private bool AddQuads(TempMesh mesh, int submesh, int side, int offset)
{
int x, y, w, h, o;
for (int i = 0; i < used.Count; i++)
{
references[i] = false;
}
bool hasQuads = false;
for (x = 0; x < 16; x++)
{
for (y = 0; y < 16; y++)
{
if (storage[x, y] == -1)
{
continue;
}
if (references[storage[x, y]])
{
continue;
}
o = storage[x, y];
references[o] = true;
for (w = x; w < 16; w++)
{
if (storage[w, y] != o)
{
break;
}
}
for (h = y; h < 16; h++)
{
if (storage[x, h] != o)
{
break;
}
}
w -= x;
h -= y;
AddSingleQuad(mesh, submesh, side, x, y, w, h, offset);
hasQuads = true;
}
}
return(hasQuads);
}
private void RebuildMesh(TempMesh mesh, int submesh, int blockId)
{
int x, y, z, index, next;
for (x = 0; x < 16; x++)
{
for (y = 0; y < 16; y++)
{
for (z = 0; z < 16; z++)
{
index = x * 16 * 16 + y * 16 + z;
if (blocks[index] != blockId)
{
continue;
}
next = (x + 1) * 16 * 16 + y * 16 + z;
if (x == 15 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (x == 15 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 0, y, z, 1, 1, x);
}
}
next = (x - 1) * 16 * 16 + y * 16 + z;
if (x == 0 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (x == 0 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 1, y, z, 1, 1, x);
}
}
next = x * 16 * 16 + (y + 1) * 16 + z;
if (y == 15 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (y == 15 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 2, x, z, 1, 1, y);
}
}
next = x * 16 * 16 + (y - 1) * 16 + z;
if (y == 0 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (y == 0 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 3, x, z, 1, 1, y);
}
}
next = x * 16 * 16 + y * 16 + (z + 1);
if (z == 15 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (z == 15 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 4, x, y, 1, 1, z);
}
}
next = x * 16 * 16 + y * 16 + (z + 1);
if (z == 0 || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0)
{
if (z == 0 || blocks[index] != blocks[next] || (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0)
{
AddSingleQuad(visualMesh, submesh, 5, x, y, 1, 1, z);
}
}
}
}
}
}
private void AddSingleQuad(TempMesh mesh, int submesh, int j, int x, int y, int w, int h, int o)
{
LinkedList <int> triangles = mesh.GetTriangleList(submesh);
LinkedList <Vector3> verts = mesh.GetVertices();
LinkedList <Vector2> uvs = mesh.GetUVs();
int vertexCount = verts.Count;
triangles.AddLast(vertexCount + 0);
triangles.AddLast(vertexCount + 1);
triangles.AddLast(vertexCount + 2);
triangles.AddLast(vertexCount + 0);
triangles.AddLast(vertexCount + 2);
triangles.AddLast(vertexCount + 3);
if (j == 0)
{
float sx = o;
float sy = x;
float sz = y;
float bx = sx + 1;
float by = sy + w;
float bz = sz + h;
verts.AddLast(new Vector3(bx, by, bz));
verts.AddLast(new Vector3(bx, sy, bz));
verts.AddLast(new Vector3(bx, sy, sz));
verts.AddLast(new Vector3(bx, by, sz));
if (uvs != null)
{
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(0, w));
uvs.AddLast(new Vector2(h, w));
uvs.AddLast(new Vector2(h, 0));
}
}
else if (j == 1)
{
float sx = o;
float sy = x;
float sz = y;
float by = sy + w;
float bz = sz + h;
verts.AddLast(new Vector3(sx, sy, sz));
verts.AddLast(new Vector3(sx, sy, bz));
verts.AddLast(new Vector3(sx, by, bz));
verts.AddLast(new Vector3(sx, by, sz));
if (uvs != null)
{
uvs.AddLast(new Vector2(h, w));
uvs.AddLast(new Vector2(0, w));
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(h, 0));
}
}
else if (j == 2)
{
float sx = x;
float sy = o;
float sz = y;
float bx = sx + w;
float by = sy + 1;
float bz = sz + h;
verts.AddLast(new Vector3(sx, by, sz));
verts.AddLast(new Vector3(sx, by, bz));
verts.AddLast(new Vector3(bx, by, bz));
verts.AddLast(new Vector3(bx, by, sz));
if (uvs != null)
{
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(0, h));
uvs.AddLast(new Vector2(w, h));
uvs.AddLast(new Vector2(w, 0));
}
}
else if (j == 3)
{
float sx = x;
float sy = o;
float sz = y;
float bx = sx + w;
float bz = sz + h;
verts.AddLast(new Vector3(bx, sy, bz));
verts.AddLast(new Vector3(sx, sy, bz));
verts.AddLast(new Vector3(sx, sy, sz));
verts.AddLast(new Vector3(bx, sy, sz));
if (uvs != null)
{
uvs.AddLast(new Vector2(w, h));
uvs.AddLast(new Vector2(0, h));
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(w, 0));
}
}
else if (j == 4)
{
float sx = x;
float sy = y;
float sz = o;
float bx = sx + w;
float by = sy + h;
float bz = sz + 1;
verts.AddLast(new Vector3(bx, by, bz));
verts.AddLast(new Vector3(sx, by, bz));
verts.AddLast(new Vector3(sx, sy, bz));
verts.AddLast(new Vector3(bx, sy, bz));
if (uvs != null)
{
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(0, w));
uvs.AddLast(new Vector2(h, w));
uvs.AddLast(new Vector2(h, 0));
}
}
else
{
float sx = x;
float sy = y;
float sz = o;
float bx = sx + w;
float by = sy + h;
verts.AddLast(new Vector3(sx, sy, sz));
verts.AddLast(new Vector3(sx, by, sz));
verts.AddLast(new Vector3(bx, by, sz));
verts.AddLast(new Vector3(bx, sy, sz));
if (uvs != null)
{
uvs.AddLast(new Vector2(0, 0));
uvs.AddLast(new Vector2(0, h));
uvs.AddLast(new Vector2(w, h));
uvs.AddLast(new Vector2(w, 0));
}
}
}
private bool RebuildMeshStrong(TempMesh mesh, int submeshIndex, ushort blockId)
{
int x, y, z, j;
int index, next, end, chunkBegin;
int nearbyOffset;
bool hasQuads = false;
for (j = 0; j < 6; j++)
{
nearbyOffset = j * 4096;
end = j % 2 == 0 ? 15 : 0;
if (j <= 1)
{
for (x = 0; x < 16; x++)
{
for (y = 0; y < 16; y++)
{
for (z = 0; z < 16; z++)
{
index = x * 16 * 16 + y * 16 + z;
if (j == 0)
{
chunkBegin = 0 * 16 * 16 + y * 16 + z;
next = (x + 1) * 16 * 16 + y * 16 + z;
}
else
{
chunkBegin = 15 * 16 * 16 + y * 16 + z;
next = (x - 1) * 16 * 16 + y * 16 + z;
}
quads[y, z] = blocks[index] == blockId;
quads[y, z] &= x == end || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (x != end && blocks[index] == blocks[next])
{
quads[y, z] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
if (x == end)
{
quads[y, z] &= nearbyBlocks[chunkBegin + nearbyOffset] == 0 ||
(nearbyBlockStates[chunkBegin + nearbyOffset] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (blocks[index] == nearbyBlocks[chunkBegin + nearbyOffset])
{
quads[y, z] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
}
}
}
if (GreedyMesher() == 0)
{
continue;
}
hasQuads |= AddQuads(mesh, submeshIndex, j, x);
}
}
else if (j <= 3)
{
for (y = 0; y < 16; y++)
{
for (x = 0; x < 16; x++)
{
for (z = 0; z < 16; z++)
{
index = x * 16 * 16 + y * 16 + z;
if (j == 2)
{
chunkBegin = x * 16 * 16 + 0 * 16 + z;
next = x * 16 * 16 + (y + 1) * 16 + z;
}
else
{
chunkBegin = x * 16 * 16 + 15 * 16 + z;
next = x * 16 * 16 + (y - 1) * 16 + z;
}
quads[x, z] = blocks[index] == blockId;
quads[x, z] &= y == end || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (y != end && blocks[index] == blocks[next])
{
quads[x, z] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
if (y == end)
{
quads[x, z] &= nearbyBlocks[chunkBegin + nearbyOffset] == 0 ||
(nearbyBlockStates[chunkBegin + nearbyOffset] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (blocks[index] == nearbyBlocks[chunkBegin + nearbyOffset])
{
quads[x, z] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
}
}
}
if (GreedyMesher() == 0)
{
continue;
}
hasQuads |= AddQuads(mesh, submeshIndex, j, y);
}
}
else
{
for (z = 0; z < 16; z++)
{
for (x = 0; x < 16; x++)
{
for (y = 0; y < 16; y++)
{
index = x * 16 * 16 + y * 16 + z;
if (j == 4)
{
chunkBegin = x * 16 * 16 + y * 16 + 0;
next = x * 16 * 16 + y * 16 + (z + 1);
}
else
{
chunkBegin = x * 16 * 16 + y * 16 + 15;
next = x * 16 * 16 + y * 16 + (z - 1);
}
quads[x, y] = blocks[index] == blockId;
quads[x, y] &= z == end || blocks[next] == 0 || (blockStates[next] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (z != end && blocks[index] == blocks[next])
{
quads[x, y] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
if (z == end)
{
quads[x, y] &= nearbyBlocks[chunkBegin + nearbyOffset] == 0 ||
(nearbyBlockStates[chunkBegin + nearbyOffset] & MaterialBlock.BLOCK_STATE_TRANSPARENT) > 0;
if (blocks[index] == nearbyBlocks[chunkBegin + nearbyOffset])
{
quads[x, y] &= (blockStates[index] & MaterialBlock.BLOCK_STATE_VIEW_INSIDES) > 0;
}
}
}
}
if (GreedyMesher() == 0)
{
continue;
}
hasQuads |= AddQuads(mesh, submeshIndex, j, z);
}
}
}
return(hasQuads);
}
