public float?CalculateDistanceToFluid(Vector3 p, int radius, bool flowingFluidOnly)
{
float num = float.MaxValue;
Terrain terrain = base.SubsystemTerrain.Terrain;
int num2 = Terrain.ToCell(p.X) - radius;
int num3 = Terrain.ToCell(p.X) + radius;
int num4 = MathUtils.Clamp(Terrain.ToCell(p.Y) - radius, 0, 254);
int num5 = MathUtils.Clamp(Terrain.ToCell(p.Y) + radius, 0, 254);
int num6 = Terrain.ToCell(p.Z) - radius;
int num7 = Terrain.ToCell(p.Z) + radius;
for (int i = num6; i <= num7; i++)
{
for (int j = num2; j <= num3; j++)
{
TerrainChunk chunkAtCell = terrain.GetChunkAtCell(j, i);
if (chunkAtCell == null)
{
continue;
}
int k = TerrainChunk.CalculateCellIndex(j & 0xF, num4, i & 0xF);
for (int l = num4; l <= num5; l++, k++)
{
int cellValueFast = chunkAtCell.GetCellValueFast(k);
int contents = Terrain.ExtractContents(cellValueFast);
if (!m_fluidBlock.IsTheSameFluid(contents))
{
continue;
}
if (flowingFluidOnly)
{
if (FluidBlock.GetLevel(Terrain.ExtractData(cellValueFast)) == 0)
{
continue;
}
int contents2 = Terrain.ExtractContents(chunkAtCell.GetCellValueFast(k + 1));
if (m_fluidBlock.IsTheSameFluid(contents2))
{
continue;
}
}
float num8 = p.X - ((float)j + 0.5f);
float num9 = p.Y - ((float)l + 1f);
float num10 = p.Z - ((float)i + 0.5f);
float num11 = num8 * num8 + num9 * num9 + num10 * num10;
if (num11 < num)
{
num = num11;
}
}
}
}
if (num == float.MaxValue)
{
return(null);
}
return(MathUtils.Sqrt(num));
}
public static float?CalculateSmoothLight(SubsystemTerrain subsystemTerrain, Vector3 p)
{
p -= new Vector3(0.5f);
int num = (int)MathUtils.Floor(p.X);
int num2 = (int)MathUtils.Floor(p.Y);
int num3 = (int)MathUtils.Floor(p.Z);
int x = (int)MathUtils.Ceiling(p.X);
int num4 = (int)MathUtils.Ceiling(p.Y);
int z = (int)MathUtils.Ceiling(p.Z);
Terrain terrain = subsystemTerrain.Terrain;
if (num2 >= 0 && num4 <= 255)
{
TerrainChunk chunkAtCell = terrain.GetChunkAtCell(num, num3);
TerrainChunk chunkAtCell2 = terrain.GetChunkAtCell(x, num3);
TerrainChunk chunkAtCell3 = terrain.GetChunkAtCell(num, z);
TerrainChunk chunkAtCell4 = terrain.GetChunkAtCell(x, z);
if (chunkAtCell != null && chunkAtCell.State >= TerrainChunkState.InvalidVertices1 && chunkAtCell2 != null && chunkAtCell2.State >= TerrainChunkState.InvalidVertices1 && chunkAtCell3 != null && chunkAtCell3.State >= TerrainChunkState.InvalidVertices1 && chunkAtCell4 != null && chunkAtCell4.State >= TerrainChunkState.InvalidVertices1)
{
float f = p.X - (float)num;
float f2 = p.Y - (float)num2;
float f3 = p.Z - (float)num3;
float x2 = terrain.GetCellLightFast(num, num2, num3);
float x3 = terrain.GetCellLightFast(num, num2, z);
float x4 = terrain.GetCellLightFast(num, num4, num3);
float x5 = terrain.GetCellLightFast(num, num4, z);
float x6 = terrain.GetCellLightFast(x, num2, num3);
float x7 = terrain.GetCellLightFast(x, num2, z);
float x8 = terrain.GetCellLightFast(x, num4, num3);
float x9 = terrain.GetCellLightFast(x, num4, z);
float x10 = MathUtils.Lerp(x2, x6, f);
float x11 = MathUtils.Lerp(x3, x7, f);
float x12 = MathUtils.Lerp(x4, x8, f);
float x13 = MathUtils.Lerp(x5, x9, f);
float x14 = MathUtils.Lerp(x10, x12, f2);
float x15 = MathUtils.Lerp(x11, x13, f2);
float num5 = MathUtils.Lerp(x14, x15, f3);
int num6 = (int)MathUtils.Floor(num5);
int num7 = (int)MathUtils.Ceiling(num5);
float f4 = num5 - (float)num6;
return(MathUtils.Lerp(LightIntensityByLightValue[num6], LightIntensityByLightValue[num7], f4));
}
}
return(null);
}
public void ChangeCell(int x, int y, int z, int value, bool updateModificationCounter = true)
{
if (!Terrain.IsCellValid(x, y, z))
{
return;
}
int cellValueFast = Terrain.GetCellValueFast(x, y, z);
value = Terrain.ReplaceLight(value, 0);
cellValueFast = Terrain.ReplaceLight(cellValueFast, 0);
if (value == cellValueFast)
{
return;
}
Terrain.SetCellValueFast(x, y, z, value);
TerrainChunk chunkAtCell = Terrain.GetChunkAtCell(x, z);
if (chunkAtCell != null)
{
if (updateModificationCounter)
{
chunkAtCell.ModificationCounter++;
}
TerrainUpdater.DowngradeChunkNeighborhoodState(chunkAtCell.Coords, 1, TerrainChunkState.InvalidLight, forceGeometryRegeneration: false);
}
m_modifiedCells[new Point3(x, y, z)] = true;
int num = Terrain.ExtractContents(cellValueFast);
int num2 = Terrain.ExtractContents(value);
if (num2 != num)
{
SubsystemBlockBehavior[] blockBehaviors = m_subsystemBlockBehaviors.GetBlockBehaviors(num);
for (int i = 0; i < blockBehaviors.Length; i++)
{
blockBehaviors[i].OnBlockRemoved(cellValueFast, value, x, y, z);
}
SubsystemBlockBehavior[] blockBehaviors2 = m_subsystemBlockBehaviors.GetBlockBehaviors(num2);
for (int j = 0; j < blockBehaviors2.Length; j++)
{
blockBehaviors2[j].OnBlockAdded(value, cellValueFast, x, y, z);
}
}
else
{
SubsystemBlockBehavior[] blockBehaviors3 = m_subsystemBlockBehaviors.GetBlockBehaviors(num2);
for (int k = 0; k < blockBehaviors3.Length; k++)
{
blockBehaviors3[k].OnBlockModified(value, cellValueFast, x, y, z);
}
}
}
public void UpdateIsTop(int value, int x, int y, int z)
{
Terrain terrain = base.SubsystemTerrain.Terrain;
if (y < 255)
{
TerrainChunk chunkAtCell = terrain.GetChunkAtCell(x, z);
if (chunkAtCell != null)
{
int num = TerrainChunk.CalculateCellIndex(x & 0xF, y, z & 0xF);
int contents = Terrain.ExtractContents(chunkAtCell.GetCellValueFast(num + 1));
int data = Terrain.ExtractData(value);
bool isTop = !m_fluidBlock.IsTheSameFluid(contents);
chunkAtCell.SetCellValueFast(num, Terrain.ReplaceData(value, FluidBlock.SetIsTop(data, isTop)));
}
}
}
public static bool IsPowered(Terrain terrain, int x, int y, int z)
{
var chunk = terrain.GetChunkAtCell(x, z);
if (y < 0 || y > 127 || chunk == null)
{
return(false);
}
int cellValue = terrain.GetCellValueFast(x + 1, y, z);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
cellValue = terrain.GetCellValueFast(x - 1, y, z);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
if (y < 127)
{
cellValue = chunk.GetCellValueFast(x & 15, y + 1, z & 15);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
}
if (y > 0)
{
cellValue = chunk.GetCellValueFast(x & 15, y - 1, z & 15);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
}
cellValue = terrain.GetCellValueFast(x, y, z + 1);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
cellValue = terrain.GetCellValueFast(x, y, z - 1);
if (FurnaceNBlock.GetHeatLevel(cellValue) != 0)
{
cellValue = Terrain.ExtractContents(cellValue);
if (cellValue == EngineBlock.Index || cellValue == EngineHBlock.Index)
{
return(true);
}
}
return(false);
}
public void CalculateTemperature(int x, int y, int z, float meterTemperature, float meterInsulation, out float temperature, out float temperatureFlux)
{
m_toVisit.Clear();
for (int i = 0; i < m_visited.Length; i++)
{
m_visited[i] = 0;
}
float num = 0f;
float num2 = 0f;
float num3 = 0f;
float num4 = 0f;
float num5 = 0f;
float num6 = 0f;
m_toVisit.Add(133152);
for (int j = 0; j < m_toVisit.Count; j++)
{
int num7 = m_toVisit.Array[j];
if ((m_visited[num7 / 32] & (1 << num7)) != 0)
{
continue;
}
m_visited[num7 / 32] |= 1 << num7;
int num8 = (num7 & 0x3F) - 32;
int num9 = ((num7 >> 6) & 0x3F) - 32;
int num10 = ((num7 >> 12) & 0x3F) - 32;
int num11 = num8 + x;
int num12 = num9 + y;
int num13 = num10 + z;
Terrain terrain = base.SubsystemTerrain.Terrain;
TerrainChunk chunkAtCell = terrain.GetChunkAtCell(num11, num13);
if (chunkAtCell == null || num12 < 0 || num12 >= 256)
{
continue;
}
int x2 = num11 & 0xF;
int y2 = num12;
int z2 = num13 & 0xF;
int cellValueFast = chunkAtCell.GetCellValueFast(x2, y2, z2);
int num14 = Terrain.ExtractContents(cellValueFast);
Block block = BlocksManager.Blocks[num14];
float heat = GetHeat(cellValueFast);
if (heat > 0f)
{
int num15 = MathUtils.Abs(num8) + MathUtils.Abs(num9) + MathUtils.Abs(num10);
int num16 = (num15 <= 0) ? 1 : (4 * num15 * num15 + 2);
float num17 = 1f / (float)num16;
num5 += num17 * 36f * heat;
num6 += num17;
}
else if (block.IsHeatBlocker(cellValueFast))
{
int num18 = MathUtils.Abs(num8) + MathUtils.Abs(num9) + MathUtils.Abs(num10);
int num19 = (num18 <= 0) ? 1 : (4 * num18 * num18 + 2);
float num20 = 1f / (float)num19;
float num21 = terrain.SeasonTemperature;
float num22 = SubsystemWeather.GetTemperatureAdjustmentAtHeight(y2);
float num23 = (block is WaterBlock) ? (MathUtils.Max((float)chunkAtCell.GetTemperatureFast(x2, z2) + num21 - 6f, 0f) + num22) : ((!(block is IceBlock)) ? ((float)chunkAtCell.GetTemperatureFast(x2, z2) + num21 + num22) : (0f + num21 + num22));
num += num20 * num23;
num2 += num20;
}
else if (y >= chunkAtCell.GetTopHeightFast(x2, z2))
{
int num24 = MathUtils.Abs(num8) + MathUtils.Abs(num9) + MathUtils.Abs(num10);
int num25 = (num24 <= 0) ? 1 : (4 * num24 * num24 + 2);
float num26 = 1f / (float)num25;
PrecipitationShaftInfo precipitationShaftInfo = m_subsystemWeather.GetPrecipitationShaftInfo(x, z);
float num27 = terrain.SeasonTemperature;
float num28 = (y >= precipitationShaftInfo.YLimit) ? MathUtils.Lerp(0f, -2f, precipitationShaftInfo.Intensity) : 0f;
float num29 = MathUtils.Lerp(-6f, 0f, m_subsystemSky.SkyLightIntensity);
float num30 = SubsystemWeather.GetTemperatureAdjustmentAtHeight(y2);
num3 += num26 * ((float)chunkAtCell.GetTemperatureFast(x2, z2) + num27 + num28 + num29 + num30);
num4 += num26;
}
else if (m_toVisit.Count < 4090)
{
if (num8 > -30)
{
m_toVisit.Add(num7 - 1);
}
if (num8 < 30)
{
m_toVisit.Add(num7 + 1);
}
if (num9 > -30)
{
m_toVisit.Add(num7 - 64);
}
if (num9 < 30)
{
m_toVisit.Add(num7 + 64);
}
if (num10 > -30)
{
m_toVisit.Add(num7 - 4096);
}
if (num10 < 30)
{
m_toVisit.Add(num7 + 4096);
}
}
}
float num31 = 0f;
for (int k = -7; k <= 7; k++)
{
for (int l = -7; l <= 7; l++)
{
TerrainChunk chunkAtCell2 = base.SubsystemTerrain.Terrain.GetChunkAtCell(x + k, z + l);
if (chunkAtCell2 == null || chunkAtCell2.State < TerrainChunkState.InvalidVertices1)
{
continue;
}
for (int m = -7; m <= 7; m++)
{
int num32 = k * k + m * m + l * l;
if (num32 > 49 || num32 <= 0)
{
continue;
}
int x3 = (x + k) & 0xF;
int num33 = y + m;
int z3 = (z + l) & 0xF;
if (num33 >= 0 && num33 < 256)
{
float heat2 = GetHeat(chunkAtCell2.GetCellValueFast(x3, num33, z3));
if (heat2 > 0f && !base.SubsystemTerrain.Raycast(new Vector3(x, y, z) + new Vector3(0.5f, 0.75f, 0.5f), new Vector3(x + k, y + m, z + l) + new Vector3(0.5f, 0.75f, 0.5f), useInteractionBoxes: false, skipAirBlocks: true, delegate(int raycastValue, float d)
{
Block block2 = BlocksManager.Blocks[Terrain.ExtractContents(raycastValue)];
return(block2.IsCollidable && !block2.IsTransparent);
}).HasValue)
{
num31 += heat2 * 3f / (float)(num32 + 2);
}
}
}
}
}
float num34 = 0f;
float num35 = 0f;
if (num31 > 0f)
{
float num36 = 3f * num31;
num34 += 35f * num36;
num35 += num36;
}
if (num2 > 0f)
{
float num37 = 1f;
num34 += num / num2 * num37;
num35 += num37;
}
if (num4 > 0f)
{
float num38 = 4f * MathUtils.Pow(num4, 0.25f);
num34 += num3 / num4 * num38;
num35 += num38;
}
if (num6 > 0f)
{
float num39 = 1.5f * MathUtils.Pow(num6, 0.25f);
num34 += num5 / num6 * num39;
num35 += num39;
}
if (meterInsulation > 0f)
{
num34 += meterTemperature * meterInsulation;
num35 += meterInsulation;
}
temperature = ((num35 > 0f) ? (num34 / num35) : meterTemperature);
temperatureFlux = num35 - meterInsulation;
}