as3 - Moving objects through different positions - actionscript-3

Question

I am coding a simple video game in adobe animate with as3. I am trying to move my objects through a swipe action through 3 different positions e.g:
Swipe 1: mc1 moves to 1st position (x = 600; y = 300).
Swipe 2: mc2 moves to 1st position (x = 600; y = 300) and mc1 move to 2nd position (x = 300, y = 300).
Swipe 3: mc3 moves to 1st position (x = 600; y = 300) and mc2 move to 2nd position (x = 300, y = 300) and mc1 moved to 3rd position ((x = -100, y = -100).
Swipe 4: mc4 moves to 1st position (x = 600; y = 300) and mc3 move to 2nd position (x = 300, y = 300) and mc2 moved to 3rd position ((x = -100, y = -100)...and so on.
I would also like to be able to return to the start of the loop (Swipe 1) through a click to repeat the whole process at any point.
I am using arrays for my objects e.g.
var A:Array =
[
mc1,
mc2,
mc3,...mc50
];
I have tried this:
var anObject:DisplayObject;
//move object through swipe action
Multitouch.inputMode = MultitouchInputMode.GESTURE;
stage.addEventListener (TransformGestureEvent.GESTURE_SWIPE, fl_SwipeHandler_1);
function fl_SwipeHandler_1(event:TransformGestureEvent):void
{
switch(event.offsetX)
{
case -1:
{for each (anObject in A) {
for (var n:int = 0; n < A.length; n++){
A[n].x = 600 // how do I get this right?
A[n].y = 300
A[n-1].x = 300
A[n-1].y = 300
A[n-2].x = -100
A[n-2].y = -100
}}
} break;
}
}
//return to beginning of loop (Swipe 1)
mc_return_to_A0.addEventListener(MouseEvent.CLICK, return_to_A0);
function return_to_A0 (event:MouseEvent):void
{n==0} //how do I get this right? ```
Any help would be much appreciated!
Thanks

Answer 1

I cannot help you with gestures for I never worked with them directly, but positioning is logically... not difficult.
You have an Array of objects and an Array of positions. After the 1-st swipe you want only the first object go to the first given position:
Positions: ... (6) (5) (4) (3) (2) (1)
Objects: (1) (2) (3) (4) (5) (6) ...
After the 2-nd swipe:
Positions: ... (6) (5) (4) (3) (2) (1)
Objects: (1) (2) (3) (4) (5) (6) ...
After the 5-th swipe:
Positions: ... (6) (5) (4) (3) (2) (1)
Objects: (1) (2) (3) (4) (5) (6) ...
So, the script should go as the following (sort of):
// A list of your objects here.
var A:Array = [mc1, mc2, ... , mc50];
// A list of designated points here. I kinda advise to design
// these on stage with empty MovieClips appropriately named.
// This way you will have a visual representation of these
// positions, not just lots of numbers on your code.
var P:Array = [p1, p2, ... , p50];
// You need to keep a number of successful swipes, it is,
// literally, the number of objects you need to re-position.
var N:int = 0;
// So, after you successfully register a new swipe,
// you call this method to apply the re-positioning.
function arrangeThings():void
{
// So we take first N objects, one by one.
for (var i:int = 0; i < N; i++)
{
// Figure the index of the P for the current designated position.
var anIndex:int = N - i - 1;
// Get the position object itself.
var aPos:DisplayObject = P[anIndex];
// Get the object to position.
var anObject:DisplayObject = A[i];
// Assume the designated position.
anObject.x = aPos.x;
anObject.y = aPos.y;
}
}
Then, I've already explained you how to reset things in the comment here. Plainly, you just store the initial coordinates at the start and then assign them back upon need.