public static void GenerateChunkVertices(TerrainUpdater updater, TerrainChunk chunk, int x1, int z1, int x2, int z2)
{
if (chunk.ThreadState == TerrainChunkState.InvalidVertices1)
{
Data.Remove(chunk.Coords);
}
Terrain terrain = updater.m_terrain;
TerrainChunk chunkAtCoords = terrain.GetChunkAtCoords(chunk.Coords.X - 1, chunk.Coords.Y - 1);
TerrainChunk chunkAtCoords2 = terrain.GetChunkAtCoords(chunk.Coords.X, chunk.Coords.Y - 1);
TerrainChunk chunkAtCoords3 = terrain.GetChunkAtCoords(chunk.Coords.X + 1, chunk.Coords.Y - 1);
TerrainChunk chunkAtCoords4 = terrain.GetChunkAtCoords(chunk.Coords.X - 1, chunk.Coords.Y);
TerrainChunk chunkAtCoords5 = terrain.GetChunkAtCoords(chunk.Coords.X + 1, chunk.Coords.Y);
TerrainChunk chunkAtCoords6 = terrain.GetChunkAtCoords(chunk.Coords.X - 1, chunk.Coords.Y + 1);
TerrainChunk chunkAtCoords7 = terrain.GetChunkAtCoords(chunk.Coords.X, chunk.Coords.Y + 1);
TerrainChunk chunkAtCoords8 = terrain.GetChunkAtCoords(chunk.Coords.X + 1, chunk.Coords.Y + 1);
if (chunkAtCoords4 == null)
{
x1 = MathUtils.Max(x1, 1);
}
if (chunkAtCoords2 == null)
{
z1 = MathUtils.Max(z1, 1);
}
if (chunkAtCoords5 == null)
{
x2 = MathUtils.Min(x2, 15);
}
if (chunkAtCoords7 == null)
{
z2 = MathUtils.Min(z2, 15);
}
for (int i = x1; i < x2; i++)
{
for (int j = z1; j < z2; j++)
{
switch (i)
{
case 0:
if ((j == 0 && chunkAtCoords == null) || (j == 15 && chunkAtCoords6 == null))
{
continue;
}
break;
case 15:
if ((j == 0 && chunkAtCoords3 == null) || (j == 15 && chunkAtCoords8 == null))
{
continue;
}
break;
}
int num = i + chunk.Origin.X;
int num2 = j + chunk.Origin.Y;
int bottomHeightFast = chunk.GetBottomHeightFast(i, j);
int bottomHeight = terrain.GetBottomHeight(num - 1, num2);
int bottomHeight2 = terrain.GetBottomHeight(num + 1, num2);
int bottomHeight3 = terrain.GetBottomHeight(num, num2 - 1);
int bottomHeight4 = terrain.GetBottomHeight(num, num2 + 1);
int x3 = MathUtils.Min(bottomHeightFast - 1, MathUtils.Min(bottomHeight, bottomHeight2, bottomHeight3, bottomHeight4));
int topHeightFast = chunk.GetTopHeightFast(i, j);
int num3 = MathUtils.Max(x3, 1);
topHeightFast = MathUtils.Min(topHeightFast, 126);
int num4 = TerrainChunk.CalculateCellIndex(i, 0, j);
for (int k = num3; k <= topHeightFast; k++)
{
int cellValueFast = chunk.GetCellValueFast(num4 + k);
int num5 = Terrain.ExtractContents(cellValueFast);
if (num5 != 0)
{
BlocksManager.Blocks[num5].GenerateTerrainVertices(updater.m_subsystemTerrain.BlockGeometryGenerator, chunk.Geometry, cellValueFast, num, k, num2);
chunk.GeometryMinY = MathUtils.Min(chunk.GeometryMinY, k);
chunk.GeometryMaxY = MathUtils.Max(chunk.GeometryMaxY, k);
}
}
}
}
}
private void GenerateTerrain(TerrainChunk chunk, int x1, int z1, int x2, int z2)
{
int num = x2 - x1;
int num2 = z2 - z1;
Terrain terrain = this.subsystemTerrain.Terrain;
int num3 = chunk.Origin.X + x1;
int num4 = chunk.Origin.Y + z1;
TerrainContentsGenerator.Grid2d grid2d = new TerrainContentsGenerator.Grid2d(num, num2);
TerrainContentsGenerator.Grid2d grid2d2 = new TerrainContentsGenerator.Grid2d(num, num2);
for (int i = 0; i < num2; i++)
{
for (int j = 0; j < num; j++)
{
grid2d.Set(j, i, this.CalculateOceanShoreDistance((float)(j + num3), (float)(i + num4)));
grid2d2.Set(j, i, this.CalculateMountainRangeFactor((float)(j + num3), (float)(i + num4)));
}
}
TerrainContentsGenerator.Grid3d grid3d = new TerrainContentsGenerator.Grid3d(num / 4 + 1, 17, num2 / 4 + 1);
for (int k = 0; k < grid3d.SizeX; k++)
{
for (int l = 0; l < grid3d.SizeZ; l++)
{
int num5 = k * 4 + num3;
int num6 = l * 4 + num4;
float num7 = this.CalculateHeight((float)num5, (float)num6);
float num8 = this.CalculateMountainRangeFactor((float)num5, (float)num6);
float num9 = MathUtils.Saturate(0.9f * (num8 - 0.8f) / 0.2f + 0.1f);
for (int m = 0; m < grid3d.SizeY; m++)
{
int num10 = m * 8;
float num11 = num7 - this.TGTurbulenceTopOffset;
float num12 = MathUtils.Lerp(0f, this.TGTurbulenceStrength * num9, MathUtils.Saturate((num11 - (float)num10) * 0.2f)) * MathUtils.PowSign(2f * SimplexNoise.OctavedNoise((float)num5, (float)(num10 + 1000), (float)num6, 0.008f, 3, 2f, 0.75f) - 1f, this.TGTurbulencePower);
float num13 = (float)num10 + num12;
float num14 = num7 - num13;
num14 += MathUtils.Max(4f * (this.TGDensityBias - (float)num10), 0f);
grid3d.Set(k, m, l, num14);
}
}
}
int oceanLevel = this.OceanLevel;
for (int n = 0; n < grid3d.SizeX - 1; n++)
{
for (int num15 = 0; num15 < grid3d.SizeZ - 1; num15++)
{
for (int num16 = 0; num16 < grid3d.SizeY - 1; num16++)
{
float num17;
float num18;
float num19;
float num20;
float num21;
float num22;
float num23;
float num24;
grid3d.Get8(n, num16, num15, out num17, out num18, out num19, out num20, out num21, out num22, out num23, out num24);
float num25 = (num18 - num17) / 4f;
float num26 = (num20 - num19) / 4f;
float num27 = (num22 - num21) / 4f;
float num28 = (num24 - num23) / 4f;
float num29 = num17;
float num30 = num19;
float num31 = num21;
float num32 = num23;
for (int num33 = 0; num33 < 4; num33++)
{
float num34 = (num31 - num29) / 4f;
float num35 = (num32 - num30) / 4f;
float num36 = num29;
float num37 = num30;
for (int num38 = 0; num38 < 4; num38++)
{
float num39 = (num37 - num36) / 8f;
float num40 = num36;
int num41 = num33 + n * 4;
int num42 = num38 + num15 * 4;
int x3 = x1 + num41;
int z3 = z1 + num42;
float x4 = grid2d.Get(num41, num42);
float num43 = grid2d2.Get(num41, num42);
int temperatureFast = chunk.GetTemperatureFast(x3, z3);
int humidityFast = chunk.GetHumidityFast(x3, z3);
float f = num43 - 0.01f * (float)humidityFast;
float num44 = MathUtils.Lerp(100f, 0f, f);
float num45 = MathUtils.Lerp(300f, 30f, f);
bool flag = (temperatureFast > 8 && humidityFast < 8 && num43 < 0.95f) || (MathUtils.Abs(x4) < 12f && num43 < 0.9f);
int num46 = TerrainChunk.CalculateCellIndex(x3, 0, z3);
for (int num47 = 0; num47 < 8; num47++)
{
int num48 = num47 + num16 * 8;
int value = 0;
if (num40 < 0f)
{
if (num48 <= oceanLevel)
{
value = 18;
}
}
else if (flag)
{
if (num40 < num44)
{
value = 4;
}
else if (num40 < num45)
{
value = 3;
}
else
{
value = 67;
}
}
else if (num40 < num45)
{
value = 3;
}
else
{
value = 67;
}
chunk.SetCellValueFast(num46 + num48, value);
num40 += num39;
}
num36 += num34;
num37 += num35;
}
num29 += num25;
num30 += num26;
num31 += num27;
num32 += num28;
}
}
}
}
}
