/// <summary>
/// Creates a new meteor entity.
/// </summary>
/// <param name="type">The type of the new meteor</param>
/// <param name="position">The position of the new meteor</param>
/// <param name="direction">The direction of the new meteor</param>
/// <param name="linearVelocity">The linear velocity of the new meteor</param>
/// <param name="rotationVelocity">The rotation velocity of the new meteor</param>
///
/// <returns>The new meteor entity.</returns>
public Meteor CreateMeteor(MeteorType type, Vector2 position, Vector2 direction, float linearVelocity, float rotationVelocity, bool inject)
{
Meteor newMeteor = null;
switch (type)
{
case MeteorType.TINY: newMeteor = new TinyMeteor(position, direction, linearVelocity, rotationVelocity); break;
case MeteorType.SMALL: newMeteor = new SmallMeteor(position, direction, linearVelocity, rotationVelocity); break;
case MeteorType.MEDIUM: newMeteor = new MediumMeteor(position, direction, linearVelocity, rotationVelocity); break;
case MeteorType.BIG: newMeteor = new BigMeteor(position, direction, linearVelocity, rotationVelocity); break;
}
if (inject)
{
_entityManager.AddEntity(newMeteor);
}
return(newMeteor);
}
/// <summary>
/// Splits a meteor entity into 2 smaller meteors entities.
/// </summary>
/// <param name="meteor">The meteor that has to be split.</param>
/// <param name="inject">Whether the smaller meteors should be injected into the entity manager.</param>
public List <Meteor> SplitMeteor(Meteor meteor, bool inject)
{
if (meteor is TinyMeteor)
{
throw new InvalidOperationException("Can't split a meteor of type TinyMeteor");
}
List <Meteor> newMeteors = new List <Meteor>();
float currentDirection = VectorHelper.VectorToAngle(meteor.Direction);
Vector2 newDirection = Vector2.Zero;
for (int i = 0; i < 2; i++)
{
if (i == 0)
{
newDirection = VectorHelper.AngleToVector(currentDirection + (float)(Math.PI / 2));
}
else
{
newDirection = VectorHelper.AngleToVector(currentDirection - (float)(Math.PI / 2));
}
if (meteor is SmallMeteor)
{
newMeteors.Add(CreateMeteor(MeteorType.TINY, meteor.Position, newDirection, inject));
}
if (meteor is MediumMeteor)
{
newMeteors.Add(CreateMeteor(MeteorType.SMALL, meteor.Position, newDirection, inject));
}
if (meteor is BigMeteor)
{
newMeteors.Add(CreateMeteor(MeteorType.MEDIUM, meteor.Position, newDirection, inject));
}
}
return(newMeteors);
}
