Spectrum Computing

updated 48k version:
Fixed flame rendering bug caused by android being on layer #2
This bug was very hard to spot due to background tiles and particular place.

Experimenting with shading, it doesn't look very good.

Visualization of the excessive rendering bug:

Hi @Alex Rider
There's another bug in your mod:

Improved performance of 128k version (it is now 6 times faster than original on average at max speed). https://zxart.ee/eng/software/game/arcade/action/saboteur-2-mod-by-thealfest/128k/ The 48k version received the same performance improvement. https://zxart.ee/eng/software/game/arcade/action/sabot...

Did anyone find the secret mission in 128k version?

Made some demos that visualize some of my optimizations. Spectrum Analyser is great tool for such things. It helped me to find a bug (caused redundant rendering) that I thought I had fixed. original version : https://www.youtube.com/watch?v=6NpwGQPuaeY https://www.youtube.com/watch?v=MPUL0LAUsck mod...

Improved performance of 128k version (it is now 6 times faster than original on average at max speed).

https://zxart.ee/eng/software/game/arca ... fest/128k/

@Lee Bee Nice edit, but I do not want to replace the original content. Unlike the tune, there can only be one loading screen.

@Lee Bee Actually SID tune is very similar to AY one. I would like something more like remix\inspired by, like in the official modern remake:



One tune 7 or more minutes long.

Thank you @Lee Bee .
The tune is from original 128k version, made by great Rob Hubbard.
It would be great to have longer and more varied version of it.

Updated both versions:
-Fixed the android remote attack bug:


-Android sits longer after shooting the ninja;
-Minor performance improvement.

https://zxart.ee/eng/software/game/arca ... thealfest/

The 48k version received the same performance improvement.

Fixed some bugs in both versions and improved performance of 128k version (it is now 5.6 times faster than original on average at max speed).

https://zxart.ee/eng/software/game/arca ... thealfest/

128k mod beta1:
- added game map;
- added new mission (semi-secret )


...
released:
https://zxart.ee/eng/software/game/arca ... fest/128k/

@Old-User
There's no space in 48k version to fit AY tune. Beeper one takes 1.25k and AY - 2.5k.

Added AY music.

I started working on 128k version. It builds and runs and is 1-2% faster than 48k version. Still no music yet.

So the recommended speed is 12.5fps? Probably I didn't get the message right. I was precisely asking for responsiveness at 25fps but everything else moving at a more moderate pace which would make sense. At 25fps, when a movement key is pressed the sprite starts moving in the screen around 1/25s la...

Made a short demo that shows how ugly it looks when the animation is double the game speed:

@berarma No, it doesn't make any sense. How to get 25 fps when the game engine runs at 12.5?

@goodboy
May be, I only measured speed at the beginning of the first level.

@Old-User
If there`s any difference you should be able to measure it. I recorded videos in emulator and compared them frame by frame. It is not very accurate but it is more accurate than just "see" or "feel".
By the way - 1 fps difference would be more than 20% for Outrun.

@AndyC
But sprites in Enduro are much bigger and active screen area is also much bigger. I think the Enduro engine is just more advanced.

@Old-User
But 48k version is not faster than 128k.

@toot_toot It is not a bug, Alan said that the game engine was improved in later games.