Mushroomman ZX81

[dr beep]

For years I had the idea to make a ZX81-port of this PC game that was ported to the ZX Spectrum by Hajo Spuunup and improved by me.
I already made some hires graphics that I would need to make the game look decent on a uncoloured ZX81.
Later I was thinking that the game should run with ANY RAM-pack so it had to be pseudohires but I never made good graphics for it.
WIth the discovery of my "quaracterdisplay"-method I was able to create all the grpahics I needed and I started making the port.

I still found several problems. The display is working but the 5 transporters were not distinguiable enough to make the game work.
I have altered the transporters and now I think the game can become playable on a standard ZX81.

Since this is the first game using this method I was thinking of releasing it at Cronosoft but on the other hand I want it to be accesible to
evryone so I will release it for free when ready.

In this thread I will tell about the progress. Comments are welcome!

[dr beep]

So far I have taken the compressed levels from the ZX Spectrum and made the read/display routine on the ZX81.

I have decided to dived the 188 levels in 2 parts. 100 and 88.
The reason is that the compressed levels are built in blocks of 20 levels.

At this moment I have movement and I am working on reading what the player is taken.

[dr beep]

Left top: levelnumber
Right top: levelcode (still to add)
4 numbers with items of money, keys, air and cement

The levelname

and the level

[dr beep]

So far items can be taken (keys, oxygen, money, cement)

Movement through water has a bug when moving left.

[dr beep]

Bug solved and now working on handling other items (bean, gun, bomb, portals)

[dr beep]

Bean can now be pushed, 3 messages will be printed
YOU FOUND AN EXIT
YOU DROWNED
YOU FELL IN A HOLE

next: use of gun

[dr beep]

To have the gun properly working I need to have the portals working.

Portals now working, now gun blowup portals and bomb is next

[dr beep]

Gun now fully working, bomb is last to do, then all extras like levelnumber etc...

[dr beep]

Here is a demo for the first 16 levels.

Controls
QAOP
and
R for restart current level

MRM-demo.p

(8.66 KiB) Downloaded 45 times

[mrtinb]

I found the online version and played it, and now I tried your version.

Wow! This is a great game. I like it!