... print routines that did an x,y print at but couldn't ... pointer
push de ;save screen address
call get_char ;call ...
pop de ;get screen address
call p_char
p_char push de ;save screen address
ld b,8 ...

... graphics) and the viewing screen at a constant z coordinate ... :

x' = -d * x / z
y' = -d * y / z
z ... distance / distance of human to screen.

The perspective ... (hence negative d for the screen position).


...

If the map is a 2D square array of M*M characters and the displayed area is D*D characters, where D

... ]AIR bars, Teleporters both screen flick screen and Manic Miner Style portals ... of more or less smooth X&Y scrolling on Spectrum ever ...

... to do is keep a screen backbuffer with all of ... the window over the main screen. In my case I ... simply saved the original screen to RAM disk and then ... the layout of the Spectrum screen in memory I could not ... any easy way of extracting x,y,w,h.

...

... ) show the Spectrum way of [x,y] as used in the PLOT ... :
1. X,Y as it works now
2. X,Y like Spectrum ... PLOT
3. screen address

screen to clipboard as ASM source ...

... :
1. X,Y as it works now
2. X,Y like Spectrum ... PLOT
3. screen address
[/QUOTE ... impelement that would complete the screen address :)

... PAUSE 1
30 LET x=SCRw/2
40 LET ... y=SCRh/2
50 LET ... /> 110 LET x=x+COS f
120 LET y=y+SIN f
130 IF x0 THEN PLOT x,y
screen full of anything like SpecBAS ...

... practices should work for speccy screen.

The very simplest ... on [X,Y] by its neighbours at [X-1,Y] [Y-1, X-1] [Y-1, X]. As ... is most probable value for [X,Y] with given context.
If ...

... needed.
(Also POKABLE x,y coordinates, but it's probably ... with hl pointing at the screen address
ld ... with hl pointing at the screen address
ld ... character before printing to screen
defb 0, ...

... AT 0,0;"SETTING UP SCREEN ARRAY";
130 DIM ... /> 150 LET P(X,Y)=0
160 NEXT X: NEXT Y: CLS
200 PRINT AT 0,0;"X=";X1;" Y=";Y1;" ";
210 LET ... 200
295 REM CHECK X,Y LIMITS
300 IF X163 ... 700
360 LET X=X2: LET Y=Y2
370 ...

... #define MIN(x, y) ((x) < (y) ? (x) : (y))
#define MAX(x, y) ((x) > (y) ? (x) : (y))


// clear bitmap screen
printMode(32);
zx_border ... automatically draw entire tilemap on screen)
for (f ...

... .

Sub myDblSize (x as uByte, y as uByte, c as ... uByte)

' x en IX + 5
' y en IX + 7 ...

Sub myDblSizePrn (x as uByte, y as uByte, s as ... ;= 32 Then
myDblSize (x, y, m, attr)
x = x + 2
Else ...

... subtracting to go down the screen, not adding, as 0,0 ... be in middle of the screen...

The other arbitrary ... school math that to increase x,y you go up and right ... for Spectrum as it's screen memory is made. Nothing prevents ...

... truncation, I presume), plus when x,y are 0,0 an errant ... at the top of the screen.
[center][img]http://www ...

... ). Plus mine addresses the full screen area, handles ellipses which are ... /squashed one pixel in the x/y axes respectively, as can be ...

... any character area on the screen. After using the export ... above for the entire screen. With the screen
divided into ... pixel blocks, labelled according to screen address(hex or dec). Like ... but to X*Y, where X is character size and
Y is pixel ...

... tho... in scaled X Y ... but its a white screen (when it should ... goes to the start up screen?
Foon wont let me ...

... br /> ; sta sine+$c0,x, x=0++, y=$3f-- ok
; ... sta sine+$80,y
; eor #$ff
; sta sine+$40,x ok
; sta sine ... ),e; sta sine+$c0,x, x=0++, y=$3f--

call 022B1h ; calc screen BC=y.x
ld b, a ...

... for a key when the screen is full. If you're ... CLS24
ld bc,$0038 ;x=56, y=0
call $22e5 ...
call $22e5 ;PLOT_SUB: PLOT x,y+1
ld a,(23678 ...

... SCREEN 1
30 CLOSE SCREEN 2: OPEN SCREEN 2,4
40 SCREEN ... /> 180 LET x=128-20+ex*COS n,y=80+20+ey ... *SIN (n*mul)
190 SCREEN wd ... : DISPLAY di
200 PUT x,y,f$,m ...

... pixels total X/Y are your maps? (also the total x/y of maps ... a proper "The End / Congratulations!" screen?

... pixels total X/Y are your maps? (also the total x/y of maps ... a proper "The End / Congratulations!" screen? [/QUOTE]

Yep, the ...

... that DISCiPLE has a 'natural x,y' [URL="http://www.biehold.nl ... you could move across the screen in a reasonable time. ... if they crippled the y axis to 176 off ... interrupts, one for the X direction and one for the ... Y direction each time the ...

... /> Also - if doing a flip screen game don't insert a ... sprite the default start is x,y 0,0.

You ... it just show a blank screen after loading everything.[/QUOTE]

... on the Spectrum's screen in a "satisfyingly ... x,y doesn't work, as patterns start appearing on the screen ... then constrained it within the screen dimensions.

x,y from the bit' ... first selection and the x,y formula will go wrong ...

... change ‘when player meets screen edge’ to ‘next screen. In this example ... I am also setting ‘Screen complete when’ to ‘counter 1 ... game finishes. In this case screen actually means whole game.
x,y 0,0. If you want ...

... 21 LET x=r-256*y
40 IF y>175 ... 60
45 IF POINT (x,y) THEN PRINT n: STOP < ... br /> 50 PLOT x,y
60 NEXT i
screen, the POINT function wouldn' ... generates 8 consecutive out-of-screen dots, so if you ...

... result is poked to the screen in series. It's pretty ...
ld (random+1),hl ; x = y, z = w
ld a ... e
ld h,l ; y = z
ld l,a ...

... too big for the Spectrums screen (in x,y dimensions) so I had ...