mame/plugins/data/init.lua
Vas Crabb b67b969bf0 -Improved some Lua APIs:
* Moved several machine lifecycle callbacks to the notifier/subscriber
  model.  The old callback registration model is still available for
  them for now, but prints a deprecation warning.
* Added pre-save/post-load notifications.
* Use a single allocated timer rather than one anonymous timer per
  waiter.  Waiters no longer prevent saved states from being loaded.
* Clean up outstanding waiters on stop or state load rather than just
  leaking them.
* Started documenting parts of the emulator interface object that should
  be relatively stable.

-imagedev/avivideo.cpp: Fixed an object leak on unload.  Also changed
 some other media image devices to use smart pointers.
2023-04-07 06:20:40 +10:00

91 lines
1.9 KiB
Lua

-- license:BSD-3-Clause
-- copyright-holders:Carl
-- A data script should contain two functions check which takes a set name and returns the data
-- heading if it supports the set otherwise nil and get which returns the data
-- the script should be named data_<name>.lua
-- this is set default on in the plugin.json
local exports = {
name = 'data',
version = '0.0.2',
description = 'Data plugin',
license = 'BSD-3-Clause',
author = { name = 'Carl' } }
local data = exports
local plugindir
local reset_subscription
function data.set_folder(path)
plugindir = path
end
function data.startplugin()
local data_scr = {}
local valid_lst = {}
local cur_set
local cur_list
reset_subscription = emu.add_machine_reset_notifier(
function ()
data_scr = {}
for file in lfs.dir(plugindir) do
local name = string.match(file, '^(data_.*).lua$')
if name then
local script = require('data/' .. name)
if script then
table.insert(data_scr, script)
end
end
end
end)
emu.register_callback(
function (set)
local ret = {}
if set == '' then
set = emu.romname()
end
if set == cur_set then
return cur_list
end
cur_set = set
if not set then
return nil
end
valid_lst = {}
for num, scr in ipairs(data_scr) do
local setname, softname = set:match('^([^,]+),?(.*)$')
if softname == '' then
softname = nil
end
local name = scr.check(setname, softname)
if name then
table.insert(ret, name)
table.insert(valid_lst, scr)
end
end
cur_list = ret
return ret
end,
'data_list')
emu.register_callback(
function (num)
return valid_lst[num + 1].get()
end,
'data')
emu.register_callback(
function (num)
local ver
if valid_lst[num + 1].ver then
ver = valid_lst[num + 1].ver()
end
return ver or ''
end,
'data_version')
end
return exports