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  • Edge Grinder, how would YOU do it?I always meant to post about this and AndyC reminded me in the 'vs' thread in games. [QUOTE=AndyC;808887]The thing I love about threads like this is…

    ... from other scrollers. If my scrolling / sprite code is knocking around ... isn't too heavy a scrolling overhead. But its 128K only ... better to look at the engine of [I]Steel Eagle[/I ...
    dmsmith dmsmith January 2015 Development
  • Simple text scroller, first character problemin a text scroller, whole line scrolled to the left by 1 pixels using RL(HL) ; DEC L method. But at the rightmost character must be printed immediate…

    ... buffer to store the text being scrolled rather than doing the scrolling ...
    dbolli dbolli January 2015 Development
  • 2014 Games ListNote: Due to forum update policies, the latest version of the list will always be found somewhere near the end of this thread. [old] Any problems …

    ... Demo[/B] (a nice parallax scrolling demo) [[URL="http://www.worldofspectrum ... /> [B]anteater[/B] [I](Beeper Engine)[/I][[URL="http://www.worldofspectrum ...
    Timmy Timmy January 2015 Games
  • FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…

    ... /> (FYI, in my own adventure engine I use a somewhat different ... lower layer decide whether the buffer is full and i can ... control code to "flush the buffer", but obviously you don't ...
    Timmy Timmy January 2015 Brand new software
  • Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…

    ... (Oct 2014) for multiscreen levels (scrolling up/down only - Rainbow Islands ... just copying the game screen buffer around and watching how fast ... Bomb Munchies game - a huge scrolling map..... but it is... far ...
    MatGubbins MatGubbins January 2015 Brand new software
  • Dominator, keyreadCan anyone suss out the keys in [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0001425"]Dominator[/URL]? And if so post a patch to give QAOP…

    ... come up with a good scrolling engine, music, support various joysticks, yet ...
    Jumping Stack Jumping Stack January 2015 Development
  • A vehicle for wireframe engineHi, I'm playing with wireframe graphics right now. I'm open for ideas for (simple) game that would use wireframe engine. So if you have an idea, plea…

    ... working with a vector graphics engine would be quite tricky. Firstly ... limit the usefulness of the engine, although some simple games might ... off writing to a back buffer and blitting it to the ...
    Matt_B Matt_B February 2015 New game ideas
  • A vehicle for wireframe engineHi, I'm playing with wireframe graphics right now. I'm open for ideas for (simple) game that would use wireframe engine. So if you have an idea, plea…

    ... off writing to a back buffer and blitting it to the ... in this engine already and the problem is with unsynchronized buffer copying.
    Ralf Ralf February 2015 New game ideas
  • A vehicle for wireframe engineHi, I'm playing with wireframe graphics right now. I'm open for ideas for (simple) game that would use wireframe engine. So if you have an idea, plea…

    [QUOTE=Ralf;818346]I supposed that it is done in this engine already and the problem is with unsynchronized buffer copying.[/QUOTE]

    Yes, you are correct, there is backbuffer already.
    catmeows catmeows February 2015 New game ideas
  • Emulator refresh ratesOkay, I'm going to ask a really lame, beginner question ;) Zx Spectrum refreshes screen 50 times per second. I'm running emulator on PC which says …

    ... was recently experimenting with fast scrolling on Spectrum(examining existing games ... trying to make my own scrolling engine. I mean framerates like 50 ... it just me or Spectrum scrolling in emulators generally looks rather ... works this way with scrolling too.
    Ralf Ralf February 2015 Emulators
  • Scrolling in BASICI remember a few BASIC typeins for other machines that claimed to be scrolling the screen. Obviously vertically its not too difficult - once you dis…

    ... in the CSSCGC to provide scrolling from BASIC. My principle is ... fill-in data from a buffer. I haven't quite decided ...
    joefish joefish March 2015 Sinclair Miscellaneous
  • New game: Stormfinch<p><img src="http://i1142.photobucket.com/albums/n608/daveyboyhughes/latestload_zpskxzef63y.gif"><img width="416" height="350" style="width: 376px; h…

    Dave, how much time is left for scrolling? Are you limited to the two rows at the bottom of the screen?

    And I love how the engine allows the colour design of the sprites, the detail you've added is just incredible.
    BiNMaN BiNMaN May 2015 Brand new software
  • New game: Stormfinch<p><img src="http://i1142.photobucket.com/albums/n608/daveyboyhughes/latestload_zpskxzef63y.gif"><img width="416" height="350" style="width: 376px; h…

    ... Nirvana engine.  When I said preshifted I meant for the scrolling row ...
    R-Tape R-Tape May 2015 Brand new software
  • Arduboy - 8-bit Gameboy-esque handheldLooks like a bit of fun. If it becomes available, and the price is consistent with the US price, I'd have one.<br><br><a href="http://www.technewswor…

    ... seen one where the transfer buffer is less than that and ... the pixel array. It makes scrolling and buffering in such little ...
    joefish joefish May 2015 Chit chat
  • Megatree DevelopmentHi All, I have been messing around with developing a concept for the unwritten game Megatree. Here is a video of what I have so far written on a 48…

    ... . The single 2 screen high scrolling up and down level is ... scrolling screens up and down only. 
    List of done game engine ... so far.
    1) 16X16 text scrolling with original ... /Down 2 screen high level scrolling.7) Lives left drawn to ...
    stevebroad stevebroad May 2015 Development
  • Powerslave/Exhumed - the Sega Saturn version is now on the PC!<font face="Arial, Verdana"><span style="font-size: 10pt; line-height: normal;">As you might know, the N64 version of id's first person shooter, Doom…

    ... cam the engine that's been used to power many scrolling beat ...
    Bermondsey Bob Bermondsey Bob June 2015 Chit chat
  • Powerslave/Exhumed - the Sega Saturn version is now on the PC!<font face="Arial, Verdana"><span style="font-size: 10pt; line-height: normal;">As you might know, the N64 version of id's first person shooter, Doom…

    ... cam the engine that's been used to power many scrolling beat ...
    dm_boozefreek dm_boozefreek June 2015 Chit chat
  • Powerslave/Exhumed - the Sega Saturn version is now on the PC!<font face="Arial, Verdana"><span style="font-size: 10pt; line-height: normal;">As you might know, the N64 version of id's first person shooter, Doom…

    ... cam the engine that's been used to power many scrolling beat ... that they were the same engine somewhere, but I guess that ...
    Bermondsey Bob Bermondsey Bob June 2015 Chit chat
  • Trial version of CharAde graphics engine for Sinclair BASICA trial version of my <span style="font-weight: bold;">CharAde</span> graphics engine for Sinclair BASIC is now available. It consists of a block of …

    ... slightly different.

    That scrolling demo is actually only moving ... scrolling its data. It simply offsets when it copies from one buffer ...
    joefish joefish June 2015 Sinclair Basic
  • Multiplying. Again.Is there a faster way of hl=a*32 than doing add hl,hl 6 times?<div><br></div><div>I get the feeling that working with 8 bit registers for most of it …

    ... back-screen in the CharAde engine I pre-rotate them right ... numbers back from the screen buffer, forgetting that the values are ...
    joefish joefish June 2015 Development
  • New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…

    ... /trial-version-of-charade-graphics-engine-for-sinclair-basic
    I ... , but it'll do your scrolling for you, let you print ...
    joefish joefish June 2015 Brand new software
  • Hungarian notation for asm - Yes or No ?There is thing called hungarian notation - https://en.wikipedia.org/wiki/Hungarian_notation Basically it is all about using prefixed indetifier to i…

    ... ;shift sprite type A in buffer using shift table
    ;one ... 3 grahpics byte
    ;HL-buffer address
    ;DE-proper shift ... /> SSA_M1
    OR 0 ;when scrolling mask, lit pixels appear from ... ),A ;write 1st byte in buffer

    INC HL ...
    Ralf Ralf July 2015 Development
  • Could ELITE's wireframe graphics be improvedWas watching this video last night comparing the BBC and Spectrum version of Elite: https://www.youtube.com/watch?v=Ov4OAteeGWs It seems that the…

    ... it looks like the wireframe engine used all sorts of tricks ... a 1-bit linear screen buffer, converted the algorithms directly from ...
    GReW GReW August 2015 Games
  • Which games would you remake? Or like to see a mockup of?We all have a list of titles that we know or felt was not good enough or simply rushed to market without thought or effort. So which titles would you…

    We also need a point and click adventure engine too as well as a solid side scrolling beat-em-up engine. Monkey Island! :)

    All of this will need to run on a higher clocked spectrum though so all development will need to happen on an emulator
    Rebelstar Rebelstar August 2015 New game ideas
  • I feel they could have done this.After reading the ZX Spectrum ULA, I learned about how the ULA detects if the Z80 if going to access memory in the next cycle and stops it if the ULA…

    ... /18 rows (out of 24) scrolling. Any delays would likely reduce ... the screen and blitting that buffer to the screen at once ...
    Timmy Timmy August 2015 Hardware
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... you redrawing entire buffer during each frame while scrolling? Actually during ... vertical scrolling you don't ... start at beginning of the buffer. While drawing to screen ... drawing in the middle of buffer, go to bottom and ...
    Ralf Ralf September 2015 Development
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... like Raiden.

    My engine reads tiles from a map ... at the top of the buffer. The buffer then gets scrolled down ... of the action over the buffer before it was drawn to ...
    Atari_Jetman Atari_Jetman September 2015 Development
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... I posted above. Assuming your buffer starts at address $b201 ... step and implement a circular buffer as others suggested, thus ... to move your data when scrolling. Although the methods I described ... useful when copying data from buffer to screen.

    ...
    Einar Saukas Einar Saukas September 2015 Development
  • Advices for double buffering ?Hi, I'm currently coding graphics routines for a forthcoming game, I use a double buffer (the dummy screen is at $e000, the code at $8000) to pro…

    ... need to copy from buffer to screen, you have ... everything you have changed in buffer since last copy (perhaps ... then only copy from buffer to screen what really ... not a scrolling game, then don't use a buffer, just ... * If it's not a scrolling game, then don't move ...
    Einar Saukas Einar Saukas September 2015 Development
  • Full-screen 32 columns bicolor engine NIRVANA+I'm glad to announce the release of [b]NIRVANA+ ENGINE[/b], providing support for bicolor graphics (multicolor 8x2) in 32 columns for all standard Sp…

    ... could just use a small buffer centred on the main character ... of where the Manic Miner engine alters attributes: these are movement ...
    zub zub September 2015 Brand new software
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