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-rw-r--r--builtin/common/chatcommands.lua30
1 files changed, 30 insertions, 0 deletions
diff --git a/builtin/common/chatcommands.lua b/builtin/common/chatcommands.lua
new file mode 100644
index 000000000..ef3a24410
--- /dev/null
+++ b/builtin/common/chatcommands.lua
@@ -0,0 +1,30 @@
+-- Minetest: builtin/common/chatcommands.lua
+
+core.registered_chatcommands = {}
+
+function core.register_chatcommand(cmd, def)
+ def = def or {}
+ def.params = def.params or ""
+ def.description = def.description or ""
+ def.privs = def.privs or {}
+ def.mod_origin = core.get_current_modname() or "??"
+ 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 \ No newline at end of file