mirror of https://github.com/mamedev/mame.git
73 lines
1.8 KiB
Lua
73 lines
1.8 KiB
Lua
-- license:BSD-3-Clause
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-- copyright-holders:Carl
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-- Layout scripts should return a table and a string. The table can have two optional keys reset and frame
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-- which have functions for values called on reset and frame draw respectively and the string is a unique name.
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local exports = {
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name = "layout",
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version = "0.0.1",
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description = "Layout helper plugin",
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license = "BSD-3-Clause",
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author = { name = "Carl" } }
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local layout = exports
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local frame_subscription, stop_subscription
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function layout.startplugin()
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local scripts = {}
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local function prepare_layout(file, script)
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local env = {
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machine = manager.machine,
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emu = {
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attotime = emu.attotime,
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render_bounds = emu.render_bounds,
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render_color = emu.render_color,
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print_verbose = emu.print_verbose,
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print_error = emu.print_error,
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print_warning = emu.print_warning,
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print_info = emu.print_info,
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print_debug = emu.print_debug },
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file = file,
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print = print,
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pairs = pairs,
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ipairs = ipairs,
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string = string,
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tonumber = tonumber,
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tostring = tostring,
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table = table }
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local script, err = load(script, script, "t", env)
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if not script then
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emu.print_verbose("error loading layout script " .. err)
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return
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end
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local hooks = script()
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if hooks ~= nil then
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table.insert(scripts, hooks)
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end
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end
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emu.register_callback(prepare_layout, "layout")
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frame_subscription = emu.add_machine_frame_notifier(function ()
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if manager.machine.paused then
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return
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end
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for num, scr in pairs(scripts) do
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if scr.frame then
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scr.frame()
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end
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end
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end)
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emu.register_prestart(function ()
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for num, scr in pairs(scripts) do
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if scr.reset then
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scr.reset()
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end
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end
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end)
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stop_subscription = emu.add_machine_stop_notifier(function ()
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scripts = {}
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end)
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end
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return exports
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