i got a problem in addEventListener

[kittrash]

here is my code, i draw two ciricle on the stage. Each circle can controlled by another circle on the stage. That's mean if i click circle1, then some action will be taken on circle 2. but the following code doesnt work, how can i control any other object using addEventListener ??

package {
import flash.display.Sprite;
import flash.events.MouseEvent;

public class testing extends Sprtie {
public function testing() {

var cir1:Sprite = new Sprite();
cir1.graphics.beginFill(0x000000);
cir1.graphics.drawCircle(0,0,100);
cir1.graphics.endFill();
addChild(cir1);
var cir2:Sprite = new Sprite();
cir2.graphics.beginFill(0x000000);
cir2.graphics.drawCircle(200,200,100);
cir2.graphics.endFill();
addChild(cir2);

cir1.addEventListener(MouseEvent.MOUSE_DOWN, dnHandler);
}
private function dnHandler(event:MouseEvent):void {
cir2.x = 500;
}
}
}

[kittrash]

i cannot pass a variable to cir2 by using cir1.addEventListener stated above . why ?? any mistake ?

[McGuffin]

It's a scoping issue. the cir2 variable is only defined in the testing() function and is not available elsewhere. You need this:



public function testing() {
var cir1:Sprite = new Sprite();
cir1.graphics.beginFill(0x000000);
cir1.graphics.drawCircle(0,0,100);
cir1.graphics.endFill();

cir1.name = "cir1";

addChild(cir1);
var cir2:Sprite = new Sprite();
cir2.graphics.beginFill(0x000000);
cir2.graphics.drawCircle(200,200,100);
cir2.graphics.endFill();

cir2.name = "cir2";

addChild(cir2);

cir1.addEventListener(MouseEvent.MOUSE_DOWN, dnHandler);
}
private function dnHandler(event:MouseEvent):void {
var cir2:Sprite = getChildByName("cir2");
cir2.x = 500;
}


You could do it other ways, but that'll be the ticket.

[kittrash]

Thanks, McGuffin.
But i face another problem after executing the following code

package {
import flash.display.Sprite;
import flash.events.MouseEvent;

public class kit extends Sprite {
public function kit() {
var cir1:Sprite = new Sprite();
cir1.graphics.beginFill(0x000000);
cir1.graphics.drawCircle(0,0,100);
cir1.graphics.endFill();
cir1.name = "cir1";

addChild(cir1);

var cir2:Sprite = new Sprite();
cir2.graphics.beginFill(0x000000);
cir2.graphics.drawCircle(200,200,100);
cir2.graphics.endFill();
cir2.name = "cir2";

addChild(cir2);

cir1.addEventListener(MouseEvent.MOUSE_DOWN, dnHandler);
}
private function dnHandler(event:MouseEvent):void {
var cir2:Sprite = getChildByName("cir2");
cir2.x = 500;
}
}
}

the error msg is about:
1118: Implicit coercion of a value with static type flash.display:DisplayObject to a possibly unrelated type flash.display:Sprite.

[soulwire]

Try declaring cir1 and cir2 as sprites in your class constructor.

or

Humour Flash and change
var cir2:Sprite = getChildByName("cir2");
to
var cir2:DisplayObject = getChildByName("cir2");