here’s what i want to do - just not sure what the best approach would be programmatically speaking.
- make several groups of images - these are to be used as scrolling seamless backgrounds
- each group to have start and end designated backgrounds
- each group to have 1 or more middle backgounds that can be called in sequence or randomly
- at a given trigger, a seamless jump is made from current group to next group.
- end BG is called next and then start BG of next group - loop
so perhaps an array of images
var level1BG = [bg1_start, bg1_1, bg1_2, bg1_3, bg1_end]
var level2BG = [bg2_start, bg2_1, bg2_2, bg2_3, bg2_4, bg2_5, bg2_end]
and then switch on level (groups)
var level = 1
switch level {
case 1 : // use level1BG array for scrolls
case 2: // use level2BG array ...
...
}
this works as a infinitely scrolling background- called from update - but doesn’t allow changing sprites on the fly.
func backgroudScrollUpdate(){
bg1.position = CGPoint(x: bg1.position.x - scrollPerFrameAmount, y: bg1.position.y)
bg2.position = CGPoint(x: bg2.position.x - scrollPerFrameAmount, y: bg2.position.y)
if (bg1.position.x < -(bg1.size.width / 2)) {
bg1.position = CGPointMake(bg2.position.x + bg1.size.width, bg1.position.y)
}
if (bg2.position.x < -(bg2.size.width / 2)) {
bg2.position = CGPointMake(bg1.position.x + bg2.size.width, bg2.position.y)
}
}
could anyone point me in the right direction as to best way to approach this ?
many thanks !
edit: sorry, meant to say, I only work in Swift !