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Help needed with drawing masked spriteI need to draw a small sprite (16 bytes) on to the screen using a mask. Its the only sprite that will be used so speed isn't too important. I was goi…
... screen (based on the sprite x,y). I would then draw the sprite to ... the screen using ... if the sprites x,y had moved to a different screen address then draw ... -
After Christmas maps and utilities :)Call Me Psycho [url="http://zx-maps.wz.cz/map.php?id=CallMePsycho"]http://zx-maps.wz.cz/map.php?id=CallMePsycho[/url] Commando1 [url="http://zx-maps…
... /> -------------------------------------------
Utilities:
ZX Screen Snapper 2.30
[url ... the offset X/Y - number of pixels, which are added (removed) to (from ... when you locate the starting screen on wrong place in a ... -
Map to screen address problemCan anyone help me out with what I guess is a screen address calculation problem. I need to calculate the screen address of a tile based on a number…
... .
I need to calculate the screen address of a tile ... based on a number from 0 to ... when I have to calculate for the other screen thirds.
to do this. I?ve tried ... -
Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
... scrolling, just write different values to a block and see if ... what's the fastast way to fill a block of memory ... was the fastest way to update the screen. I know that ldir ... /> _________________
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packet forwarded to wrong interface
z88dk + splib2: another question (sprite instancing)I'm making some tests with z88dk+splib2, with the idea of creating a game sometime in the future, and I have come across a problem. Let's suppose I …
... whole screen with them. But, if I want to work ... of the brick on the screen.
That ... if I want to have many bricks on screen (*).
Is there a way to avoid ... sprite 1 drawn at coordinate (X,Y), and also at (X2 ...Amazing Short Type-InsHey all ! Been having some pretty stressfull days lately so I tought I would type in some games. There was a very nice type-in book here in Slovenia…
...
20 FOR f=0 TO 7: READ t: POKE USR ... x=10: LET y=19: LET a$=""
50 FOR f=10 TO ...Kempston mouse emulationOK, so I've read the FAQ and can understand how to "do" a mouse in an emulator. Just to be clear about it though, perhaps someone could be kind enoug…
... FAQ and can understand how to "do" a mouse in an ... emulator. Just to be clear about it though ... be kind enough to confirm:
The x/y counters roll round ... mouse movements, not just absolute screen x/y co-ords, right?
Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... in assembly. One is to calculate the address by ways ... shifting and masking the X & Y co-ords into the ... The other way is to use a look up table ... ? It would be interesting to know what technique(s) ... people prefer to use in their own routines ...How to rotate an imageI'm working on an idea for a game and to test it I want to draw some graphics on the screen which are made up of 8x8 pixel squares (single characters…
... I want to draw some graphics on the screen which are ... . What I want to do is to store the a set ... the data and applying a screen position I can draw a ... the screen. Now for the hard part, if I want to ... I need to apply some maths to the original data to get the ...Packing numbers in as least memory as possibleI am writing some code for drawing vector lines etc. on the screen. These need to be stored in memory and I want to pack them in a smaller area as po…
... lines etc. on the screen. These need to be stored in memory ... and I want to pack them in a smaller ... . I can limit x to 0 to 127 and y to 0 to 48 which may ...Manic miner remake....Hi all. I just started a Manic Miner remake using Python + Pygame. The aim is to be as pixel perfect as possible (except perhaps I won't have colour…
... />
My aim is to convert some other classic games ... would also like to make it easy to slot in new ... point in writing this was to ask the community a ... I'm using a 1024x768 screen, which makes the basic ... know the full list of x/y offsets for Miner Willy's ...Porting 8k Adventure to SpectrumSomeone has tried to help me port 8k Adventure over to the spectrum. Here is the code thus far. It doesn't seem to work with the verbs, however. I tr…
... X
25 FOR X=1 TO 25: FOR Y=1 TO 6: READ M(X,Y ... ): NEXT Y: NEXT X: FOR X ... =1
TO 20 ... : READ L(X): NEXT X ...Conversion tool - bmp/gif to screen$Hihi Not sure if this is exactly the right place to ask, I don't see a software forum Is there a tool to convert a bmp or gif file to a screen$ sui…
... is exactly the right place to ask, I don't ... a bmp or gif file to a screen$ suitable for spectrum use ... ? I know there are tools to ... go from .scr to gif etc. but I want to be able to ... the PC and move them to the spectrum when I' ...Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... long and inefficient compared to the ZX ROM attempt. ... 16-bit X/Y values. I'm trying to keep to 16-bit ... (or at least 9-bit) X/Y ... values so I can support the Timex 512 screen.
;swap BC/HL to keep X>Y
LD A ...Print at 128,87? :)The advanced search function didn't help me find the answer to this, and I don't remember seeing anything similar in magazines or books... so please …
... would allow me to use PRINT AT x, y (not y,x like the regular ... AT) to specify the ... the general idea is to be able to do things like cursors ... would limit x to 248 and y to 184 to prevent an out of screen error.SpecBAS: Request for comment - SpritesHi all - Having been slaving away at the new SpecBAS release, I've decided to finally bite the bullet and implement a sprite engine. I've got a nice…
... to a pool. They will, when visible and active, appear on-screen ... beyond their creation. I intend to add animation, rotation, scaling and ... /> What commands would you need to implement this?
... /> Such as SPRITE NEW numvar,x,y,gfx$
I ...The state of things to come?Whilst I think it's great that our fave games are appearing on the iPad/iPhone/iToilet etc, I do think it is sad that games are now being taken from…
... because Elite have released pack x/y/z of games for their ... this is the right way to go? If anything it is ...Assembler question about collisions and arranging dataSay you have a game with a playercharacter and some items on the screen - pretty normal for most games, and now you need to check if the player has r…
... and some items on the screen - pretty normal for most games ... , and now you need to check if the player has ... />
I'm no stranger to developing game for Windows, so ... item's X&Y coords and the player's X&Y coords ...SpecBAS 0.730 Now available!Well, I felt I should release SpecBAS as it is right now - my new son has been born (this one survived! \o/ ) and when he comes home I'll have very l…
... your program to become unresponsive, and uses of WAIT SCREEN will be ... GRAPHIC gfx$|bankID|DEFAULT [POINT x,y] sets a graphic (as a ... the hotspot with the POINT x,y parameter. This is the first ... .
More optimisation thanks to the structure revealed by the ...Dimming the screen...Hi Folks, I was hoping someone on here could help me with a wee machine code routine. I have written the following example in BASIC: [CODE]100 REM…
... FOR y=0 TO 21: FOR x=0 TO 31: PRINT AT y,x; ... PAPER RND*7;" ": NEXT x ... : NEXT y ... changing all bright blocks to normal intensity i.e ... lacking and not really up to the job. :cry:
Ideas for speeding up this BASIC routine?This loop can take up to 2 minutes to run, depending upon the content of the screen being scanned, about 70% of that time being taken up by lines 105…
... to 2 minutes to run, depending upon the content of the screen ... Any suggestions on how to speed up those two ... [code]
1050 FOR y=tri TO tri-ml*my+1 STEP ... ,y: LET y=USR toprow:
IF NOT y THEN GO TO ... br /> 1053 FOR z=y TO (y-my+1) AND my+1Compiling Lisp to Z80.I am doing some thought experiments on this. Here is an example of a Lisp program. It adds two numbers together. [code] (define (add x y) (if (= …
... x y)
(if (= x 0)
y
(add (dec x) (inc y))))
y, pushes them to the stack, and ... deliberately without giving any thought to optimising it.
Here ... the function again, jump to the point just after ...zx invaders on a real spectrum problemok i have not been using spectrum basic in years and i am rusty. I am making a space invaders type game and i got the movement on my ship (left and …
... i cant get it to move up screen.
what i ... have is
let firex=x (y ... ?
i am open to anyway of getting this done ... the aliens and getting every "." to hit them.
cheersRND cyclical behaviourGood evening. I'm playing with RND function to show its cyclical behaviour, i.e. after 65536 calls to it, the next one will return the same value of …
... playing with RND function to show its cyclical behaviour, ... x=r-256*y
40 IF y>175 THEN GO TO ... 60
45 IF POINT (x,y) THEN PRINT ... STOP
50 PLOT x,y
60 NEXT i
screen, pixel by pixel, and ...SpecBAS 0.789 releasedHi all! Back with another SpecBAS release - this one's mostly just about sprites and bug fixes. One new addition I do quite like is the expression c…
... sprite on the screen or window it belongs to
... , however
More dithers to GRAPHIC REMAP - dtFLOYD, dtJARVIS, ... etc
SPRITE POINT id,x,y - sets the sprite "hotspot ... could overwrite screen information by trying to write to palette entries ...array offset (z88dk)Im trying to simulate a 2 dimensional array by using an offset [code] #include <fzx.h> char scr[768]; int arrayoffset(char x,char y) { return (x*…
Im trying to simulate a 2 dimensional array ... /> int arrayoffset(char x,char y)
{
return (x*23+y);
}
void main()
{
char x,y;
fzx.font = ff_Swiss;
SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…
... WINDOW or WRAP CLIP (to wrap to the clipping region) after ... /> Converted Sprite movement systems to relative offsets instead of absolutes ... it with SPRITE NEW id,x,y [COLLIDE] [OVER m] or ... s window, not the overall screen display
String slicing with ...CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…
... /> I'd like to draw a circle x,y,r using the BASIC ... -ROM subroutines. I've put x, y and r onto the calculator ... got a circle on the screen but after that the speccy ... entrance address? #232D seems not to be the best one.
