feat: add commands

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

@@ -16,7 +16,7 @@
 ]]
 
 --[[
-    network variables
+    general variables
 ]]
 local HOST_CHANNEL = 1337
 local TURTLE_CHANNEL_BASE = 1338
@@ -29,6 +29,8 @@ modem.open(HOST_CHANNEL)
 local monitor = peripheral.find("monitor")
 local scr = monitor or term
 
+local shouldRun = true
+
 --[[
     helper functions
 ]]
@@ -263,7 +265,36 @@ registerEventListener("key", scrollLogs)
 --[[
     console
 ]]
+local consoleCommands = {}
 local commandBuffer = ""
+
+function registerConsoleCommand(name, handler)
+    consoleCommands[name] = handler
+end
+
+function processCommand()
+    local cmd
+    local args = {}
+
+    for word in commandBuffer:gmatch('[^%s"]+|"[^"]*"') do
+        word = word:gsub('^"(.*)"$', '%1')
+        if not cmd then
+            cmd = word
+        else
+            table.insert(args, word)
+        end
+    end
+
+    if consoleCommands[cmd] then
+        log.info("> %s", cmd)
+        consoleCommands[cmd](args)
+    else
+        log.warning("Unknown command: %s", cmd)
+    end
+
+    commandBuffer = ""
+end
+
 function handleConsoleInput(char)
     commandBuffer = commandBuffer .. char
 end
@@ -271,10 +302,8 @@ end
 registerEventListener("char", handleConsoleInput)
 
 function handleConsoleKeys(key)
-    if key == GLFW_KEY_ENTER then
-        -- executeCommand(commandBuffer)
-        log.info("Executed command: %s", commandBuffer)
-        commandBuffer = ""
+    if key == GLFW_KEY_ENTER and commandBuffer:len() > 0 then
+        processCommand()
     elseif key == GLFW_KEY_BACKSPACE then
         local len = commandBuffer:len()
         if len >= 1 then
@@ -285,10 +314,22 @@ end
 
 registerEventListener("key", handleConsoleKeys)
 
+--[[
+    console commands
+]]
+function echoCommand(args)
+    log.info(table.concat(args, " "))
+end
+registerConsoleCommand("echo", echoCommand)
+
+function exitCommand(args)
+    shouldRun = false
+end
+registerConsoleCommand("exit", exitCommand)
+
 --[[
     drawing functions
 ]]
--- to-do: dont apply offset based on log entries but on lines
 function drawLogs(x0, y0, x1, y1)
     local w = x1 - x0
     local h = y1 - y0
@@ -432,7 +473,7 @@ log.general("tutel host init")
 log.info("broadcasting SCAN")
 sendToAll("SCAN", { ["hostChannel"] = HOST_CHANNEL })
 
-while true do
+while shouldRun do
     updateScreen()
     pollEvents()
 end