// Gets the spawn point of the UFO in a position that is not near any other UFO.
private static Vector2 SpawnPoint()
{
Point BATTLEFIELD = (Point)Settings.BATTLEFIELD_DIMENSION.VALUE;
Vector2 position;
bool distant;
do
{
distant = true;
position = new Vector2(Mathematics.Random.Next(50, BATTLEFIELD.X - 50 + 1), Mathematics.Random.Next(50, BATTLEFIELD.Y - 50 + 1));
foreach (Ufo u in EntityManager.ufos)
{
if (Mathematics.Pythagoras(position, u.Position, Enums.ENEMY_DISTANCE))
{
distant = false;
break;
}
}
} while (!distant);
return(position);
}
// All hitboxes are circles
private static bool OnCollision(Entity e1, Entity e2)
{
if (e1.Remove || e2.Remove)
{
return(false);
}
return(Mathematics.Pythagoras(e1.Position, e2.Position, (e1.Radius + e2.Radius)));
}