protected override JobHandle OnUpdate(JobHandle inputDeps)
{
var barrier = m_Barrier.CreateCommandBuffer().ToConcurrent();
var level = GetSingleton <LevelComponent>();
var voxelBuffer = m_Barrier.GetBufferFromEntity <VoxelBuffer>(false);
var updateVoxelHandle = Entities
.WithBurst()
//.WithoutBurst()
.WithNativeDisableParallelForRestriction(voxelBuffer)
.WithName("Update_Chunk")
.ForEach((Entity entity, int entityInQueryIndex, ref ChunkComponent cc, in UpdateChunkTag updateData, in LocalToParent pp) =>
{
barrier.RemoveComponent <UpdateChunkTag>(entityInQueryIndex, entity);
var buffer = voxelBuffer[entity];
var stencil = updateData.input;
var stencilCenter = new float4(stencil.centerX, stencil.centerY, 0, 1);
var translatedStencil = math.mul(math.inverse(pp.Value), stencilCenter);
var xNeighbor = cc.leftNeighbour;
var yNeighbor = cc.upNeighbour;
stencil.centerX = translatedStencil.x;
stencil.centerY = translatedStencil.y;
{
int xStart = (int)(stencil.XStart / level.voxelSize);
int xEnd = (int)((stencil.XEnd) / level.voxelSize);
int yStart = (int)(stencil.YStart / level.voxelSize);
int yEnd = (int)(stencil.YEnd / level.voxelSize);
if (xStart < 0)
{
xStart = 0;
}
if (yStart < 0)
{
yStart = 0;
}
if (xEnd >= LevelComponent.VoxelResolution)
{
xEnd = LevelComponent.VoxelResolution - 1;
}
if (yEnd >= LevelComponent.VoxelResolution)
{
yEnd = LevelComponent.VoxelResolution - 1;
}
for (int y = yStart; y <= yEnd; y++)
{
for (int x = xStart; x <= xEnd; x++)
{
int i = y * LevelComponent.VoxelResolution + x;
float2 pos = buffer[i].Value.position;
if (stencil.InRange(pos))
{
buffer[i] = buffer[i].Value.Copy(stencil.fillType);
if (stencil.shape == VoxelShape.Rectangle)
{
handleSquareY(ref voxelBuffer, ref buffer, ref stencil, yNeighbor, x, y, i);
handleSquareX(ref voxelBuffer, ref buffer, ref stencil, xNeighbor, x, y, i);
}
else
{
handleCircleX(ref voxelBuffer, ref buffer, ref stencil, xNeighbor, x, y, i);
handleCircleY(ref voxelBuffer, ref buffer, ref stencil, yNeighbor, x, y, i);
}
}
}
}
}
barrier.AddComponent <TriangulateTag>(entityInQueryIndex, entity);
}).Schedule(inputDeps);
protected override JobHandle OnUpdate(JobHandle inputDeps)
{
inputDeps.Complete();
var barrier = m_Barrier.CreateCommandBuffer().ToConcurrent();
var bfe = m_Barrier.GetBufferFromEntity <VoxelBuffer>(true);
var level = GetSingleton <LevelComponent>();
var handle = Entities
.WithBurst()
.WithReadOnly(bfe)
.WithName("Do_Triangulation")
.WithAll <RenderMesh>()
.ForEach((Entity entity, int entityInQueryIndex, ref ChunkComponent cc, in TriangulateTag updateData) =>
{
int edgeCacheMin = 0, edgeCacheMax = 0;
var xNeighbour = cc.leftNeighbour;
var yNeighbour = cc.upNeighbour;
var xyNeighbour = cc.diagNeighbour;
var rowCacheMax = new NativeArray <int>(LevelComponent.VoxelResolution * 2 + 1, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
var rowCacheMin = new NativeArray <int>(LevelComponent.VoxelResolution * 2 + 1, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
barrier.RemoveComponent <TriangulateTag>(entityInQueryIndex, entity);
var vertices = barrier.AddBuffer <VectorBuffer>(entityInQueryIndex, entity);
var triangles = barrier.AddBuffer <IntBuffer>(entityInQueryIndex, entity);
FillFirstRowCache(level.chunkSize);
TriangulateCellRows(level.chunkSize);
if (cc.upNeighbour != Entity.Null)
{
TriangulateGapRow(level.chunkSize);
}
rowCacheMax.Dispose();
rowCacheMin.Dispose();
barrier.AddComponent <MeshAssignTag>(entityInQueryIndex, entity);
#region wtf tbh
void FillFirstRowCache(float chunkSize)
{
// first corner
var voxels = bfe[entity];
CacheFirstCorner(voxels[0]);
int i;
for (i = 0; i < LevelComponent.VoxelResolution - 1; i++)
{
CacheNextEdgeAndCorner(i * 2, voxels[i], voxels[i + 1]);
}
if (xNeighbour != Entity.Null)
{
var n = bfe[xNeighbour][0].Value.CopyDummyX(chunkSize);
CacheNextEdgeAndCorner(i * 2, voxels[i], n);
}
}
void CacheFirstCorner(Voxel voxel)
{
if (voxel.state)
{
rowCacheMax[0] = vertices.Length;
vertices.Add(voxel.position);
}
}
void CacheNextEdgeAndCorner(int index, Voxel xMin, Voxel xMax)
{
Debug.Assert(xMin.position.y == xMax.position.y);
if (xMin.state != xMax.state)
{
rowCacheMax[index + 1] = vertices.Length;
vertices.Add(xMin.XEdgePoint);
}
if (xMax.state)
{
rowCacheMax[index + 2] = vertices.Length;
vertices.Add(xMax.position);
}
}
void TriangulateCellRows(float chunkSize)
{
var voxels = bfe[entity];
int cells = LevelComponent.VoxelResolution - 1;
for (int i = 0, y = 0; y < cells; y++, i++)
{
SwapRowCaches();
CacheFirstCorner(voxels[i + LevelComponent.VoxelResolution]);
CacheNextMiddleEdge(voxels[i], voxels[i + LevelComponent.VoxelResolution]);
for (int x = 0; x < cells; x++, i++)
{
var a = voxels[i];
var b = voxels[i + 1];
var c = voxels[i + LevelComponent.VoxelResolution];
var d = voxels[i + LevelComponent.VoxelResolution + 1];
int cacheIndex = x * 2;
CacheNextEdgeAndCorner(cacheIndex, c, d);
CacheNextMiddleEdge(b, d);
TriangulateCell(cacheIndex, a, b, c, d);
}
if (xNeighbour != Entity.Null)
{
TriangulateGapCell(chunkSize, i);
}
}
}
void SwapRowCaches()
{
var temp = rowCacheMin;
rowCacheMin = rowCacheMax;
rowCacheMax = temp;
}
void CacheNextMiddleEdge(Voxel yMin, Voxel yMax)
{
Debug.Assert(yMin.position.x == yMax.position.x);
Debug.Assert(yMin.position.y < yMax.position.y);
edgeCacheMin = edgeCacheMax;
if (yMin.state != yMax.state)
{
edgeCacheMax = vertices.Length;
vertices.Add(yMin.YEdgePoint);
}
}
void TriangulateGapCell(float chunkSize, int i)
{
Debug.Assert(i % LevelComponent.VoxelResolution == (LevelComponent.VoxelResolution - 1));
var voxels = bfe[entity];
int cacheIndex = (LevelComponent.VoxelResolution - 1) * 2;
var a = voxels[i];
var b = bfe[xNeighbour][i + 1 - LevelComponent.VoxelResolution].Value.CopyDummyX(chunkSize);
var c = voxels[i + LevelComponent.VoxelResolution];
var d = bfe[xNeighbour][i + 1].Value.CopyDummyX(chunkSize);
CacheNextEdgeAndCorner(cacheIndex, voxels[i + LevelComponent.VoxelResolution], d);
CacheNextMiddleEdge(b, d);
TriangulateCell(cacheIndex, a, b, c, d);
}
void TriangulateGapRow(float chunkSize)
{
int cells = LevelComponent.VoxelResolution - 1;
int offset = cells * LevelComponent.VoxelResolution;
var voxels = bfe[entity];
var neighbourVoxels = bfe[yNeighbour];
var dummyY = neighbourVoxels[0].Value.CopyDummyY(chunkSize);
SwapRowCaches();
CacheFirstCorner(dummyY);
CacheNextMiddleEdge(voxels[cells * LevelComponent.VoxelResolution], dummyY);
for (int x = 0; x < cells; x++)
{
var dummyT = dummyY.CopyDummyX(0);
dummyY = neighbourVoxels[x + 1].Value.CopyDummyY(chunkSize);
var cacheIndex = x * 2;
CacheNextEdgeAndCorner(cacheIndex, dummyT, dummyY);
CacheNextMiddleEdge(voxels[x + offset + 1], dummyY);
TriangulateCell(cacheIndex, voxels[x + offset], voxels[x + offset + 1], dummyT, dummyY);
}
if (xyNeighbour != Entity.Null)
{
var leftVoxels = bfe[xNeighbour];
var a = voxels[voxels.Length - 1];
var b = leftVoxels[leftVoxels.Length - LevelComponent.VoxelResolution].Value.CopyDummyX(chunkSize);
var c = neighbourVoxels[LevelComponent.VoxelResolution - 1].Value.CopyDummyY(chunkSize);
var d = bfe[xyNeighbour][0].Value.CopyDummyXY(chunkSize);
Debug.Assert(a.Value.position.x == c.position.x);
Debug.Assert(a.Value.position.y == b.position.y);
Debug.Assert(b.position.x == d.position.x);
Debug.Assert(c.position.y == d.position.y);
var cacheIndex = cells * 2;
CacheNextEdgeAndCorner(cacheIndex, c, d);
CacheNextMiddleEdge(b, d);
TriangulateCell(cacheIndex, a, b, c, d);
}
}
void TriangulateCell(int i, in Voxel a, in Voxel b, in Voxel c, in Voxel d)
{
var cas = 0;
if (a.state)
{
cas |= 0b0001;
}
if (b.state)
{
cas |= 0b0010;
}
if (c.state)
{
cas |= 0b0100;
}
if (d.state)
{
cas |= 0b1000;
}
switch (cas)
{
case 0:
break;
case 1:
AddTriangle(rowCacheMin[i], edgeCacheMin, rowCacheMin[i + 1], ref triangles);
break;
case 2:
AddTriangle(rowCacheMin[i + 2], rowCacheMin[i + 1], edgeCacheMax, ref triangles);
break;
case 3:
AddQuad(rowCacheMin[i], edgeCacheMin, edgeCacheMax, rowCacheMin[i + 2], ref triangles);
break;
case 4:
AddTriangle(rowCacheMax[i], rowCacheMax[i + 1], edgeCacheMin, ref triangles);
break;
case 5:
AddQuad(rowCacheMin[i], rowCacheMax[i], rowCacheMax[i + 1], rowCacheMin[i + 1], ref triangles);
break;
case 6:
AddTriangle(rowCacheMin[i + 2], rowCacheMin[i + 1], edgeCacheMax, ref triangles);
AddTriangle(rowCacheMax[i], rowCacheMax[i + 1], edgeCacheMin, ref triangles);
break;
case 7:
AddPentagon(
rowCacheMin[i], rowCacheMax[i], rowCacheMax[i + 1], edgeCacheMax, rowCacheMin[i + 2], ref triangles);
break;
case 8:
AddTriangle(rowCacheMax[i + 2], edgeCacheMax, rowCacheMax[i + 1], ref triangles);
break;
case 9:
AddTriangle(rowCacheMin[i], edgeCacheMin, rowCacheMin[i + 1], ref triangles);
AddTriangle(rowCacheMax[i + 2], edgeCacheMax, rowCacheMax[i + 1], ref triangles);
break;
case 10:
AddQuad(rowCacheMin[i + 1], rowCacheMax[i + 1], rowCacheMax[i + 2], rowCacheMin[i + 2], ref triangles);
break;
case 11:
AddPentagon(
rowCacheMin[i + 2], rowCacheMin[i], edgeCacheMin, rowCacheMax[i + 1], rowCacheMax[i + 2], ref triangles);
break;
case 12:
AddQuad(edgeCacheMin, rowCacheMax[i], rowCacheMax[i + 2], edgeCacheMax, ref triangles);
break;
case 13:
AddPentagon(
rowCacheMax[i], rowCacheMax[i + 2], edgeCacheMax, rowCacheMin[i + 1], rowCacheMin[i], ref triangles);
break;
case 14:
AddPentagon(
rowCacheMax[i + 2], rowCacheMin[i + 2], rowCacheMin[i + 1], edgeCacheMin, rowCacheMax[i], ref triangles);
break;
case 15:
AddQuad(rowCacheMin[i], rowCacheMax[i], rowCacheMax[i + 2], rowCacheMin[i + 2], ref triangles);
break;
}
}
#endregion
}).Schedule(inputDeps);
m_Barrier.AddJobHandleForProducer(handle);
return(handle);
}
