Flash Tutorial: Making 3D Rotation animation effect

This tutorial focuses on code writing, version as 3.0. As long as the production of a rotating 3D ball, the production of graphics components do not explain, please refer to the tutorial.

Include "Math2.as"

Picture container

var menu:sprite=new Sprite ();

Make an icon move

menu.x = 300;

MENU.Y = 200;

Registering event Listeners

Menu.addeventlistener (Event.enter_frame,movemenu);

This.addchild (menu);

The Intercept of the ellipse on the X and Y axes

var disx:number = 200;

var disy:number = 10;

Rotational speed

var speed:number = 0;

Initmenu (5);

function Initmenu (n:int) {

for (Var i:int i

var mc:movieclip = new Iconmenu ();

Zoom Out icon

Mc.scalex = Mc.scaley =. 5;

Menu.addchild (MC);

}

}

Event Listener Functions

function Movemenu (e:event): void {

Get Number of icons

var iconcount:int = Menu.numchildren;

Defining arrays

var deptharray:array = new Array ();

Split the 360 degrees.

var angle:number = 360/iconcount;

for (var z:int; z

Get icon based on depth

var mc:movieclip = Menu.getchildat (z);

Jump to different frames to display a different icon

Mc.gotoandstop (z+1);

Set the location of the icon

mc.x = cosd (speed + angle*z) * DISX;

MC.Y = SinD (speed + angle*z) * DISY;

SetProp (MC, "Alpha");

SetProp (MC, "ScaleX",. 2,.7);

SetProp (MC, "ScaleY",. 2,.7);

Save icon to array

DEPTHARRAY[Z] = MC;

}

To reset the depth of an icon

Arrange (Deptharray);

Speed + 2;

}

function Arrange (Deptharray:array): void {

Sort by y-coordinate

Deptharray.sorton ("Y", array.numeric);

var i:int = deptharray.length;

while (i--) {

Menu.setchildindex (Deptharray[i], i);

}

}

function SetProp (Mc:movieclip,prop:string,n1:number =. 5, N2:number = 1): void {

Mc[prop] = ((mc.y + 2 * disy)/disy-1)/2 * (N2-N1) + N1;

}

5, new. As document, save name: Math2.as (this document is for trigonometric function calculation)

Angle Turn radians

function Angletoradian (angle:number): number

{

Return angle* (math.pi/180);

}

radians Turn angle

function Radiantoangle (radian:number): number

{

Return radian* (180/MATH.PI);

}

To calculate a sine value

function SinD (angle:number): number

{

Return Math.sin (Angletoradian (angle));

}

To calculate the cosine value

function Cosd (angle:number): number

{

Return Math.Cos (Angletoradian (angle));

}

Calculate anyway Tangent

function atan2d (Y:number, X:number): number

{

Return Radiantoangle (math.atan2 (y, x));

}

Save the FLA document in the same directory as the math2.as document and test it.