private void DisposeBillboardCells()
{
_prepareVegetationHandle.Complete();
for (var i = 0; i <= BillboardCellList.Count - 1; i++)
{
BillboardCellList[i].Dispose();
}
BillboardCellList.Clear();
}
private void CreateBillboardCells()
{
DisposeBillboardCells();
var expandedBounds = new Bounds(VegetationSystemBounds.center, VegetationSystemBounds.size);
var currentBillboardCellSize = BillboardCellSize;
if (!Application.isPlaying)
{
currentBillboardCellSize = 400;
}
expandedBounds.Expand(new Vector3(currentBillboardCellSize * 2f, 0, currentBillboardCellSize * 2f));
BillboardCellQuadTree = new QuadTree <BillboardCell>(RectExtension.CreateRectFromBounds(expandedBounds));
var cellXCount = Mathf.CeilToInt(VegetationSystemBounds.size.x / currentBillboardCellSize);
var cellZCount = Mathf.CeilToInt(VegetationSystemBounds.size.z / currentBillboardCellSize);
var corner = new Vector2(VegetationSystemBounds.center.x - VegetationSystemBounds.size.x / 2f,
VegetationSystemBounds.center.z - VegetationSystemBounds.size.z / 2f);
for (var x = 0; x <= cellXCount - 1; x++)
{
for (var z = 0; z <= cellZCount - 1; z++)
{
var billboardCell = new BillboardCell(
new Rect(
new Vector2(currentBillboardCellSize * x + corner.x, currentBillboardCellSize * z + corner.y),
new Vector2(currentBillboardCellSize, currentBillboardCellSize)),
VegetationSystemBounds.center.y, VegetationSystemBounds.size.y);
BillboardCellList.Add(billboardCell);
billboardCell.Index = BillboardCellList.Count - 1;
BillboardCellQuadTree.Insert(billboardCell);
}
}
PrepareAllBillboardCells();
}
