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Flip Screen vs ScrollingWhich do you prefer? I've always liked flip screen games but I had a C64(spit) owning friend who hated them with a passion.
[QUOTE=joefish;515917]Umm. [I]Highway Encounter[/I] [U]was[/U] a flip-screen game.[/QUOTE]
Thats me told +1 Joefish.
Memory is playing tricks on me again, maybe the +12v is wonky :eek: -
Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... Bunny - one of the finest "tricks" I have seen! Truly amazing ... )=INT (v/256):
LET udg=FN p(23675)
20 ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... to be amazed at the tricks Joffa had to resort to ... such wonderful tricks to salivate over.
And joefish is turning ... -
Hi there ;) New development groupHi everybody! I'm Baron Ashler, founder and member of a new very little development group called "Kabuto Factory" and this is my first post ;) We'v…
... (for example, if you have UDG and a 2000 bytes chunk ... game I didn't use tricks with POKEs, PEEKs, OUTs, INs ... -
Famous 8 x 8 graphicsHi All, Part of a game I'm writing involves collecting falling 8x8 graphics, one level will be fonts (got this bit sorted) and another will be 8x8 g…
[QUOTE=joefish;541045]I used to doodle ... do like your 8x8 stamp UDG.[/QUOTE]
Hope that ... gone :sad:.
Cheers Joefish, the stamp's going in ... -
Famous 8 x 8 graphicsHi All, Part of a game I'm writing involves collecting falling 8x8 graphics, one level will be fonts (got this bit sorted) and another will be 8x8 g…
... :
[INDENT][IMG]http://www.joefish.co.uk/speccy/UDGs_2.gif ... [/IMG] [INDENT][IMG]http://www.joefish.co.uk/speccy/UDGs_2_neg.gif ... was going to have a UDG-based baddie kill-counter, but ... -
Most colourful games?I just played [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0001563]Earth Shaker[/url] and am fairly dazzled by the overload use of colour (t…
... tricks*
(that's not exactly true if we consider Joefish ... to create today with their tricks on Atari:
[youtube]zvUBb2t1_aY ... -
How to get a minimal splib2Hello. We are designing a new engine and stuff, coded in ASM and to be used from z88dk. I was just wondering how to get a minimal splib2 with just th…
[QUOTE=joefish;552357]Yep, put a post ... competition of it!
That UDG challenge has got me scribbling ... -
Amstrad anyone ?I grew with C64 and Speccy, and still use both, but I`m curious about the Amstrad CPC464. So, comparing it to the spectrum only, what is it like ? …
[QUOTE=joefish;561690]At heart, it's ... />
It had hardware display tricks that could be exploited, but ... -
Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…
[QUOTE=joefish;585454]Although the NES and ... can do lots of graphical tricks during VBLANK etc. -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
[QUOTE=joefish;592436]First thing might be ... 's not fixed for each UDG. Then you render the screen ... a lot for the answer, joefish .) -
Increasing the number of UDGs...Hi Folks, I know by default the Spectrum can have 21 UDGs (48K) and 19 (128K) and that the address of the bit patterns is pointed to by the UDG syst…
Like JoeFish says....
Set 23606/23607 to the altered characterset and you have 96 UDG as CHR 32 to CHR 127. Also with SCREEN$ readable from screen. -
Turn UDG to Attrribute blocksI'm trying to enlarge my UDG's to 8 x 8 character blocks per pixel, but struggling, is there any subroutine/program for enlarging UDG's x 8?
... />
Change "e" for the UDG you want. Untested, but should ... work. It just reads the UDG from memory, then look at ... if 0.
EDIT: Joefish's solution is way faster. -
Turn UDG to Attrribute blocksI'm trying to enlarge my UDG's to 8 x 8 character blocks per pixel, but struggling, is there any subroutine/program for enlarging UDG's x 8?
... a BASIC version of the joefish & na_th_an ideas, altered ... the array used by the joefish version.
Line ... 20 is the joefish version.
Line 30 ...
[code]
2 LET udg=FN p(23675):
DEF ... $: CLS : LET u=udg+(CODE u$-97)*8:
Imperica Horizons - The whole weekend :-)So now it's all over, I'll do a quick writeup... It all started for me at 5.20 am. Getting to London from Devil's Island isn't so easy now that Aer …
... the Spectrum ULA, colour timing tricks and the various optimizations that ... usual suspects from the forum (Joefish, Gasman, csmith, JakeyW, and a ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687796]No, I haven't ... use POP to fetch the UDG data. But you could use ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687774]You can also, if ... 16-bit address of each UDG, allowing for multiple character sets ... be the address of an UDG routine like this:
[CODE ... [/CODE]
It means the UDG table would be 3 times ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687911]I think that's ... I misunderstood something?
[QUOTE=joefish;687911]It could also be ...
[/CODE]
Change each UDG routine as follows:
[CODE ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687919]Well, it's shorter ... /> and this code for each UDG:
[CODE]
pop hl ... *256=6400 bytes for each UDG table. Total execution time is ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687930]You could also use ... require temporarily replacing 24-3 UDG addresses to reference a single ... /> And temporarily replacing another 3 UDG addresses to point to custom ... temporarily replacing the same 24 UDG addresses as above.Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;687952]For horizontal wrap-around ... entire screens.
[QUOTE=joefish;687952]Although what I'd ... full game map, calculating the UDG routine addresses and adding them ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
[QUOTE=joefish;688062]Because then they're ... very useful.
[QUOTE=joefish;688062]On that note, I ... you impose that in every UDG character at least one byte ... every UDG. Are these restrictions reasonable for you?
[QUOTE=joefish ...New game: Escape from CnossusHot on the heels of Spectral Dungeons, I give you a new roguelike, this time with graphics and more complex gameplay. [IMG]http://notimetoplay.org/w…
... limit for the number of UDG's. I can have ... thousands of UDG's, and all of them ... 23675 maps the variable to UDG Systemvariable, but why not use ... than POKE.
Such tricks I used in some of ... games one write, the more tricks he will learn.
@ ...New game: The curse of OddvilleDon't get too excited! :p Just wanted to share this because the coding of it is driving me mad, or rather the game designer is. The curse of Oddvil…
[QUOTE=joefish;711535]Just played the game ... such a small game. The UDG graphics are cute. The rune ...New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
[QUOTE=Einar Saukas;723486]joefish has just updated his zxgraph ... .google.com/site/zxgraph/home/joefish"]"Spec-Spiker" designs[/URL].
udg's btw.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) […
[QUOTE=joefish;729826]Anyone got some inspiring ... kart style powerups, done some udg size cars and some backgrounds ...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…
[QUOTE=joefish;738107]I did have a crack at writing a UDG/block/map editor in PYTHON to run on a PC. The idea was [...][/QUOTE]
That's great information!!!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…
... won't work. There are tricks to work around this limitation ... for this purpose (I believe joefish has been working on that ...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…
[QUOTE=joefish;745955]I did say, the ... a series of 1-byte UDG identifiers.[/QUOTE]
Therefore ... you suggested).
[QUOTE=joefish;745955]Anyway, why is this ... the UDG format that the programmer chooses.
[QUOTE=joefish;745955 ...
