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Show warning if used bad commands in command block

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This commit is contained in:
Wuzzy 2017-05-24 00:20:25 +02:00
parent 99d0e0a239
commit 1ed15bcf98
1 changed files with 30 additions and 1 deletions
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31
mods/ITEMS/REDSTONE/mesecons_commandblock/init.lua
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@ -95,6 +95,22 @@ local function resolve_commands(commands, pos)
return commands
end
local function check_commands(commands)
for _, command in pairs(commands:split("\n")) do
local pos = command:find(" ")
local cmd, param = command, ""
if pos then
cmd = command:sub(1, pos - 1)
end
local cmddef = minetest.chatcommands[cmd]
if not cmddef then
-- Invalid chat command
return false, cmd
end
end
return true
end
local function commandblock_action_on(pos, node)
if node.name ~= "mesecons_commandblock:commandblock_off" then
return
@ -115,7 +131,6 @@ local function commandblock_action_on(pos, node)
local cmddef = minetest.chatcommands[cmd]
if not cmddef then
-- Invalid chat command
-- TODO: Somehow report this error
return
end
local dummy_player = ""
@ -205,6 +220,20 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
minetest.chat_send_player(player:get_player_name(), "Editing the command block has failed! You can only change the command block in Creative Mode!")
return
end
local check, bad_command = check_commands(fields.commands)
if check == false then
local msg
if bad_command ~= nil and bad_command ~= "" then
msg = "Warning: The command “"..bad_command.."” does not exist; your command block won't do anything. See the help command for a list of available commands."
if string.sub(bad_command, 1, 1) == "/" then
msg = msg .. " Hint: Try to remove the trailing slash"
end
else
msg = "Warning: You have entered an unknown command; your command block won't do anything.. See the help command for a list of available commands."
end
minetest.chat_send_player(player:get_player_name(), msg)
end
meta:set_string("commands", fields.commands)
initialize_data(meta)
else