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that "listing variables during runtime" thingWell, I did eventually finish this, but with my meds playing up I don't have much time each day that I can spend at the computer, so it's taken rathe…
... which had been stored from the old (E_LINE) position), then (VARS) ... up various pointers and calculate the parameters for the ... routine:
PRINTRO:;test from BASIC (otherwise this first section ... PRINTA: ;print character A at row B column C with attributes ... -
FZX Driver for z88dkAn fzx library for z88dk can be downloaded [URL="https://drive.google.com/file/d/0B6XhJJ33xpOWM2hWNjAxMVkxaEk/edit?usp=sharing"]here[/URL]. The libr…
... set if the cursor position has left the bottom ... x);[/B]
Print position can also be set through ... on a single character from the current character set.< ... B]
Return the pixel width of the buffer. Newline ... will fit in a row. You can keep calling ... -
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 +…
... have a look at. Far from finished. Should simply compile ... hl = address of start of row
add hl,de ; ... =X, hl=image, sp=pixel row table, c>128 so ... ldi
ldi ;draw two pixel rows
ENDM ;repeat 8 ... , hl=attrs, sp=attr row table
REPT 8, ... -
Could use some help improving some controls.Back when Dingo was released many people said they had problems controlling it, so I've decided to improve the controls on it, so you no longer need …
... lined up with the one pixel line where you can move ... />
The first 3 lines calculate where you are. The next ... pressing RIGHT while on a row with tiles on it. Like ... just press RIGHT at this position, but the problem is that ... -
Tutorial: Using UDGs in SpecBASSpecBAS is capable of using graphics mode, in a similar manner to the original Spectrum. Like most things though, the extended nature of SPecBAS's ab…
... pre-defined. The block graphics from the number keys are mapped ... - one bit per pixel, making up one byte per row. Because SpecBAS ... "a" is 128 characters on from there, so character 225. 225x64 ... set itself, you need to calculate the address of the character ... -
Pixel Editor Pro - a new webapp for editing pixel artHey Spec Chums, Don't know if anyone's interested, but I've been working on a pixel art editing webapp that might be useful for potential retro de…
... been working on a pixel art editing webapp that ... br />
It's called Pixel Editor Pro (a bit of ... m just looking for feedback from users about:
1. ... as (1) size of pixel squares in the Edit ... br /> - display the current row and column over which the ... -
EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... character set by pixel to find out the right position again [/quote ... to start it always from the top visible row. If you found ... -
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] ; ***********…
... .z80 file available from [url="http://www. ... /> ; based as opposed to pixel based system
... 0) ; Get Current X Position
INC A ; ... /> ; ACHAR
; Calculate address of char
Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…
... is some code modified from Nick Flemings awesome example ... hl = address of next (pixel) row down.
inc h
; Draws a 16 pixel wide sprite (variable height)
pop de
; ----- calculate rotate addresses. -----
ld ...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…
... positioned at a tile-perfect position (i.e. it's ... things up since that extra row/col of the sprite ... column (nor the 7 blank pixel rows above each column). ... by one and the empty row at bottom will not ... ld a,(bc) ; get clr from clr block
inc bc ...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…
... and graphics primitives. Every pixel can be any colour. ...
- Build your large tiles from sp_PrintString strings. These strings can ... codes to change relative print position, so you can print ... to build these tile strings from...
- Use ...Timex 80 column display driverI subsequently wrote an 80 column font driver for 512x192 mode.
... char printed from scratch, doesn't compute a new position subroutine address ... the dfile2 address for each pixel row.
On the other ...Shoot-em-up Development UpdateHi Folks, I am still working away at my horizontal scroller. Here is a link to let you see progress. I have re-written the scrolling routine to make…
... br /> ; SCROLLING ROUTINE WITH 2 PIXEL PRECISION
;==============================================================[/FONT]
... /> [FONT=Courier New]; Calculate offset from start of row[/FONT]
...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…
... /> How is faster than using row major form?
[/quote]< ... at a position depending on its plane (a number from 0-255 ... ).
For horizontal pixel rotation, each "struct sp1_cs" contains ... vertically before this extra column/row is drawn. This works ...Wanted: Game Ideas!Ok then here goes nothing. I'm a reasonably good programmer, but I'm really no good at coming up with game ideas and graphics. So if any of you have…
... - Up to 256 unique 8x8 pixel background tiles can be displayed ... strings that can have print position commands embedded. Other commands include ... or so hours in a row to get it right. ... for function pointers, stay away from multi-dimensional arrays -- or index ...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…
... completely draw a character cell from the associated "struct sp1_update". Have ... of these
uchar row; // +0 current y tile-coordinate ... ..7) to add pixel precision to the sprite's position. width and ...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…
... column, bit 5 = 1 last row, bit 4 = 1 clear ... sp1_update" the sprite occupies. The position in that list depends on ... sp1_UpdateNow() draws a sprite character from the "struct sp1_cs" can be ... draws the graphics in the pixel buffer and returns to sp1_UpdateNow ...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…
... if (se->s->row > 21) // if sprite ... this includes information on current position. Following the move the ... to add to accommodate pixel precise placement of the ... pixels rotating into the character from the left side.
...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…
... been moved to its new position, the "hrot" member of the ... and an offset for vertical pixel placement of the sprite. By ... -Tac-Toe Border from the Engine
sr.row = 7; sr ... character square and removes it from the engine.
...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…
... sprite and the extra blank row on the bottom of the ... () allocates memory for struct_sp1_ss's from queue #0 and memory for ... pacman will move in 1-pixel increments; the 'dx' and 'dy ... to reset the pacman's position, or perhaps the in_KeyPressed() function ...Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?
... map to TV display position with this basic program ... the right one character position. When CCCCC=11111 ( ... a drop from char row 0 to char row 1 ( ... row) and SSS gets 1 added. This is the next pixel ... by single pixels, convert from pixel coords to attribute coords, ...How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... you get 224 cycles per pixel row (this includes left and right ... of time and will suffer from the tearing. Ultimate uses a ... dirtied character cells are copied from a "back buffer". However tearing ... still appear in the old position. So not true sprites in ...How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... the "real" TV screen position to the correct place ... as the raster moves from left to right covering ... "plot" equals to a Spectrum pixel?[/QUOTE]
... frames so the same pixel row gets displayed twice in ... of the pixel as the raster moves from left to ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... generators actually calculate the next random number from the previous ... address when moving down one pixel row. z88dk does not allow ... fat character in each vertical pixel row.
For ... destination address for the next pixel row.
We ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... with limited formatting
// row = initial row coordinate
// col = ... code]
// compute initial print position of line
if ... the screen address from pixel coordinates, screen address from column coordinates, ...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…
... . So this is a reconstruction from very vague memories! Back then ... /> a) Declare separate vectors for row and column. This will save ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... [b]d_PrintDoubleW()[/b]. The pixel scroll routine requirement has changed ... /> p_GetPlotScreenCoord(p, &r.row, &r.col);
... /> p_GetPlotScreenCoord(p, &r.row, &r.col);
... copy the colour from the current position in the 9- ...New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
Einar,
your algorithm looks short and promising.
This is what I made until now
[code]
Statements:
1 DIM m(999):
2 LET m(66)=1:
3 FOR r=1 TO 10:
4 FOR c=1 TO 15:
5 RESTORE :
6 ...Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…
... completely included all the sprite position information in their calculations. Again ... . xthresh and ythresh also come from the "struct sp1_ss"; they don ... have the extra row and column required for pixel precise placement and ...
