66 lines
2.3 KiB
Lua
66 lines
2.3 KiB
Lua
-- Localize globals
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local minetest, modlib, pairs, table = minetest, modlib, pairs, table
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-- Set environment
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local _ENV = ...
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setfenv(1, _ENV)
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players = {}
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registered_on_wielditem_changes = {function(...)
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local _, previous_item, _, item = ...
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if previous_item then
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((previous_item:get_definition()._modlib or {}).un_wield or modlib.func.no_op)(...)
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end
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if item then
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((item:get_definition()._modlib or {}).on_wield or modlib.func.no_op)(...)
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end
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end}
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--+ Registers an on_wielditem_change callback: function(player, previous_item, previous_index, item)
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--+ Will be called once with player, nil, index, item on join
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register_on_wielditem_change = modlib.func.curry(table.insert, registered_on_wielditem_changes)
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local function register_callbacks()
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minetest.register_on_joinplayer(function(player)
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local item, index = player:get_wielded_item(), player:get_wield_index()
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players[player:get_player_name()] = {
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wield = {
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item = item,
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index = index
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}
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}
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modlib.table.icall(registered_on_wielditem_changes, player, nil, index, item)
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end)
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minetest.register_on_leaveplayer(function(player)
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players[player:get_player_name()] = nil
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end)
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end
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-- Other on_joinplayer / on_leaveplayer callbacks should execute first
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if minetest.get_current_modname() then
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-- Loaded during load time, register callbacks after load time
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minetest.register_on_mods_loaded(register_callbacks)
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else
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-- Loaded after load time, register callbacks immediately
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register_callbacks()
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end
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-- TODO export
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local function itemstack_equals(a, b)
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return a:get_name() == b:get_name() and a:get_count() == b:get_count() and a:get_wear() == b:get_wear() and a:get_meta():equals(b:get_meta())
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end
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minetest.register_globalstep(function()
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for _, player in pairs(minetest.get_connected_players()) do
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local item, index = player:get_wielded_item(), player:get_wield_index()
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local playerdata = players[player:get_player_name()]
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if not playerdata then return end
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local previous_item, previous_index = playerdata.wield.item, playerdata.wield.index
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if not (itemstack_equals(item, previous_item) and index == previous_index) then
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playerdata.wield.item = item
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playerdata.wield.index = index
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modlib.table.icall(registered_on_wielditem_changes, player, previous_item, previous_index, item)
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end
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end
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end) |