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<1…11121314151617…34>
  • P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…

    ... enemy sprites are colorless, just pixel map and mask.
    - I ... in vertical slices of 8 pixel width, with references to 8x8 ... with an 8x8 (a UDG) pixel grid.
    - There should be ... that this is not a fast paced scroller, but something more ...
    RMartins RMartins June 2016 Development
  • P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…

    ... there will be producing a fast graphics engine that can stitch ... about using character rather than pixel movement to avoid scrolling within ...
    kgmcneil kgmcneil June 2016 Development
  • P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…

    ... to cut the upper 32 pixel lines, from the scroll area ... , I'm referring to 8x8 pixel blocks, not really a UDG ... there will be producing a fast graphics engine that can stitch ... about using character rather than pixel movement to avoid scrolling within ...
    RMartins RMartins June 2016 Development
  • Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…

    ... ' pictures' for getting pixel movement. Moving a 1 pixel wide vertical bar ... extinguish your available UDGs really fast, specially for 16x16 sprites.
    RMartins RMartins July 2016 Development
  • New Game: Vallation.Okay, this has been hinted at by both Redballoon and me a couple of times, but the damn thing is finally done now. :-D [b][url="http://tardis.dk/w…

    ... the explosion can be 1 pixel off, but who notices that ... . I tried to keep it fast AND short so it jumps ...
    Sokurah Sokurah July 2016 Games
  • Some Graphic Coding & Audio help.Hello my fellow WoS'ers I am in the process of writing some code for graphical purposes - I have Z88DK raring to go but I do not know how to take…

    ... addresses to move up/down pixel lines and so on).
    fast but you can't randomly ... /> I have some ideas for pixel shifting and animation that I ...
    Alcoholics Anonymous Alcoholics Anonymous August 2016 Software
  • why does line length affect angle?I am using Plot Draw to make a V like drawing. It's part of an intersection on an isometric path. You would expect one half to be the inverse coordin…

    ... machines.

    Still, this fast line drawing routines has a ... fractions, and fractions on a pixel screen will always result in ...
    Timmy Timmy November 2016 Sinclair Basic
  • How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…

    ... bit rough unless it's fast.

    As for speed ... that to your advantage to pixel scroll it in sections.
    joefish joefish November 2016 Development
  • How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…

    ... ]
    that's a fast, 4 pixel scroll of one scan line ... tricks besides RLD for 2 pixel scrolling?

    This is ... came up with for 2 pixel scrolling.

    [code]
    rl (hl) ; screen contents 1 pixel left
    rl a ; and ...
    tstih tstih December 2016 Development
  • ZX Spectrum, ZX81 and Middle SchoolersToday I gave a talk to 120 US middle school kids (7 grade) about computer science and careers in programming. I also gave them a taste of programmin…

    ... 't confuse "modern" with big / fast / complicated. There are some modern ... 't hook up some RAM + pixel-generating [i]something[/i] to ...
    RetroTechie RetroTechie December 2016 Sinclair Miscellaneous
  • Project: ZX OpusHello my friends, I have been in need of a push lately so I thought if I post some of the work for this project here you guys (and gals) can help me …

    ... This makes things easy and fast but it takes up a ... just understanding how character and pixel coordinates map to a ... thirds vertically
    SSS = vertical pixel within character square 0-7 ... these display file addresses from pixel or character coordinates can ...
    Alcoholics Anonymous Alcoholics Anonymous March 2017 Software
  • If Joffa made Harrier AttackHarrier attack was interesting when it first came out because it has an interesting premise of going out and coming back to the aircraft carrier. It…

    ... , the scrolling has to be fast when you increase speed and ... of with 2 or 4 pixel scrolling. It probably could be ...
    dmsmith dmsmith March 2017 New game ideas
  • Can I name a subroutine and then call it by name?No thats not really exactly the problem. I wrote 4 lines of Basic that draws an 8x8 square and then told it to check x,y and subtract 4 from x or y t…

    ... 'm seeing how fast I can get a horizontal pixel scroll in ...
    Battle Bunny Battle Bunny May 2017 BASIC
  • ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next

    ... of 16x16 size with each pixel any colour. There doesn't ... . The fpga should be very fast too so it should be ...
    Alcoholics Anonymous Alcoholics Anonymous May 2017 Sinclair Miscellaneous
  • ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next

    ... the memory could be so fast, especially if the CPU speed ... (i dunno, maybe even the pixel data??)
    Now don't ...
    Lethargeek Lethargeek May 2017 Sinclair Miscellaneous
  • What (Speccy) game are you currently playing ?(Quite a few threads on what youre listening to, watching etc) What Speccy game are you currently playing ? After playing a LOT of Invasion of the …

    ... clear and the game is fast but it's really, really ... not stepping on the correct pixel so the clash was not ...
    ZX_Steve ZX_Steve July 2017 Games
  • z88dk terminalsto set up a terminal a bunch of numbers are needed: m4_zx_01_output_fzx(_window_1, 0x2330, 0, 0, 1, 14, 1, 19, 0, _ff_ao_Prefect, 14, 0, 14, 8, 1…

    ... fast mode scrolling.

    Otherwise, it does pixel scrolling. For the pixel ... ~14000 cycles to the top pixel line, then 224*192 cycles ... can start updating the top pixel row after the raster is ...
    Alcoholics Anonymous Alcoholics Anonymous July 2017 Development
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... is, ZX7 algorithm achieves very fast optimal compression using a fairly ... />
    // palette index for this pixel value in the bmp is ... != size; ++i) // go through each pixel
    umem.buffer[i] = palindex ...
    Alcoholics Anonymous Alcoholics Anonymous August 2017 Brand new software
  • What is the maximum fps the spectrum can achieve?I have been doing some reading and from what I understand the Spectrum outputs a PAL signal, but that means it will display @50fps or @25fps? If t…

    ... the pixel density increases (high definition and above resolutions), "blurring" of fast ...
    1024MAK 1024MAK August 2017 Hardware
  • Gandalf - A ZX Spectrum platformer that looks rather nice indeed![img]https://1.bp.blogspot.com/-BuVmuvmRXfg/WYhRw0z0lMI/AAAAAAAAisA/LFKD4SipiSkm3x0FsCNjJCRsCnHgE6W6gCLcBGAs/s640/GandalfZX.jpg[/img] [quote]As ma…

    ... line of the Spectrum's pixel display before the main effect ... be running 1/5 as fast. If you must, use Boriel ... [/i] has a lot of fast movement. You could optimise a ... sprites can move in 8-pixel steps, even better.
    joefish joefish August 2017 Development
  • ive found an attr scrolling routine but i want to remove the smaller scroller within it, etc.https://pastebin.com/K4nG3xbX also i would like to be able to change the colours and not have a shadow. http://www.worldofspectrum.org/pub/sin…

    Here's the fast version, just doing a plain ...
    LD A, (L_FB76) ; CHR$ pixel column
    LD C, A ...
    LD A, C ; CHR$ pixel column
    OR A ; check ...
    Battle Bunny Battle Bunny November 2017 Development
  • Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…

    ... break words, but clips it, pixel perfect, on the rectangle boundary ... -- main complication is making it fast for arbitrary sized font with ...
    tstih tstih January 2018 Development
  • Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…

    ... -- not enough registers for reasonably fast and thread safe implementation, as ... can be changed to do pixel precise clipping to arbitrary rectangles ... window (it uses a supplied pixel window for rendering), so it ...
    Alcoholics Anonymous Alcoholics Anonymous January 2018 Development
  • 1988-2018..OK This feels a little odd since it's always WhenIWasCruel who does these threads, but I've had the proxy approval from the man himself to go ahead a…

    ... there is a colourful 8-pixel horizontal scrolling game where you ... /3 screen full 8 way fast scrolling and a really tough ... brilliant. The 8 way 2 pixel scrolling is really nice too ...
    Timmy Timmy March 2018 Games
  • How to stop a flickering character erasure?I'm trying to figure out how to build a moving sprite. Eventually it will be made up of several UDG's. However its early days yet so I'm experimentin…

    ... movement:

    -Forget about pixel or half character movement by ... , and you will see how fast and easy you will move ...
    IvanBasic IvanBasic May 2018 BASIC
  • Not exactly an idea for a new game...... or even something new but more of an idea for existing games. However, I don't know if this has been tried before (or if it is possible to pul…

    ... swap the screens on alternate pixel lines so part of both ... fit in the 16K of fast RAM you have left between ...
    joefish joefish August 2018 New game ideas
  • Printing text, part MMXIIXI'm pretty sure there's been a zillion threads about this already, and I don't think it's the first one by myself either, but here goes. Proportiona…

    ... tested a bunch of 8 pixel high fonts and aside from ... .

    The routine is "fast enough" for now, but I ...
    Sol_HSA Sol_HSA December 2018 Development
  • Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…

    ... or to the left one pixel whenever the stepping algorithm demands ... routine that works in 2-pixel horizontal steps to draw long ... see some frames drawn really fast and others not as you ...
    joefish joefish March 2019 Development
  • Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…

    ... faster (about 7 cycles per pixel) for long lines is to ... and grows in size too fast for the same gain.
    Lethargeek Lethargeek March 2019 Development
<1…11121314151617…34>

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