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  • Go to, gosub or something different?I'm going to write an arcade game in basic. May compile it. In both basic and compiled basic would a goto or gosub be faster? Also if I stored …

    ... game loop as the first lines of your program, and write ... tip for action games in BASIC is to look for an ... it's not running as fast as it could.

    joefish joefish August 2017 Sinclair Basic
  • 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…

    ... the TV is trying to draw them. That 62% can ... half as long again to draw them.

    The ... will use this time to draw a limited number of scenic ... to do all this from BASIC? With the multicolour engine ... 5 as fast. If you must, use Boriel's ZX BASIC with ...
    joefish joefish August 2017 Development
  • i need a sideways scrolling program written in basicso like ghosts and goblins it scrolls along with the player. i had help with this before in making a tunnel game but this time i need it to be a able…

    ... it would still be fast enough to resemble something ... two liner. Put both lines at bottom of screen. ... layer scroll half as fast as the one above ... like this, or any BASIC programming, is usually the ... already come across a BASIC message scroller program at ...
    kgmcneil kgmcneil January 2018 Development
  • i need a sideways scrolling program written in basicso like ghosts and goblins it scrolls along with the player. i had help with this before in making a tunnel game but this time i need it to be a able…

    ... it would still be fast enough to resemble something ... two liner. Put both lines at bottom of screen. ... layer scroll half as fast as the one above ... like this, or any BASIC programming, is usually the ... already come across a BASIC message scroller program at ...
    digital digital 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…

    ... need to make your routine draw only visible part of the ... your letters, and how many lines you need to copy. Clipping ... -- main complication is making it fast for arbitrary sized font with ...
    tstih tstih January 2018 Development
  • 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…

    ... It is Sinclair Basic, every command is ... DRAW 10,10: DRAW 30,30: DRAW -30,30: DRAW 70,30: DRAW -80,40: DRAW ... 50,50
    60 PLOT 255-f,0
    70 DRAW ... -10,10: DRAW -30,30: DRAW 30,30: DRAW -70,30: DRAW 80,40: DRAW ... basic and it will run blindingly fast ...
    ASH-II ASH-II 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…

    ... can never tell where the lines are going to fall.
    draw both 3D colour images on ... the screens on alternate pixel lines so part of both images ... fit in the 16K of fast RAM you have left between ...
    joefish joefish August 2018 New game ideas
  • im looking for a fill routine written in basici know this would be slow but i want to tinker with it to produce something else.

    Well, this is no basic code, but the algorithm ... will fill it with horizontal lines.

    1) Given ... an array of all polygon lines A(L(x0,y0, ... /> 1.1.) normalize all lines so that y0 < y1 ... x coordinates from Lx, and draw a line between them, ...
    tstih tstih August 2018 Development
  • Short unattended type-in'sThis follows a similar topic on the BBC/Acorn forum (said topic can be found [url="https://stardot.org.uk/forums/viewtopic.php?f=2&t=14919"]here[/url…

    ... black. It draws 10 connected lines in a colour and then ... added spice, it un-draws lines if a 40% chance comes ... =0 to 7 step .1: draw ink c;inverse rnd
    Dunny Dunny August 2018 Sinclair Miscellaneous
  • Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…

    ... from BASIC without having to write a few lines of ... br />
    then PLOT, DRAW, CIRCLE, POINT will all work ... SCREEN$ can address all 24 lines (0-23), so why ... #0 for the bottom two lines?[/quote]

    ... in the ROM and then DRAW, PLOT etc. can use ...
    Paddy Coleman Paddy Coleman October 2018 Sinclair Basic
  • PGD Based GamesAs I've had this a couple of months now (I do have SEUD too but could not really do what I wanted with it, but that's likely my fault) , I was wonder…

    ... awesome, similar to along the lines of there's JSWED, so ... more advanced version of the BASIC-inspired scripting language used in ... particle effects and much more. Draw your graphics and position your ...
    jonathan jonathan November 2018 Development
  • Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …

    ... instructions around twice as fast as the Z80. The ... lead.

    BASIC is not a fair comparison ... on how well the BASIC interpreter is written. As ... very generic (and slow) BASIC interpreter, whereas other machines ... makes it slower to draw on. And the MSX ...
    joefish joefish February 2019 Hardware
  • Artillery - projectile motion gameI started writing this around 25 years ago and abandoned it due to performance issues, and a lack of physics knowledge. Bandersnatch on Netflix fille…

    ... problems.
    2. The draw time of the terrain. I ... a big array then draw it all quickly using ... using every trick possible in BASIC :)[/quote]

    ... so, you can draw the terrain using lines, or UDG, and ... use any possible trick in BASIC yet, now I am ...
    IvanBasic IvanBasic March 2019 Brand new software
  • 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…

    ... ;951346"][quote="Timmy;951339"]The DRAW routine in the Spectrum ROM ... ]

    The ROM routine DRAW at $2382 uses the calculator ... draws arcs as well as lines) so will be fairly slow ... deal; the line routine is fast enough.
    3) The code ...
    Timmy Timmy March 2019 Development
  • Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…

    ... ever seen a BASIC program scrolling the screen that fast!
    I ... did write a utility for speeding up BASIC ... all work. It lets you draw on a hidden screen with ... hijacking the 'LPRINT' command to draw on the screen, with symbols ...
    joefish joefish April 2019 Brand new software
  • Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…

    ... you use the typically ZX81 BASIC definitions of integers e. ... memory just in those lines in which speed is ... much slower. In the lines in which speed must be ... variables. This is much fast that doing PRINT AT; INK ... Glad to discuss about our BASIC programming!
    IvanBasic IvanBasic April 2019 Brand new software
  • Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…

    ... saving memory just in those lines in which speed is not ... remember where unfortunately) that Sinclair BASIC on the Spectrum will still ... $,d$ variables. This is much fast that doing PRINT AT; INK ... too much like several straight lines (which it is really). The ...
    patters patters April 2019 Brand new software
  • Dun Darach : A beautiful way to waste the cold dark evenings.Well, I've 'Dun' it again. I've spent loads of my time pulling apart another game ready for remaking / modding etc. [url="http://www.luny.co.uk/inde…

    ... map in Basic, it was a real pain using PLOT,DRAW. I ... than my dozens of lines of PLOT,DRAW laboriously worked out using ...
    mik3d3nch mik3d3nch May 2019 Games
  • Maze Death Race - did it ever work?As a huge Rally-X fan I was always disappointed in MDR, but I cannot remember if that was just because it was a poor clone or if it was also because …

    ... the screen memory, just simple draw the sprites anywhere. You can ... in the BASIC part! Just see the 4540, 4950 lines ...

    Pgyuri Pgyuri October 2019 Games
  • binary mirroring in basicsame as last question, really. only this time i want to mirror an 8 bit decimal number

    ... fast:[/quote]

    Faster, at the expense of 2K of BASIC ... individual lines of data.

    But if the OP prefers BASIC ...
    dmsmith dmsmith October 2019 Chit chat
  • Any love for Cholo?I remember really wanting this, but seeing very little coverage on it... so I bought it, and loved it. I always wonder why it never got any covera…

    ... is bizarre is that the lines seem to be drawn ... 1 in BASIC), such that where bits of two lines overlap they ... you'd use it in BASIC is to be able to ... with a clean buffer to draw the lines into.

    ... easy task to clip diagonal lines short at the edges ...
    joefish joefish February 2020 Games
  • How to write a simple C+asm horizontal scrolling game (Tutorial, z88dk)[b]How to write a simple C/asm horizontal scrolling game[/b] [b]Note:[/b] This tutorial has multiple parts... I am still writing but this first pa…

    ... looks pretty similar to the basic version now.
    < ... br /> First, we will draw a player on screen:

    3 New Lines are added in main(). (I ... we re-use print_uchar to draw our player ">".
    BASIC version? We literally copied ...
    Timmy Timmy September 2020 Development
  • A Sunday grumbleGIVE IN & DROP OUT OR WHAT? The following is not a sensible message meaning that I'm not necessarily going to act upon what the title suggests, I'…

    ... them, which has usually been BASIC, or basic-like... Iv written map ... an SD card (almost as fast as the +2 RAM drive ... using LOAD! commands), has given BASIC users functions and abilities that ... brilliant programmer can't even draw good looking space invaders... It ...
    kgmcneil kgmcneil September 2020 Chit chat
  • Bit of fun - ToastRack , one change onlyAlthough there's an old "one change only" topic about, I was thinking about the toastyrack 128's earlier. Its actually the only Spectrum model I've n…

    ... 8. Then instead of a basic 40 key keyboard a 48 ... gone for a low cost, fast development design, did not leave ... to handle the keyboard input lines. That would have freed up ...
    1024MAK 1024MAK November 2020 Hardware
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