private static void UpdateVoxelRamps(ChunkManager Chunks, VoxelHandle V)
{
if (!V.IsValid)
{
return;
}
if (V.IsEmpty || !V.IsVisible || V.Type == null || !V.Type.CanRamp)
{
V.RampType = RampType.None;
return;
}
var vAbove = VoxelHelpers.GetVoxelAbove(V);
if (vAbove.IsValid && !vAbove.IsEmpty)
{
V.RampType = RampType.None;
return;
}
var compositeRamp = RampType.None;
foreach (var vertex in TopVerticies)
{
// If there are no empty neighbors, no slope.
if (!VoxelHelpers.EnumerateVertexNeighbors2D(V.Coordinate, vertex)
.Any(n =>
{
var handle = Chunks.CreateVoxelHandle(n);
return(!handle.IsValid || handle.IsEmpty);
}))
{
continue;
}
switch (vertex)
{
case VoxelVertex.FrontTopLeft:
compositeRamp |= RampType.TopFrontLeft;
break;
case VoxelVertex.FrontTopRight:
compositeRamp |= RampType.TopFrontRight;
break;
case VoxelVertex.BackTopLeft:
compositeRamp |= RampType.TopBackLeft;
break;
case VoxelVertex.BackTopRight:
compositeRamp |= RampType.TopBackRight;
break;
}
}
V.RampType = compositeRamp;
}
public static float GetTotalWaterHeightCells(ChunkManager ChunkManager, VoxelHandle vox)
{
float tot = 0;
var localVoxelCoordinate = vox.Coordinate.GetLocalVoxelCoordinate();
for (var y = vox.Coordinate.Y; y < ChunkManager.World.WorldSizeInVoxels.Y; y++)
{
var v = ChunkManager.CreateVoxelHandle(new GlobalVoxelCoordinate(vox.Coordinate.X, y, vox.Coordinate.Z));
tot += v.LiquidLevel / (float)WaterManager.maxWaterLevel;
if (y > vox.Coordinate.Y && v.LiquidLevel == 0)
{
return(tot);
}
}
return(tot);
}
private static VertexColorInfo CalculateVertexLight(VoxelHandle Vox, VoxelVertex Vertex, ChunkManager chunks)
{
var neighborsEmpty = 0;
var neighborsChecked = 0;
var color = new VertexColorInfo();
color.DynamicColor = 0;
color.SunColor = 0;
foreach (var c in VoxelHelpers.EnumerateVertexNeighbors(Vox.Coordinate, Vertex))
{
var v = chunks.CreateVoxelHandle(c);
if (!v.IsValid)
{
continue;
}
color.SunColor += v.Sunlight ? 255 : 0;
if (!v.IsEmpty || !v.IsExplored)
{
if (v.Type.EmitsLight)
{
color.DynamicColor = 255;
}
neighborsEmpty += 1;
neighborsChecked += 1;
}
else
{
neighborsChecked += 1;
}
}
var boost = GetAmbienceBoost(Vertex);
var proportionHit = (float)neighborsEmpty / (float)neighborsChecked;
color.AmbientColor = (int)Math.Min((1.0f - proportionHit) * 255.0f, 255);
color.SunColor = (int)Math.Min((float)color.SunColor / (float)neighborsChecked + boost * 255.0f, 255);
return(color);
}
private void DiscreteUpdate(ChunkManager ChunkManager, VoxelChunk chunk)
{
for (var y = 0; y < VoxelConstants.ChunkSizeY; ++y)
{
// Apply 'liquid present' tracking in voxel data to skip entire slices.
if (chunk.Data.LiquidPresent[y] == 0)
{
continue;
}
var layerOrder = SlicePermutations[MathFunctions.RandInt(0, SlicePermutations.Length)];
for (var i = 0; i < layerOrder.Length; ++i)
{
var x = layerOrder[i] % VoxelConstants.ChunkSizeX;
var z = (layerOrder[i] >> VoxelConstants.XDivShift) % VoxelConstants.ChunkSizeZ;
var currentVoxel = VoxelHandle.UnsafeCreateLocalHandle(chunk, new LocalVoxelCoordinate(x, y, z));
if (currentVoxel.TypeID != 0)
{
continue;
}
if (currentVoxel.LiquidType == LiquidType.None || currentVoxel.LiquidLevel < 1)
{
continue;
}
// Evaporate.
if (currentVoxel.LiquidLevel <= EvaporationLevel && MathFunctions.RandEvent(0.01f))
{
if (currentVoxel.LiquidType == LiquidType.Lava)
{
currentVoxel.Type = Library.GetVoxelType("Stone");
}
NeedsMinimapUpdate = true;
currentVoxel.QuickSetLiquid(LiquidType.None, 0);
continue;
}
var voxBelow = ChunkManager.CreateVoxelHandle(new GlobalVoxelCoordinate(currentVoxel.Coordinate.X, currentVoxel.Coordinate.Y - 1, currentVoxel.Coordinate.Z));
if (voxBelow.IsValid && voxBelow.IsEmpty)
{
// Fall into the voxel below.
// Special case: No liquid below, just drop down.
if (voxBelow.LiquidType == LiquidType.None)
{
NeedsMinimapUpdate = true;
CreateSplash(currentVoxel.Coordinate.ToVector3(), currentVoxel.LiquidType);
voxBelow.QuickSetLiquid(currentVoxel.LiquidType, currentVoxel.LiquidLevel);
currentVoxel.QuickSetLiquid(LiquidType.None, 0);
continue;
}
var belowType = voxBelow.LiquidType;
var aboveType = currentVoxel.LiquidType;
var spaceLeftBelow = maxWaterLevel - voxBelow.LiquidLevel;
if (spaceLeftBelow >= currentVoxel.LiquidLevel)
{
NeedsMinimapUpdate = true;
CreateSplash(currentVoxel.Coordinate.ToVector3(), aboveType);
voxBelow.LiquidLevel += currentVoxel.LiquidLevel;
currentVoxel.QuickSetLiquid(LiquidType.None, 0);
HandleLiquidInteraction(voxBelow, aboveType, belowType);
continue;
}
if (spaceLeftBelow > 0)
{
NeedsMinimapUpdate = true;
CreateSplash(currentVoxel.Coordinate.ToVector3(), aboveType);
currentVoxel.LiquidLevel = (byte)(currentVoxel.LiquidLevel - maxWaterLevel + voxBelow.LiquidLevel);
voxBelow.LiquidLevel = maxWaterLevel;
HandleLiquidInteraction(voxBelow, aboveType, belowType);
continue;
}
}
else if (voxBelow.IsValid && currentVoxel.LiquidType == LiquidType.Lava && !voxBelow.IsEmpty && voxBelow.GrassType > 0)
{
voxBelow.GrassType = 0;
}
if (currentVoxel.LiquidLevel <= 1)
{
continue;
}
// Nothing left to do but spread.
RollArray(NeighborPermutations[MathFunctions.RandInt(0, NeighborPermutations.Length)], NeighborScratch, MathFunctions.RandInt(0, 4));
for (var n = 0; n < NeighborScratch.Length; ++n)
{
var neighborOffset = VoxelHelpers.ManhattanNeighbors2D[NeighborScratch[n]];
var neighborVoxel = new VoxelHandle(Chunks, currentVoxel.Coordinate + neighborOffset);
if (neighborVoxel.IsValid && neighborVoxel.IsEmpty)
{
if (neighborVoxel.LiquidLevel < currentVoxel.LiquidLevel)
{
NeedsMinimapUpdate = true;
var amountToMove = (int)(currentVoxel.LiquidLevel * GetSpreadRate(currentVoxel.LiquidType));
if (neighborVoxel.LiquidLevel + amountToMove > maxWaterLevel)
{
amountToMove = maxWaterLevel - neighborVoxel.LiquidLevel;
}
if (amountToMove > 2)
{
CreateSplash(neighborVoxel.Coordinate.ToVector3(), currentVoxel.LiquidType);
}
var newWater = currentVoxel.LiquidLevel - amountToMove;
var sourceType = currentVoxel.LiquidType;
var destType = neighborVoxel.LiquidType;
currentVoxel.QuickSetLiquid(newWater == 0 ? LiquidType.None : sourceType, (byte)newWater);
neighborVoxel.QuickSetLiquid(destType == LiquidType.None ? sourceType : destType, (byte)(neighborVoxel.LiquidLevel + amountToMove));
HandleLiquidInteraction(neighborVoxel, sourceType, destType);
break;
}
}
}
}
}
}
/// <summary>
/// Snaps the supplied coordinate into valid world space. Returns nearest valid voxel to the point.
/// </summary>
/// <param name="chunks"></param>
/// <param name="pos"></param>
/// <returns></returns>
public static VoxelHandle FindValidVoxelNear(ChunkManager chunks, Microsoft.Xna.Framework.Vector3 pos)
{
var clampedPos = MathFunctions.Clamp(pos, chunks.Bounds) + Microsoft.Xna.Framework.Vector3.Down * 0.05f;
return(chunks.CreateVoxelHandle(GlobalVoxelCoordinate.FromVector3(clampedPos)));
}