This is an update to the example we did in class about adding MovieClips from the library and removing them from the stage. After the class I realized there was an easier way to write this that acutally used less AS3. The AS3 used for this example is below it along with the source files for download.
//makesure you have a MovieClip in the Library exported for ActionScript with the class: Star //create a new variable and datatype it as a Star (the MovieClip you have in the library) var newStar:Star; //add a mouseDown listener to the stage that will call the function addRemoveStar stage.addEventListener(MouseEvent.MOUSE_DOWN, addRemoveStar); //BestPractice (no stage / weak reference): this.addEventListener(MouseEvent.MOUSE_DOWN, addRemoveStar, false, 0, true); //write the function addRemoveStar function addRemoveStar(e:MouseEvent) //BestPractice(return void): function addRemoveStar(e:MouseEvent):void { //create a variable named objectClicked and store the target of the MouseDown Event //(it will either be the stage or something that has been added to the stage like a newStar) var objectClicked = e.target; //create an if statement to find out if the target of the mouseDown event was the stage or a newStar if(objectClicked == stage) { //when the target of the mouseDown event is the stage, create a new instance of the Star called newStar newStar= new Star; //position the newStar at the x and y coordinates of the mouse newStar.x = mouseX; newStar.y = mouseY; //add the newStar to the stage stage.addChild(newStar); } //when the target of the mouseDown event is not the stage it means it is a newStar else { //remove the newStar that was clicked (the target of the mouseDown event) stage.removeChild(objectClicked); } }
Download starClick Source Files
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Download Size: 6.3 kB
Download Updated: March 21, 2009
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