Examples Flash Animation using swishmax 1 Spots qui s'allument successivement

Spots which go on successively

The goal is to show how to get a 3D moving effect over an elliptical path, using a script.
We 'll use DuplicateSprite.

We gonna describe the different stages right away.

Creating Objects

1 - Set up movie size 640x480 (background color #000066).
Frame Rate : 50.
Be sure in Export, Mask off-stage objects is toggled.

2 - Create a circle : X=0 Y=0 W=1 H=1, anchor point : Center, white background and line.

3 - Convert to Sprite. Name it dot, Target toggled.

Script

In Outline, select Scene_1. Enter the following script :

onLoad()
{   
    H = int(_root._height);   // hauteur scene - height
    W = int(_root._width);   // largeur scène  - width
    a = 200;   // demi grand axe - half 1st axis
    b = 100;    // demi petit axe - half 2nd axis
    n = 25;   // nombre de sprites - number of sprites
    // 30° angle inclinaison grand axe ellipse - angle inclination 1st axis
    alfa = Math.PI / 6;  
    // calcule la valeur de cos et sin une fois pour toutes
    // work out cos and sin  only once
    C_alfa = Math.cos(alfa);
    S_alfa = Math.sin(alfa);
    
    alpha_init = 50;   // transparence - transparency
    indice = 1;
    
    // création des sprites - creating sprites
    T = 2 * Math.PI;   // période -  period
   dt = T / n;     // incrément 2PI/n - increment
   R = 1;   // rayon initial - initial radius
   for (i=1; i < n; i++)  
    {
        angle = i*dt -Math.PI/2;
        duplicateSprite(dot, "dot"+i, i);  	
        /*-------------------------------------------------
        Dans la scène  (0,0) est le coin supérieur gauche
        et les y vont vers le bas => il faut donc passer 
        des coordonnées mathématiques relatives x(i) , y(i)
        aux coordonnées absolues de la scène.

We need absolute screen coordinates
        -------------------------------------------------*/
        ("dot"+i)._X = (W/2) + x( x0(angle) , y0(angle));     	
        ("dot"+i)._Y = (H/2) - y( x0(angle) , y0(angle));     
        ("dot"+i)._alpha = alpha_init;
        if ( angle > (Math.PI /2) )  R-=2; else R+=2;
        // rayons différents pour effet 3D - different radius
        ("dot"+i)._xscale=("dot"+i)._yscale= R*100; 	
    } 
    dot._visible = false;
}
/*-------------------------------------------------------------------
   point d'une ellipse rapportée à un repère cartésien classique.
   usual coordinates of an ellipse.
-------------------------------------------------------------------*/
function x0( t )
{  // compense les erreurs d'arrondis - make up for rounded errors
    if ( t ==(Math.PI / 2) ) return 0;  
    return ( a * Math.cos(t) );
}
function y0( t )
{
    if (t == 0) return 0;
    return ( b * Math.sin(t) );
}
/*-----------------------------------
    ellipse inclinée d'un angle alfa
    ellipse inclined at alfa
-----------------------------------*/
function x( xold , yold )
{
    return ( xold*C_alfa + yold*S_alfa );
}
function y( xold , yold )
{
    return ( yold*C_alfa - xold*S_alfa );
}
/*-------------------------------------------------
	5 spots successifs ont des alpha différents
	5 successive spots got different alpha
-------------------------------------------------*/
onFrame (1,afterPlacedObjectEvents)
{
   increment=0;
   while (increment < 5)
   {
      lequel =  indice+increment;
      if (lequel<= n)
           ("dot"+lequel)._alpha = alpha_init + 10*(increment+1); 
      increment++;
   }
}
/*--------------------------------------------------------------
   on change le alpha en frame 5 mais vous pouvez en changer.
   we modify alpha value in frame 5, but you could take another one.
---------------------------------------------------------------*/
onFrame (5,afterPlacedObjectEvents)
{
   ("dot"+indice)._alpha-=10;
   if (("dot"+indice)._alpha < alpha_init)  
   		("dot"+indice)._alpha = alpha_init;
   indice++;
   if (indice > n) indice = 1;
   gotoSceneAndPlay("<current scene>",1);
}

You could adapt speed effect changing movie fps or/and changing the frame to modify transparency.
(Here, I took frame 5)

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Spots which go on successively