Scratch

zammer990 wrote:

EDIT
mostly fixed scratch blocks

when gf clicked //player sprite
forever
   if (x position) < [245]
   broadcast [right v]
   if (x position) > [-245] // these values may need tuning
   broadcast [left v]
end

when gf clicked // put this in the stage
delete [all v] of [rightlist v]
delete [all v] of [leftlist v]
set (backgroundcounter) to 0
set (leftcounter) to 0
set (rightcounter) to 0
add (rightbackground1) to [rightlist v]
add (rightbackground2) to [rightlist v] // as many backgrounds to the right as you have
add (leftbackground1) to [leftlist v]
add (leftbackground2) to [leftlist v] // as many backgrounds to the left as you have

when I receive [right v]
change [backgroundcounter v] by [1]
change [rightcounter v] by [1]
change [leftcounter v] by [-1]
if (backgroundcounter) < [1]
switch to background item (leftcounter) of [leftlist v]
else
switch to background item (rightcounter) of [rightlist v]

when I receive [left v]
change [backgroundcounter v] by [-1]
change [rightcounter v] by [-1]
change [leftcounter v] by [1]
if (backgroundcounter) < [1]
switch to background item (leftcounter) of [leftlist v]
else
switch to background item (rightcounter) of [rightlist v]

I have NO idea if this'll work, I came up with it on the spot but it should work. Code order might need a bit of tweaking

scimonster wrote:

Wow zammer990, i don't think it needs to be that complicated!

if <<<(x position) > [240]> or <(x position) < [-240]>> or <<(y position) > [180]> or <(y position) < [-180]>>>
broadcast [change background v]
end

when i receive [change background v] //in the Stage
switch to background [other background v]

My way was a bit of a bizzare way of doing it I know 

Your way would only work assuming you only wanted to have it change backgrounds in one long line, for example if you went left right left right left you would just change to background 2,3,4,5,6

My code makes it multidirectional, going left then right would take you back to costume 1

^Again that would only work for one directional, or more specifically it'd just be an iterating sequence of backgrounds