public static bool Intersects(Hitbox b, CircularHitbox c)
{
//Vector2 closest = new Vector2(MathHelper.Clamp(c.Position.X, b.Centre.X - b.Size.X / 2, b.Centre.X + b.Size.X / 2),
// MathHelper.Clamp(c.Position.Y, b.Centre.Y - b.Size.Y / 2, b.Centre.Y + b.Size.Y / 2));
//Vector2 distance = c.Position -closest;
//return distance.LengthSquared() < (c.Radius * c.Radius);
float cX = c.Position.X;
float cY = c.Position.X;
float rX = b.Centre.X;
float rY = b.Centre.Y;
float halfWidth = b.Width / 2;
float halfHeight = b.Height / 2;
float closestX = MathHelper.Clamp(cX, rX - halfWidth, rX + halfWidth);
float closestY = MathHelper.Clamp(cY, rY - halfHeight, rY + halfHeight);
float distX = cX - closestX;
float distY = cY - closestY;
float distSq = (distX * distX) + (distY * distY);
return distSq < (c.Radius * c.Radius);
}
public Explosion(Vector2 position, float radius, float time)
{
aoe = new CircularHitbox(position, radius);
Position = position;
timer = time;
}
/// <summary>
/// Query the stage for intersection with a CircularHitbox.
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public List<Entity> QueryCircle(CircularHitbox box, string type)
{
var result = new List<Entity>();
for (int i = 0; i < AllEntities.Count; i++)
{
if (AllEntities[i].HasHitbox && AllEntities[i].Type == type)
{
if (Utils.Intersects(AllEntities[i].Hitbox, box))
result.Add(AllEntities[i]);
}
}
return result;
}