feat: handle key events

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

@@ -128,12 +128,12 @@ declareCommandHandler("SCAN", handleScan,
     event handling
 ]]
 local eventListeners = {}
-local function registerEventListener(name, listener)
+function registerEventListener(name, listener)
     if not eventListeners[name] then eventListeners[name] = {} end
     table.insert(eventListeners[name], listener)
 end
 
-local function dispatchEvents(event, ...)
+function dispatchEvents(event, ...)
     log.info("dispatching event: %s", event)
 
     local eventTbl = eventListeners[event]
@@ -145,7 +145,7 @@ local function dispatchEvents(event, ...)
     end
 end
 
-local function handleMessages(side, channel, replyChannel, message, dist)
+function handleMessages(side, channel, replyChannel, message, dist)
     if channel ~= HOST_CHANNEL then return end
 
     -- msg validation
@@ -182,6 +182,11 @@ local function handleMessages(side, channel, replyChannel, message, dist)
 end
 registerEventListener("modem_message", handleMessages)
 
+function handleKey(key, isHeld)
+    log.info("key pressed (%d)", key)
+end
+registerEventListener("key", handleKey)
+
 --[[
     main
 ]]
@@ -203,15 +208,23 @@ function updateScreen()
         term.write(text)
     end
 
+    -- reset state and clear screen
     term.setBackgroundColor(colors.black)
     term.clear()
+    
+    -- -- title bar
     term.setCursorPos(1, 1)
 
     term.setBackgroundColor(colors.lightGray)
     term.setTextColour(colors.black)
+    
     term.clearLine()
     drawTextCentered("tutel host controller")
     
+    term.setBackgroundColor(colors.black)
+    term.setTextColour(colors.white)
+
+    -- logs
     local function drawLogs(startY, endY)
         for i = #log.buffer, 1, -1 do
             if i > endY then break end
@@ -219,7 +232,7 @@ function updateScreen()
             local entry = log.buffer[i]
             local format = logTypes[entry.type]
 
-            term.setCursorPos(0, startY + i)
+            term.setCursorPos(0, startY - 1 + i)
 
             local prevColourBg = term.getBackgroundColour()
             local prevColourFg = term.getTextColour()