JSON name adder

function printUsage()
	print("Usage: " .. shell.getRunningProgram() .. " <player> <join:leave>")
end

tArgs = { ... }
if #tArgs == 2 then
	if tArgs[2] == "join" then
        	commands.exec('tellraw @p ["",{"text":"' ..tArgs[1] .. ' joined the game","color":"yellow"}]')
	elseif tArgs[2] == "leave" then
		commands.exec('tellraw @p ["",{"text":"' ..tArgs[1] .. ' left the game","color":"yellow"}]')
	else
		printUsage()
	end
else
	printUsage()
end