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<1234567…34>
  • is there a sprite editor for the pc that lets you import pics and save them as spectrum udgs?is there a sprite editor for the pc that lets you import pics and save them as spectrum udgs or sprites into memory?

    is there a sprite editor for the pc that lets you import pics and save them as spectrum udgs or sprites into memory?
    digital digital August 2017 Development
  • Codies help? Werewolves of LondonHi All, never one for shying away from the deep end, having only just dipped my toe in to the world of machine code I find myself trying to find out …

    ...
    The loop is erasing a sprite in a
    back buffer (an ... finished drawing).

    A' = sprite height (see 50552-50554)
    C = sprite width
    B = counts ... drawn to screen where the sprite
    graphic was (50547 ...
    Alcoholics Anonymous Alcoholics Anonymous March 2006 Sinclair Basic
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... is a flicker-free software sprite engine based on a ... differential update algorithm. It achieves flicker-free status by never erasing ... addresses. When a sprite is drawn, a member of struct ... active on display following a move sprite function.
    < ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • A typical sprite listing to analyse, please?Hi all, Would anyone be interested in helping out with my ongoing Assembly studies by posting up, posting a link to or mailing me a typical sprite l…

    ... up, posting a link to or mailing me a typical sprite listing to ... 'mechanism' of drawing and undrawing a sprite as it moves along the ...
    Jagd Tiger Jagd Tiger September 2009 Development
  • Sprite Graphics TutorialHi everyone, Would like some feedback on the following: I am thinking of writing a Sprite Graphics Tutorial, ie. how to best program and implement …

    ... /> I am thinking of writing a Sprite Graphics Tutorial, ie. how to ... best program and implement Sprite graphics. I would hope to ... ways of programming sprites on a spectrum with annotated assembly listings ...
    dmsmith dmsmith August 2004 Development
  • Best method for sprite collision detectionHi, I have been trying to incorporate collision detection into a sprite routine I writing. The following is what I have come up with so far: POP D…

    ... to incorporate collision detection into a sprite routine I writing.
    ... DE ; e=mask, d=sprite image
    LD A,(HL) ; hl = ...
    NC0:
    LD A,(HL) ; draw sprite as normal
    AND ... /> OR D ;
    LD (HL),A ;
    INC L ;
    < ...
    dmsmith dmsmith August 2005 Development
  • z88dk + splib2: another question (sprite instancing)I'm making some tests with z88dk+splib2, with the idea of creating a game sometime in the future, and I have come across a problem. Let's suppose I …

    ... tiles, I must create a sprite for every single instance ... />
    That means a lot of malloc space. In ... 14 bytes allocations per sprite, a lot of memory if ... avoid that and use a kind of "sprite instancing"? I mean ... and say "I want sprite 1 drawn at coordinate ( ...
    utopian utopian October 2005 Development
  • Attn: Dunny Re: Basin[QUOTE=Dunny;282407]Just out of interest, is there any demand on these boards for a standalone version of BASin's graphics tools? It'd be just the U…

    ... 'd be just the UDG/Sprite editor/animator, SCREEN$ paintbox ... there are two ways of erasing a certain area: to set ink ... :)

    -Option to have a relocatable, optional window that shows ... happened to that selection-to-sprite or selection-to-udg feature ...
    zxbruno zxbruno November 2008 Development
  • Jet Set Willy sprite evilities.Hello everyone. I am currently trying my hand at modding Jet Set Willy, but there is a big problem - I can't use half of the sprites. I am using JSWE…

    ... Set Willy, but there is a big problem - I can ... editor, and select a sprite, there's a big list of hexadecimal ... pliers, and four sprites of a spinning book thingy. I ... I enter it in, the sprite is STILL pliers!! How ... earth do I change the sprite so that only the ...
    nixot nixot January 2010 Development
  • Simple SpriteHow do you draw a sprite on the screen? For example i want to draw a smiley face sprite and would like either a link to a tutorial or a very well com…

    How do you draw a sprite on the screen? For example i want to draw a smiley face sprite and would like either a link to a tutorial or a very well commented demo. Any assistance would be greatly appreciated.

    Sincerely,

    Ooze48k
    ooze48k ooze48k October 2011 Development
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    ... to worry about writing a sprite routine, a joystick handler and you ... /****************************************

    sp1 Sprite Demo 1

    A simple demo program ... {
    struct sp1_ss *s; // sprite handle returned by sp1_CreateSpr()
    Timmy Timmy January 2012 Development
  • NES Punchout - Bald Bull sprite for zx spectrum[img]http://i1320.photobucket.com/albums/u523/Tony_Shaft/baldbull_zpsef1b3372.png[/img] enjoy..had a little help of a sprite ripper for this and it …

    [img]http://i1320.photobucket.com/albums/u523/Tony_Shaft/baldbull_zpsef1b3372.png[/img]

    enjoy..had a little help of a sprite ripper for this and it worked out very well
    morcar morcar March 2013 Sinclair Miscellaneous
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... screen).


    [*][B]Sprite support[/B]: The [B]NIRVANA ... want to animate or move a sprite, you just need to update ... * does). This is intentional. a full-screen game will typically ... to animate them. In practice, sprite support should be much more ...
    Einar Saukas Einar Saukas November 2013 Brand new software
  • How do you put the sprite onto the image in Tommygun?I created a picture - screen size image - in monochrome. I created a sprite of a walking man. I want to make the sprite walk across the image. Is thi…

    I created a picture - screen size image - in monochrome. I created a sprite of a walking man. I want to make the sprite walk across the image. Is this possible? How is it done?
    mik3d3nch mik3d3nch June 2017 Development
  • Calculating coordinates for a curveI need to write some code that will calculate the arc of a curve so that I can draw a sprite at each location to simulate a ball being thrown. The an…

    ... so that I can draw a sprite at each location to simulate ... a ball being thrown. The angle ... travel will be defined by a velocity although I’m not ...
    Mr Millside Mr Millside August 2017 Development
  • hi res udgs on a zx81iv tried to use the software farm hi res program to re create a sprite. unfortunately, it looks nothing like the original. it only has 128 possible b…

    ... res program to re create a sprite. unfortunately, it looks nothing like ... combinations for each line on a 8x8 udg and some of ... dont wont anything that involves a hardware mod, either, if possible ...
    digital digital October 2019 Chit chat
  • Tricks to make mirror image of a graphic?I've been working on a sprite routine for lots of sprites and animations. I'm only storing right facing graphics, and converting them to left facing.…

    I've been working on a sprite routine for lots of sprites ... doing it. It draws a character square sprite in the bottom right ... and a mirror image of it ... a, c
    add a, %10000000
    ld c, a
    b1: ld a ...
    FrankT FrankT December 2020 Assembler
  • Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…

    ... drawing all sprites, waiting a bit, then erasing all sprites, repeat... ... you will see a huge amount ... effectively knows which parts of a sprite are obscured by others ... see an example of such a sprite algorithm in action at ...
    Alcoholics Anonymous Alcoholics Anonymous October 2004 Development
  • z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…

    ... character described internally by a "struct sp1_cs". When a sprite is moved these ... pointers.

    When a sprite is moved, a graphics offset is computed ... drawing get redrawn
    - No erasing of sprites
    - Interesting things ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • Attn: Dunny Re: Basin[QUOTE=Dunny;282407]Just out of interest, is there any demand on these boards for a standalone version of BASin's graphics tools? It'd be just the U…

    ... there are two ways of erasing a certain area: to set ink ... like win98 :)

    A speccy-version would be impossible ... [quote]
    -Option to have a relocatable, optional window that shows ... happened to that selection-to-sprite or selection-to-udg feature ...
    Dunny Dunny November 2008 Development
  • Wolfenstein / Doom for 48k SpectrumHi, is there any game / demo of this kind that runs on 48k machines? Thanks.

    ... />
    It is a raycasting engine, with walls on ... edges of a cell instead of a wall on a cell. There ... to determine if a column of a sprite is behind or ... above a wall, and you ... an object over the walls erasing them completely. It was ...
    Shiru Shiru August 2011 Games
  • SP1 and memoryWhile developing my program, I've run into memory related issues and haven't (yet) run into any advice over how SP1 uses memory. The examples all sb…

    ... with sbrk()? (How much will a sprite generally use?)[/QUOTE]
    < ... in the sprite. In addition, malloc has a two byte ... ) by describing a character sprite as a rectangle and a pointer to an ... be one call. Erasing the sprite would be a second call. Since ...
    Alcoholics Anonymous Alcoholics Anonymous October 2011 Development
  • Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…

    ... .

    When you make a sprite movement at the screen it ... two parts

    A) erase sprite at old position
    B ... erased the sprite at old position or started erasing but didn't ... finish drawing it at new position), the sprite ...
    Ralf Ralf February 2012 Development
  • BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…

    ... location.


    [*] Erasing a tile takes 895T and drawing ... it's possible to use sprite tiles. These are 2 ...
    [*] Drawing tiles would be a little faster (probably around 2000T ...
    [*] There will be 4 sprite tiles available in "slow" mode ...
    Einar Saukas Einar Saukas August 2012 Brand new software
  • What would you do with four joysticks?Anyone got some inspiring ideas for four-player games, or twin-stick two-player games..? I can think of, for four players: [I]Warlords[/I] (Atari) […

    ... scoreboard for rendering a sprite. This seems possible on a 128K, but on ... screen so you can do a continuously vertically scrolling map.< ... on too. So to erase a sprite, I patch the pixels ... to turn off the automatic sprite drawing/erasing, and do it yourself ...
    joefish joefish October 2013 New game ideas
  • Small demo to show my sprite engine for ZX Spectrum 48KThis demo shows 13 sprites moving at 50fps totally flicker free: 12 enemies bouncing in edges and the main character, controllable with OPSA (note S …

    ... the background graphics under each sprite separately, and then erase the ... beam while you are painting/erasing sprites.

    The ... about 1000 cycles to erase a sprite, so we have 3000 cycles ... will be switch between normal a shadow screen at the begining ...
    antoniovillena antoniovillena December 2013 Development
  • Small demo to show my sprite engine for ZX Spectrum 48KThis demo shows 13 sprites moving at 50fps totally flicker free: 12 enemies bouncing in edges and the main character, controllable with OPSA (note S …

    ... beam while you are painting/erasing sprites.

    The ... about 1000 cycles to erase a sprite, so we have 3000 cycles ... 'pixelspace' and attributes with a single appropriate value such as ... - each buffer corresponding to a screen third), and basically make ...
    Hikaru Hikaru December 2013 Development
  • Game loopJust working on my first ever Spectrum game, and am struggling to work out what the game-loop should look like. I've got interrupts enabled (mode 2)…

    ... if you are busy erasing things while the TV ... crosses the mid section of a sprite that is not erased, ... ). I think flicker is probably a worse effect.

    sprite engine (which, btw, ... try to play a segment of a tone every 1 ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Development
  • z88dk multicolour enginesI've been trying to work out how the multicolour sprite engines have been implemented in z88dk. It's not obvious. Looking in the source, I found …

    ... are the only engines with sprite functions defined. No information is ... of printing. So to move a sprite, you have to erase ... erasing the sprite. In most cases the nirvana sprite is defined with a ... is no background where the sprite moves.

    If ...
    Alcoholics Anonymous Alcoholics Anonymous July 2017 Development
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    this procedure draws a sprite with mask from memory onto ... of sprite.
    ADD A,L
    LD L,A
    LD A,(HL ... /> DRAWSPY LD A,(SPRXLEN) ;| taking width of sprite
    DEC A
    LD ...
    moroz1999 moroz1999 August 2004 Development
<1234567…34>

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