Sinclair ZX80 / ZX81 / Z88 Forums

Some more progress...

Use
; Jump = 1,Q,A,zero,P,enter,space
; Shoot = 2,W,S,Z,9,O,L,period

No collision detection yet...

Comment welcome.
Bean

Paul, I like that idea. I'll try that.
Thanks,
Bean

Parallax scrolling test...
Graphics are still blocky, just threw it together to test the scrolling.

Comment welcome.
Bean

That would be great. Also if anyone can make the music that would really be nice.
I don't have a sound chip or I'd try it myself.

Bean

Here is my initial design. I may change the ship at the top to graphic characters because it is kinda hard to see. The game play will be in assembly. And the source will be available. There will be parallax scrolling. The buggy wheels alternate from "XXX" to "+++" to give that rolling look. Any comm...

I was thinking about making "Moon Patrol" for the ZX81.
Was looking for already existing versions for inspiration, but I haven't been able to find any.
Does anyone know of any "Moon Patrol" type games for the ZX81 ?

Thanks,
Bean

I use a ZXpand on my TS1500 by plugging the TS2040 printer in first. Works fine.

Here is the code. Use it like this: 0 REM machine code 10 FOR A=0 TO 10 STEP 0.1 20 PRINT USR 16514;A 25 PRINT 30 NEXT A When it prints a value it does not move the print position to the next line, even if you don't have a ";" at the end, hence the need for the seperate PRINT line. The value ("A" in...

I'm having a problem with my code. It is printing the fractional part TOO perfectly. For example: 999.9 gives 999.9 But 9999.9 gives 9999.900002 and 99999.9 gives 99999.899994 and 999999.9 gives 999999.899903 I think the value I give is the actual value that is stored in the 5 bytes, but that is not...

I am so glad that someone is working on this...Printing of values it terribly slow on the ZX81, and it makes the whole computer seem much slower than it really is. I am actually working right now on a program that needs to print floating point values quickly. It is a program that makes the screen be...