Flash mouse click to scatter animation

1, new Flash document, 550*400, other default.

2, create a movie clip, select the Ellipse tool, no strokes, fill color radiation gradient, draw an ellipse (shape custom, I phase you will be better than I do), the right key library to set the link, class name ball.

3, return to Scene 1, the first layer of background (random), new as layer, in the as layer of the first frame input code:

The initial position of the ball

The initial position of the ball

var ballx:number = 275;

var bally:number = 400;

Speed of small ball movement

var speed:number = 5;

Stage.addeventlistener (Mouseevent.click,shoot);

function Shoot (e:mouseevent): void

{

for (var i:int = 1;i<9;i++)

{

Create a ball from the library

var ball:ball = new ball ();

Initialize the ball position

ball.x = BALLX;

BALL.Y = Bally;

Calculate the velocity of a ball according to trigonometric functions

BALL.SPDX = Cosd (i*-20) *speed;

Ball.spdy = SinD (i*-20) *speed;

Registering Enterframe Events

Ball.addeventlistener (Event.enter_frame,ballmove);

E.target.addchild (ball);

}

}

function Ballmove (e:event): void

{

Get a reference to the ball

var obj:movieclip = E.target;

Set the coordinates of the ball to achieve motion

obj.x + + OBJ.SPDX

OBJ.Y + + Obj.spdy

if (obj.y<0| | obj.x<0| | obj.x>550| | obj.y>400)

{

Remove Enterframe Event

Obj.removeeventlistener (Event.enter_frame,ballmove)

Remove from Display list

Stage.removechild (obj)

}

}

Angle conversion to radians

function Angletoradian (angle:number): number

{

Return angle* (math.pi/180);

}

function SinD (angle:number): number

{

Return Math.sin (Angletoradian (angle));

}

function Cosd (angle:number): number

{

Return Math.Cos (Angletoradian (angle));

}