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Metal Slug port for MegaDrive / Genesis 16 bits console - 100% Digital Sound

Posted: Tue Dec 14, 2021 11:57 am
by masteries
Greetings from Spain,

This Metal Slug port is a conversion from my own Metal Slug port for Atari STE computer


Video of the MegaDrive / Genesis version (currently Work in progress conversion):


https://www.youtube.com/watch?v=-hl3hkKaHa8



Video of the Atari STE version:



https://www.youtube.com/watch?v=gyRBcTnn-5M&t



Mainly all the game engine is being ported from Atari STE to MegaDrive / Genesis.

Audio playback is 100% based on digital samples, using a custom made sound driver that provides 3 channels mixed at 16 KHz.
Samples are compressed, in order to save ROM space, and Real-Time decompressed using the Z80 processor.

Currently, the same samples and graphics from the Atari STE version takes only 1 MB of MegaDrive / Genesis ROM space,
while the STE version takes 3.6 MB


There is a high detailed background composed of up to 8600 tiles, and a parallax background.
Background uses up to 61 different colours.
Custom MegaDrive / Genesis tools are made to create map graphics data,
and to provide colouring to the map tiles.

Many things are still pending to be ported to MegaDrive / Genesis,


The idea is to create a Metal Slug style Run&Gun engine for multiple systems;
while the graphics and audio for an incoming new game is being in development

Stay tuned!

Posted: Sun Feb 13, 2022 10:30 am
by masteries
Work in progress: Entities management system & collision scheme


- Tested on Real Hardware, a Megadrive 1 plus OSSC -


https://www.youtube.com/watch?v=kcFOhYul6cY

Re: Metal Slug port for MegaDrive / Genesis 16 bits console - 100% Digital Sound

Posted: Mon Jan 30, 2023 7:07 am
by davidjohn68
The plan was to construct a Run&Gun tool in the vein of Metal Slug for many platforms while the graphics and audio for the future new game were still being worked on.
wordle game