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A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…
... to the PLOT routine, the coordinates were being store in (COORDS ... 7, h ;
exx ; recover coordinates
jr z, __DRAW4 ; if ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... to "plot" pixel at screen coordinates 50,50 how would I ... -
Utility or routine to save/display imagesLet's assume I have an image or sprite at coordinates x,y with w witdh and h height. If I were to store this image, which storage method would allow …
... an image or sprite at coordinates x,y with w witdh ... -
The display of the ZX SpectrumI'm trying my hand at putting a simple emulator together, but I don't quite remember exactly how the screen works... I have a (void) function that ta…
... how to work out the coordinates of the 8 pixels from ... -
SpecBAS 0.646 now available.Yay! Here's another round of bugfixes and additions to the Program. Not so much of the extract coding features, but more back-to-basics this time: […
... .
WINDOW GRAB with invalid coordinates will now error correctly.
Some issues with my UDG programFor the sake of remembering how to do some things in Basic, I started coding a small program that could be used to create UDGs: [url]http://db.tt/tt…
... black square, otherwise clear the coordinates x1,y1 (to delete the ...(part of) screen to UDGHere is a routine to copy a Y,X-position on screen to a UDG. 0<=y<=23 0<=x<=31 144<=udg<=165 (UDG "A" to UDG "U") [code] ; start code with ; PRINT …
Here is a routine to copy a Y,X-position on screen to a UDG.
0SpecBAS 0.711 Now AvailableA few bugs fixed, a few new functions to make writing stuff easier... Go grab it here: [url]https://sites.google.com/site/pauldunn/SpecOS.zip[/url] …
... $ inserted at position pos.
POLAR(dx,dy) returns the angle ...SpecBAS 0.718 Now AvailableHi Folks! After an appreciable delay, the latest and (dare I say it?) greatest SpecBAS update is now available. We're moving into modern times with …
... /NYBBLESWAP, LOWORD, HIWORD, LOBYTE, HIBYTE, POLAR, POLARDIST, CLAMP, INRANGE, ITEM$, INSERT ...SEUD - How to - Part IIOK, now let?s enter on each option to see how to use them. First of them, the attack waves. A - Attack Waves [IMG]http://img841.imageshack.us/img84…
... where you will insert the coordinates that enemies will follow.
What is this talking from (audio clip)?This is what my 45 year old Fuzz/Wah pedal picks up sometimes. Really annoying when trying to record. [url]http://dl.dropbox.com/u/9498358/TapeDeck…
3D Wireframe/vector animation creator and player?Is there any software that can help record wireframe 3D animations by creating a file that stores just the coordinates and lines? If the answer is "n…
... file that stores just the coordinates and lines? If the answer ...Geocaching Game?(Note: For those of you unfamiliar with this fun outdoor activity, see [url]http://www.geocaching.com/[/url]) Wouldn't it be fun to have a geocachin…
... with only a set of coordinates and a GPS device to ...SpecBAS 0.743 Now available!Hey Guys - SpecBAS has been updated again. A shedload of bugs have been fixed, and a couple of "just for fun" commands have been added! You all sa…
... array of 2d or 3d coordinates to roate, scale and translate ... creates an array of 2d coordinates from it ready for displaying ...What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
... chan 2.
; Initialise coordinates.
ld hl,21 ... him
; at his new coordinates.
ld bc,63486 ... up the x and y coordinates for the player's gunbase ...SpecBAS 0.747 Now available!Hiya folks - it's update time again! SpecBAS has had a load of new fixes, as well as some new additions! Firstly, as you all wanted it, SpecBAS can…
... , DRAW, CIRCLE etc) will use coordinates in those ranges. Have a ...BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... tiles in hi-res coordinates. To avoid visual glitches ... tiles;
[*]Adjust their coordinates;
[*]Draw them all ... int px, py; // "abstract" coordinates
int f; // generic counter ...BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
...
int px, py; // "abstract" coordinates
int f; // generic counter ...BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... just need to set their coordinates and tile numbers, that's ...
int px, py; // "abstract" coordinates
int f; // generic counter ...SpecBAS 0.752 Now available!Ok, after the heroic efforts of ASH-II and Galileo finding as many bugs as they can, the result is a more stable and capable interpreter! Here's wha…
... /> Sprites when moved disregarded Y-coordinates in their delta calculations
BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
...
int px, py; // "abstract" coordinates
int f; // generic counter ...BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
...
int px, py; // "abstract" coordinates
int f, g; // generic ...SpecBAS 0.754 Now available!Hi all - Due to overwhelming demand from half of my userbase (That's ASH-II to you lot), BEEP has been added! It's not just any old BEEP though - y…
... of a sprite at your coordinates, inheriting the original's animation ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
...
int px, py; // "abstract" coordinates
int f; // generic counter ...Questions about SEUDI recently purchased SEUD (Shoot-em-up Designer, for those who do not know it) from Cronosoft and tried to familiarize with it, also by peering into …
... and precise in setting the coordinates - and you must set lots ...Trigonometric find angleHi guys, anyone knows a formula to calculate an angle between two coordinates, using basic?s function ATN , recent programming tools have ATAN2(dy,dx…
Hi guys,
anyone knows a formula to calculate an angle between two coordinates, using basic?s function ATN , recent programming tools have ATAN2(dy,dx), but im having trouble using atn.
thanx in advance.Strange INK behaviourThis weekend I hooked up two Sinclair ZX Spectrum with Interface 1 to try out the networking capabilities, and I ended up using parts of the Net Game…
... ) each computer randomly created coordinates for a man built as ... character and then send his coordinates to the other computer ... and receive the coordinates of the man from ... no 1 sent his coordinates and received the coordinates from Spectrum no ...MGT MOUSE - exist really ?I read disassembly of +D rom/ram code and from address #2249 is routine for read MGT MOUSE ports. I can't find any info about "MGT MOUSE". Exist real…
filled shape creating codeDevelopment is continuing well on a resurrected project of mine from about 20 years ago. Speed and size optimizations are going well along with displ…
... 4 sets of X,Y coordinates and it draws the filled ...UK magazine-alert: Miner Willy's Retirement HomeIssue 122 of [i]Retro Gamer[/i] magazine features a paper Jet Set Willy game named [i]Miner Willy's Retirement Home[/i], pieced together by Martyn Ca…
... [/i], [i]row[/i]] map coordinates (there are no rooms at ...
