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https://github.com/minetest/minetest.git
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089797dbe6
Covers the case where mods insert their callbacks manually into "minetest.registered_<callbacks>" (often to achieve a particular order of execution).
84 lines
3.0 KiB
Lua
84 lines
3.0 KiB
Lua
core.callback_origins = {}
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local getinfo = debug.getinfo
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debug.getinfo = nil
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--- Runs given callbacks.
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--
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-- Note: this function is also called from C++
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-- @tparam table callbacks a table with registered callbacks, like `core.registered_on_*`
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-- @tparam number mode a RunCallbacksMode, as defined in src/script/common/c_internal.h
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-- @param ... arguments for the callback
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-- @return depends on mode
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function core.run_callbacks(callbacks, mode, ...)
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assert(type(callbacks) == "table")
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local cb_len = #callbacks
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if cb_len == 0 then
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if mode == 2 or mode == 3 then
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return true
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elseif mode == 4 or mode == 5 then
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return false
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end
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end
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local ret
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for i = 1, cb_len do
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local cb_ret = callbacks[i](...)
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if mode == 0 and i == 1 or mode == 1 and i == cb_len then
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ret = cb_ret
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elseif mode == 2 then
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if not cb_ret or i == 1 then
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ret = cb_ret
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end
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elseif mode == 3 then
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if cb_ret then
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return cb_ret
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end
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ret = cb_ret
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elseif mode == 4 then
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if (cb_ret and not ret) or i == 1 then
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ret = cb_ret
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end
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elseif mode == 5 and cb_ret then
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return cb_ret
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end
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end
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return ret
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end
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--
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-- Callback registration
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--
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local function make_registration()
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local t = {}
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local registerfunc = function(func)
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t[#t + 1] = func
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core.callback_origins[func] = {
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mod = core.get_current_modname() or "??",
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name = getinfo(1, "n").name or "??"
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}
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--local origin = core.callback_origins[func]
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--print(origin.name .. ": " .. origin.mod .. " registering cbk " .. tostring(func))
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end
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return t, registerfunc
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end
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core.registered_globalsteps, core.register_globalstep = make_registration()
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core.registered_on_mods_loaded, core.register_on_mods_loaded = make_registration()
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core.registered_on_shutdown, core.register_on_shutdown = make_registration()
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core.registered_on_receiving_chat_message, core.register_on_receiving_chat_message = make_registration()
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core.registered_on_sending_chat_message, core.register_on_sending_chat_message = make_registration()
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core.registered_on_chatcommand, core.register_on_chatcommand = make_registration()
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core.registered_on_death, core.register_on_death = make_registration()
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core.registered_on_hp_modification, core.register_on_hp_modification = make_registration()
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core.registered_on_damage_taken, core.register_on_damage_taken = make_registration()
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core.registered_on_formspec_input, core.register_on_formspec_input = make_registration()
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core.registered_on_dignode, core.register_on_dignode = make_registration()
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core.registered_on_punchnode, core.register_on_punchnode = make_registration()
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core.registered_on_placenode, core.register_on_placenode = make_registration()
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core.registered_on_item_use, core.register_on_item_use = make_registration()
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core.registered_on_modchannel_message, core.register_on_modchannel_message = make_registration()
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core.registered_on_modchannel_signal, core.register_on_modchannel_signal = make_registration()
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core.registered_on_inventory_open, core.register_on_inventory_open = make_registration()
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