Hello all,

I was told this is where I should come for help! I am learning how I can make fish randomly flow from the left side of the screen to the right.

I have figured out the basics... But now I am stuck!

The ActionScript so far is as follows:

var scale:Number = 45;
var numSegs:Number = 35;
var segLength:Number = 7;
var xthing:Number = 100;
var ything:Number;
var foo:Number = 0;
var bar:Number = 42;



//var clipList:Array;

//clipList = ["head1", "head2", "head3", "head4"]

//clipList[random(clipList.length)]);

// this section creates the head

var seg:MovieClip = attachMovie("head", "seg"+0, 201);

seg._xscale = seg._yscale = scale;

// creates the body
for (var i = 1; i<numSegs-1; i+=2) {

var seg:MovieClip = attachMovie("segment", "seg"+i, 200-i);

seg._xscale = seg._yscale = scale;

var seg:MovieClip = attachMovie("segment2", "seg"+(i+1), 200-(i-1));

seg._xscale = seg._yscale = scale;

}

// adds the tail

var seg:MovieClip = attachMovie("tail", "seg"+numSegs, 200-numSegs);

seg._xscale = seg._yscale = scale;

function onEnterFrame():Void {


// xthing, ything are variables that we will use to move the head

xthing+=10;

foo = foo+.1;

ything=Stage.height/2 + Math.sin(foo)*100;

// this call positions the head relative to xthing, ything

dragCascade(this.seg0, xthing, ything);

// this loop deals with the rest of the creature

for (var i = 0; i<numSegs; i++) {


var segA:MovieClip = this["seg"+i];


var segB:MovieClip = this["seg"+(i+1)];


dragCascade(segB, segA._x, segA._y);


}
}

// dragCascade just rotates a thing to point at some x, y coordinate
function dragCascade(seg:MovieClip, x:Number, y:Number):Void {

var dx:Number = x-seg._x;

var dy:Number = y-seg._y;

var angle:Number = Math.atan2(dy, dx);

seg._rotation = angle*180/Math.PI;

seg._x = x-Math.cos(angle)*segLength;

seg._y = y-Math.sin(angle)*segLength;
}

The Project file can be downloaded here: http://www.megaupload.com/?d=PJKVOXHU  

What I wanted to know was:

1) How can I make the fish reappear again after it has flowed off frame?

2) If possible, how can I make multiple fish flowing from left to right (And also have random flowing motions)?

3) Finally, how would I make the number of fish vary in depth (Make them bigger or smaller on the screen)?

ANY help on this would be much appreciated!

I've VERY new to programming, and I need all the advice I can get.

TIA,
Jack