Problem - Simulation Speed slows down quickly (timeinterval)

[strombose]

Hi all,
the attached code works on an empty flash8-stage (size about 1024*768) (just put the code in the first frame and run). You might notice the problem: The simulation speed is slowing down quite quickly. Has anybody a solution or knows what might be the cause? I've got no idea what to do!
Thanks very much in advance!

var startx:Number = 100;
var starty:Number = random(100)+200;
moveTo(startx, starty);
var positionX:Array = new Array(75);
var positionY:Array = new Array(75);
positionX[0]=startx;
positionY[0]=starty;
 
for (ii:Number=1; ii<76; ii++){
    moveTo(positionX[ii-1], positionY[ii-1]);
    positionX[ii] = startx+(ii*10);
    positionY[ii] = positionY[ii-1] + random(20)-10; 
    lineStyle (5, 0x888888, 100);
    lineTo(positionX[ii], positionY[ii]);
}
 
// all 100ms new part of line
timeint = setInterval(this, "drawline", 100);
 
var pass : Number = 1;
var posx : Number = 1;
function drawline() {
    posx=1;
    for (i:Number=1; i<76; i++) {
        moveTo(positionX[posx-1], positionY[i-1]);
        lineStyle (5, 0xFFFFFF, 100);
        lineTo(positionX[posx], positionY[i]);
        posx++;
    }
    for (arraypos:Number=1; arraypos<76; arraypos++) {
        positionY[arraypos-1] = positionY[arraypos];
    }
    positionY[75]=positionY[74] + random(20)-10;
    pass++;
    posx=1;
    for (i:Number=1; i<76; i++) {
        moveTo(positionX[posx-1], positionY[i-1]);
        lineStyle (5, 0x888888, 100);
        lineTo(positionX[posx], positionY[i]);
        posx++;
    }
 
    //quit timeinterval after 75 loops
    pass>=75?clearInterval(timeint):0;
    trace(pass);
}
 

[xNephilimx]

Hi, strombose.
The solution is very simple, you were not clearing the stage when redrawing the lines and that was eating too much memory. You just need to add clear(); in the fisrt line of your drawline function.

function drawline() {
    clear();
//[the rest of the function here]
}
 

The clear method literally clears the stage of any previous drawings made by actionscript, making also release memory.

Best regards,
The_Nephilim

Hi all,
the attached code works on an empty flash8-stage (size about 1024*768) (just put the code in the first frame and run). You might notice the problem: The simulation speed is slowing down quite quickly. Has anybody a solution or knows what might be the cause? I've got no idea what to do!
Thanks very much in advance!

var startx:Number = 100;
var starty:Number = random(100)+200;
moveTo(startx, starty);
var positionX:Array = new Array(75);
var positionY:Array = new Array(75);
positionX[0]=startx;
positionY[0]=starty;
 
for (ii:Number=1; ii<76; ii++){
    moveTo(positionX[ii-1], positionY[ii-1]);
    positionX[ii] = startx+(ii*10);
    positionY[ii] = positionY[ii-1] + random(20)-10; 
    lineStyle (5, 0x888888, 100);
    lineTo(positionX[ii], positionY[ii]);
}
 
// all 100ms new part of line
timeint = setInterval(this, "drawline", 100);
 
var pass : Number = 1;
var posx : Number = 1;
function drawline() {
    posx=1;
    for (i:Number=1; i<76; i++) {
        moveTo(positionX[posx-1], positionY[i-1]);
        lineStyle (5, 0xFFFFFF, 100);
        lineTo(positionX[posx], positionY[i]);
        posx++;
    }
    for (arraypos:Number=1; arraypos<76; arraypos++) {
        positionY[arraypos-1] = positionY[arraypos];
    }
    positionY[75]=positionY[74] + random(20)-10;
    pass++;
    posx=1;
    for (i:Number=1; i<76; i++) {
        moveTo(positionX[posx-1], positionY[i-1]);
        lineStyle (5, 0x888888, 100);
        lineTo(positionX[posx], positionY[i]);
        posx++;
    }
 
    //quit timeinterval after 75 loops
    pass>=75?clearInterval(timeint):0;
    trace(pass);
}
 

[strombose]

Thanks a lot for your help! It works.

[xNephilimx]

Thanks a lot for your help! It works.

You're welcome.
Good luck!

Best regards,
The_Nephilim