private TreeInstance[] PlaceTreeOnPositions(List <Vector2> p_positions, TreeLayerData p_treeLayerConfig)
{
List <TreeInstance> list = new List <TreeInstance>();
for (Int32 i = 0; i < p_positions.Count; i++)
{
TreeInstance item = default(TreeInstance);
Single num = p_positions[i].y / GetTerrainData().size.z;
Single num2 = p_positions[i].x / GetTerrainData().size.x;
Single interpolatedHeight = GetTerrainData().GetInterpolatedHeight(num, num2);
Single y = interpolatedHeight / GetTerrainData().size.y;
if (interpolatedHeight <= p_treeLayerConfig.MaxHeight && interpolatedHeight >= p_treeLayerConfig.MinHeight)
{
Single time = GetTerrainData().GetAlphamaps(Mathf.RoundToInt(num * GetTerrainData().alphamapWidth), Mathf.RoundToInt(num2 * GetTerrainData().alphamapHeight), 1, 1)[0, 0, p_treeLayerConfig.SplatLayerID];
Single num3 = 0f;
foreach (TreeInstanceData treeInstanceData2 in p_treeLayerConfig.TreeInstanceData)
{
num3 += treeInstanceData2.IntensityDistribution.Evaluate(time);
}
if (num3 < 1.0)
{
num3 = 1f;
}
TreeInstanceData treeInstanceData3 = null;
Single num4 = UnityEngine.Random.Range(0f, num3);
foreach (TreeInstanceData treeInstanceData5 in p_treeLayerConfig.TreeInstanceData)
{
Single num5 = treeInstanceData5.IntensityDistribution.Evaluate(time);
if (num4 < num5)
{
treeInstanceData3 = treeInstanceData5;
break;
}
num4 -= num5;
}
if (treeInstanceData3 != null)
{
Single num6 = treeInstanceData3.IntensityScale.Evaluate(time);
if (GetTerrainData().GetSteepness(num, num2) <= p_treeLayerConfig.MaxSteepness)
{
item.position = new Vector3(num, y, num2);
item.prototypeIndex = treeInstanceData3.PrototypeID;
Single num7 = p_treeLayerConfig.Scale * (1f + UnityEngine.Random.Range(-p_treeLayerConfig.ScaleVariation, p_treeLayerConfig.ScaleVariation)) * num6;
item.heightScale = num7;
item.widthScale = num7;
item.color = Color.Lerp(p_treeLayerConfig.ColorHighValues, p_treeLayerConfig.ColorLowValues, UnityEngine.Random.value);
item.lightmapColor = Color.white;
list.Add(item);
}
}
}
}
return(list.ToArray());
}
public TreeInstance[] PlaceTreeLayer(TreeLayerData p_layerData)
{
List <TreeInstance> list = new List <TreeInstance>();
List <Vector2> layerCells = GetLayerCells(p_layerData.SplatLayerID, p_layerData.IntensityThreshold, p_layerData.Distance, p_layerData.DistanceNoise);
List <Vector2> list2 = layerCells;
TreeInstance[] collection = new TreeInstance[list2.Count];
collection = PlaceTreeOnPositions(list2, p_layerData);
list.AddRange(collection);
return(list.ToArray());
}
