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Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... attrib location instead of separate x & y components, then you just ... -
Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... attrib location instead of separate x & y components, then you just ... -
So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…
... a change in x and a change in y movements which you ... , y0)
y=y0
for x from x0 + 1 ... D > 0
y = y + 1
plot(x, y)
D = D ... - dx
else
plot(x, y)
D = D + dy
SpecBAS / SpecOS documentationHi, I just find out about SpecBAS and I was so impressed by the new functions while retaining compatibility with ZX Basic that I've been playing wit…
... .is an absolute location (the x,y of the screen)
SPRITE ...New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …
... is just BEEP X,Y where X is the pitch, and Y is the ...New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …
... is just BEEP X,Y where X is the pitch, and Y is the ...Drawing a dotted line...Hi Folks, I cannot be the first person to want this (?) so here goes! Does anyone have a MC routine that does the same as the BASIC DRAW command bu…
...
over 0
plot x,y
Calculate next pixel address ...
plot x,y
over 1
plot x,y
over ...Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
... column with PRINT, and y & x with PLOT.
... y,"Height=";h'"Column=";x,"Width=";w
120 LET y=INT ABS y ... x=INT ABS x: LET w=INT ABS w
130 LET y=y-(y ... -20 AND y ... Routine
190 REM x,y,w,h
200 ...Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
... /> LET i=FN a(x,y,h,v,a)
... LD (a63092),DE ;store y,x at 63092,3
ADD ... ld a,(a63092) ;get row y
rrca
rrca ... hl,bc ;HL=22528 + 32*y + x
push hl
... ! HL=display address for x,y
LD A,(a63094 ...Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
... a check on y, whereas all of x, y, x+w, y+h need to ... CLEAR 62999: DEF FN b(x,y,w,h,a)=USR 63000 ... br /> 110 INPUT "Row=";y,"Column=";x: INPUT "Height=";h,"Width=";w ...
120 LET y=INT y: LET x=INT x: LET h=INT h ... a
130 LET y=y-(y-20 AND y>20) OR y30 ...
