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ANNOUNCE: Jet Set Willy Construction Kit (JSW CK 1.0)Today I release Version 1.0 of my Jet Set Willy Construction Kit (JSW CK): the program I used to write We Pretty, Jet Set Willy: The Lord Of The Ring…
... , and you can specify the vertical position of a horizontal guardian in ... -
In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…
... want to order them by vertical position.
I used some ... -
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…
... ,plx ; remember, x is the vertical coord!
ld a,(hl ... .
rst 16 ; set vertical position of player.
ld a,( ... ply) ; player's horizontal position.
rst 16 ; set the ... -
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 linPlayer; // hi-res vertical tile position
int hrcPlayer; // hi-res ... = 0;
// update player vertical position (up/down stairs)
if ... -
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…
... linPlayer; // hi-res vertical tile position
int hrcPlayer; ...
// update player vertical position (up/down stairs)
...
// update enemy vertical position (up/down stairs)
i ... -
trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…
... it.
ld a,#10 ; vertical position.
rst #16 ; print it ... -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... coords.
ld hl,xcoord ; vertical position.
dec (hl) ; move ... .
ld a,(xcoord) ; vertical position.
rst 16 ; print it ... /> ycoord defb 15 - initial starting position of y
... -
why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... for the player's gunbase position,
; this routine is ... br /> rst 16 ; set vertical position of player.
ld a,( ... ply) ; player's horizontal position.
rst 16 ; set the ... /> ; Show player at current print position.
splayr ld a,69 ... -
this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... for the player's gunbase position,
; this routine is ... br /> rst 16 ; set vertical position of player.
ld a,( ... ply) ; player's horizontal position.
rst 16 ; set the ... /> ; Show player at current print position.
splayr ld a,69 ... -
Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…
... to store the horizontal position and doing the vertical position in sections (for ... -
3d Code... simple Anyone know where I can get some examples of 3d routines written in basic... I`ve done some googling, and come up with some source for PowerBasic or…
... about the viewpoint (or camera position as you would call it ... full 360 degree horizontal and vertical position / viewing angle? Or is the ... wireframe type view. The "camera" position was totally free to move ... -
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... in a tile-perfect horizontal position or remove the last 8 ... be on a tile-perfect vertical position -
Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
... have to sort sprites by vertical position, and draw them in an ... -
Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
[QUOTE=48K]1/ Random number generator: I've started using a ld a,r command to grab a number from the memory refresh counter. Only problem is that if I do this in quick succession, the numbers are obviously not very random at all.
[/quote]
Bipboi Beta 2007.12Ok, this will be the final beta for a while, so I can add more levels etc. But, I have tried to respond to all comments. Some liked the origional k…
... you have the blocks changing vertical position slightly as the they travel ...I almost hesitate to post this...... knowing what Mel is like, but who got a Wii then? :) I got one on launch day in the US, (lucky time at Toys'R'Us, turning up five minutes after …
... controller roughly in the horizontal position and watch the float in ... the controller back into the vertical position (don't press any buttons ...Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... enemy
2nd byte vertical position of enemy
3rd,4th ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
[code]
1 LET n=191: BORDER 0: PAPER 0: INK 7: CLS : DIM i$(3,9):
FOR i=1 TO 3: LET i$(i)=" # # # # ": NEXT i: LET p=16: LET b=0: LET a=p:
LET s=0: FOR y=0 TO 14: LET e=y/2=INT (y/2): FOR x=(1-e)*24 TO e*24 STEP e*2-1:
PRINT AT 21 ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
Right, I've just implemented all of your optimisations (a)-(h).
This has resulted in saving 45 positions, making a total of 47 positions remaining! So almost certainly room for some extra feature I hope. I will think about how I can use this ...ZX-Pander ideaAfter seeing Velesoft's setup and many other pictures of people's setups showing more than one interface connected to a Spectrum, after reading the t…
... to be used on a vertical position.
Another reason I ...A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
I will describe some important parameters of this routine.
[quote]
STARFIELD
LD HL,05 ; Reset the random seed [b]Getting started with asm Speccy codingSomeone on another forum I read has asked for good Speccy coding resources. I thought it would be great to link him to a simple tutorial about how to…
... routine
LD A, 10 ; Vertical position
RST 16 ; Call the ...
LD A, 20 ; Horizontal position
RST 16 ; Call the ...Getting started with asm Speccy codingSomeone on another forum I read has asked for good Speccy coding resources. I thought it would be great to link him to a simple tutorial about how to…
... routine
LD A, 10 ; Vertical position
RST 16 ; Call the ...
LD A, 20 ; Horizontal position
RST 16 ; Call the ...+2A case colour - paint matching.I need to repaint a +2A. Can anyone recommend a spray paint that's a good colour match?
... next to the monitor in vertical position and try different settings until ...Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... can use TV/monitor in vertical position:
[img]http://velesoft ... .speccy.cz/other/tv/tv-vertical.jpg[/img]
32x ...Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... use TV/monitor in vertical position:
32x vertical attributes
24x ...Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... can use TV/monitor in vertical position:
32x ... vertical attributes
24x horizontal attributes[/ ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... you need to store its vertical position and the left/right ends ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... 7 32 BIT Display vertical position, 16:16 fixed ... /> This register adjusts the vertical position of the raster table, ... This register adjusts the vertical scroll position for playfield 0.
vertical scroll position for playfield 1.
Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…
... mistake is that you divide vertical position by 8. moving by one ... pixel in vertical direction is moving to another ...
