Search found 1079 matches

by dr beep
Sun Apr 15, 2018 9:58 pm
Forum: Welcome Area
Topic: Hello from Canada
Replies: 15
Views: 365

Re: Hello from Canada

Hello from Canada, ......... I am now teaching my son BASIC on it with some breaks to play some 1K gems like Qbert and Flappy Bird. ......... Attached photo of my ZX81 playing Qbert on my vintage portable Sony Trinitron (the only TV the Timex seems to work on without the screen looking super dark) ...
by dr beep
Thu Apr 05, 2018 4:29 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

Re: New game idea

Last night I spent almost one hour playing the game on the emulator and still had not revealed half of the picture, so I had to save a snaphot... The bad thing is that you need a lot of time for this game - but on the other hand, this is unbelievable considering that it is a 1K game! Well, you can ...
by dr beep
Mon Apr 02, 2018 12:08 am
Forum: GAMES
Topic: New ZX81 Games
Replies: 112
Views: 33622

New ZX81 Games

Name of Software: Hidden Picture Author: Johan "Dr Beep" Koelman Release Date: 01/04/2018 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K Lowres Description: Draw the hidden picture Screen.png Download link (if available for download): draw_p001.p Second picture: draw_p002.p Commercial / Publ...
by dr beep
Sun Apr 01, 2018 11:39 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

Re: New game idea

A picture of 18 lines can be drawn in 1K

So make your screen in 60x36 pixels and I can make it your own hidden picture game,
by dr beep
Sun Apr 01, 2018 8:44 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

Re: New game idea

So here is the first working version. 1 thing: not in 1K yet. Controls QAOP Plot with 1,2,3,4 You need to visit each field. When you see a "*" thee field is ok. When you see a chessboard-cursor you need to set the number of pixels shown above. After setting the right number of pixels a check is done...
by dr beep
Sat Mar 31, 2018 11:07 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

Re: New game idea

I needed 16 4 Tstate instructions with bit 6 set that work It is also possible to used instructions that are more than 4 t states in d-file. As long as scanline timing is maintained. Regards Andy True, but the display must be the same when the "hidden" pixels are shown. Therefore it must be 4 on al...
by dr beep
Sat Mar 31, 2018 9:25 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

Re: New game idea

Well, initial setup is working. I needed 16 4 Tstate instructions with bit 6 set that would run but not crash the game. I have foound these. With these instructions (a few also used in LODERUNNER) I can store data on screen but not show it. When your cursor comes to a field below the screen the numb...
by dr beep
Sat Mar 31, 2018 12:30 pm
Forum: GAMES
Topic: New game idea
Replies: 8
Views: 346

New game idea

Let me set some expectations: It will be lowres. It will be 1K It will be fullscreen The idea: Do you know the app SANDBOX? You set all colours to make a picture. I think I can hide a fullscreen picture that you need to draw. Per character you will get info how many pixels to fill. You need to figur...
by dr beep
Sat Mar 31, 2018 10:45 am
Forum: GAMES
Topic: LODERUNNER on the ZX81
Replies: 20
Views: 779

Re: LODERUNNER on the ZX81

Looks great in colour. Now if I had a character for the enemies that like player could be half cursor.... Btw you could make a man with leggs together and arms waving in half byte an other halfbyte. See my “wiwo dido and the case of the broken timemachine” on the ZX Spectrum for it. Other advantage....
by dr beep
Fri Mar 30, 2018 6:09 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 112
Views: 33622

New ZX81 Games

Name of Software: Loderunner Author: Johan "Dr Beep" Koelman Release Date: 30/03/2018 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K, ZXPAND-joystick possible Description: Collect the gold and avoid the enemies, 150 levels of fun. Level36.png Download link (if available for download): (mail...