added close button for mouse and monitor usage

rhythmblock.lua

@@ -45,22 +45,27 @@ function playDisc()
         	disk.playAudio(drive)
 		renderStopButton()
 		renderEjectButton()
+		renderCloseButton()
 		playing = true
 		status = disk.getAudioTitle(drive)
 	elseif disk.isPresent(drive) then -- If there's a floppy disk for example, Rhythmbox won't play it.
         	status = invalidFormatStatus
 		renderPlayButton()
 		renderEjectButton()
+		renderCloseButton()
 	else -- If none of these checks are passed then it just means there's no disc in the drive.
         	status = noDiscStatus
 		renderPlayButton()
 		renderEjectButton()
+		renderCloseButton()
 	end
 end
 
 function ejectDisc() -- Ejects the disc! How cool is that?
+	term.clear()
 	renderPlayButton()
 	renderEjectButton()
+	renderCloseButton()
 	if playing == true then
 		stopDisc()
 		disk.eject()
@@ -78,6 +83,7 @@ function stopDisc() -- Stops the music
 	term.clear()
 	renderPlayButton()
         renderEjectButton()
+	renderCloseButton()
 end
 
 function renderPlayButton() -- Renders the Play button
@@ -100,17 +106,25 @@ function renderEjectButton() -- Renders the Eject button
 	term.write(ejectText)
 end
 
-function statusRender(s) -- Resets the status position
+function statusRender(s) -- Renders the status bar 
 	term.setCursorPos(1, 1)
 	term.setTextColor(textColor)
 	term.setBackgroundColor(backgroundColor)
 	term.write(s)
 end
 
+function renderCloseButton() -- Renders the X button
+	term.setCurorPos(width, 1)
+	term.setTextColor(textColor)
+        term.setBackgroundColor(backgroundColor)
+	term.write("x")
+end
+
 term.clear()
 term.setBackgroundColor(backgroundColor) -- Setting the background color
 renderPlayButton() -- Rendering the play button
 renderEjectButton() -- Rendering the eject button
+renderCloseButton() -- Rendering the close button
 status = defaultStatus -- Setting the value to the default
 
 while true do
@@ -126,8 +140,11 @@ while true do
                         playDisc()
                 end
         elseif eventData[2] == 1 and eventData[3] >= centerWidth - 2 and eventData[4] >= centerHeight + 4 and eventData[3] <= centerWidth + 2 and eventData[4] <= centerHeight + 4 then
-		term.clear()
                 ejectDisc()
+	elseif eventData[2] == 1 and eventData[3] == width and eventData[4] == 1 then
+		term.clear()
+                term.setCursorPos(1, 1)
+                return true	
 	end
     elseif event == "key_up" then
 	local name = keys.getName(eventData[2]) or "unknown key"