// used for sorting with other instances based on distance between tower and enemy
public int CompareTo(object obj)
{
if (obj == null)
{
return(1);
}
LaserEnemyClass other = obj as LaserEnemyClass;
if (other != null)
{
return(this.distance.CompareTo(other.distance));
}
else
{
throw new ArgumentException("Object is not a LaserEnemyClass");
}
}
// assigns an enemy from a previously constructed instance to this one
public void assignEnemy(LaserEnemyClass obj)
{
this.enemy = obj.enemy;
this.distance = obj.distance;
}