/////Mouse in Stage check /////////
//// author：chenlangeer
//// msn：chenlangeer@hotmail.com
////email：chenlangeer@eastday.com
////////////////////////////////////
import flash.geom.*;
class MouseCheck {
	private static var rect:Rectangle;
	private static var out:Boolean;
	private static var m_pos:Point;
	private static var old_m_pos:Point;
	private static var out_val:Number;
	private static var _val:Number;
	private static var out_func:Function;
	private static var in_func:Function;
	private static var frame:Number;
	private static var border:Number;
	private static function onResize() {
		rect = new Rectangle(border, border, Stage.width-border*2, Stage.height-border*2);
		//trace(rect);
	}
	public static function init(_frame:Number, out_f:Function, in_f:Function) {
		Stage.scaleMode = "noScale";
		Stage.align = "TL";
		Stage.addListener(MouseCheck);
		border = 1;
		/////////
		rect = new Rectangle(border, border, Stage.width-border*2, Stage.height-border*2);
		m_pos = new Point(_root._xmouse, _root._ymouse);
		frame = 1000/_frame;
		out_func = out_f;
		in_func = in_f;
		/////////
		if (!rect.containsPoint(m_pos)) {
			out_func();
			out = true;
		} else {
			in_func();
			out = false;
		}
	}
	private static function cheekOut() {
		old_m_pos = m_pos.clone();
		m_pos = new Point(_xmouse, _ymouse);
		if (!m_pos.equals(old_m_pos)) {
			var n_pos:Point = new Point(m_pos.x+(m_pos.x-old_m_pos.x)*1.1, m_pos.y+(m_pos.y-old_m_pos.y)*1.1);
			if (rect.containsPoint(n_pos)) {
				if (out) {
					out = false;
					in_func();
					trace("mouse move in  screen");
				}
				if (out_val) {
					clearInterval(out_val);
				}
			} else {
				clearInterval(out_val);
				delete out_val;
				out_val = setInterval(timeOut, frame*3);
			}
		}
	}
	private static function timeOut() {
		var old_d = m_pos.clone();
		m_pos = new Point(_xmouse, _ymouse);
		if (m_pos.equals(old_d) && !out) {
			out = true;
			out_func();
			trace("mouse move out screen");
		}
		clearInterval(out_val);
		delete out_val;
	}
	public static function startListen() {
		trace("start listen");
		clearInterval(_val);
		delete _val;
		_val = setInterval(cheekOut, frame);
	}
	public static function clearListen() {
		clearInterval(_val);
		delete _val;
	}
	function MouseCheck() {
	}
}