Actionscript problem

1

I’ve been trying to make a simple Space Invader game for a buddy but my hitTest is messing up and I’m too dense to figure out what’s wrong…any chance you gurus out there could take a look and guide me in the right direction, please? Actionscript is MX so I guess some of it might need sqeezing?C:-)

stop();
   bombNum = 0;
   lives = 3;
   score = 0;
   speed=10;
   // declare global functions
   //
 //	---------	INITIALISE ALIENS	-------------	//
   _global.initAliens = function(mc) {
   	depth = 0;
   	for (var i = 0; i<3; i++) {
   		for (var j = 0; j<10; j++) {
   			attachMovie(mc, mc+i+"_"+j, 100+depth);
   			_root[mc+i+"_"+j]._x = j*40;
   			_root[mc+i+"_"+j]._y = i*40-80;
   			depth++;
   		}
   	}
   };
   //
 //	-------	MOVE ALIENS	-----------------	//
   _global.moveAliens = function(mc, frame,alspeed) {
   	_root.deadcount = 0;
   	// move aliens
   	for (var i = 0; i<3; i++) {
   		for (var j = 0; j<10; j++) {
   			// move horizontal
   			_root[mc+i+"_"+j]._x += speed;
   			// check if aliens hit defender
   			if(_root[mc+i+"_"+j].hitTest(_root.defender)){
   				cleanup(mc);
   				_root.gotoAndStop(1);
   			}
   			// check if any aliens left alive
   			if (_root[mc+i+"_"+j] != null) {
   				++_root.deadcount;
   			}
   			// -------test bullet hit
   			bulleti = 6;
   			while (--bulleti>0) {
 		 	if (_root[mc+i+"_"+j].hittest(eval("_root.bullet"+bulleti))) {
   		    	    _root[mc+i+"_"+j].removeMovieClip();
 		 	 eval("_root.bullet"+bulleti).removeMovieClip();
 					_root.score += 1;
   				}
   			}
   			// hits left wall
   			if (_root[mc+i+"_"+j]._x<0) {
   				// set direction to  right
   				speed = alspeed;
   				// drop down
   				dropdown = true;
   				break;
   			}
   			// hit right wall
   			if (_root[mc+i+"_"+j]._x>Stage.width) {
   				// set direction to left
   				speed = -alspeed;
   				// drop down
   				dropdown = true;
   				break;
   			}
   		}
   	}
   	// drop down all the rows
   	if (dropdown) {
   		for (var i = 0; i<3; i++) {
   			for (var j = 0; j<10; j++) {
   				_root[mc+i+"_"+j]._y += 20;
   			}
   		}
   	}
   	// reset flag
   	dropdown = false;
   	// if all aliens are dead
   	if (_root.deadcount == 0) {
   		// go to next level	
   		_root.bombspeed = 0.0;
   		_root.gotoAndStop(frame);
   	}
   };
   //
 //	-----------	INIT BOMBS	---------------	//
   _global.initBombs = function(bombspeed) {
   	// drop bombs
   	if (Math.random()<bombspeed) {
   		// duplicate the bomb mc
   		attachMovie("bomb", "bomb"+bombNum, 200+bombNum);
   		// set the coords to a random position
   		eval("_root.bomb"+bombNum)._x = random(700);
   		eval("_root.bomb"+bombNum)._y = 300*Math.random();
   		// increment the bomb number
   		bombNum++;
   		// if more than 10 bombs , start again at 0
   		if (bombNum>10) {
   			bombNum = 0;
   		}
   	}
   };
 //	--------------	MOVE BOMBS	----------------	//
   _global.moveBombs = function(mc) {
   	var bombi = 0;
   	while (bombi<11) {
   		_root["bomb"+bombi]._y += 5;
   		// hitest defender
   		if (_root["bomb"+bombi].hittest(_root.defender)) {
   			_root["bomb"+bombi].removeMovieClip();
   			_root.lives -= 1;
   			// lives are all gone
   			if (_root.lives<=0) {
   				// go to start
   				Mouse.show();
   				_root.bombspeed = 0.0;
   				_root.gotoAndStop(1);
   				for (var i = 0; i<3; i++) {
 					for (var j = 0; j<10; j++) {
 		 		 _root[mc+i+"_"+j]._visible = false;
   					}
   				}
   				break;
   			}
   		}
   		// end hitest defender
   		if (_root["bomb"+bombi]._y>Stage.height) {
   			_root["bomb"+bombi].removeMovieClip();
   		}
   		bombi++;
   	}
   };
   //
 //	----------	CLEAN UP 	--------	//
   _global.cleanup = function(mc) {
   	_root.bombspeed = 0.0;
   	for (var i = 0; i<3; i++) {
   		for (var j = 0; j<10; j++) {
   			// move horizontal
   			_root[mc+i+"_"+j]._visible = false;
   		}
   	}
   };

Cheers

Yossi