Paint on monitor

local monitor = peripheral.wrap("right")
local width, height = monitor.getSize()
print(width, " ", height)

function draw(x, y)
    monitor.setCursorPos(x, y)
    monitor.write("#")
end

while redstone.getInput("left")
    local event, side, y = os.pullEvent("monitor_touch")
    draw(x, y)
end