v1 parallax scrolling gradual increase

Getting Started Newbie Questions
#1

I need my background to gradually get fast/increase in speed AND I’m using graphics v1!!! not v2. Heres some of my code!

#2

Add a line in the scroll background that changes the speed…

something like:

background1.speed = background1.speed +0.000001

Or you could create another function that changes the speed and call it every so often. 

#3

thank you so much you have no idea! do you know how to make random images appear and remove them selves of the screen? I am implementing lasers for obstacles in my parallax scrolling and I need the images to randomly spawn 480 pixels to the right before they appear on the screen so it is not the same thing every 2 screens. I then need them to remove so they do not scroll back onto the screen so I just want a fresh set of images every 480 pixels. thanks!

#4

Add a line in the scroll background that changes the speed…

something like:

background1.speed = background1.speed +0.000001

Or you could create another function that changes the speed and call it every so often. 

#5

thank you so much you have no idea! do you know how to make random images appear and remove them selves of the screen? I am implementing lasers for obstacles in my parallax scrolling and I need the images to randomly spawn 480 pixels to the right before they appear on the screen so it is not the same thing every 2 screens. I then need them to remove so they do not scroll back onto the screen so I just want a fresh set of images every 480 pixels. thanks!