public static TerrainBrush CreateTreeBrush(Random random, int woodIndex, int leavesIndex, int height, int branchesCount, Func <int, float> leavesProbabilityByHeight, Func <int, float> branchesLengthByHeight)
{
TerrainBrush terrainBrush = new TerrainBrush();
terrainBrush.AddRay(0, -1, 0, 0, height, 0, 1, 1, 1, woodIndex);
for (int i = 0; i < branchesCount; i++)
{
int x = 0;
int num = random.Int(0, height);
int z = 0;
float s = branchesLengthByHeight(num);
Vector3 vector = Vector3.Normalize(new Vector3(random.Float(-1f, 1f), random.Float(0f, 0.33f), random.Float(-1f, 1f))) * s;
int x2 = (int)MathUtils.Round(vector.X);
int y = num + (int)MathUtils.Round(vector.Y);
int z2 = (int)MathUtils.Round(vector.Z);
int cutFace = 0;
if (MathUtils.Abs(vector.X) == MathUtils.Max(MathUtils.Abs(vector.X), MathUtils.Abs(vector.Y), MathUtils.Abs(vector.Z)))
{
cutFace = 1;
}
else if (MathUtils.Abs(vector.Y) == MathUtils.Max(MathUtils.Abs(vector.X), MathUtils.Abs(vector.Y), MathUtils.Abs(vector.Z)))
{
cutFace = 4;
}
terrainBrush.AddRay(x, num, z, x2, y, z2, 1, 1, 1, (Func <int?, int?>)((int?v) => v.HasValue ? null : new int?(Terrain.MakeBlockValue(woodIndex, 0, WoodBlock.SetCutFace(0, cutFace)))));
}
for (int j = 0; j < 3; j++)
{
terrainBrush.CalculateBounds(out Point3 min, out Point3 max);
for (int k = min.X - 1; k <= max.X + 1; k++)
{
for (int l = min.Z - 1; l <= max.Z + 1; l++)
{
for (int m = 1; m <= max.Y + 1; m++)
{
float num2 = leavesProbabilityByHeight(m);
if (random.Float(0f, 1f) < num2 && !terrainBrush.GetValue(k, m, l).HasValue&& (terrainBrush.CountNonDiagonalNeighbors(k, m, l, leavesIndex) != 0 || terrainBrush.CountNonDiagonalNeighbors(k, m, l, (Func <int?, int>)((int?v) => (v.HasValue && Terrain.ExtractContents(v.Value) == woodIndex) ? 1 : 0)) != 0))
{
terrainBrush.AddCell(k, m, l, 0);
}
}
}
}
terrainBrush.Replace(0, leavesIndex);
}
terrainBrush.AddCell(0, height, 0, leavesIndex);
terrainBrush.Compile();
return(terrainBrush);
}
public static TerrainBrush CreateMimosaBrush(Random random, float size)
{
TerrainBrush terrainBrush = new TerrainBrush();
int value = m_treeTrunksByType[4];
int value2 = m_treeLeavesByType[4];
terrainBrush.AddRay(0, -1, 0, 0, 0, 0, 1, 1, 1, value);
List <Point3> list = new List <Point3>();
float num = random.Float(0f, (float)Math.PI * 2f);
for (int i = 0; i < 3; i++)
{
float radians = num + (float)i * MathUtils.DegToRad(120f);
Vector3 v = Vector3.Transform(Vector3.Normalize(new Vector3(1f, random.Float(1f, 1.5f), 0f)), Matrix.CreateRotationY(radians));
int num2 = random.Int((int)(0.7f * size), (int)size);
Point3 p = new Point3(0, 0, 0);
Point3 item = new Point3(Vector3.Round(new Vector3(p) + v * num2));
terrainBrush.AddRay(p.X, p.Y, p.Z, item.X, item.Y, item.Z, 1, 1, 1, value);
list.Add(item);
}
foreach (Point3 item2 in list)
{
float num3 = random.Float(0.3f * size, 0.45f * size);
int num4 = (int)MathUtils.Ceiling(num3);
for (int j = item2.X - num4; j <= item2.X + num4; j++)
{
for (int k = item2.Y - num4; k <= item2.Y + num4; k++)
{
for (int l = item2.Z - num4; l <= item2.Z + num4; l++)
{
int num5 = MathUtils.Abs(j - item2.X) + MathUtils.Abs(k - item2.Y) + MathUtils.Abs(l - item2.Z);
float num6 = ((new Vector3(j, k, l) - new Vector3(item2)) * new Vector3(1f, 1.7f, 1f)).Length();
if (num6 <= num3 && (num3 - num6 > 1f || num5 <= 2 || random.Bool(0.7f)) && !terrainBrush.GetValue(j, k, l).HasValue)
{
terrainBrush.AddCell(j, k, l, value2);
}
}
}
}
}
terrainBrush.Compile();
return(terrainBrush);
}
