gistfile1.as

var dist:int = unit.distanceTo(unit.targetNode);
var minDist:int = moveSpeed;

if(dist < minDist) {
	unit.targetNode = new FlxPoint();
	unit.currentTask = Unit.TASK_IDLE;
} else {

	var angleRad:Number = Math.atan2(unit.targetNode.y - unit.y, unit.targetNode.x - unit.x);
	var dx:int = Math.cos(angleRad) * moveSpeed;
	var dy:int = Math.sin(angleRad) * moveSpeed;

	unit.x += dx;
	unit.y += dy;

}