When using multiscreen mode, the following function (which should print a scaled text) turned out to render only on the first screen:
function scale_text(str,x,y,c,scale)
memcpy(0x4300,0x0,0x0200)
memset(0x0,0,0x0200)
-- draw to spr mem at 0x0000
poke(0x5f55,0x00)
print(str,0,0,7)
-- draw to screen mem again
poke(0x5f55,0x60)
local w,h = #str*4,5
pal(7,c)
palt(0,true)
sspr(0,0,w,h,x,y,w*scale,h*scale)
pal()
memcpy(0x0,0x4300,0x0200)
end
|
Just like normal printing, I expected this to work in multiscreen with the following calling code:
poke(0x5f36,1)
scrs_w, scrs_h = 3,1;
scr_ix = 0;
_camera = camera
function camera(x,y)
x = x or 0
y = y or 0
local dx=flr(scr_ix % scrs_w)
local dy=flr(scr_ix / scrs_w)
_camera(x+128*dx, y+128*dy)
end
function _draw()
scr_ix = stat(3)
camera(0,0)
cls(scr_ix+5)
sspr(0,0,24,24,200,30,48,48)
print("hello",120,80,8)
scale_text("hello",110,60,12,1.5)
return scr_ix < stat(11)-1
end |
But the result is a cut-off scaled text, while the normal text and the other sspr() call work just fine.
I think this is a bug in PICO-8, with remapping gfx memory not properly working in multiscreen mode.
1 comment
Hi,
on a Mac (Big Sur) I did some experiments with drawing a 3D starfield using lines.
However, PICO-8 regularly crashes completely (play around with the 6 buttons for the star speed in all 3 directions) and a debug with lldb on the Mac terminal uncovered the following:
So there seems to be a problem in 0.2.2 with line drawing somewhere.
I hope this can be fixed for the upcoming 0.2.2b
- Martin
On 0.2.1, trying to INSTALL_GAMES with 0.2.1 gives me this error.
INSTALL_DEMOS seems to work fine, though.
Might this be connected to the 0.2.1 release notes saying:
"Fixed: Crash when INSTALL_GAMES / INSTALL_DEMOS without a writeable disk"?
Platform: macOS Catalina, 10.15.5
