CODEWITHSUNDEEP
actionscript-3flashflash-builder
sbatson5
sbatson5

Reputation: 648

Adding an eventListener to a object created by a function

I have looked around at a few different threads and can't seem to find anything that works for me. I am fairly new to ActionScript, so this may be obvious. For practice, I am trying to make a simple game. In the game you can chop down trees to add to your 'wood' resource. Here is the tree class:

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

    public class Tree extends Sprite
    {

    //Embed the gameObject image
    [Embed(source="../images/tree.png")]
    public var GameObjectImage:Class;
    public var gameObjectImage:DisplayObject = new GameObjectImage();
    public var gameObject:Sprite = new Sprite();

    public function Tree()
    {
        gameObject.addChild(gameObjectImage);
        this.addChild(gameObject);
    }
}
 }

Then, I create a function in the Main.as call 'createTree'

    public function createTree (xPos:int, yPos:int):void
    {
        var treeName:Tree = new Tree();
        treeName.x = xPos;
        treeName.y = yPos;
        treeName.addEventListener(MouseEvent.CLICK, chopWood);
        stage.addChild(treeName);
    }

And I have a function called 'chopWood' to remove the tree.

    public function chopWood(e:MouseEvent):void
    {
        wood++;
        stage.removeChild(e.relatedObject);
        updateResources();
    }

In the constructor, I add a tree.

        createTree(100,100);

And it does add the tree at x:100 y:100. But the Click event doesn't work. If I manually add the tree (i.e. not through a function) and manually add the even listener, it works. I figure this is some sort of encapsulation issue, but I am not sure how to resolve it. Creating trees needs to be done through a function because the play will need to add trees at some point.

How can I get the click event to work on all of the trees that I add to the stage?

Upvotes: 1

Views: 78

Answers (1)

Adam Harte
Adam Harte

Reputation: 10510

That seems like it should work. Does the chopWood method get called on click? Put a trace at the beginning of chopWood to test that.

If chopWood is being called, then I can see one strange thing. I am not too sure what e.relatedObject is. I would think you would want e.currentTarget as Tree. Also you can omit the "stage" in your stage.removeChild(e.relatedObject); line. It should just add it to as a child of your Main class.

Upvotes: 2

Related Questions