/// <summary>
/// Builds the chunk's mesh.
/// </summary>
public void RegenerateVisualMesh(float aVoxelScale)
{
//float startTime = Time.realtimeSinceStartup;
VoxelBlob blob = manager.m_blob;
int3 blobSize = blob.size;
if (sm_regenInUse)
{
Debug.Log("Somehow calling two regens at the same time");
//throw new System.Exception("Cannot run two RegenerateVisualMesh at the same time. If needed, make more static RegenData");
return;
}
sm_regenInUse = true;
sm_regenData.Clear();
needsRegen = false;
int chunkSize = manager.chunkSize;
for (int i = 0; i < 6; ++i)
{
m_hasBuild[0][i] = false;
m_hasWater[i] = false;
m_hasPattern[i] = false;
}
m_mesh.Clear();
m_mesh.subMeshCount = kSubMeshCount;
int3 currVoxel = new int3();
bool hasFaces = false;
int3 maxVals = blobSize - position;
for (int i = 0; i < 3; ++i)
{
maxVals[i] = Mathf.Min(maxVals[i], chunkSize);
}
//Debug.Log("Starting main block");
for (int z = 0; z < maxVals.z && z + position.z < blobSize.z; z += 2)
{
for (int y = 0; y < maxVals.y && y + position.y < blobSize.y; y += 2)
{
for (int x = 0; x < maxVals.x && x + position.x < blobSize.x; x += 2)
{
currVoxel.x = x;
currVoxel.y = y;
currVoxel.z = z;
int2[][] buildIndex = new int2[kNumBuildMats][];
for (int i = 0; i < kNumBuildMats; ++i)
{
buildIndex[i] = new int2[6];
}
int2[] waterIndex = new int2[6];
int2[] patternIndex = new int2[6];
byte voxel;
for (int i = 0; i < 2 && x + i + position.x < blobSize.x; ++i)
{
for (int j = 0; j < 2 && y + j + position.y < blobSize.y; ++j)
{
for (int k = 0; k < 2 && z + k + position.z < blobSize.z; ++k)
{
int3 curr = new int3(currVoxel.x + i, currVoxel.y + j, currVoxel.z + k);
voxel = VoxelAt(curr, blob);
if (voxel != 0)
{
int2[] voxelIndex = null;
switch (voxel)
{
case MeshManager.kVoxelWater:
voxelIndex = waterIndex;
break;
case MeshManager.kVoxelObjectDef:
voxelIndex = patternIndex;
break;
default:
voxelIndex = buildIndex[(int)(voxel - MeshManager.kVoxelFirstMat)];
break;
}
if (curr.x + position.x == 0 || VoxelAt(curr.x - 1, curr.y, curr.z, blob) == 0)
{
voxelIndex[0][i] += (1 << (j * 2 + k));
}
if (curr.x + position.x == blobSize.x - 1 || VoxelAt(curr.x + 1, curr.y, curr.z, blob) == 0)
{
voxelIndex[1][i] += (1 << (j * 2 + k));
}
if (curr.y + position.y == 0 || VoxelAt(curr.x, curr.y - 1, curr.z, blob) == 0)
{
voxelIndex[2][j] += (1 << (k * 2 + i));
}
if (curr.y + position.y == blobSize.y - 1 || VoxelAt(curr.x, curr.y + 1, curr.z, blob) == 0)
{
voxelIndex[3][j] += (1 << (k * 2 + i));
}
if (curr.z + position.z == 0 || VoxelAt(curr.x, curr.y, curr.z - 1, blob) == 0)
{
voxelIndex[4][k] += (1 << (i * 2 + j));
}
if (curr.z + position.z == blobSize.z - 1 || VoxelAt(curr.x, curr.y, curr.z + 1, blob) == 0)
{
voxelIndex[5][k] += (1 << (i * 2 + j));
}
}
}
}
}
for (int i = 0; i < kNumBuildMats; ++i)
{
GenNegXFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
GenPosXFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
GenNegYFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
GenPosYFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
GenNegZFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
GenPosZFaces(currVoxel, ref hasFaces, m_hasBuild[i], buildIndex[i], m_buildOffsets[i]);
}
GenNegXFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenNegXFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
GenPosXFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenPosXFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
GenNegYFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenNegYFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
GenPosYFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenPosYFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
GenNegZFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenNegZFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
GenPosZFaces(currVoxel, ref hasFaces, m_hasWater, waterIndex, kWaterOffset);
GenPosZFaces(currVoxel, ref hasFaces, m_hasPattern, patternIndex, kPatternOffset);
}
}
}
//Debug.Log("Finished main block");
if (!hasFaces)
{
sm_regenInUse = false;
return;
}
m_mesh.name = "Visual Mesh";
m_mesh.vertices = sm_regenData.verts.ToArray();
for (int i = 0; i < kSubMeshCount; ++i)
{
if (sm_regenData.tris[i].Count > 0)
{
m_mesh.SetTriangles(sm_regenData.tris[i].ToArray(), i);
}
}
if (m_mesh.vertexCount > 0)
{
manager.EnableMesh(this);
}
else
{
manager.DisableMesh(this);
}
m_mesh.Optimize();
sm_regenInUse = false;
}