Continuously Scrolling Background

[Mighty Tuna]

Hi everyone!
This is my first post as a member. Please inform me if I break any rules. (Just in case...)

How could I make a background scroll to the right continuously, with the same image repeating over and over. I also want the movement to start automatically when the game runs.

I am not creating a game right now, but I just want to know how to do this for future reference.

Here is my code. (Not so much code because I am just focusing on the background)

Code: Select all

function love.load()
	bg = love.graphics.newImage("background.png")
end

function love.update(dt)

end

function love.draw()
    love.graphics.setColor(255,255,255,255)
    love.graphics.draw(bg)
end

Thanks for you help.

[master both]

I made this demo by cutting an image in two and resetting the position everytime one of them reach the end.
I know there might be a better solution, but this is what i could think of

[Mighty Tuna]

Could you point out the part of the script that would make it scroll in the other direction? Sorry if I didn't make it clear.

[substitute541]

There are many ways to do it, but having 2 background images scrolling is the simplest way. The code may look like this (assuming that the background image is the same size as the window, and that you are changing the X coordinate only):

Code: Select all

if bg1.x + bg.width <= 0 then
    local dx = bg1.x + bg.width
    bg1.x = love.graphics.getWidth() - dx
elseif bg1.x >= love.graphics.getWidth() then
    local dx = love.graphics.getWidth() - bg1.x
    bg1.x = -dx
end

Code is untested yet. Do the same thing for bg2 (note that, bg.width is just the width of both backgrounds).

[Mighty Tuna]

Thanks for your help.
This is exactly what I needed.

[Username]

Hi everyone!
This is my first post as a member. Please inform me if I break any rules. (Just in case...)

I inform you that you broke a basic rule on your first post: search the forums before posting a question, because just 10 threads below this, you can find this:

viewtopic.php?f=4&t=32969

[Robin]

Welcome Mighty Tuna!

If you're worried about breaking the rules here, might I suggest reading the forum rules if you haven't already?

[Mighty Tuna]

Hi everyone!
This is my first post as a member. Please inform me if I break any rules. (Just in case...)

I inform you that you broke a basic rule on your first post: search the forums before posting a question, because just 10 threads below this, you can find this:

viewtopic.php?f=4&t=32969

I saw that before but I am not using a tiled background. Just 1 or 2 pictures.

[Username]

Hi everyone!
This is my first post as a member. Please inform me if I break any rules. (Just in case...)

I inform you that you broke a basic rule on your first post: search the forums before posting a question, because just 10 threads below this, you can find this:

viewtopic.php?f=4&t=32969

I saw that before but I am not using a tiled background. Just 1 or 2 pictures.

Please, read my last post in that thread because that is what you are asking for.