I'm making a game with ActionScript 3, but have been failing at doing a lot of things.
Recently, I moved on to trying to create it by packages, but haven't had much luck with that due to a lot of new things popping in front of me.

I did this based on a tutorial, but it didn't quite explain the things clear enough for me.

Here is how my GameEngine.as looks like and I will explain the issues below it.

package  {
	import flash.display.MovieClip;
	import flash.display.Stage;
	public class GameEngine extends MovieClip {

		public function GameEngine() {
			var ourChar:character = new character(stage);
			ourChar.x = stage.stageWidth / 2;
			ourChar.y = stage.stageHeight / 2;

First of all, I am having issues understanding what the var ourChar:character = new character(stage); means.
I realize it creates a variable named ourChar, but everything after that is unknown to me. Also how do I trace for example, the characters x position with this? As when I try character.x or ourChar.x I just end up having an error.
/Flashgame/GameEngine.as, Line 15	1119: Access of possibly undefined property x through a reference with static type Class.