

How do you launch OJ? Do you specify multiple game paths?

I can reproduce if I use both Holiday Hare and the Shareware as game folders. Looks like OJ tries to load graphics from HH, while playing Shareware, which are empty there.

mdebusk commented 2 years ago

I run it from a launcher pointing at a directory copied form my old DOS install. It's the registered version, and I have no idea if the shareware levels are in the same folder. It's been... good grief... I have no idea how long it's been. I may have been introduced to the game via a BBS.

The menu shows episodes 1-6, a-c, x, bonus stage, and specific level. Does that tell you if I have the shareware episodes installed? If so, could you tell me which files I have to pack away?

mdebusk commented 2 years ago

I just tried it in DosBox (never did it before) and the same thing happens. Also, it DOES NOT happen in the holiday levels, which I'd also never tried playing before under Linux.

carstene1ns commented 2 years ago

I just tried it in DosBox (never did it before) and the same thing happens.

Is this now good or bad? 😄

mdebusk commented 2 years ago

Well, it certainly means it's a problem not restricted to openjazz.

carstene1ns commented 12 months ago

As said, it happens because the animation blocks are empty in some files (since they are unneeded in Shareware/Holiday Hare). There is currently no way to resolve this without restoring the original file(s). The original engine seems to also load the empty blocks.