Setting up a moving background with Corona SDK

I just created a simple moving background written in lua for Corona SDK. The source is as follows:

	-- TODO: add your own image-file, I have used a file called bg1.png
	local scrollSpeed = 2
	-- Add First Background
	local bg1 = display.newImageRect("bg1.png", display.contentWidth, display.contentHeight)
	bg1.x = 0; bg1.y = display.contentHeight/2;
	local bg2 = display.newImageRect("bg1.png", display.contentWidth, display.contentHeight)
	bg2.x = display.contentWidth; bg2.y = display.contentHeight/2;
	-- Add Third Background
	local bg3 = display.newImageRect("bg1.png", display.contentWidth, display.contentHeight)
	bg3.x = display.contentWidth*2; bg3.y = display.contentHeight/2;
	local function moveBg(event)
	-- move backgrounds to the left by scrollSpeed, default is 8
	bg1.x = bg1.x - scrollSpeed
	bg2.x = bg2.x - scrollSpeed
	bg3.x = bg3.x - scrollSpeed
	-- Set up listeners so when backgrounds hits a certain point off the screen,
	-- move the background to the right off screen
	if (bg1.x ) < -display.contentWidth then
	bg1:translate( display.contentWidth*3, 0 )
	end
	if (bg2.x ) < -display.contentWidth then
	bg2:translate( display.contentWidth*3, 0 )
	end
	if (bg3.x ) < -display.contentWidth then
	bg3:translate( display.contentWidth*3, 0 )
	end
	end
	-- Create a runtime event to move backgrounds
	Runtime:addEventListener( "enterFrame", moveBg )

view raw movingbg.lua hosted with ❤ by GitHub

Use it as you wish!