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Big Grin mine sweeper
Posted by: Jbizzel - 02-20-2022, 09:03 PM - Forum: Gallery - Replies (2)

I made a mine sweeper game for the zx spectrum.

the code is here. 


https://gitlab.com/JB1zzel1/mine-sweeper-zx-spectrum


I'll release it as a tap file with graphics when its finished.

The game is fully working as it is. just fine tuning everything now.

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  The sound effect thread
Posted by: worcestersource - 02-19-2022, 12:03 AM - Forum: How-To & Tutorials - Replies (3)

Hello everyone,

I thought this would be a nifty place to pop some routines to make sound effects without resorting to asm.

Code:
sub soundBwop()

    dim x, y as uByte

    do until x = 255

        out 254, (y * 8)

        let y = x

        do until y > 239

            let y = y + 16

        loop

        let x = x + 1

    loop

end sub

Which makes a nice 'bwop' sound. it'll also change your border colour, so add the border value to the out statement to stop it changing colour. For example, for the a blue border:
Code:
out 254, (y * 8) + 1

You can play around with this, such as changing the 16 for an 8, or making y count down so the loop duration gets longer each time.

Steve

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Big Grin Kardinal Kid - new game in zx basic
Posted by: Jbizzel - 01-30-2022, 11:37 AM - Forum: Gallery - Replies (2)

here

[Image: kk.jpg]

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  Testing a variable within a range
Posted by: worcestersource - 01-27-2022, 08:14 PM - Forum: Help & Support - Replies (11)

Hello!

I was wondering if there was a better way of testing whether a variable was within a range.

So instead of:

Code:
IF a > 0 and a < 30 then...

There was a neater and/or more memory efficient method? These sorts of tricks that can help us eke out every last drop out of zxbasic. Smile

Cheers,


Steve

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Big Grin Frogger 50
Posted by: Jbizzel - 01-23-2022, 02:53 PM - Forum: Gallery - Replies (2)

OK, I've been at it again. 

FROGGER 50

Changes:

Cool loading screen
Music - Cars by Gary Newman (Get it???)
New BeeperFX sound routines
The original boasted as many UDG as is possible - now there are even more!
Changes to the graphics
re compiled in ZX Basic
Many code tweaks, changes and improvements

keys are 1,9,0 - I couldn't bring myself to change them.




https://www.spectrumcomputing.co.uk/foru...f=3&t=6287

[Image: Frog.jpg]

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  snake game
Posted by: Jbizzel - 01-21-2022, 06:06 PM - Forum: Gallery - Replies (1)

He is a game I made while leaning ZX basic

It has 5 levels of speed and some nice beeper tracks Smile

SNAKE game

[Image: 0037666-load-1.scr&border=0]

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  Problem with compiling game
Posted by: retrofan - 12-29-2021, 03:03 PM - Forum: Help & Support - Replies (1)

On the spectrumcomputing forum we are struggling to compile a frogger basic game with Boriel Compiler.
https://spectrumcomputing.co.uk/forums/v...=21&t=6057
We have made some progress (in .bas file), but the game is still far from fully functional.

Any help would be welcome...



Attached Files
.zip   frogger_cass50.zip (Size: 4.96 KB / Downloads: 216)
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  ZXBC to target 128K BIOS ROM
Posted by: RandomiserUsr - 12-27-2021, 02:54 PM - Forum: Help & Support - Replies (2)

Very quick question,

 could ZXBC target a 128K BIOS ROM in the asm compile routines?

I'm expecting a "no" 

thanks 
Smile Smile

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  ORG 60000 - LEN(compiled code)
Posted by: zarsoft - 12-03-2021, 09:54 AM - Forum: ZX Basic Compiler - Replies (1)

Hi
I want to put the code on top memory.
How do I know the length of the compiled code?

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  for without next error
Posted by: maeloterkim - 10-10-2021, 02:22 PM - Forum: Help & Support - Replies (3)

Hi

I found that if i dont write a  next in a for the compiler only says "error: Unexpected end of file"

pointing to the LAST LINE  of the program

if i only have a few lines is "easy" to find the error

but if i have 2000 or more lines is a crazy thing to find the error

Can the compiler add a rule to search if every FOR have a NEXT and throw the error  "for without next" ?

This way is more easy to find the error in a BIG program with a lot of lines

You can look the example code



''EXAMPLE CODE WITH EXPLAINED ERROR

dim example as uByte = 0

for example = 0 to 10

    print example

'' THE NEXT MUST GO HERE IN LINE 9 but the compiler logically dont know that
'' BUT Can the compiler say  "error: for without next"
'' instead of "19: error: Unexpected end of file" ?
'' because if we have 2000 or more lines
'' and we dont know what happens
'' is a crazy thing search that error


print "end of program"

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