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00f317b3d3
-plugins/autofire, plugins/inputmacro: Don't be so eager to create empty settings folders.
113 lines
3 KiB
Lua
113 lines
3 KiB
Lua
-- license:BSD-3-Clause
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-- copyright-holders:Jack Li
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local exports = {
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name = 'autofire',
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version = '0.0.4',
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description = 'Autofire plugin',
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license = 'BSD-3-Clause',
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author = { name = 'Jack Li' } }
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local autofire = exports
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function autofire.startplugin()
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-- List of autofire buttons, each being a table with keys:
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-- 'port' - port name of the button being autofired
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-- 'mask' - mask of the button field being autofired
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-- 'type' - input type of the button being autofired
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-- 'key' - input_seq of the keybinding
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-- 'key_cfg' - configuration string for the keybinding
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-- 'on_frames' - number of frames button is pressed
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-- 'off_frames' - number of frames button is released
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-- 'button' - reference to ioport_field
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-- 'counter' - position in autofire cycle
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local buttons = {}
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local input_manager
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local menu_handler
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local function process_frame()
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local function process_button(button)
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local pressed = input_manager:seq_pressed(button.key)
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if pressed then
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local state = button.counter < button.on_frames and 1 or 0
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button.counter = (button.counter + 1) % (button.on_frames + button.off_frames)
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return state
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else
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button.counter = 0
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return 0
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end
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end
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-- Resolves conflicts between multiple autofire keybindings for the same button.
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local button_states = {}
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for i, button in ipairs(buttons) do
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if button.button then
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local key = button.port .. '\0' .. button.mask .. '.' .. button.type
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local state = button_states[key] or {0, button.button}
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state[1] = process_button(button) | state[1]
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button_states[key] = state
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end
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end
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for i, state in pairs(button_states) do
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if state[1] ~= 0 then
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state[2]:set_value(state[1])
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else
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state[2]:clear_value()
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end
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end
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end
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local function load_settings()
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local loader = require('autofire/autofire_save')
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if loader then
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buttons = loader:load_settings()
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end
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input_manager = manager.machine.input
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end
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local function save_settings()
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local saver = require('autofire/autofire_save')
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if saver then
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saver:save_settings(buttons)
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end
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menu_handler = nil
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input_manager = nil
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buttons = {}
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end
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local function menu_callback(index, event)
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if menu_handler then
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return menu_handler:handle_menu_event(index, event, buttons)
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else
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return false
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end
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end
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local function menu_populate()
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if not menu_handler then
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local status, msg = pcall(function () menu_handler = require('autofire/autofire_menu') end)
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if not status then
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emu.print_error(string.format('Error loading autofire menu: %s', msg))
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end
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if menu_handler then
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menu_handler:init_menu(buttons)
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end
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end
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if menu_handler then
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return menu_handler:populate_menu(buttons)
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else
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return {{_p('plugin-autofire', 'Failed to load autofire menu'), '', 'off'}}
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end
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end
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emu.register_frame(process_frame)
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emu.register_prestart(load_settings)
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emu.register_stop(save_settings)
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emu.register_menu(menu_callback, menu_populate, _p('plugin-autofire', 'Autofire'))
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end
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return exports
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