/// <summary>
/// Get a free asteroid sector.
/// </summary>
/// <param name="sectorType">The sector type</param>
/// <param name="lod">The sector LOD (level of detail)</param>
/// <returns>A free asteroid sector</returns>
private AsteroidSectorDecorator GetFreeSteroidSector(int sectorType, int lod)
{
lod = Math.Min(lod, this.MaxLodLevel);
var freeList = this.freeAsteroidSectorList[sectorType, lod];
var busyList = this.busyAsteroidSectorList[sectorType, lod];
AsteroidSectorDecorator result;
if (freeList.Count == 0)
{
result = new AsteroidSectorDecorator("asteroidCounter_" + (asteroidCounter++), sectorType, lod);
this.Owner.AddChild(result.Entity);
this.asteroidSectorList.Add(result);
}
else
{
result = freeList[0];
freeList.RemoveAt(0);
}
busyList.Add(result);
result.Entity.Enabled = true;
return(result);
}
/// <summary>
/// Refresh the asteroid field.
/// </summary>
private void Refresh()
{
this.CleanSectorList();
for (int i = -Border; i <= Border; i++)
{
for (int j = -Border; j <= Border; j++)
{
int asteroidSectorX = this.sectorX + i;
int asteroidSectorY = this.sectorY + j;
int sectorType = this.GetSectorTypeByCoords(asteroidSectorX, asteroidSectorY);
Vector3 position = this.GetPositionByCoordinates(asteroidSectorX, asteroidSectorY);
// Fix a wrong asteroid field position in 3DS MAX
if (position.X == -2000)
{
position.X = -1933.599f;
}
AsteroidSectorDecorator asteroidSector = this.GetFreeSteroidSector(sectorType, Math.Max(Math.Abs(i), Math.Abs(j)));
asteroidSector.Transform.Position = position;
}
}
}