Inspiring

Question

problem creating class to change scene

Forum|Forum|4 years ago
March 25, 2021
1 reply
368 views

Hello!. I need a little help (I think).

This code works great in the action panel:

selectArrow.addEventListener(MouseEvent.CLICK, fl_ClickToGoToScene_29);

function fl_ClickToGoToScene_29(event:MouseEvent):void{
	if (option_440.currentLabel == "uno" && dminorItalian.currentLabel == "uno"){
		MovieClip(this.root).gotoAndPlay(1, "Standars_All");
		}
	else if (option_440.currentLabel == "uno" && bminorItalian.currentLabel == "dos"){
		MovieClip(this.root).gotoAndPlay(2, "Standars_All");
		}
	else if (option_415.currentLabel == "dos" && dminorItalian.currentLabel == "uno"){
		MovieClip(this.root).gotoAndPlay(3, "Standars_All");
		}
	else if (option_415.currentLabel == "dos" && bminorItalian.currentLabel == "dos"){
		MovieClip(this.root).gotoAndPlay(4, "Standars_All");
		}
	else{
		MovieClip(this.root).gotoAndPlay(1, "Standars_All");
	}
}

basically it is an MC (selectArrow) that takes the film to a different scene and, depending on which frames the other four MCs are in, it goes to one frame or another of the "Standars_all" scene.

when I create a class for this code it doesn't work.

package componentes {
	import flash.display.MovieClip;
	import flash.events.MouseEvent;
	
	public class Controladores {
		
		var _415:MovieClip;
		var highKey:MovieClip;
		var lowKey:MovieClip;
		var rightArrow:MovieClip;
		
		public function Controladores(_440:MovieClip, _415:MovieClip, highKey:MovieClip, lowKey:MovieClip, rightArrow:MovieClip) 
			{
			var _440:MovieClip = new MovieClip();
			_415 = new MovieClip();
			highKey = new MovieClip();
			lowKey = new MovieClip();
			rightArrow = new MovieClip();
				
			rightArrow.addEventListener(MouseEvent.CLICK, fl_ClickToGoToScene_29);
				
			function fl_ClickToGoToScene_29(event:MouseEvent):void{
				if (_440.currentLabel == "uno" && highKey.currentLabel == "uno"){
					MovieClip(this.root).gotoAndPlay(1, "Standars_All");
					}
				else if (_440.currentLabel == "uno" && lowKey.currentLabel == "dos"){
					MovieClip(this.root).gotoAndPlay(2, "Standars_All");
					}
				else if (_415.currentLabel == "dos" && highKey.currentLabel == "uno"){
					MovieClip(this.root).gotoAndPlay(3, "Standars_All");
					}
				else if (_415.currentLabel == "dos" && lowKey.currentLabel == "dos"){
					MovieClip(this.root).gotoAndPlay(4, "Standars_All");
					}
				else{
					MovieClip(this.root).gotoAndPlay(1, "Standars_All");
					}
				}
					

			}

	}
	
}

the MC "selectArrow" does nothing .... but does not give an error ...

Thank you very much for the help

This topic has been closed for replies.

Community Expert

Community Expert

i don't know how your passing anything on stage to Controladores (which is key), but even if you do that correctly, you're causing a problem by creating a new MoviecClip overwriting everything passed.

you probably shouldn't bother with a class file unless you either understand the basics or have some reason to think there will be a benefit.

if you're trying to learn about using class files, you should start with either a document class or a class for one of your movieclips (eg, rightArrow much have a class RightArrow).

joaquin5EDDAuthor

Inspiring

Thanks for the reply. This is what I passed to the stage (action panel):

var italianControls: Controllers = new Controllers (option_440, option_415, dminorItalian, bminorItalian, selectArrow);

The advantage of putting this code in a class is that it allows me to save lines of code since I have to use this code in several frames changing the parameters.

As for making a class of the symbols of the stage, I have done it with several, but when I make a class associated with objects, it does not allow me to reference other objects of the stage (surely it is my fault), so it does not help me to do a class associated with an object since this class involves many objects on the stage

I have been doing more testing and this is the error I am getting now. It's like it can't find the path, or it can't find the movieclip variables. When I declare them it does not give an error but it does nothing (previous code), but when I do not declare them (the code I put below) it gives error # 1009. I put the code of the class:

package componentes {
	import flash.display.MovieClip;
	import flash.events.MouseEvent;
	
	public class Controladores extends MovieClip{
		
		public function Controladores(_440:MovieClip, _415:MovieClip, highKey:MovieClip, lowKey:MovieClip,
		rightArrow:MovieClip, _1:uint, _2:uint, _3:uint, _4:uint) 
			{

			rightArrow.addEventListener(MouseEvent.CLICK, fl_ClickToGoToScene_29);
				
			function fl_ClickToGoToScene_29(event:MouseEvent):void{
				if (_440.currentLabel == "uno" && highKey.currentLabel == "uno"){
					MovieClip(this.root).gotoAndStop(_1, "Standars_All");
					}
				else if (_440.currentLabel == "uno" && lowKey.currentLabel == "dos"){
					MovieClip(this.root).gotoAndPlay(_2, "Standars_All");
					}
				else if (_415.currentLabel == "dos" && highKey.currentLabel == "uno"){
					MovieClip(this.root).gotoAndPlay(_3, "Standars_All");
					}
				else if (_415.currentLabel == "dos" && lowKey.currentLabel == "dos"){
					MovieClip(this.root).gotoAndPlay(_4, "Standars_All");
					}
				else{
					MovieClip(this.root).gotoAndPlay(_1, "Standars_All");
					}
				}

			}

	}
	
}

error:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Function/componentes:Controladores/$construct/componentes:fl_ClickToGoToScene_29()[C:\Users\josqu\Desktop\BI\app BI\componentes\Controladores.as:15]

this is line 15 of the class

MovieClip(this.root).gotoAndStop(_1, "Standars_All");

this is the line I put en panel actions in the frame that interests me:

var italianControls:Controladores = new Controladores (option_440, option_415, dminorItalian, bminorItalian, selectArrow, 1, 2, 3, 4);

many thanks for the help!