Converted GX4000 .cpr - The topic (repository link in first post)

Started by remax, 00:14, 05 May 15

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spikemorrissey

Hi,
This thread used to be constantly updated with new games - Is anyone working on adding more please?
In particular I would love a GX4000 version of Pinball Dreams

eto


andycadley

Yes, it's not necessarily impossible to convert a 128 only game to the GX, depending on how it uses the RAM, but it's certainly a lot more effort than converting a 64k disk game.

CraigsBar

As I now have a 128k GX4000 (or GX4128k) is there any chance of the GB Tetris emulator having some keys remapped. Most importantly the Start Button (Return) mapping to the console pause button (P) that way the game will be fully GX4000 128k compatible but remapping keys on this level is WAY beyond my skills.
IRC:  #Retro4All on Freenode

CraigsBar

Quote from: eto on 10:19, 18 March 22
Quote from: spikemorrissey on 05:21, 18 March 22Pinball Dreams
that particular one requires 128KB of RAM
My GX4000 HAS 128k ram LOL :) left and B button on the GX pad would make excellent flippers.... snag is I suspect the game is on an special format disc that NoCart does not support :'(
IRC:  #Retro4All on Freenode

iXien

Quote from: spikemorrissey on 05:21, 18 March 22Hi,
This thread used to be constantly updated with new games - Is anyone working on adding more please?
In particular I would love a GX4000 version of Pinball Dreams
Yes, you're right, this thread is a little bit too quiet right now. the usual actors seem a bit taken up by other subjects, often personal. But I'm planning a little thing or two myself that I hope will get things going again :D .
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

Quote from: andycadley on 12:08, 18 March 22Yes, it's not necessarily impossible to convert a 128 only game to the GX, depending on how it uses the RAM, but it's certainly a lot more effort than converting a 64k disk game.
Nothing's impossible  8) . But I agree with you, the problem here is how datas are managed on disk, particularly on Pinball Dreams that make really exotic use of the disk access. More generally, if you want to make a "128Kb / 2 sides" floppy disk game working on 64kb computer (I mean if the game really requires 128Kb to store needed files), you will have to make a lot of modifications as you will need to transform a disk system (read and store files on memory) to a ROM management ("on-the-fly" usage of the files directly on the cartridge).
 
Some years ago I innocently asked to other members of Easter Eggs if it would be possible to convert our R-Type from 2012 on GX-4000 (this game requires both sides of the floppy disk and 128Kb RAM). and the answer is "no" without according a lot of time reworking on the game and changing all data access system ;) .
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

Quote from: CraigsBar on 18:56, 23 March 22As I now have a 128k GX4000 (or GX4128k) is there any chance of the GB Tetris emulator having some keys remapped. Most importantly the Start Button (Return) mapping to the console pause button (P) that way the game will be fully GX4000 128k compatible but remapping keys on this level is WAY beyond my skills.

128Kb in my GX-4000, it's a dream ;D . now you can launch converted games like Lemmings or Intouchables and hear the music that is missing when you play with 64Kb on GX-4000. In Dragon Ninja and robocop, digits will be played too!
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

dragon

Its more like ahh well we have bigger subrutine here..And this subrutine have a lot of access to memory(write). And you can't write anything in the rom only read, so basically you need change the entire code of the second 64kb ram bank... because nothing match you only can write en &c000 and the second bank can be estored in &5000 or so with the all the jumps inside de code and so.

So its basically made a dissembly of the entire code.

All "modern" games don't use the firmware use custom controller and don't work in nocart.Its responsability of the programmers made it gx4000 friendly,because they have the source code,thing that don't happend with old games. And they don't have lost in time as the 80 progammer guys.

iXien

Thank you for these explanations. Indeed, nowadays the most interesting would be to ask directly to the creators when talking about modern games ;) Hope more and more ones will find interest in making a GX-4000 friendly version of their games but knowing this, it's clearly a development choice maybe even from the beginning of a project.

http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

Ok, let's try an easy one to begin what will be, I hope, a new year of nice conversions for our sweet GX-4000 8) . Here is :

DEATH OR GLORY from CRL Group

UP = Accelerate
DOWN = Decelerate
LEFT = Turn left
RIGHT = Turn right
J1B1 = Fire

The aim of the game is for once not about destroying the ships that attack you but the mothership they defend. Once you destroyed enough of a mothership, you're automatically teleported to another one. Your bombs are only effective on the mothership, avoid enemis and bullets  ;) 
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

Now a very old game. I don't know why but I really liked it back in the days. Maybe because these maze games had a lot of success. So here is :

TOMBSTOWNE from Amsoft / Premier Software

You're trapped in a castle. You must find the 16 blue pages missing of a spellbook and go to a cauldron to cast a spell that will lift the curse. In order to progress, you will have to collect objects and associate them to others. Jump in front of a door to open it and search for candles to retrieve some energy.  if this game drives you crazy, I include a poked version offering unlimited energy and you will find a solution on CPC-Power.

LEFT/RIGHT on the d-pad to move our glorious hero, J1B1 to jump, UP to take/drop an object, Pause button to pause/unpause the game 
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

After TOMBSTONE, here comes :

DEATHSVILLE from Bubble Bus Software

Same system, same controls. If you like the first one, you will like the sequel  8)

LEFT/RIGHT on the d-pad to move our glorious hero, J1B1 to jump, UP to take/drop an object, Pause button to pause/unpause the game
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

iXien

Hi everyone,

this thread is really sleeping since many weeks. Hopefully @zisquier doesn't forget our beloved GX-4000 and just released a real new game. Not only a quick conversion, but a new game, previously unreleased on CPC, specially designed with love for cartridge standard on GX-4000/CPC+. Yes  8)

BLINKY'S SCARY SCHOOL

Initially created and published by Zeppelin Games in 1990 on C64, Spectrum, Atari 8-bit, Amiga and ST, this game never saw the light of day on CPC for obscure reasons, unlike its sequel Titanic Blinky in 1991. Zisquier corrects this terrible deficiency in a very beautiful way with this very nice adaptation based on the C64 version.
http://homebrew.amstradtoday.com, the only website dedicated to CPC homebrew games.

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