feat: add command descriptions and help cmd

lua/CC Tweaked/tutel/tutel-host.lua

@@ -267,8 +267,13 @@ registerEventListener("key", scrollLogs)
 local consoleCommands = {}
 local commandBuffer = ""
 
-function registerConsoleCommand(name, handler)
-    consoleCommands[name] = handler
+function registerConsoleCommand(name, handler, desc)
+    local cmd = {
+        ["name"] = name,
+        ["handler"] = handler,
+        ["desc"] = desc or ""
+    }
+    consoleCommands[name] = cmd
 end
 
 function processCommand()
@@ -285,7 +290,7 @@ function processCommand()
 
     if consoleCommands[cmd] then
         log.info("> %s %s", cmd, table.concat(args, " "))
-        consoleCommands[cmd](args)
+        consoleCommands[cmd].handler(args)
     else
         log.warning("Unknown command: %s", cmd)
     end
@@ -319,26 +324,26 @@ function echoCommand(args)
     log.info(table.concat(args, " "))
 end
 
-registerConsoleCommand("echo", echoCommand)
+registerConsoleCommand("echo", echoCommand, "Prints your message")
 
 function exitCommand(args)
     shouldRun = false
 end
 
-registerConsoleCommand("exit", exitCommand)
+registerConsoleCommand("exit", exitCommand, "Exits the program")
 
 function scanCommand(args)
     log.info("broadcasting SCAN")
     sendToAll("SCAN", { ["hostChannel"] = HOST_CHANNEL })
 end
 
-registerConsoleCommand("scan", scanCommand)
+registerConsoleCommand("scan", scanCommand, "Sends out a scan command to pair unlinked turtles")
 
 function clearCommand()
     log.buffer = {}
 end
 
-registerConsoleCommand("clear", clearCommand)
+registerConsoleCommand("clear", clearCommand, "Clears the console")
 
 function turtlesCommand()
     if #turtles == 0 then
@@ -357,7 +362,15 @@ function turtlesCommand()
     end
 end
 
-registerConsoleCommand("turtles", turtlesCommand)
+registerConsoleCommand("turtles", turtlesCommand, "Lists all the linked turtles")
+
+function helpCommand()
+    log.info("----- commands -----")
+    for _, cmd in pairs(consoleCommands) do
+        log.info("%s - %s", cmd.name, cmd.desc)
+    end
+end
+registerConsoleCommand("help", helpCommand, "Prints out all the console commands")
 
 --[[
     drawing functions