Hallo, Gordon Freeman

Behold my first (and mb last) expirience with ZX Spectrum. ROBO STALKER game for Yandex Retro Games Battle 2019 contest (rgb.yandex)



Game about war robot hunter Vova that manhunts Ned Agent - escaped criminal







TAP file
BAS files
Graphics and texts
Data converter

Gameplay:
On every level you must restore power to teleportation machine, find navigation circuit board for teleportation to next level.

Default keys:
Left - z
Right - c
Jump - x
Use - s
Fire - Space
Menu - m

Weapons - 1-4

I used INKEY so only one key is processing in time.



-- Compiler params
--tap --org=24576 --optimize 2 --heap-size=256

I noticed that v1.9.7 introduced upwards scrolling when a message is printed in the bottom lines of the screen.

Is there a way to disable this? In Ad Lunam, each time something is printed at lines 22-23, and this happens often, the screen scrolls and the information contained in it disappears. This is very annoying 

Hi  

I didn't found the sintaxis for initialized data on 3D DIM array on this page

https://zxbasic.readthedocs.io/en/latest/dim/ 

2D is the only information 

If i want initialized data on a 3D DIM array  or 4D , etc  what is the sintaxis to do it?

Thanks

Hi, I am developing game with ZX Basic for a Spectrum 48k and when total size of compiled code approach up to 35-36K shit happens. Program can hang on or some pixels on screen are highlighted or INKEY stops to working.
Is there some limit?

I load code at address 24576 (24K) so I thought I have 40K room for free.

Hola,

este código no funciona más en todas las versiones de la 1.9.3 en adelante. Hasta la 1.9.2 funcionaba. Empleadas bajo Windows 10.

Debeo restar 1 de una variable a dos dimensiones, pero el resultado es siempre 0 aunque el valor inicial no es 1:

Hi everybody,

this is my first project made with ZX-Basic: Ad Lunam, a strategy/management game for the 48K ZX Spectrum where you are put in charge of the space program of the United States or of the Soviet Union. Starting from 1956, you must send a crew on the Moon and safely back to Earth within 20 years.

Before you even attempt such a task you must research new spacecraft and equipment, plan and carry out missions, recruit and train pilots, and try to stay ahead of your opponents.

The game has not yet reached its final stage, and is currently at version 0.2. Users should be able to play it to the end, although some features have not yet been implemented, fine tuning is needed and bugs might still be present. So beware!

For now, game and documentation are only available in English. Italian will follow, then Spanish, and possibly other languages as well. There's a very large amount of text in it, so translation won't be an easy task.

Download link will stay unchanged on every release. Here it is: <!-- m --><a class="postlink" href="http://www.alessandrogrussu.it/zx/AdLunam.zip">http://www.alessandrogrussu.it/zx/AdLunam.zip</a><!-- m -->

Feedback is welcome. Enjoy!

At the start of a program, some variables are declared and their values assigned accordingly, e.g.:

I'm continuing my porto of an old ZX Spectrum program.
Now the next problem:
It was text based and printed everything to the bottom of the screen and the rest of the screen was scrolled.

With the Boriel Basic the behavior is different: Once the bottom of the screen is reached printing rolls over and continues at the top of the screen.

Is it possible to change the behavior so that it scrolls?

How redirect PRINT to the printer? how makes LPRINT?

HI

Is possible redirect the output of the PRINT to the printer ?

Something like
PRINT #3; "This go to the printer"
that print on the printer

or something like
OPEN #4, "p"
that redirects the channel four to the printer and after this we can do

PRINT #4; "This go to the printer"

Is there some "easy way" to do that with the ZX basic ?

Maybe there are some library that makes the LPRINT of the ZX spectrum

Thanks

Hi,

I have proved an old program from the ZX Spectrum Basic to Boriel's Basic.
Some 700 lines of code.
The program can compile now and it is running on a Spectrum emulator.

However I get an error "3 Subscript wrong, 30:1"
wich is a very generic error coming from the "RANDOMIZE USR 32768".

Is there any way to tell where the error occurred in my source file?

Here is what I used for compilation: