It does work on MAME although with some emulation bugs. Leonis has completed the game using MAME and posted some videos on Discord on what the bugs look like.
First level is completely playable. My big challenge (and I new it would need dealing with) is how to manage the sprite priority. Sometimes Sonic disappears behind the scenery (and pick ups are hidden too). If I can solve this I think the port is completely doable.
I don't have the docs to hand but the game uses a word sized tilemap which reduces the space for tiles to (I think) 432 vs the SMS 448. Not a huge difference but just needs working around. I did briefly look at Stencil/Blend modes but did quite understand them, will have a look at Mike's blog to see if it helps.
I used #CSpect for development so it definitely runs. Only issue I had is that I couldn't get joysticks working (using an Xbox One controller on Windows).
I think most should be able to be ported to the Next. Some might take more effort than others, depending on how big the game is and how much it uses the per tile sprite prioritisation.
Hi, I have the physical copy of this game and just realised there are updates available. The fatfreecartpro link in my original confirmation email doesn't work, how do I upgrade to v1.03? Thanks.
Hi Magisthan, really glad you enjoyed it. It was a labour of love because I know it isn't everyone's favourite. It gets compared to Double Dragon which everyone has more love for (probably including me) but I think it's a great game and you can learn how to beat it.
Issue with Vampire AGA compatibility I'm afraid, there's nothing I can do my end as I don't have a Vampire to test why it is misbehaving. I'm using 64 bit wide fetches for both bitplanes and sprites so maxing out the bandwidth. Out of interest, does the ECS version run ok on the Vampire?
Yes, by default it will just use the red button as a single button joystick but you can go into the option and change to CD32 pad, then yellow will jump, green will attack left and blue attack right. Red is still used to confirm menu choices.
Sorry, you said ECS version so you shouldn't need fast mem. Just burn the files onto a cd although a quick Google suggest there is an extra step to make is bootable.
Do you have fast mem on your CD32? If so I assume to you just need to burn a cd image with the correct files on. Not sure what make a CD32 disk bootable though.
Thanks, glad you're enjoying it. To be honest, not a lot of the engine is reusable. Some of the sprite/tile stuff can be but the game logic is quite specific to this title. I did learn a few concepts around how certain structures and collision works which is good knowledge to take forward at least.
No, just an executable that can be run from workbench/AmigaDos. The Lha version can be mounted as a hardfile in winuae just use the archive option in the hard disk settings.
Hmm, should work ok. I've tested it on PiMIGA 5 and it run fine. I've tested it with the Read/Write box checked and unchecked and it makes no difference.
ok, crash is vasm related. When I assemble using genam/blink on my Amiga it work fine. Must have a bad option set somewhere. Bad new is it runs a lot slower on A600 than A1200 with CPU lower to 7mhz :(. A lot of optimising to do.
Thanks for reviewing. No plans for 2 player simultaneous mode I'm afraid. You were playing on the default settings which has the difficulty set to normal (arcade coin eating), if you change it to Easy in the options then it is a lot easier (even easier than the arcade with the dip switches set to easy)
So, turns out the were a few missing # when using move.l #custom,A6. These were all for calls to the ptplayer routine, particularly all calls to play a sample. I'm surprised it didn't have a more profound effect, I think it mainly stopped the disabling of the music interrupt when queuing up a new sample to play. Have fixed them now, thanks for the heads up
