/// <summary>
/// Update a specific voxel (Called from world update thread)
/// </summary>
public override bool UpdateVoxel(uint Tick, Point LocalPosition, VoxelInstance Voxel, VoxelChunk Chunk)
{
// Perform cleanup, if liquid too small
if (Tick % mCleanRate == 0 && mRandom.Next(0, 100) < mCleanPercent)
{
// Replace with air, if no fill
if (Voxel.mMetaFlags <= 1)
{
Voxel.SetNew(0);
return(true);
}
}
// Attempt to settle liquids other than puddles (Put at multiple of 2)
if (Tick % mSettleRate == 0 && Voxel.mMetaFlags > 1)
{
if (Voxel.mMetaFlags % 2 != 0)
{
Voxel.mMetaFlags--;
return(true);
}
if (Voxel.mMetaFlags == 0)
{
Voxel.SetNew(0);
return(true);
}
}
// Only update at given tick rate
if (Tick % mUpdateRate != 0)
{
return(false);
}
// Clamp liquid to max height
if (Voxel.mMetaFlags > VoxelData_Liquid.MaxHeight)
{
Voxel.mMetaFlags = (ushort)VoxelData_Liquid.MaxHeight;
}
ushort startHeight = Voxel.mMetaFlags;
VoxelInstance above = Chunk.Get(LocalPosition.x, LocalPosition.y + 1, LocalPosition.z);
VoxelInstance below = Chunk.Get(LocalPosition.x, LocalPosition.y - 1, LocalPosition.z);
VoxelInstance left = Chunk.Get(LocalPosition.x - 1, LocalPosition.y, LocalPosition.z);
VoxelInstance right = Chunk.Get(LocalPosition.x + 1, LocalPosition.y, LocalPosition.z);
VoxelInstance front = Chunk.Get(LocalPosition.x, LocalPosition.y, LocalPosition.z - 1);
VoxelInstance back = Chunk.Get(LocalPosition.x, LocalPosition.y, LocalPosition.z + 1);
// Move liquid down and then out
AttemptLiquidDisperse(Voxel, below, true);
AttemptAirDisperse(Voxel, below, true);
if (Voxel.mMetaFlags > 1)
{
// Shuffle order everytime to prevent any flattening issues
uint order = (uint)mRandom.Next(0, 4);
switch (order)
{
case 0:
AttemptAirDisperse(Voxel, left);
AttemptAirDisperse(Voxel, right);
AttemptAirDisperse(Voxel, front);
AttemptAirDisperse(Voxel, back);
AttemptLiquidDisperse(Voxel, left);
AttemptLiquidDisperse(Voxel, right);
AttemptLiquidDisperse(Voxel, front);
AttemptLiquidDisperse(Voxel, back);
break;
case 1:
AttemptAirDisperse(Voxel, back);
AttemptAirDisperse(Voxel, left);
AttemptAirDisperse(Voxel, right);
AttemptAirDisperse(Voxel, front);
AttemptLiquidDisperse(Voxel, back);
AttemptLiquidDisperse(Voxel, left);
AttemptLiquidDisperse(Voxel, right);
AttemptLiquidDisperse(Voxel, front);
break;
case 2:
AttemptAirDisperse(Voxel, front);
AttemptAirDisperse(Voxel, back);
AttemptAirDisperse(Voxel, left);
AttemptAirDisperse(Voxel, right);
AttemptLiquidDisperse(Voxel, front);
AttemptLiquidDisperse(Voxel, back);
AttemptLiquidDisperse(Voxel, left);
AttemptLiquidDisperse(Voxel, right);
break;
case 3:
AttemptAirDisperse(Voxel, right);
AttemptAirDisperse(Voxel, front);
AttemptAirDisperse(Voxel, back);
AttemptAirDisperse(Voxel, left);
AttemptLiquidDisperse(Voxel, right);
AttemptLiquidDisperse(Voxel, front);
AttemptLiquidDisperse(Voxel, back);
AttemptLiquidDisperse(Voxel, left);
break;
}
}
// Replace with air, if no fill
if (Voxel.mMetaFlags == 0)
{
Voxel.SetNew(0);
return(true);
}
return(Voxel.mMetaFlags != startHeight);
}
