Corona Batching

build.settings

--
-- For more information on build.settings, see the Project Build Settings guide at:
-- https://docs.coronalabs.com/guide/distribution/buildSettings
--

settings =
{
	orientation =
	{
		-- Supported values for orientation:
		-- portrait, portraitUpsideDown, landscapeLeft, landscapeRight
		default = "portrait",
		supported = { "portrait", },
	}
}

config.lua

--
-- For more information on config.lua see the Project Configuration Guide at:
-- https://docs.coronalabs.com/guide/basics/configSettings
--

application =
{
	content =
	{
		width = 240,
		height = 320, 
		scale = "letterbox",
		fps = 60,
	},
}

gem.png

gem2.png

main.lua

local group, trans, mode = display.newGroup(), nil, "individual"
local fpsText = display.newText(display.fps, display.contentCenterX, display.contentHeight - 30, native.systemFont, 16)


local function toggleMode(  )
	group:removeSelf()
	group = display.newGroup()
	local numberOfImages = 10000
	if mode == "individual" then
		for i=1,numberOfImages do
			display.newImageRect(group, "gem.png", 30, 30 ):translate( math.random(display.contentWidth), math.random( display.contentHeight ) )
		end
		mode = "batched"
	else
		for i=1,numberOfImages/2 do
			display.newImageRect(group, "gem.png", 30, 30 ):translate( math.random(display.contentWidth), math.random( display.contentHeight ) )
			display.newImageRect(group, "gem2.png", 30, 30 ):translate( math.random(display.contentWidth), math.random( display.contentHeight ) )
		end
		mode = "individual"
	end
	transition.cancel( trans )
	trans = transition.blink( group, {time = 5000} )
	fpsText:toFront( )
end

toggleMode()


local startTime, accNum, maxCount = 0, 0, 100
Runtime:addEventListener("enterFrame", function( e )
	accNum = accNum + 1
	if accNum >= maxCount then
		fpsText.text = mode .. " fps: " .. math.round( 1000*maxCount/(e.time - startTime) )
		accNum, startTime = 0, e.time
	end
end)


fpsText:addEventListener("tap", toggleMode)