Tutorial on Creating Following Objects.

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By Pratik. Velani

Published December 31, 1969

Beginner

Rating:

Lesson 3 : Following other objects .

Pratik. Velani

View all articles by Pratik. Velani

Create two movie clips ( refer to step 1 on page for creating movie clips ).

Change the instance name of first movie to ball_mc and instance of second movie to ball2_mc .
Click on the first movie clip and press F9 and insert the following code;

Code on first movie clip

onClipEvent(enterFrame){
    diffx = _root._xmouse - this._x ;
    diffy = _root._ymouse - this._y ;
    _x += diffx/5 ;
    _y += diffy/5 ;
}

Code on second movie clip

onClipEvent(enterFrame){

    diffx = _root.ball_mc._x - this._x ;

    diffy = _root.ball_mc._y - this._y ;

    _x += diffx/5 ;

    _y += diffy/5 ;

}

Explanation of second movie clip actionscript code :
    diffx = _root.ball_mc._x - this._x ;
    diffy = _root.ball_mc._y - this._y ;
       Assigns diffx & diffy , the diffrence of ball_mc's and ball2_mc's x & y coordinates respectively .

Final :
You can freely experiment and create ur own effects .....

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7 Responses to "Tutorial on Creating Following Objects."

an unknown user Rating: ratingfull

said this on 19 Sep 2007 1:04:54 PM CST

Trailing portion does not work in Flash 8

(Reply to this comment)

emilio Rating: ratingfull

said this on 04 May 2009 12:27:12 PM CST

marvellous, just what i wanted...

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Someone watching you from above Rating: ratingfull

said this on 31 Jul 2009 12:03:16 PM CST

great! I need this :D thanks alot

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anonymous Rating: ratingfull

said this on 03 Feb 2010 7:08:26 PM CST

i have tried this in flash actionscript 3.0 but i keep on getting 1087: Syntax error: extra characters found after end of program.. can anyone help me? or refer to me an actionscript that produces the same following effect but for actionsript 3.0?

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Pratik. Velani Rating: ratingfull

(

Author/Admin)

said this on 04 Feb 2010 12:47:28 AM CST

The above tutorial is written in actionscript 2.0, Use this code for actionscript 3.0

// Change this for easing
var easingDif = 10;

// MOUSE FOLLOWING BALL
var ball = new MovieClip ();
ball.graphics.lineStyle ( 6, 0x0099FF, 1, true );
ball.graphics.beginFill ( 0xFF0000 );
ball.graphics.drawCircle( 0, 0, 20 );
ball.graphics.endFill ();
addChild( ball );

// DRAWING BALL PATH
var drawCanvas = new MovieClip ();
drawCanvas.graphics.lineStyle( 4, 0x0099FF, 1, true );
drawCanvas.graphics.moveTo ( ball.x, ball.y );
addChild( drawCanvas );

ball.addEventListener ( Event.ENTER_FRAME, update );
function update ( event:Event ):void
{
var difX = this.mouseX - ball.x;
var difY = this.mouseY - ball.y;

ball.x += difX / easingDif;
ball.y += difY / easingDif;

drawCanvas.graphics.lineTo ( ball.x, ball.y );
}

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Abyut Rating: ratingfull

said this on 22 Apr 2010 9:10:29 PM CST

good

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David Rating: ratingfull

said this on 06 Jun 2010 1:11:50 AM CST

This is a GREAT tutorial with everything nicely explained. And thanks a lot for the AS3 code as I started programming using it.

I have one question though, how did you do the whole clearing the lines and then starting to draw them after the click in "Final" swf?

I was able to clean up the lines using a function with a mouse event but I could not get them to start being drawn after cleaning up.

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Lesson 3 : Following other objects .

Pratik. Velani

Spread The Word

7 Responses to "Tutorial on Creating Following Objects."

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