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-rw-r--r--builtin/game/chatcommands.lua18
-rw-r--r--doc/lua_api.txt4
2 files changed, 22 insertions, 0 deletions
diff --git a/builtin/game/chatcommands.lua b/builtin/game/chatcommands.lua
index 199b9e964..08dc1bb1d 100644
--- a/builtin/game/chatcommands.lua
+++ b/builtin/game/chatcommands.lua
@@ -15,6 +15,24 @@ function core.register_chatcommand(cmd, def)
core.registered_chatcommands[cmd] = def
end
+function core.unregister_chatcommand(name)
+ if core.registered_chatcommands[name] then
+ core.registered_chatcommands[name] = nil
+ else
+ core.log("warning", "Not unregistering chatcommand " ..name..
+ " because it doesn't exist.")
+ end
+end
+
+function core.override_chatcommand(name, redefinition)
+ local chatcommand = core.registered_chatcommands[name]
+ assert(chatcommand, "Attempt to override non-existent chatcommand "..name)
+ for k, v in pairs(redefinition) do
+ rawset(chatcommand, k, v)
+ end
+ core.registered_chatcommands[name] = chatcommand
+end
+
core.register_on_chat_message(function(name, message)
local cmd, param = string.match(message, "^/([^ ]+) *(.*)")
if not param then
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 9bdc01c07..aada851a1 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -2077,6 +2077,10 @@ Call these functions only at load time!
### Other registration functions
* `minetest.register_chatcommand(cmd, chatcommand definition)`
* Adds definition to minetest.registered_chatcommands
+* `minetest.override_chatcommand(name, redefinition)`
+ * Overrides fields of a chatcommand registered with register_chatcommand.
+* `minetest.unregister_chatcommand(name)`
+ * Unregisters a chatcommands registered with register_chatcommand.
* `minetest.register_privilege(name, definition)`
* `definition`: `"description text"`
* `definition`: `{ description = "description text", give_to_singleplayer = boolean}`