mirror of https://github.com/minetest/minetest.git
75 lines
1.5 KiB
Lua
75 lines
1.5 KiB
Lua
local builtin_shared = ...
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do
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local default = {mod = "??", name = "??"}
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core.callback_origins = setmetatable({}, {
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__index = function()
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return default
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end
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})
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end
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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 = nil
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for i = 1, cb_len do
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local origin = core.callback_origins[callbacks[i]]
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core.set_last_run_mod(origin.mod)
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local cb_ret = callbacks[i](...)
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if mode == 0 and i == 1 then
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ret = cb_ret
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elseif 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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function builtin_shared.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 = debug.getinfo(1, "n").name or "??"
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}
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end
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return t, registerfunc
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end
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function builtin_shared.make_registration_reverse()
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local t = {}
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local registerfunc = function(func)
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table.insert(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 = debug.getinfo(1, "n").name or "??"
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}
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end
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return t, registerfunc
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end
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