16K Hires Space Invaders

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chancanasta
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16K Hires Space Invaders

Post by chancanasta »

Game title : ZX81NVADERS

Game Author : Brian Lewis

Machine Specs : ZX81 with 16K RAM Pack

Freeware

Description:
Hi,
I did post this over in "Development" but it should probably go here

Hires version of Space Invaders for the standard ZX81 (with 16K RAM)

Screenshot:
Image

Video:
http://www.youtube.com/watch?v=hZ_CwkGkMxc


Download:
source Code , binary and tools available here -

http://www.perfectlynormalsite.com/zx81/invaders.php

Please, take a look and see what you think
ZX81 16K
RWAP
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Re: 16K Hires Space Invaders

Post by RWAP »

Ah - that's where the post went..

Looks really good - could you upload a .p file to make it easier for users to play rather than having to work from the source code?
chancanasta
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Re: 16K Hires Space Invaders

Post by chancanasta »

Hi,
it's probably not all that clear on the page, but there's a .p in the zip file with the source

Update: I've just put another link on the page for just for the .p file on it's own, also attached to this post
Attachments
invaders.p
ZX81NVADERS - by Brian Lewis
(8.97 KiB) Downloaded 373 times
ZX81 16K
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zsolt
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Re: 16K Hires Space Invaders

Post by zsolt »

Cool, :) and it does not require a modified ram pack.
Congrats,
Zsolt
ZX81 (8K), ENTERPRISE 128, [ZX SPECTRUM (48K,+,+128K,+2,+2A), TS1000, TS1500, TS2068, Cambridge Z88, PRIMO A64 (red)]
chancanasta
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Re: 16K Hires Space Invaders

Post by chancanasta »

@zsolt
Thanks for that, much appreciated
and yeah, I really wanted to write something that works on an real and unmodified ZX81
ZX81 16K
sirmorris
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Re: 16K Hires Space Invaders

Post by sirmorris »

:o Fantastic stuff!! :D
dr beep
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Re: 16K Hires Space Invaders

Post by dr beep »

It is pseudo-hires where you use a ROM pattern for the display of the graphics.
You can see it in the graphics that not all patterns are symetric.

Still a good job!
sirmorris
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Re: 16K Hires Space Invaders

Post by sirmorris »

Doing it this way means that it works on all unmodified ZX81s, which is a real benefit for many people. Getting something looking this good using pseudo hires must have been quite a challenge too!

Naturally I'd like to see a WRX powered ZXpand/modified rampack version..! ;¬)

C
chancanasta
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Re: 16K Hires Space Invaders

Post by chancanasta »

Hi,
thanks for the comments and that was a large part of doing it - to try and do this with the restriction of using only a 'standard ZX81' :)

Actually, I bought the ZX81 on a whim with the idea of just playing around with it. I had no idea the ZX81 dev scene was so alive and vibrant until I came across this forum, some pretty cool stuff around here :D
ZX81 16K
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yerzmyey
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Re: 16K Hires Space Invaders

Post by yerzmyey »

chancanasta wrote:Game title : ZX81NVADERS
Game Author : Brian Lewis
Machine Specs : ZX81 with 16K RAM Pack

Wow, good one, dude.
IN NIHILUM REVERTERIS - a big text-adventure game for ZX81: http://tiny.pl/g2m6m
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81: http://tiny.pl/q2m44
ZX81 COMPETITIONS 2007/2009: http://zx81.republika.pl/
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