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IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... />
LD IX,sprites ; Point to sprite data
LD B,TOTALSPRITES ... return so we can print sprite to screen
LD (IX ... . if next char is off bottom, go to top
WChar:
INC ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... ://www.rickardberglind.se/zx/move-sprite-1.z80"]here[/URL].
sprite"
ld e,8 ;e ... "sprite"
ld d,31 ;d=number of characters to move to right ... [/B] ;routine for moving up to top of byte again
ld ... -
Change to Top 100 Games format?Morning folks I was thinking last night that it would be a great idea to maybe revamp the Top 100 Spectrum Games, maybe expand it to 250 like the IM…
... be a great idea to maybe revamp the Top 100 Spectrum Games ... , maybe expand it to 250 like ... -
Problem Wrapping SpritesHi, I am having an issue wrapping my sprites around the screen, Basically, I have a back buffer which is 24 chars (192 Pixels) by 28 chars (224 P…
... I want it to wrap around to 0. Imilarly when ... (0) I want to wrap around to 192.
to write efficient code to handle it.
For example, my sprite ... could be at (2,2). I add (-3 to ... if (a 224) then wrap to top
Are there ... -
Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... ;Can copy game graphics down to top of lower RAM block for ... .
;Full 16x16 masked attribute sprite routines.
MACRO ... jp nz,draw_char_frame_loop
;Bottom of frame
inc c ...
ld a,(SPRITE_BASE) ;sprite Y
sub l
Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…
... . This code is meant to allow sprite clipping to arbitrary areas on screen ... = rectangle left(top) coord
; e = rectangle right(bottom) coord non-inclusive ... /> ; a = left(top) coord of intersection
; c = right(bottom) coord of ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... />
LD IX,sprites ; Point to sprite data
LD B,TOTALSPRITES ... return so we can print sprite to screen
LD (IX ... . if next char is off bottom, go to top
WChar:
INC ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... />
LD IX,sprites ; Point to sprite data
LD B,TOTALSPRITES ... return so we can print sprite to screen
LD (IX ... . if next char is off bottom, go to top
WrapCharVertically:
INC ...z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... which sprite lies on top of which) when a sprite is ... Which brings me to the sprite definitions. As the sprite is built up ... s "sp1_update" ordered sprite list according to its plane positon (0 ... that a sprite is drawn in left to right, top to bottom on screen ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... the program to refer to the sprite just created.
sprite to an absolute pixel position. ... sp1_MoveSprAbs() also moves a sprite to an absolute position but ... top left corner and (SP1V_DISPHEIGHT-1,SP1_VDISPWIDTH-1) for the bottom ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... This told SP1 to use the same sprite graphic that was ... move sprite call to get SP1 to use the sprite graphic we want to ... in row-major order (left to right, top to bottom) and for each character ... for the pacman sprite frames were chosen to be consistent with ...My first platformerHi all! How do you do? Been lurking here for a while, but never had the courage to join the forum. :) The Speccy was my first computer, so I've alw…
... an extra blank row to the bottom of sprite graphic definitions and tell ... have to be declared 2x2 with the graphic located in the top ... of the sprite is drawn. If the bottom of your sprite's graphic ...Artist RequiredAs some of you may be aware, at the homebrew coding weekend back in July I volunteered to write a Spectrum game to be shown at this year's Replay exh…
... I can use pointers to each sprite frame to avoid awkward calculations.
bottom of the screen which ... the food to the queuing customers at the bottom left and ... of the conveyor, and somewhere to top up his sausage/beefburger ammunition ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... sprite pasted to screen, you only check maybe one at the top ... and one at the bottom of the sprite... You ... ...
Perhaps to make it more specific, you ... that your not likely to be using a screen ... switching method, so checking to see if the screen ...Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... pixels, you have to manually rotate your sprite data to simulate moving right ... : stepping through the sprite data left to right top to bottom and in parallel waking ... through screen addresses as the sprite ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... will start again at the top of the screen. This uses ... , we're going to need it at the bottom just you see ... registers and add it to the sprite we want to put down, multiplied ... why the sprite eventually starts drawing again at the top of the ...Mr Do!, and paging ajmoss and othersIn threads like [url]http://www.worldofspectrum.org/forums/showthread.php?p=466099[/url] the possibility of Mr Do! has been discussed, but nothing…
... (and mostly were awful to play). Farmer Jack in ... when the player's sprite goes up or down, ... top twent lines (of twenty-six) the other shows the bottom ... colour clash when a sprite tries to follow that path, ... clash was negligable (and to me wholly acceptable). Or ...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 …
... draw reaches the bottom it wraps around to the top.
... 8 sprite blocks on top. Yellow border is the time taken to ldi ... slp2 push bc
call sprite
inc ix
inc ... screen starts here or before, sprite misses third screen segment later ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... to shift downward by 7 pixels). On top of this, moving a sprite ... will clip the sprite image along the bottom. Now your sprites ... specify how much the sprite needs to be rotated before ... listed in this directory to the sprite's individual characters. Mask ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... br /> [/code]
The bottom row is the blank row ... meaning that bottom row is drawn if the sprite is shifted down ... the sprite to move to a new character square), the image in the top ... pointers and redrawing, the sprite appears to move down a pixel. ...Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... needs access to the graphics data in the sprite char to the ... rightmost pixels of the sprite char to the left with the ... pixels of the current sprite char to form the graphic written ... /> [code]
188 ; ix = top of queue, bottom of queue marked with ...P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... of the original 1:1 sprite and background porting, before ... the background, finding creative ways to recycle sprite "parts" (eg: legs ... not). Colour limitations (restricted to top of level maps?). Whole ... how are they to be cut up (top/bottom, or perhaps as ...P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... of the original 1:1 sprite and background porting, before it ... in sub-sprite sections. Example, we don't need to draw the ... the background, finding creative ways to recycle sprite "parts" (eg: legs and ... parts, how are they to be cut up (top/bottom, or perhaps as ...Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... which [i]masked[/i] sprite goes on top of which. In [i ... , then finally those at the bottom. In this way, you're ... basically being 'allowed to' continue drawing for a good ... as the raster progressively begins to pass over the sprites you ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... /> ; sprite8x8a
; draw 8x8 sprite aligned to cell
; ix[0:2 ... br /> ; calculate screen coordinate of top of cell
ld hl ... de ; hl = screen address of top row of char
ld ... will overwrite the text on bottom line
Result:< ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... try and draw off the bottom of the screen.
; sprite8x8a
; draw 8x8 sprite aligned to cell
; ix[0:2 ... :
; calculate screen coordinate of top of cell
ld hl ... , de ; hl = screen address of top row of char
ld ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... the strings) until it gets to the bottom of the screen, but ... /> ; sprite8x8a
; draw 8x8 sprite aligned to cell
; ix[0:2 ... br /> ; calculate screen coordinate of top of cell
ld hl ... de ; hl = screen address of top row of char
ld ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... the strings) until it gets to the bottom of the screen, but ... /> ; sprite8x8a
; draw 8x8 sprite aligned to cell
; ix[0:2 ... br /> ; calculate screen coordinate of top of cell
ld hl ... de ; hl = screen address of top row of char
ld ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... (only on the top row, and not ...
; draw column aligned sprite, arbitrary row
; DOES ... /> ; draw column aligned sprite, arbitrary row, always using a ... a 16x16 sprite
; de = pointer to 32 bytes ... a 16x16 sprite
; de = pointer to 32 bytes ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... routines are designed to work correctly if the sprite you are trying ... to display is partially off ... had to write sprite16x8a - to draw half of a sprite at the top or bottom ...
