Multiple keypress problem

programming flash
1

Im creating a game which is using multiple keypress to play, but the problem they key are messed up. ( i cant shoot while moving the character, i can shoot but can move the character at the same time ) is it any problem to solve this? Im new to scripting so hope that someone could help out…

here is my code…

var keyListener:Object = new Object();


keyListener.onKeyDown = function() {
	if (Key.isDown(188)) {
		player_mc.gotoAndPlay("shoot");
		fireWeapon();
	}
	if (Key.isDown(87)) {
		player_mc2.gotoAndPlay("shoot");
		fireWeapon2();
	}
	if (Key.isDown(65)) {
		if (_root.player_mc2._y<=430) {
			player_mc2._y -= 0;
		} else {
			player_mc2._x -= 1;
			player_mc2._y -= 5;
			player_mc2._xscale -= 1;
			player_mc2._yscale -= 1;
			apdef._x += 1;
			apdef._y -= 5;
			apdef._xscale -= 1;
			apdef._yscale -= 1;
			startY2 = player_mc2._y;
		}
	}
	if (Key.isDown(68)) {
		if (_root.player_mc2._y>=670) {
		player_mc2._y -= 0;
	} else {
		player_mc2._x += 1;
		player_mc2._y += 5;
		player_mc2._xscale += 1;
		player_mc2._yscale += 1;
		apdef._x -= 1;
		apdef._y += 5;
		apdef._xscale += 1;
		apdef._yscale += 1;
		startY2 = player_mc2._y;
	}
	}
}




function moveup() {
	trace(player_mc._xscale)
	if (_root.player_mc._y<=430) {
		player_mc._y -= 0;
	} else {
		player_mc._x += 1;
		player_mc._y -= 5;
		player_mc._xscale -= 2;
		player_mc._yscale -= 2;
		sfdef._x -= 1;
		sfdef._y -= 5;
		sfdef._xscale -= 1;
		sfdef._yscale -= 1;
		startY = player_mc._y;
	}
}
function movedown() {
	trace(green._xscale*2)
	if (_root.player_mc._y>=690) {
		player_mc._y -= 0;
	} else {
		player_mc._x -= 1;
		player_mc._y += 5;
		player_mc._xscale += 2;
		player_mc._yscale += 2;
		sfdef._x += 1;
		sfdef._y += 5;
		sfdef._xscale += 1;
		sfdef._yscale += 1;
		startY = player_mc._y;
	}
}


Key.addListener(keyListener);