[CSM] Add client-sided chat commands (#5092)

builtin/client/chatcommands.lua

@@ -0,0 +1,28 @@
+-- Minetest: builtin/client/chatcommands.lua
+
+
+core.register_on_sending_chat_messages(function(message)
+	if not (message:sub(1,1) == "/") then
+		return false
+	end
+	
+	core.display_chat_message("issued command: " .. message)
+	
+	local cmd, param = string.match(message, "^/([^ ]+) *(.*)")
+	if not param then
+		param = ""
+	end
+	
+	local cmd_def = core.registered_chatcommands[cmd]
+	
+	if cmd_def then
+		core.set_last_run_mod(cmd_def.mod_origin)
+		local success, message = cmd_def.func(param)
+		if message then
+			core.display_chat_message(message)
+		end
+		return true
+	end
+	
+	return false
+end)

builtin/client/init.lua

@@ -1,6 +1,7 @@
 -- Minetest: builtin/client/init.lua
 local scriptpath = core.get_builtin_path()..DIR_DELIM
 local clientpath = scriptpath.."client"..DIR_DELIM
+local commonpath = scriptpath.."common"..DIR_DELIM
 
 dofile(clientpath .. "register.lua")
 dofile(clientpath .. "preview.lua")

builtin/client/preview.lua

@@ -22,3 +22,10 @@ end)
 core.register_on_damage_taken(function(hp)
 	print("[PREVIEW] Damage taken " .. hp)
 end)
+
+-- This is an example function to ensure it's working properly, should be removed before merge
+core.register_chatcommand("dump", {
+	func = function(name, param)
+		return true, dump(_G)
+	end,
+})

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

builtin/game/chatcommands.lua

@@ -1,37 +1,10 @@
--- Minetest: builtin/chatcommands.lua
+-- Minetest: builtin/game/chatcommands.lua
 
 --
 -- Chat command handler
 --
 
-core.registered_chatcommands = {}
 core.chatcommands = core.registered_chatcommands -- BACKWARDS COMPATIBILITY
-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
 
 core.register_on_chat_message(function(name, message)
 	local cmd, param = string.match(message, "^/([^ ]+) *(.*)")

builtin/game/init.lua

@@ -22,6 +22,7 @@ dofile(gamepath.."deprecated.lua")
 dofile(gamepath.."misc.lua")
 dofile(gamepath.."privileges.lua")
 dofile(gamepath.."auth.lua")
+dofile(commonpath .. "chatcommands.lua")
 dofile(gamepath.."chatcommands.lua")
 dofile(gamepath.."static_spawn.lua")
 dofile(gamepath.."detached_inventory.lua")

src/client.cpp

@@ -1582,11 +1582,7 @@ void Client::typeChatMessage(const std::wstring &message)
 	sendChatMessage(message);
 
 	// Show locally
-	if (message[0] == L'/')
-	{
-		pushToChatQueue((std::wstring)L"issued command: " + message);
-	}
-	else
+	if (message[0] != L'/')
 	{
 		// compatibility code
 		if (m_proto_ver < 29) {

src/script/lua_api/l_client.cpp

@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "l_client.h"
 #include "l_internal.h"
 #include "util/string.h"
+#include "cpp_api/s_base.h"
 
 int ModApiClient::l_get_current_modname(lua_State *L)
 {
@@ -28,6 +29,26 @@ int ModApiClient::l_get_current_modname(lua_State *L)
 	return 1;
 }
 
+// get_last_run_mod()
+int ModApiClient::l_get_last_run_mod(lua_State *L)
+{
+	lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
+	const char *current_mod = lua_tostring(L, -1);
+	if (current_mod == NULL || current_mod[0] == '\0') {
+		lua_pop(L, 1);
+		lua_pushstring(L, getScriptApiBase(L)->getOrigin().c_str());
+	}
+	return 1;
+}
+
+// set_last_run_mod(modname)
+int ModApiClient::l_set_last_run_mod(lua_State *L)
+{
+	const char *mod = lua_tostring(L, 1);
+	getScriptApiBase(L)->setOriginDirect(mod);
+	return 0;
+}
+
 // display_chat_message(message)
 int ModApiClient::l_display_chat_message(lua_State *L)
 {
@@ -42,4 +63,6 @@ void ModApiClient::Initialize(lua_State *L, int top)
 {
 	API_FCT(get_current_modname);
 	API_FCT(display_chat_message);
+	API_FCT(set_last_run_mod);
+	API_FCT(get_last_run_mod);
 }

src/script/lua_api/l_client.h

@@ -28,8 +28,16 @@ class ModApiClient : public ModApiBase
 private:
 	// get_current_modname()
 	static int l_get_current_modname(lua_State *L);
+
+	// display_chat_message(message)
 	static int l_display_chat_message(lua_State *L);
 
+	// get_last_run_mod(n)
+	static int l_get_last_run_mod(lua_State *L);
+
+	// set_last_run_mod(modname)
+	static int l_set_last_run_mod(lua_State *L);
+
 public:
 	static void Initialize(lua_State *L, int top);
 };