mirror of
https://github.com/birth1mark/orbis8.git
synced 2026-10-29 02:00:29 +01:00
birth1mark
29a17766a1
- Added integrated 🌐 BBS Store tab to arcade BIOS interface (DefaultCart.h)
- Implemented C++ Lua API bindings: __bbs_listfeatured, __bbs_download, __bbs_isdownloaded, __refreshcarts
- Curated top-rated community games catalog with 1-click download & play
- Added custom BBS Cartridge ID downloader with on-screen character picker
- Added robust magic-byte verification (PNG/p8) on downloaded cartridges
- Updated README.md and ARCHITECTURE.md documentation
765 lines
21 KiB
C++
765 lines
21 KiB
C++
#pragma once
|
|
|
|
#include <string>
|
|
|
|
|
|
//from zepto 8 bios.p8
|
|
//this is the bios-- needs to get loaded first, and then will run every cart
|
|
|
|
const char * p8Bios = R"#(
|
|
-- The functions below are normally attached to the program code, but are here for simplicity
|
|
---------------------------------
|
|
--Table Helpers
|
|
---------------------------------
|
|
|
|
--string indexing: https://lua-users.org/wiki/StringIndexing
|
|
getmetatable('').__index = function(str,i) return string.sub(str,i,i) end
|
|
|
|
--from zepto 8 bios.p8
|
|
-- PicoLove functions did not return values added/deleted
|
|
|
|
__z8_load_code = load
|
|
--todo: see if we need the other z8 stuff
|
|
__z8_stopped = false
|
|
__z8_persist_delay = 0
|
|
__z8_cart_running = false
|
|
|
|
function all(c)
|
|
if (c==nil or #c==0) return function() end
|
|
local i,prev = 1,nil
|
|
return function()
|
|
-- increment unless the current value changed
|
|
if (c[i]==prev) i+=1
|
|
-- skip until non-nil or end of table
|
|
while (i<=#c and c[i]==nil) i+=1
|
|
prev=c[i]
|
|
return prev
|
|
end
|
|
end
|
|
|
|
function foreach(c, f)
|
|
for v in all(c) do f(v) end
|
|
end
|
|
|
|
-- Experimenting with count() on PICO-8 shows that it returns the number
|
|
-- of non-nil elements between c[1] and c[#c], which is slightly different
|
|
-- from returning #c in cases where the table is no longer an array. See
|
|
-- the tables.p8 unit test cart for more details.
|
|
--
|
|
-- count() takes an optional value as its second argument, if this is present
|
|
-- then count() will return the number of times the value is found in the table.
|
|
--
|
|
-- We also try to mimic the PICO-8 error messages:
|
|
-- count(nil) → attempt to get length of local 'c' (a nil value)
|
|
-- count("x") → attempt to index local 'c' (a string value)
|
|
function count(c,v)
|
|
local cnt,max = 0,#c
|
|
if v == nil then
|
|
for i=1,max do if (c[i] != nil) cnt+=1 end
|
|
else
|
|
for i=1,max do if (c[i] == v) cnt+=1 end
|
|
end
|
|
return cnt
|
|
end
|
|
|
|
-- It looks like table.insert() would work here but we also try to mimic
|
|
-- the PICO-8 error messages:
|
|
-- add("") → attempt to index local 'c' (a string value)
|
|
function add(c, x, i)
|
|
if c != nil then
|
|
-- insert at i if specified, otherwise append
|
|
i=i and mid(1,i\1,#c+1) or #c+1
|
|
for j=#c,i,-1 do c[j+1]=c[j] end
|
|
c[i]=x
|
|
return x
|
|
end
|
|
end
|
|
|
|
function del(c,v)
|
|
if c != nil then
|
|
local max = #c
|
|
for i=1,max do
|
|
if c[i]==v then
|
|
for j=i,max do c[j]=c[j+1] end
|
|
return v
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
function deli(c,i)
|
|
if c != nil then
|
|
-- delete at i if specified, otherwise at the end
|
|
i=i and mid(1,i\1,#c) or #c
|
|
local v=c[i]
|
|
for j=i,#c do c[j]=c[j+1] end
|
|
return v
|
|
end
|
|
end
|
|
|
|
function serial(chan, address, len)
|
|
--stubbed out
|
|
--return len
|
|
end
|
|
|
|
|
|
local error = error
|
|
local tonumber = tonumber
|
|
local __cartdata = __cartdata
|
|
|
|
---------------------------------
|
|
--Coroutines
|
|
---------------------------------
|
|
yield = coroutine.yield
|
|
cocreate = coroutine.create
|
|
coresume = coroutine.resume
|
|
costatus = coroutine.status
|
|
yield = coroutine.yield
|
|
|
|
---------------------------------
|
|
--Debug
|
|
---------------------------------
|
|
trace = debug.traceback
|
|
|
|
sub = string.sub
|
|
pack = table.pack
|
|
unpack = table.unpack
|
|
|
|
function stop()
|
|
__z8_stopped = true
|
|
--error()
|
|
end
|
|
|
|
function assert(cond, msg)
|
|
if not cond then
|
|
color(14) print("assertion failed:")
|
|
color(6) print(msg or "assert()")
|
|
stop()
|
|
end
|
|
end
|
|
|
|
function cartdata(s)
|
|
if __cartdata() then
|
|
print('cartdata() can only be called once')
|
|
abort()
|
|
return false
|
|
end
|
|
-- PICO-8 documentation: id is a string up to 64 characters long
|
|
if #s == 0 or #s > 64 then
|
|
print('cart data id too long')
|
|
abort()
|
|
return false
|
|
end
|
|
-- PICO-8 documentation: legal characters are a..z, 0..9 and underscore (_)
|
|
-- PICO-8 changelog: allow '-' in cartdat() names
|
|
if string.match(s, '[^-abcdefghijklmnopqrstuvwxyz0123456789_]') then
|
|
print('cart data id: bad char')
|
|
abort()
|
|
return false
|
|
end
|
|
return __cartdata(s)
|
|
end
|
|
|
|
--Button emoji variables
|
|
⬅️ = 0
|
|
➡️ = 1
|
|
⬆️ = 2
|
|
⬇️ = 3
|
|
🅾️ = 4
|
|
❎ = 5
|
|
|
|
--fiilp emoji variables
|
|
█ = 0
|
|
▒ = 0x5a5a.8
|
|
🐱 = 0x511f.8
|
|
░ = 0x7d7d.8
|
|
✽ = 0xb81d.8
|
|
● = 0xf99f.8
|
|
♥ = 0x51bf.8
|
|
☉ = 0xb5bf.8
|
|
웃 = 0x999f.8
|
|
⌂ = 0xb11f.8
|
|
😐 = 0xa0e0.8
|
|
♪ = 0x9b3f.8
|
|
◆ = 0xb1bf.8
|
|
… = 0xf5ff.8
|
|
★ = 0xb15f.8
|
|
⧗ = 0x1b1f.8
|
|
ˇ = 0xf5bf.8
|
|
∧ = 0x7adf.8
|
|
▤ = 0x0f0f.8
|
|
▥ = 0x5555.8
|
|
|
|
function menuitem(index, label, callback)
|
|
--only 5 open slots
|
|
if index < 1 or index > 5 then return end
|
|
|
|
if not label or not callback then
|
|
callback = nil
|
|
end
|
|
|
|
__f08_menu_items[index][1] = label
|
|
__f08_menu_items[index][2] = callback
|
|
end
|
|
|
|
function __addbreadcrumb(label, carttoload)
|
|
__f08_menu_items[8] = {nil, nil}
|
|
__f08_menu_items[8][1] = label
|
|
__f08_menu_items[8][2] = function() load(carttoload) end
|
|
end
|
|
|
|
|
|
__f08_menu_items = {
|
|
[0] = {"continue", __togglepausemenu},
|
|
{nil, nil},
|
|
{nil, nil},
|
|
{nil, nil},
|
|
{nil, nil},
|
|
{nil, nil},
|
|
{"reset cart", __resetcart},
|
|
{"exit to menu", __loaddefaultcart},
|
|
{"exit to settings", __loadsettingscart}
|
|
}
|
|
|
|
__f08_menu_selected = 0
|
|
|
|
function __f08_menu_update()
|
|
if btnp(3) and __f08_menu_selected < #__f08_menu_items then
|
|
repeat
|
|
__f08_menu_selected = __f08_menu_selected + 1
|
|
until __f08_menu_items[__f08_menu_selected][1] ~= nil
|
|
end
|
|
|
|
if btnp(2) and __f08_menu_selected > 0 then
|
|
repeat
|
|
__f08_menu_selected = __f08_menu_selected - 1
|
|
until __f08_menu_items[__f08_menu_selected][1] ~= nil
|
|
end
|
|
|
|
if btnp(0) or btnp(1) or btnp(4) or btnp(5) then
|
|
local bval = 0
|
|
local allowreturn = false
|
|
|
|
if btnp(4) or btnp(5) then
|
|
bval = 16+32+64
|
|
allowreturn = true
|
|
else
|
|
if btnp(0) then
|
|
bval = 1
|
|
elseif btnp(1) then
|
|
bval = 2
|
|
end
|
|
|
|
end
|
|
|
|
toexec = __f08_menu_items[__f08_menu_selected]
|
|
if toexec and toexec[2] then
|
|
local toexec_result = toexec[2](bval)
|
|
|
|
if __f08_menu_selected > 0 and __f08_menu_selected < 6 and allowreturn and not toexec_result then
|
|
__f08_menu_selected = 0
|
|
__togglepausemenu()
|
|
end
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
function __f08_menu_draw()
|
|
local menuwidth = 82
|
|
local itemcount = 0
|
|
for i=0, 8, 1 do
|
|
item = __f08_menu_items[i]
|
|
if item and item[1] then
|
|
itemcount = itemcount + 1
|
|
end
|
|
end
|
|
local menuheight = 8 + itemcount*10
|
|
local menux = (128 - menuwidth) / 2
|
|
local menuy = (128 - menuheight) / 2
|
|
|
|
rectfill(menux, menuy, menux + menuwidth, menuy + menuheight, 0)
|
|
rect(menux+1, menuy+1, menux + menuwidth-1, menuy + menuheight-1, 7)
|
|
local itemx = menux + 8
|
|
local itemy = menuy + 6
|
|
local itemidx = 0
|
|
|
|
for i=0, 8, 1 do
|
|
item = __f08_menu_items[i]
|
|
if item and item[1] then
|
|
print(item[1], itemx, itemy, 7)
|
|
|
|
--draw selection indicator
|
|
if itemidx == __f08_menu_selected then
|
|
line(itemx-5, itemy, itemx-5, itemy+4, 7)
|
|
line(itemx-4, itemy+1, itemx-4, itemy+3, 7)
|
|
pset(itemx-3, itemy+2, 7)
|
|
end
|
|
|
|
itemy = itemy + 10
|
|
end
|
|
|
|
itemidx = itemidx + 1
|
|
end
|
|
end
|
|
|
|
|
|
|
|
--https://twitter.com/lexaloffle/status/1314463271324315649
|
|
--save host cpu by making most of the api local
|
|
local
|
|
time, t, sub, chr, ord, tostr, tonum,
|
|
add, del, deli, clip, color, pal, palt,
|
|
fillp, pget, pset, sget, sset, fget,
|
|
fset, circ, circfill, rect, rectfill, oval,
|
|
ovalfill, line, spr, sspr, mget, mset,
|
|
tline, peek, poke, peek2, poke2, peek4,
|
|
poke4, memcpy, memset, max, min, mid, flr,
|
|
ceil, cos, sin, atan2, rnd, srand, band,
|
|
bor, bxor, bnot, shl, shr, lshr, rotl, rotr,
|
|
rrect, rrectfill =
|
|
|
|
time, t, sub, chr, ord, tostr, tonum,
|
|
add, del, deli, clip, color, pal, palt,
|
|
fillp, pget, pset, sget, sset, fget,
|
|
fset, circ, circfill, rect, rectfill, oval,
|
|
ovalfill, line, spr, sspr, mget, mset,
|
|
tline, peek, poke, peek2, poke2, peek4,
|
|
poke4, memcpy, memset, max, min, mid, flr,
|
|
ceil, cos, sin, atan2, rnd, srand, band,
|
|
bor, bxor, bnot, shl, shr, lshr, rotl, rotr,
|
|
rrect, rrectfill
|
|
|
|
--save state code modified from ps4-p8
|
|
--https://github.com/voliva/ps4-p8/blob/ecba7f93ef9ba73ccb121b45ede6f46e651cef65/pico8_ps4/lua_lang_fns.cpp
|
|
--MIT license
|
|
|
|
eris.perm = {}
|
|
eris.unperm = {}
|
|
eris.original_G = {}
|
|
|
|
eris.init_persist_all = function()
|
|
-- lua pairs is not sorted. The order is actually random, changes on every execution (wtf?)
|
|
|
|
eris.settings("path", true)
|
|
|
|
local keyset={}
|
|
local n=0
|
|
for k,v in pairs(_G) do
|
|
n=n+1
|
|
keyset[n]=k
|
|
end
|
|
table.sort(keyset)
|
|
local i=0
|
|
for i=1,n do
|
|
local k=keyset[i]
|
|
local v=_G[k]
|
|
eris.perm[v] = i
|
|
eris.unperm[i] = v
|
|
eris.original_G[k] = v
|
|
end
|
|
end
|
|
|
|
eris.persist_all = function()
|
|
local new_symbols = {}
|
|
for k,v in pairs(_G) do
|
|
if eris.original_G[k] != v then
|
|
new_symbols[k] = v
|
|
end
|
|
end
|
|
|
|
return eris.persist(eris.perm, new_symbols)
|
|
end
|
|
|
|
eris.restore_all = function(persisted)
|
|
local new_symbols = eris.unpersist(eris.unperm, persisted)
|
|
for k,v in pairs(new_symbols) do
|
|
_G[k] = v
|
|
end
|
|
end
|
|
|
|
function __z8_strlen(s)
|
|
return #string.gsub(s, '[\128-\255]', 'XX')
|
|
end
|
|
|
|
-- Stubs for unimplemented functions
|
|
local function stub(s)
|
|
return function(a) __stub(s.."("..(a and '"'..tostr(a)..'"' or "")..")") end
|
|
end
|
|
save = stub("save")
|
|
info = stub("info")
|
|
abort = stub("abort")
|
|
folder = stub("folder")
|
|
resume = stub("resume")
|
|
reboot = stub("reboot")
|
|
dir = stub("dir")
|
|
ls = dir
|
|
|
|
function flip()
|
|
_update_buttons()
|
|
yield()
|
|
end
|
|
|
|
-- Load a cart from file or URL
|
|
function load(arg, arg2, arg3)
|
|
local success, msg
|
|
|
|
success, msg = __load(arg, arg2, arg3), ""
|
|
|
|
return success
|
|
|
|
|
|
--if success then
|
|
-- print('ok')
|
|
--else
|
|
-- color(14)
|
|
-- print('failed')
|
|
-- local x,y = cursor()
|
|
-- cursor(0, y)
|
|
-- print(msg)
|
|
--end
|
|
|
|
end
|
|
|
|
--todo: make this bettter/verify the list
|
|
function __is_api(funcname)
|
|
local picofuncnames = {
|
|
-- standard lua functions
|
|
assert = 1, getmetatable = 1, inext = 1, next = 1, ipairs = 1, pairs = 1, rawequal = 1,
|
|
rawlen = 1, rawget = 1, rawset = 1, setmetatable = 1, type = 1, pack = 1, unpack = 1,
|
|
load = 1, print = 1, select = 1, tostring = 1,
|
|
-- pico-8 math
|
|
max = 1, min = 1, mid = 1, ceil = 1, flr = 1, cos = 1, sin = 1, atan2 = 1, sqrt = 1,
|
|
abs = 1, sgn = 1, band = 1, bor = 1, bxor = 1, bnot = 1, shl = 1, shr = 1, lshr = 1,
|
|
rotl = 1, rotr = 1, tostr = 1, tonum = 1, srand = 1, rnd = 1, ord = 1, chr = 1,
|
|
split = 1,
|
|
-- pico-8 system
|
|
run = 1, reload = 1, reset = 1, dget = 1, dset = 1, peek = 1, peek2 = 1, peek4 = 1,
|
|
poke = 1, poke2 = 1, poke4 = 1, memcpy = 1, memset = 1, stat = 1, printh = 1, extcmd = 1,
|
|
-- pico-8 input
|
|
_update_buttons = 1, btn = 1, btnp = 1,
|
|
-- pico-8 graphics
|
|
cursor = 1, camera = 1, circ = 1, circfill = 1,
|
|
clip = 1, cls = 1, color = 1, fillp = 1, fget = 1, fset = 1, line = 1, map = 1, mget = 1,
|
|
mset = 1, oval = 1, ovalfill = 1, pal = 1, palt = 1, pget = 1, pset = 1, rect = 1, rectfill = 1, rrect = 1, rrectfill = 1,
|
|
serial = 1, sget = 1, sset = 1, spr = 1, sspr = 1, tline = 1,
|
|
-- pico-8 audio
|
|
music = 1, sfx = 1,
|
|
-- pico-8 time
|
|
time = 1, t = 1,
|
|
-- pico-8 coroutines
|
|
cocreate = 1, coresume = 1, costatus = 1, yield = 1, trace = 1, stop = 1,
|
|
-- pico-8 table helpers
|
|
count = 1, add = 1, sub = 1, foreach = 1, all = 1, del = 1, deli = 1,
|
|
-- pico-8 cart data
|
|
dget = 1, dset = 1, cartdata = 1,
|
|
-- pico-8 cart management
|
|
load = 1, save = 1, info = 1, abort = 1, folder = 1,
|
|
resume = 1, reboot = 1, dir = 1, ls = 1, flip = 1, mapdraw = 1, menuitem = 1,
|
|
cstore = 1, _set_fps = 1,
|
|
-- fake-08 internal
|
|
__ispaused = 1, __resetcart = 1, __loaddefaultcart = 1, __loadsettingscart = 1,
|
|
__listcarts = 1, __listdirs = 1, __cd = 1, __pwd = 1, __refreshcarts = 1,
|
|
__bbs_listfeatured = 1, __bbs_download = 1, __bbs_isdownloaded = 1,
|
|
__getbioserror = 1, __getsetting = 1, __setsetting = 1, __loadlabel = 1
|
|
}
|
|
return picofuncnames[funcname] == 1
|
|
end
|
|
|
|
-- Missing PICO-8 API functions: holdframe, exit
|
|
-- Missing editor/system functions: import, export, cd, mkdir, help,
|
|
-- splore, login, backup, install_games, install_demos, keyconfig, shutdown, scoresub
|
|
-- Internal PICO-8 functions: _pausemenu, _update_framerate,
|
|
-- __flip, __trace, __type, _map_display, _mark_cpu, _set_mainloop_exists, _startframe,
|
|
-- _menuitem, _get_menu_item_selected, set_draw_slice
|
|
|
|
function create_sandbox()
|
|
local t = {}
|
|
for k,v in pairs(_ENV) do
|
|
if __is_api(k) then
|
|
t[k] = v
|
|
end
|
|
end
|
|
-- Button emoji variables (must be copied to sandbox for carts to use btn(❎) etc)
|
|
t["⬅️"] = 0
|
|
t["➡️"] = 1
|
|
t["⬆️"] = 2
|
|
t["⬇️"] = 3
|
|
t["🅾️"] = 4
|
|
t["❎"] = 5
|
|
-- Fill pattern emoji variables
|
|
t["█"] = 0
|
|
t["▒"] = 0x5a5a.8
|
|
t["🐱"] = 0x511f.8
|
|
t["░"] = 0x7d7d.8
|
|
t["✽"] = 0xb81d.8
|
|
t["●"] = 0xf99f.8
|
|
t["♥"] = 0x51bf.8
|
|
t["☉"] = 0xb5bf.8
|
|
t["웃"] = 0x999f.8
|
|
t["⌂"] = 0xb11f.8
|
|
t["😐"] = 0xa0e0.8
|
|
t["♪"] = 0x9b3f.8
|
|
t["◆"] = 0xb1bf.8
|
|
t["…"] = 0xf5ff.8
|
|
t["★"] = 0xb15f.8
|
|
t["⧗"] = 0x1b1f.8
|
|
t["ˇ"] = 0xf5bf.8
|
|
t["∧"] = 0x7adf.8
|
|
t["▤"] = 0x0f0f.8
|
|
t["▥"] = 0x5555.8
|
|
return t;
|
|
end
|
|
|
|
__cart_sandbox = nil
|
|
|
|
|
|
|
|
-- copied directly from zepto 8 for the time being
|
|
|
|
--
|
|
-- Utility functions
|
|
--
|
|
function __z8_reset_state()
|
|
-- From the PICO-8 documentation:
|
|
-- “The draw state is reset each time a program is run. This is equivalent to calling:
|
|
-- clip() camera() pal() color(6)”
|
|
-- Note from Sam: color() is actually short for color(6)
|
|
-- Note from Sam: also add fillp() here.
|
|
clip() camera() pal() color() fillp()
|
|
end
|
|
|
|
function __z8_reset_cartdata()
|
|
__cartdata(nil)
|
|
end
|
|
|
|
function __z8_run_cart(cart_code)
|
|
-- Glue code that manages the game loop after the cart's code runs.
|
|
local glue_code = [[--
|
|
if (_init) _init()
|
|
if _update or _update60 or _draw then
|
|
while true do
|
|
if _update60 then
|
|
_update_buttons()
|
|
_update60()
|
|
else
|
|
yield() -- yield each other frame for 30fps
|
|
_update_buttons()
|
|
if (_update) _update()
|
|
end
|
|
if _draw then
|
|
_draw()
|
|
flip()
|
|
else
|
|
yield()
|
|
end
|
|
end
|
|
end
|
|
]]
|
|
|
|
__z8_loop = cocreate(function()
|
|
-- Memory should be reset to default by the VM before this call
|
|
-- First reload cart into memory
|
|
reload()
|
|
|
|
__z8_reset_state()
|
|
__z8_reset_cartdata()
|
|
|
|
-- Load cart and run the user-provided functions. Note that if the
|
|
-- cart code returns before the end, our added code will not be
|
|
-- executed, and nothing will work. This is also PICO-8's behaviour.
|
|
-- The code has to be appended as a string because the functions
|
|
-- may be stored in local variables.
|
|
-- __z8_load_code points to lua's load function https://www.lua.org/manual/5.2/manual.html#pdf-load
|
|
|
|
if __cart_sandbox ~= nil then
|
|
__cart_sandbox = nil
|
|
end
|
|
|
|
__cart_sandbox = create_sandbox()
|
|
-- Store sandbox in registry for C fallback (used when _ENV is modified)
|
|
rawset(debug.getregistry(), "__PICO8_SANDBOX", __cart_sandbox)
|
|
local code, ex = __z8_load_code(cart_code..glue_code, nil, nil,
|
|
__cart_sandbox)
|
|
|
|
if not code then
|
|
color(14) print('syntax error')
|
|
color(6) print(ex)
|
|
error(ex or "syntax error")
|
|
end
|
|
|
|
-- Mark that a cart is now running (used for pause menu logic)
|
|
__z8_cart_running = true
|
|
|
|
-- Run cart code
|
|
code()
|
|
end)
|
|
end
|
|
|
|
-- FIXME: this function is quite a mess
|
|
function __z8_tick()
|
|
if (costatus(__z8_loop) == "dead") return -1
|
|
|
|
-- Check if pause menu is active
|
|
if __ispaused() then
|
|
_update_buttons()
|
|
__f08_menu_update()
|
|
__f08_menu_draw()
|
|
return 0
|
|
end
|
|
|
|
ret, err = coresume(__z8_loop)
|
|
|
|
-- XXX: test eris persistence
|
|
__z8_persist_delay += 1
|
|
if __z8_persist_delay > 30 and btnp(13) then
|
|
__z8_persist_delay = 0
|
|
if backup then
|
|
__z8_loop = unpersist(backup)
|
|
else
|
|
backup = persist(__z8_loop)
|
|
end
|
|
end
|
|
|
|
if __z8_stopped then
|
|
__z8_stopped = false -- FIXME: what now?
|
|
elseif not ret then
|
|
printh(tostr(err))
|
|
-- Return to menu on error
|
|
__loaddefaultcart()
|
|
return -1
|
|
end
|
|
return 0
|
|
end
|
|
|
|
|
|
--
|
|
-- Splash sequence
|
|
--
|
|
|
|
local function print_clear(s)
|
|
-- empty next line
|
|
local y, c = @0x5f27, color(0)
|
|
rectfill(0, y, 127, y + 5)
|
|
color(c)
|
|
print(s)
|
|
end
|
|
|
|
local function do_command(cmd)
|
|
local c = color()
|
|
if string.match(cmd, '^ *$') then
|
|
-- empty line
|
|
elseif string.match(cmd, '^ *run *$') then
|
|
run()
|
|
elseif string.match(cmd, '^ *load[ |(]') then
|
|
load(string.gsub(cmd, '^ *load *', ''))
|
|
elseif cmd == 'help' then
|
|
color(12)
|
|
print_clear('') print_clear('commands') print_clear('')
|
|
color(6)
|
|
print_clear('load <filename>')
|
|
print_clear('run')
|
|
print_clear('')
|
|
else
|
|
color(14)
|
|
print_clear('syntax error')
|
|
end
|
|
color(c)
|
|
end
|
|
|
|
function __z8_shell()
|
|
-- activate project
|
|
poke(0x5f2d, 1)
|
|
local history = {}
|
|
local cmd, caret = "", 0
|
|
local start_y = @0x5f27
|
|
while true do
|
|
local exec = false
|
|
-- read next characters and act on them
|
|
local chars = stat(30) and stat(31) or ""
|
|
for n = 1, #chars do
|
|
local c = sub(chars, n, n)
|
|
if c == "\8" then
|
|
if caret > 0 then
|
|
caret -= 1
|
|
cmd = sub(cmd, 0, caret)..sub(cmd, caret + 2, #cmd)
|
|
end
|
|
elseif c == "\x7f" then
|
|
if caret < #cmd then
|
|
cmd = sub(cmd, 0, caret)..sub(cmd, caret + 2, #cmd)
|
|
end
|
|
elseif c == "\r" then
|
|
exec = true
|
|
elseif #cmd < 255 then
|
|
cmd = sub(cmd, 0, caret)..c..sub(cmd, caret + 1, #cmd)
|
|
caret += 1
|
|
end
|
|
end
|
|
-- left/right/up/down handled by buttons instead of keys (FIXME)
|
|
if btnp(0) then
|
|
caret = max(caret - 1, 0)
|
|
elseif btnp(1) then
|
|
caret = min(caret + 1, #cmd)
|
|
elseif btnp(2) and #history > 0 then
|
|
if not history_pos then
|
|
history_pos = #history + 1
|
|
end
|
|
if history_pos == #history + 1 then
|
|
cmd_bak = cmd
|
|
end
|
|
if history_pos > 1 then
|
|
history_pos -= 1
|
|
cmd = history[history_pos]
|
|
caret = #cmd
|
|
end
|
|
elseif btnp(3) and #history > 0 then
|
|
if not history_pos then
|
|
cmd, caret = "", 0
|
|
elseif history_pos <= #history then
|
|
history_pos += 1
|
|
cmd = history[history_pos] or cmd_bak
|
|
caret = #cmd
|
|
end
|
|
end
|
|
-- fixme: print() behaves slightly differently when
|
|
-- scrolling in the command prompt
|
|
local pen = @0x5f25
|
|
if exec then
|
|
-- return was pressed, so print an empty line to ensure scrolling
|
|
cursor(0, start_y)
|
|
print('')
|
|
start_y = @0x5f27
|
|
do_command(cmd)
|
|
start_y = @0x5f27
|
|
flip()
|
|
if (#cmd > 0 and cmd != history[#history]) add(history, cmd)
|
|
history_pos = nil
|
|
cmd, caret = "", 0
|
|
else
|
|
rectfill(0, start_y, (__z8_strlen(cmd) + 3) * 4, start_y + 5, 0)
|
|
color(7)
|
|
print('> ', 0, start_y, 7)
|
|
print(cmd, 8, start_y, 7)
|
|
-- display cursor and immediately hide it after we flip() so that it
|
|
-- does not remain in later frames
|
|
local on = t() * 5 % 2 > 1
|
|
if (on) rectfill(caret * 4 + 8, start_y, caret * 4 + 11, start_y + 4, 8)
|
|
-- Suppress pause menu if Enter key is pending (will be processed next frame)
|
|
if stat(30) then poke(0x5f30, 1) end
|
|
flip()
|
|
if (on) rectfill(caret * 4 + 8, start_y, caret * 4 + 11, start_y + 4, 0)
|
|
end
|
|
poke(0x5f25, pen)
|
|
end
|
|
end
|
|
|
|
|
|
--
|
|
-- Initialise the VM
|
|
--
|
|
__z8_loop = cocreate(__z8_shell)
|
|
|
|
)#";
|
|
|
|
|