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Chatcommand: Show help message if func returns false without message

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#9440
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HybridDog 2020-10-03 18:33:43 +02:00 committed by GitHub
parent 947466ab28
commit 4b423ee9b1
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 2 deletions
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13
builtin/game/chat.lua
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@ -66,8 +66,17 @@ core.register_on_chat_message(function(name, message)
local has_privs, missing_privs = core.check_player_privs(name, cmd_def.privs) local has_privs, missing_privs = core.check_player_privs(name, cmd_def.privs)
if has_privs then if has_privs then
core.set_last_run_mod(cmd_def.mod_origin) core.set_last_run_mod(cmd_def.mod_origin)
local _, result = cmd_def.func(name, param) local success, result = cmd_def.func(name, param)
if result then if success == false and result == nil then
core.chat_send_player(name, "-!- Invalid command usage")
local help_def = core.registered_chatcommands["help"]
if help_def then
local _, helpmsg = help_def.func(name, cmd)
if helpmsg then
core.chat_send_player(name, helpmsg)
end
end
elseif result then
core.chat_send_player(name, result) core.chat_send_player(name, result)
end end
else else

2
doc/lua_api.txt
View File

@ -7949,6 +7949,8 @@ Used by `minetest.register_chatcommand`.
func = function(name, param), func = function(name, param),
-- Called when command is run. Returns boolean success and text output. -- Called when command is run. Returns boolean success and text output.
-- Special case: The help message is shown to the player if `func`
-- returns false without a text output.
} }
Note that in params, use of symbols is as follows: Note that in params, use of symbols is as follows: