picolove / picolove Goto Github PK

This is the type of file you get from pico8 if you do not create any graphics. At least in the latest version.

Perhaps older pico8 saved blank sections for those?

It would be nice to identify what version of pico8 that picolove will run. It looks like it's currently 0.1.1*

The current version is 0.1.2.

What would be nice is if there was a way to read the version from the file header, so that appropriate regressions could take place.

*From the readme, it mentions that sqrt crashes pico8. From this list of known bugs it looks like the sqrt bug was in 0.1.1.

function _init()
end

function _update()
end

function _draw()
  cls()
  --color(6)
  print("can you see this?")
end

It seems that color is being set to black somehow?

you can see this if you uncomment the color(7) command. this does not work if color is _init or _update

Hi, a call to pal() should also reset palette transparency flags (like a call to palt())
In the same spirit, the start of _draw() should reset both pal() and palt()
With those changes, the cart I tested worked perfectly.

The current patcher for shorthand if's will put "end" after a comment if there is one:
if (expression) expression --comment
becomes
if expression then expression --comment end

It should detect if the line contains a comment and place the end before the comment.

EDIT:
I've also noticed the line regarding or reads b:find('%f[%w]or%f[W]'), should it read b:find('%f[%w]or%f[%W]') like the others?

idk any good function names but preferably they would be short.

There are a lot of errors when running make check or make lint.
Fix them by updating .luacheckrc and/or the source code.

In the manual for 0.1.2, it says:

Player 1 keys: Cursors + ZX / NM
Player 2 keys: SDFE + tab,Q / shift A

from the keymap defined in main.lua:

__keymap = {
    [0] = {
        [0] = 'left',
        [1] = 'right',
        [2] = 'up',
        [3] = 'down',
        [4] = 'z',
        [5] = 'x',
    },
    [1] = {
        [0] = 's',
        [1] = 'f',
        [2] = 'e',
        [3] = 'd',
        [4] = 'q',
        [5] = 'a',
    }
}

it looks like the nm/lshift/a is missing.

This would be nice to add for familiarity with the picolove system!

When trying to run multicart games picolove just hangs in a black screen.

I trying to play this game as a test:
https://freds72.itch.io/virtua-racing

If you have not chosen one, I would suggest the liberal zlib/libpng license as that is what love and many love libraries use.

There is the license that the site uses but that's more of a TOS for the site.

They do seem to push cc4-attr-nc-sa quite a bit as well. but I would still advise against it, looking at how the love community uses libraries.

Just cloned the repo and ran love ./ on the folder. I got this:

Error: main.lua:37: bad argument #2 to 'newMesh' (Texture expected, got string)
stack traceback:
    [C]: in function 'newMesh'
    main.lua:37: in main chunk
    [C]: in function 'require'
    [string "boot.lua"]:360: in function <[string "boot.lua"]:241>
    [C]: in function 'xpcall'

Maybe png detection should be done not by the extension of the file but by the png magic string?

Hi.

I think that is good to set a parameter to set "stricted mode Pico-8"

Thanks.

Hey there!

I'm new to Lua and Love stuff. I've installed Love and have successfully run a "hello, world." How do I use picolove to run my pico-8 cart?

Currently, if I just run love . in the picolove directory, I get this screen:

Any help is appreciated, thanks!

Please ignore

 circfill(10,10,1,10)

draws this:

on latest love2d.

Hi, I am trying to get Pico Love running on Love Android....
Do you have a list of compatible carts for testing?
https://www.youtube.com/watch?v=zYKWbOpeaYM 

I wonder if this is a maths/rounding error?

code (called with integer values)

function draw_card(s,x,y)
  spr(s, x,y, 2,2) -- main sprite
  line(x+1,y-1, x+14,y-1) -- top edge
  line(x+1,y+16, x+14,y+16) -- btm edge
end

Interesting that only one of the two lines is drawn in the wrong place? Both coordinates are 1px out vertically.

Also, badly mapped/missing = (equals) sign in font?

compare

VS

on launch:

on run:

Implement tests for api calls.
Possible testing framework:
https://github.com/bjornbytes/lust

PNG loading doesn't support v8 files

And maybe other versions?

Matts-iMac:picolove matt$ love . 26413.p8.png 
Loading /26413.p8.png
version 8
codelen 27094
Error: main.lua:598: unknown file version 8
stack traceback:
    [C]: in function 'error'
    main.lua:598: in function 'load_p8'
    main.lua:1705: in function '_load'
    main.lua:352: in function 'load'
    main.lua:888: in function <main.lua:878>
    [C]: in function 'xpcall'

Celeste: Random corruption, multiple players, skipping levels
Tomb of G'Nir: Random 8 and 4s are visible
Rolly: Doesn't Start

it would be cool of there was a cset and cget function for setting and getting colors in the a palette.

Hello!
Was playing around your awesome project!
One thing I found, that it doesn't display colors 15 and 14:

I did not modify the source code or something else.
Thanks, Egor.

Hey picolove folk! When trying out this project on a cart that I want to expand a bit code wise, most of the things don't work and there seems to be some buttons that are held by default?

I'm looking for someone to help me fix these issues. I'm willing to financially compensate for the time invested. I've included the cart in this message, a clear difference can be seen when being ran from pico8 vs picolove.

Should be able to go back/fwd over typed text with left/right

And also recall previous command line(s) with up/down

Use lua-fmt for code formatting:
https://github.com/trixnz/lua-fmt

Advantages:

• Consistent style
• No manual code formatting
• No discussion about code style

Hi,

I have been trying to run picolove on the Raspberry Pi platform.
It's running raspbian and SDL2 is built with GLES2 support. Many SDL2 games work on it using the GLES2 renderer.
On the LÖVE side of things, the SuperToast demo works perfectly too.
Howeve, picolove gives me this:

pi@raspberrypi:~/pico $ love picolove/
Error: Cannot link shader program object:
ERROR:CUSTOM-14 (fragment shader, line 5) Support for indexing array/vector/matrix with a non-constant is not mandated in the fragment shader
stack traceback:
    [C]: in function 'newShader'
    main.lua:244: in function 'load'
    main.lua:659: in function <main.lua:647>
    [C]: in function 'xpcall'

Any idea on what could be wrong here?

thanks!

When I try to run the help command, it says "Help is not implemented yet". It's really not implemented or is an error?

Hi, @ftsf ! @felipebueno from the PICO-8 BBS here.

I saw the video where you play Celeste on PicoLove at 60fps and it's preatty neat. So I cloned your repo and tried to run it here but it's throwing an error: Error: main.lua:1227: attempt to index local 'm' (a nil value)

warning -> warn
setfps -> fps
_keyup -> keyr
_keydown -> keyp
_textinput -> keyc
_touchup -> touchr
_touchdown -> touchp
_getcursorx -> curx
_getcursory -> cury
_getpicoloveversion -> ver

Hi, are you still working on this?
There are still a few open pull request without any feedback.

Would be sad to see this die because of inactivity.

I'm trying to run a game called light bikes http://www.lexaloffle.com/bbs/?tid=2501
that uses pget as a test collision mechanism, so I looked on the code of pget and I found it calling :getPixel(x,y) on the screen canvas, in love 10 this function has been removed, and now you have to do Canvas:newImageData( ), And that will drop fps a lot .

The solution is that you create 2 things: canvas, imagedata
then whenever something get drawn on the canvas you will have to do imagedata:setPixel

At first, a pop-up appeared on when I tried to run picolove.
Then colors are abnormal like above, then when I try to type help or load a game the screen becomes black.
What should I do ?

Contrast the following cart in pico8 and picolove

http://www.lexaloffle.com/bbs/?tid=2464

It's set to tween using ease_in_out_cubicwhich gets great results in pico8, but bad results in picolove. Other easing functions are also affected.

function ease_in_out_cubic(t,b,c,d)  -- cubic easing in/out - acceleration until halfway, then deceleration
  t /= d/2
  if (t < 1) return c/2*t*t*t + b
  t -= 2
  return c/2*(t*t*t + 2) + b
end

I've ruled out short operators by manually expanding them. No difference.

Perhaps an issue with expression parsing?

I get this error when loading .v8.png files, which makes sense considering I'm guessing picolove is for 0.1.1 and not 0.1.2.

I mention this because it is inconsistent with the .v8 files.

Might make more sense to show a warning instead for both filetypes, and then attempt to run it anyway?

To make distribution easier, a ready to copy & paste license.txt for the third-party dependencies (the libs folder) would be helpful.

See löve license.txt for a template.

While most of the libraries don't require attribution in a binary release at least the optional lust library (MIT License) does.

Additionally the strict.lua is possibly taken from https://github.com/moai/moai-dev/blob/develop/3rdparty/lua-5.1.3/etc/README and was further modified afterwards. It has no license information (was public domain initially). This would be easier to track with a license file.
Optionally a newer version of strict.lua could be taken as it is/was part of the lua source code distribution which since has updated the license of strict.lua to be the same as the lua license.

Merge back changes from https://github.com/gamax92/picolove/

Most of the carts nowadays are version later than 8, and it is really starting to cause the emulator some issues with functionality. Most carts that I own are unplayable, due to an incorrect version. Please add support for it sometime in the future.

Hello! Just found your awesome project. Downloaded it, and compiled (I mean zipped it up). But here is a thing: I can't install demos. It says:

syntax error
'=' expected near '<EOF>'

Maybe i'm doing something wrong? Thanks!

The button symbols are missing

Ex: Press (x) to start looks like
Press to start